--- /dev/null
+From 2c4dc0ed50b05cd847a4b34b8cebf0775f19aeb9 Mon Sep 17 00:00:00 2001
+From: Norbert Szetei <norbert@doyensec.com>
+Date: Tue, 14 Jul 2026 10:29:23 +0200
+Subject: ALSA: seq: close a re-opened queue timer in the destructor
+
+From: Norbert Szetei <norbert@doyensec.com>
+
+commit 2c4dc0ed50b05cd847a4b34b8cebf0775f19aeb9 upstream.
+
+queue_delete() closes the queue timer, then frees it. snd_seq_timer_close()
+clears q->timer->timeri. snd_use_lock_sync() then drains borrowers, and
+snd_seq_timer_delete() frees q->timer.
+
+A borrower can re-open the timer inside that window. A SET_QUEUE_CLIENT
+that took a queueptr() use_lock reference before the queue was unlinked
+runs snd_seq_timer_open() after the close. Open refuses re-open only while
+timeri is set, and the close just cleared it, so it re-opens timeri.
+
+snd_seq_timer_delete() does not close that instance. Its snd_seq_timer_stop()
+is a no-op, because running was cleared first. So it frees q->timer with the
+instance still live. The queue is freed next.
+
+The instance stays on the global timer with callback_data pointing at the
+freed queue. A non-owner START on the unlocked queue arms it. The next tick
+derefs the freed queue in snd_seq_timer_interrupt().
+
+Reachable by an unprivileged user with access to /dev/snd/seq. No CAP and
+no queue ownership required.
+
+Close any lingering instance in the destructor. There, ->timeri can no
+longer change: the queue is unlinked and all use_lock borrowers have
+drained, so no snd_seq_queue_use() can re-open it. Close it before clearing
+q->timer. snd_timer_close() waits for any in-flight snd_seq_timer_interrupt()
+to finish, and that callback still reads q->timer (via snd_seq_check_queue()),
+so q->timer must stay valid until it drains.
+
+Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
+Cc: stable@vger.kernel.org
+Assisted-by: Claude:claude-opus-4-8
+Signed-off-by: Norbert Szetei <norbert@doyensec.com>
+Link: https://patch.msgid.link/422FDB81-2A68-47C7-A22D-2D3301E2E86D@doyensec.com
+Signed-off-by: Takashi Iwai <tiwai@suse.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ sound/core/seq/seq_timer.c | 13 ++++++++++++-
+ 1 file changed, 12 insertions(+), 1 deletion(-)
+
+--- a/sound/core/seq/seq_timer.c
++++ b/sound/core/seq/seq_timer.c
+@@ -58,12 +58,23 @@ struct snd_seq_timer *snd_seq_timer_new(
+ void snd_seq_timer_delete(struct snd_seq_timer **tmr)
+ {
+ struct snd_seq_timer *t = *tmr;
+- *tmr = NULL;
++ struct snd_timer_instance *ti;
+
+ if (t == NULL) {
+ pr_debug("ALSA: seq: snd_seq_timer_delete() called with NULL timer\n");
+ return;
+ }
++
++ scoped_guard(spinlock_irq, &t->lock) {
++ ti = t->timeri;
++ t->timeri = NULL;
++ }
++ if (ti) {
++ snd_timer_close(ti);
++ snd_timer_instance_free(ti);
++ }
++
++ *tmr = NULL;
+ t->running = 0;
+
+ /* reset time */
--- /dev/null
+From bbf5f639918dc011aaf60aab8480218758ee68c5 Mon Sep 17 00:00:00 2001
+From: Christian Brauner <brauner@kernel.org>
+Date: Mon, 20 Jul 2026 14:36:49 +0200
+Subject: binfmt_misc: set have_execfd only once the interpreter is opened
+
+From: Christian Brauner <brauner@kernel.org>
+
+commit bbf5f639918dc011aaf60aab8480218758ee68c5 upstream.
+
+load_misc_binary() raises bprm->have_execfd as soon as it sees the 'O'
+(or 'C') flag. This happens well before it opens the interpreter. If
+that open fails the flag stays set on the bprm. binfmt_misc is at the
+head of the format list so an interpreter open failure that returns
+-ENOEXEC lets the search fall through to a later format. This means it
+runs the matched binary directly having never staged an interpreter. So
+bprm->executable is NULL while have_execfd falsely claims a descriptor
+is present.
+
+Consequently, begin_new_exec() dereferences the missing executable:
+
+ would_dump(bprm, bprm->executable);
+
+and NULL derefs. Had it not, the hand-off later in the same function
+would have failed anyway. FD_ADD(0, bprm->executable) rejects a NULL
+file with -ENOMEM. Both sites are past the point of no return so the
+exec cannot be unwound either way.
+
+This can be reached by unprivileged users as binfmt_misc can be mounted
+in user namespaces. So a user can register an 'O' entry whose
+interpreter lives on a FUSE mount, have the FUSE server fail the open
+with -ENOEXEC and execute a native ELF file that matches the entry.
+
+have_execfd only means anything alongside the executable it describes
+which is not set until the interpreter has been opened and staged.
+So lets raise it there, next to execfd_creds, which is already set at
+that point. An open failure now leaves it clear, so the fallback format
+derives credentials from the binary and emits no AT_EXECFD, as it would
+for any native exec. The argv rewrite load_misc_binary() performs before
+the open is still not undone. This means the binary sees the interpreter
+path in argv[0] and its own path in argv[1] but that predates this
+change and only became observable once the exec stopped faulting.
+
+Link: https://patch.msgid.link/20260720-beglichen-kognitiv-organismus-5e1e55326c56@brauner
+Fixes: bc2bf338d54b ("exec: Remove recursion from search_binary_handler")
+Cc: stable@vger.kernel.org
+Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/binfmt_misc.c | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+--- a/fs/binfmt_misc.c
++++ b/fs/binfmt_misc.c
+@@ -199,9 +199,6 @@ static int load_misc_binary(struct linux
+ goto ret;
+ }
+
+- if (fmt->flags & MISC_FMT_OPEN_BINARY)
+- bprm->have_execfd = 1;
+-
+ /* make argv[1] be the path to the binary */
+ retval = copy_string_kernel(bprm->interp, bprm);
+ if (retval < 0)
+@@ -231,6 +228,8 @@ static int load_misc_binary(struct linux
+ goto ret;
+
+ bprm->interpreter = interp_file;
++ if (fmt->flags & MISC_FMT_OPEN_BINARY)
++ bprm->have_execfd = 1;
+ if (fmt->flags & MISC_FMT_CREDENTIALS)
+ bprm->execfd_creds = 1;
+
--- /dev/null
+From e9027ffbf5a0f3c12ca8900822e884eae9f0821b Mon Sep 17 00:00:00 2001
+From: Chengfeng Ye <nicoyip.dev@gmail.com>
+Date: Mon, 20 Jul 2026 00:24:27 +0800
+Subject: Bluetooth: hci_sync: Protect UUID list traversal
+
+From: Chengfeng Ye <nicoyip.dev@gmail.com>
+
+commit e9027ffbf5a0f3c12ca8900822e884eae9f0821b upstream.
+
+The hci_sync conversion moved class-of-device and EIR generation from an
+HCI request built under hdev->lock to asynchronous command sync work.
+The worker holds hdev->req_lock, but that lock does not serialize access
+to hdev->uuids against add_uuid() and remove_uuid(), which update the
+list under hdev->lock.
+
+The following interleaving can therefore occur:
+
+ CPU0 (command sync work) CPU1 (management socket)
+ fetch uuid from the list
+ list_del(&uuid->list)
+ kfree(uuid)
+ read uuid->size
+
+KASAN reports the resulting use-after-free:
+
+ BUG: KASAN: slab-use-after-free in eir_create+0xb8f/0xee0
+ Read of size 1 at addr ffff88810dbd8620 by task kworker/u17:0/87
+ Workqueue: hci0 hci_cmd_sync_work
+ Call Trace:
+ eir_create+0xb8f/0xee0
+ hci_update_eir_sync+0x1c0/0x330
+ hci_cmd_sync_work+0x13c/0x290
+ process_one_work+0x63a/0x1070
+ worker_thread+0x45b/0xd10
+
+ Allocated by task 86:
+ __kasan_kmalloc+0x8f/0xa0
+ add_uuid+0x18a/0x4b0
+ hci_sock_sendmsg+0x1033/0x1ea0
+
+ Freed by task 92:
+ __kasan_slab_free+0x43/0x70
+ kfree+0x131/0x3c0
+ remove_uuid+0x25e/0x560
+ hci_sock_sendmsg+0x1033/0x1ea0
+
+Hold hdev->lock while generating and committing the class-of-device and
+EIR snapshots. Release it before sending an HCI command, so controller
+waits do not happen under the device lock. This protects all UUID list
+walks in these paths and restores the serialization lost in the command
+sync conversion.
+
+Fixes: 161510ccf91c ("Bluetooth: hci_sync: Make use of hci_cmd_sync_queue set 1")
+Cc: stable@vger.kernel.org
+Signed-off-by: Chengfeng Ye <nicoyip.dev@gmail.com>
+Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/bluetooth/hci_sync.c | 13 +++++++++++--
+ 1 file changed, 11 insertions(+), 2 deletions(-)
+
+--- a/net/bluetooth/hci_sync.c
++++ b/net/bluetooth/hci_sync.c
+@@ -903,12 +903,16 @@ int hci_update_eir_sync(struct hci_dev *
+
+ memset(&cp, 0, sizeof(cp));
+
++ hci_dev_lock(hdev);
+ eir_create(hdev, cp.data);
+
+- if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0)
++ if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0) {
++ hci_dev_unlock(hdev);
+ return 0;
++ }
+
+ memcpy(hdev->eir, cp.data, sizeof(cp.data));
++ hci_dev_unlock(hdev);
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_WRITE_EIR, sizeof(cp), &cp,
+ HCI_CMD_TIMEOUT);
+@@ -940,6 +944,7 @@ int hci_update_class_sync(struct hci_dev
+ if (hci_dev_test_flag(hdev, HCI_SERVICE_CACHE))
+ return 0;
+
++ hci_dev_lock(hdev);
+ cod[0] = hdev->minor_class;
+ cod[1] = hdev->major_class;
+ cod[2] = get_service_classes(hdev);
+@@ -947,8 +952,12 @@ int hci_update_class_sync(struct hci_dev
+ if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE))
+ cod[1] |= 0x20;
+
+- if (memcmp(cod, hdev->dev_class, 3) == 0)
++ if (memcmp(cod, hdev->dev_class, 3) == 0) {
++ hci_dev_unlock(hdev);
+ return 0;
++ }
++
++ hci_dev_unlock(hdev);
+
+ return __hci_cmd_sync_status(hdev, HCI_OP_WRITE_CLASS_OF_DEV,
+ sizeof(cod), cod, HCI_CMD_TIMEOUT);
--- /dev/null
+From c783399efc22d035443f1dfbf2a09bf9562aaa5e Mon Sep 17 00:00:00 2001
+From: Chengfeng Ye <nicoyip.dev@gmail.com>
+Date: Mon, 20 Jul 2026 00:03:11 +0800
+Subject: Bluetooth: RFCOMM: Fix session UAF in set_termios
+
+From: Chengfeng Ye <nicoyip.dev@gmail.com>
+
+commit c783399efc22d035443f1dfbf2a09bf9562aaa5e upstream.
+
+rfcomm_tty_set_termios() tests dlc->session without rfcomm_mutex and
+later passes the pointer to rfcomm_send_rpn(). The latter dereferences
+both session->initiator and session->sock. Meanwhile, krfcommd can
+unlink the DLC and free the session while holding rfcomm_mutex.
+
+The race can proceed as follows:
+
+ TTY ioctl task krfcommd
+ -------------- --------
+ load dlc->session
+ enter rfcomm_send_rpn()
+ lock rfcomm_mutex
+ clear dlc->session
+ free session
+ unlock rfcomm_mutex
+ read session->initiator
+
+KASAN reported:
+
+ BUG: KASAN: slab-use-after-free in rfcomm_send_rpn+0x297/0x2a0
+ Read of size 4 at addr ffff88810012a850 by task poc/92
+
+ Call Trace:
+ rfcomm_send_rpn+0x297/0x2a0
+ rfcomm_tty_set_termios+0x50d/0x850
+ tty_set_termios+0x596/0x950
+ set_termios+0x46a/0x6e0
+ tty_mode_ioctl+0x152/0xbd0
+ tty_ioctl+0x915/0x1240
+ __x64_sys_ioctl+0x134/0x1c0
+
+ Allocated by task 92:
+ rfcomm_session_add+0x9e/0x2e0
+ rfcomm_dlc_open+0x8b1/0xe00
+ rfcomm_dev_activate+0x85/0x1a0
+ rfcomm_tty_open+0x90/0x280
+
+ Freed by task 68:
+ kfree+0x131/0x3c0
+ rfcomm_session_del+0x119/0x180
+ rfcomm_run+0x737/0x4710
+
+Add rfcomm_dlc_send_rpn(), which holds rfcomm_mutex while it verifies
+that the DLC is still attached and sends the RPN frame. Have the TTY
+path use the helper and drop its unlocked session check. This keeps the
+session valid through both the frame construction and socket send.
+
+Fixes: 3a5e903c09ae ("[Bluetooth]: Implement RFCOMM remote port negotiation")
+Cc: stable@vger.kernel.org
+Signed-off-by: Chengfeng Ye <nicoyip.dev@gmail.com>
+Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ include/net/bluetooth/rfcomm.h | 3 +++
+ net/bluetooth/rfcomm/core.c | 17 +++++++++++++++++
+ net/bluetooth/rfcomm/tty.c | 7 +++----
+ 3 files changed, 23 insertions(+), 4 deletions(-)
+
+--- a/include/net/bluetooth/rfcomm.h
++++ b/include/net/bluetooth/rfcomm.h
+@@ -229,6 +229,9 @@ int rfcomm_send_rpn(struct rfcomm_sessio
+ u8 bit_rate, u8 data_bits, u8 stop_bits,
+ u8 parity, u8 flow_ctrl_settings,
+ u8 xon_char, u8 xoff_char, u16 param_mask);
++int rfcomm_dlc_send_rpn(struct rfcomm_dlc *d, u8 bit_rate, u8 data_bits,
++ u8 stop_bits, u8 parity, u8 flow_ctrl_settings,
++ u8 xon_char, u8 xoff_char, u16 param_mask);
+
+ /* ---- RFCOMM DLCs (channels) ---- */
+ struct rfcomm_dlc *rfcomm_dlc_alloc(gfp_t prio);
+--- a/net/bluetooth/rfcomm/core.c
++++ b/net/bluetooth/rfcomm/core.c
+@@ -1027,6 +1027,23 @@ int rfcomm_send_rpn(struct rfcomm_sessio
+ return rfcomm_send_frame(s, buf, ptr - buf);
+ }
+
++int rfcomm_dlc_send_rpn(struct rfcomm_dlc *d, u8 bit_rate, u8 data_bits,
++ u8 stop_bits, u8 parity, u8 flow_ctrl_settings,
++ u8 xon_char, u8 xoff_char, u16 param_mask)
++{
++ int err = -ENOTCONN;
++
++ rfcomm_lock();
++ if (d->session)
++ err = rfcomm_send_rpn(d->session, 1, d->dlci, bit_rate,
++ data_bits, stop_bits, parity,
++ flow_ctrl_settings, xon_char, xoff_char,
++ param_mask);
++ rfcomm_unlock();
++
++ return err;
++}
++
+ static int rfcomm_send_rls(struct rfcomm_session *s, int cr, u8 dlci, u8 status)
+ {
+ struct rfcomm_hdr *hdr;
+--- a/net/bluetooth/rfcomm/tty.c
++++ b/net/bluetooth/rfcomm/tty.c
+@@ -863,7 +863,7 @@ static void rfcomm_tty_set_termios(struc
+
+ BT_DBG("tty %p termios %p", tty, old);
+
+- if (!dev || !dev->dlc || !dev->dlc->session)
++ if (!dev || !dev->dlc)
+ return;
+
+ /* Handle turning off CRTSCTS */
+@@ -984,9 +984,8 @@ static void rfcomm_tty_set_termios(struc
+ }
+
+ if (changes)
+- rfcomm_send_rpn(dev->dlc->session, 1, dev->dlc->dlci, baud,
+- data_bits, stop_bits, parity,
+- RFCOMM_RPN_FLOW_NONE, x_on, x_off, changes);
++ rfcomm_dlc_send_rpn(dev->dlc, baud, data_bits, stop_bits, parity,
++ RFCOMM_RPN_FLOW_NONE, x_on, x_off, changes);
+ }
+
+ static void rfcomm_tty_throttle(struct tty_struct *tty)
--- /dev/null
+From 16cc4f5c1c4b9e45eca7f7deefa5410a292db599 Mon Sep 17 00:00:00 2001
+From: Christian Brauner <brauner@kernel.org>
+Date: Tue, 21 Jul 2026 12:08:49 +0200
+Subject: exec: fix unsigned loop counter wrap in transfer_args_to_stack()
+
+From: Christian Brauner <brauner@kernel.org>
+
+commit 16cc4f5c1c4b9e45eca7f7deefa5410a292db599 upstream.
+
+The stop value is derived from bprm->p >> PAGE_SHIFT. The index variable
+is an unsigned long. If bprm->p drops below PAGE_SIZE and stop becomes
+zero the loop condition index >= stop is always true.
+
+After the index == 0 iteration the decrement wraps to ULONG_MAX and
+bprm->page[ULONG_MAX] reads sizeof(void *) bytes in front of the array.
+The pointer has wrapped to -1. That garbage pointer is then passed to
+kmap_local_page() and PAGE_SIZE bytes are copied from wherever that
+lands into the stack of the process being created. And the loop doesn't
+terminate either...
+
+Getting there only requires bprm->p < PAGE_SIZE. On !MMU
+bprm_set_stack_limit() and bprm_hit_stack_limit() are empty. So the only
+constraint on how far bprm->p is pushed down is valid_arg_len(), i.e.
+that each individual string still fits in what is left.
+
+bprm->p starts at PAGE_SIZE * MAX_ARG_PAGES - sizeof(void *) so a
+single argument or environment string of a little over 31 pages leaves
+it in the first page:
+
+ Oops - load access fault [#1]
+ CPU: 0 UID: 0 PID: 1 Comm: victim Not tainted 7.2.0-rc4 #1
+ epc : __memcpy+0xd4/0xf8
+ ra : transfer_args_to_stack+0xaa/0xae
+ s4 : ffffffffffffffff s2 : 0000000000000000
+ a1 : ffffffdc98000000 a2 : 0000000000001000
+ status: 0000000a00001880 badaddr: ffffffdc98000000 cause: 0000000000000005
+ [<801a5324>] __memcpy+0xd4/0xf8
+ [<800d5f6a>] load_flat_binary+0x43a/0x65e
+ [<800a2de4>] bprm_execve+0x1d4/0x316
+ [<800a351a>] do_execveat_common+0x12e/0x138
+ [<800a3d44>] __riscv_sys_execve+0x38/0x4e
+ Kernel panic - not syncing: Fatal exception in interrupt
+
+This is an arcane bug but we should still fix it.
+
+Count down from MAX_ARG_PAGES so the loop ends when index reaches stop,
+stop == 0 included. The iterations performed are unchanged for every
+other value of stop.
+
+Only CONFIG_MMU=n builds are affected, transfer_args_to_stack() is used
+by binfmt_flat and binfmt_elf_fdpic on nommu only.
+
+The loop predates git history. commit 7e7ec6a93434
+("elf_fdpic_transfer_args_to_stack(): make it generic") only moved it
+from binfmt_elf_fdpic.c into fs/exec.c and narrowed the copy to the used
+part of the first page. The condition and the decrement are unchanged
+from 2.6.12-rc2.
+
+Link: https://patch.msgid.link/20260721-hochachtung-staumauer-pigmente-15d71f7d7d04@brauner
+Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
+Cc: stable@vger.kernel.org
+Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
+Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/exec.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/fs/exec.c
++++ b/fs/exec.c
+@@ -884,7 +884,7 @@ int transfer_args_to_stack(struct linux_
+ stop = bprm->p >> PAGE_SHIFT;
+ sp = *sp_location;
+
+- for (index = MAX_ARG_PAGES - 1; index >= stop; index--) {
++ for (index = MAX_ARG_PAGES; index-- > stop; ) {
+ unsigned int offset = index == stop ? bprm->p & ~PAGE_MASK : 0;
+ char *src = kmap_local_page(bprm->page[index]) + offset;
+ sp -= PAGE_SIZE - offset;
--- /dev/null
+From 1a65db225b25bb8c8febf16974c060e0cc242eb9 Mon Sep 17 00:00:00 2001
+From: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
+Date: Tue, 28 Apr 2026 16:50:08 +0200
+Subject: media: pci: dm1105: Free allocated workqueue
+
+From: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
+
+commit 1a65db225b25bb8c8febf16974c060e0cc242eb9 upstream.
+
+Destroy allocated workqueue in remove() callback to free its resources,
+thus fixing memory leak.
+
+Fixes: 519a4bdcf822 ("V4L/DVB (11984): Add support for yet another SDMC DM1105 based DVB-S card.")
+Cc: <stable@vger.kernel.org>
+Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/pci/dm1105/dm1105.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/media/pci/dm1105/dm1105.c
++++ b/drivers/media/pci/dm1105/dm1105.c
+@@ -1193,6 +1193,7 @@ static void dm1105_remove(struct pci_dev
+
+ dm1105_hw_exit(dev);
+ free_irq(pdev->irq, dev);
++ destroy_workqueue(dev->wq);
+ pci_iounmap(pdev, dev->io_mem);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
--- /dev/null
+From 906e410dcffbbd99fb4081abab817a830033aa28 Mon Sep 17 00:00:00 2001
+From: Valery Borovsky <vebohr@gmail.com>
+Date: Wed, 13 May 2026 08:42:44 +0300
+Subject: media: pwc: Drain fill_buf on start_streaming() failure
+
+From: Valery Borovsky <vebohr@gmail.com>
+
+commit 906e410dcffbbd99fb4081abab817a830033aa28 upstream.
+
+pwc_isoc_init() submits its isochronous URBs with
+usb_submit_urb(.., GFP_KERNEL) in a loop. After the first URB is
+submitted, its completion handler pwc_isoc_handler() can run on another
+CPU before the loop finishes:
+
+ start_streaming()
+ pwc_isoc_init()
+ usb_submit_urb(urbs[0], GFP_KERNEL)
+ pwc_isoc_handler(urbs[0])
+ pdev->fill_buf =
+ pwc_get_next_fill_buf(pdev)
+ usb_submit_urb(urbs[i>0], ..) -> fails
+ pwc_isoc_cleanup(pdev) /* kills URBs */
+ return ret;
+ pwc_cleanup_queued_bufs(pdev, VB2_BUF_STATE_QUEUED)
+
+pwc_get_next_fill_buf() detaches a buffer from pdev->queued_bufs and
+stores it in pdev->fill_buf. The error path in start_streaming() only
+drains pdev->queued_bufs, so the buffer parked in pdev->fill_buf is
+leaked. vb2_start_streaming() then triggers
+WARN_ON(owned_by_drv_count).
+
+stop_streaming() already handles this since commit 80b0963e1698
+("[media] pwc: fix WARN_ON"), which added the fill_buf drain in the
+teardown path but not in the start_streaming() error path. Mirror that
+handling on failure so start_streaming() returns with no buffer owned
+by the driver.
+
+Issue identified by automated review of the INV-003 series at
+https://sashiko.dev/
+
+Fixes: 885fe18f5542 ("[media] pwc: Replace private buffer management code with videobuf2")
+Cc: stable@vger.kernel.org
+Signed-off-by: Valery Borovsky <vebohr@gmail.com>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/usb/pwc/pwc-if.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/media/usb/pwc/pwc-if.c
++++ b/drivers/media/usb/pwc/pwc-if.c
+@@ -727,6 +727,11 @@ static int start_streaming(struct vb2_qu
+ pwc_camera_power(pdev, 0);
+ /* And cleanup any queued bufs!! */
+ pwc_cleanup_queued_bufs(pdev, VB2_BUF_STATE_QUEUED);
++ if (pdev->fill_buf) {
++ vb2_buffer_done(&pdev->fill_buf->vb.vb2_buf,
++ VB2_BUF_STATE_QUEUED);
++ pdev->fill_buf = NULL;
++ }
+ }
+ mutex_unlock(&pdev->v4l2_lock);
+
--- /dev/null
+From 975b2ee20e569d47821e4f6c9761b4664d48a6a4 Mon Sep 17 00:00:00 2001
+From: Valery Borovsky <vebohr@gmail.com>
+Date: Mon, 11 May 2026 20:12:08 +0300
+Subject: media: pwc: Return queued buffers on start_streaming() failure
+
+From: Valery Borovsky <vebohr@gmail.com>
+
+commit 975b2ee20e569d47821e4f6c9761b4664d48a6a4 upstream.
+
+The vb2 framework hands buffers to the driver via buf_queue() before
+calling start_streaming(). If start_streaming() returns an error
+without first returning those buffers via vb2_buffer_done(),
+vb2_start_streaming() fires WARN_ON(owned_by_drv_count) and the queued
+buffers leak.
+
+pwc's start_streaming() had two early returns that hit this trap:
+-ENODEV when the USB device was already disconnected, and -ERESTARTSYS
+when mutex_lock_interruptible() was interrupted by a signal. Call the
+existing pwc_cleanup_queued_bufs() helper with VB2_BUF_STATE_QUEUED
+before returning (matching the state already used by the
+pwc_isoc_init() error path in the same function).
+
+This mirrors the uvcvideo fix in commit 4cf3b6fd54eb ("media: uvcvideo:
+Return queued buffers on start_streaming() failure").
+
+Fixes: ceede9fa8939 ("[media] pwc: Fix locking")
+Cc: stable@vger.kernel.org
+Signed-off-by: Valery Borovsky <vebohr@gmail.com>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/usb/pwc/pwc-if.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+--- a/drivers/media/usb/pwc/pwc-if.c
++++ b/drivers/media/usb/pwc/pwc-if.c
+@@ -711,11 +711,15 @@ static int start_streaming(struct vb2_qu
+ struct pwc_device *pdev = vb2_get_drv_priv(vq);
+ int r;
+
+- if (!pdev->udev)
++ if (!pdev->udev) {
++ pwc_cleanup_queued_bufs(pdev, VB2_BUF_STATE_QUEUED);
+ return -ENODEV;
++ }
+
+- if (mutex_lock_interruptible(&pdev->v4l2_lock))
++ if (mutex_lock_interruptible(&pdev->v4l2_lock)) {
++ pwc_cleanup_queued_bufs(pdev, VB2_BUF_STATE_QUEUED);
+ return -ERESTARTSYS;
++ }
+ /* Turn on camera and set LEDS on */
+ pwc_camera_power(pdev, 1);
+ pwc_set_leds(pdev, leds[0], leds[1]);
--- /dev/null
+From 436a693af04ffb889aaf87cb69ec1f2b21d3569c Mon Sep 17 00:00:00 2001
+From: Myeonghun Pak <mhun512@gmail.com>
+Date: Wed, 13 May 2026 16:02:37 +0900
+Subject: media: radio-si476x: Unregister v4l2_device on probe failure
+
+From: Myeonghun Pak <mhun512@gmail.com>
+
+commit 436a693af04ffb889aaf87cb69ec1f2b21d3569c upstream.
+
+si476x_radio_probe() registers radio->v4l2dev before allocating the V4L2
+controls and before registering the video device. If any of those later
+steps fails, probe returns through the exit label after freeing only the
+control handler.
+
+A failed probe does not call si476x_radio_remove(), so the
+v4l2_device_unregister() there is not reached. This leaves the parent
+device reference taken by v4l2_device_register() behind on the error path.
+
+Unregister the V4L2 device in the probe error path after freeing the
+controls.
+
+Fixes: b879a9c2a755 ("[media] v4l2: Add a V4L2 driver for SI476X MFD")
+Cc: stable@vger.kernel.org
+Co-developed-by: Ijae Kim <ae878000@gmail.com>
+Signed-off-by: Ijae Kim <ae878000@gmail.com>
+Signed-off-by: Myeonghun Pak <mhun512@gmail.com>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/radio/radio-si476x.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/media/radio/radio-si476x.c
++++ b/drivers/media/radio/radio-si476x.c
+@@ -1495,6 +1495,7 @@ static int si476x_radio_probe(struct pla
+ return 0;
+ exit:
+ v4l2_ctrl_handler_free(radio->videodev.ctrl_handler);
++ v4l2_device_unregister(&radio->v4l2dev);
+ return rval;
+ }
+
--- /dev/null
+From 680daf40a82d483949f87f0d8f98639dc47e610c Mon Sep 17 00:00:00 2001
+From: Deepanshu Kartikey <kartikey406@gmail.com>
+Date: Wed, 22 Apr 2026 20:17:34 +0530
+Subject: media: rtl2832: fix use-after-free in rtl2832_remove()
+
+From: Deepanshu Kartikey <kartikey406@gmail.com>
+
+commit 680daf40a82d483949f87f0d8f98639dc47e610c upstream.
+
+cancel_delayed_work_sync() is called before i2c_mux_del_adapters()
+in rtl2832_remove(). While the cancel waits for any running instance
+of i2c_gate_work to finish, it does not prevent the timer from being
+rescheduled by a concurrent thread.
+
+During probe, the r820t_attach() call attempts I2C transfers through
+the mux adapter. These transfers go through i2c_mux_master_xfer(),
+which calls rtl2832_deselect() after the transfer completes,
+rescheduling i2c_gate_work via schedule_delayed_work(). If this
+transfer is still in flight when rtl2832_remove() runs,
+rtl2832_deselect() can reschedule i2c_gate_work after it has been
+cancelled, causing a use-after-free when kfree(dev) is called.
+
+Fix this by calling i2c_mux_del_adapters() before
+cancel_delayed_work_sync(). Once the mux adapter is unregistered, no
+new I2C transfers can go through it, so rtl2832_deselect() can no
+longer reschedule i2c_gate_work. The subsequent
+cancel_delayed_work_sync() is then guaranteed to be final.
+
+Fixes: cddcc40b1b15 ("[media] rtl2832: convert to use an explicit i2c mux core")
+Cc: stable@vger.kernel.org
+Reported-by: syzbot+019ced393ab913002b75@syzkaller.appspotmail.com
+Closes: https://syzkaller.appspot.com/bug?extid=019ced393ab913002b75
+Signed-off-by: Deepanshu Kartikey <kartikey406@gmail.com>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/dvb-frontends/rtl2832.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/media/dvb-frontends/rtl2832.c
++++ b/drivers/media/dvb-frontends/rtl2832.c
+@@ -1116,10 +1116,10 @@ static void rtl2832_remove(struct i2c_cl
+
+ dev_dbg(&client->dev, "\n");
+
+- cancel_delayed_work_sync(&dev->i2c_gate_work);
+-
+ i2c_mux_del_adapters(dev->muxc);
+
++ cancel_delayed_work_sync(&dev->i2c_gate_work);
++
+ regmap_exit(dev->regmap);
+
+ kfree(dev);
--- /dev/null
+From 33ca0aab6f4bd90921fc1395478f38f72c4d19af Mon Sep 17 00:00:00 2001
+From: Valery Borovsky <vebohr@gmail.com>
+Date: Mon, 11 May 2026 20:12:09 +0300
+Subject: media: rtl2832_sdr: Return queued buffers on start_streaming() failure
+
+From: Valery Borovsky <vebohr@gmail.com>
+
+commit 33ca0aab6f4bd90921fc1395478f38f72c4d19af upstream.
+
+The vb2 framework hands buffers to the driver via buf_queue() before
+calling start_streaming(). If start_streaming() returns an error
+without first returning those buffers via vb2_buffer_done(),
+vb2_start_streaming() fires WARN_ON(owned_by_drv_count) and the queued
+buffers leak.
+
+rtl2832_sdr_start_streaming() had multiple error paths that hit this
+trap: two direct early returns (-ENODEV, -ERESTARTSYS), plus six
+`goto err` paths covering subdev s_power, tuner setup, ADC setup,
+stream-buffer allocation, urb allocation, and urb submission failures.
+None of them returned the queued buffers.
+
+The original function had no distinct success exit and fell straight
+through into the err label, which previously only did mutex_unlock and
+"return ret". Adding queued-buffer cleanup at err must therefore be
+paired with an explicit success return; otherwise every successful
+start would also drain the buffer queue and kill streaming. Add that
+success return, then add rtl2832_sdr_cleanup_queued_bufs() at the err
+label and before each early return.
+
+The cleanup helper takes a vb2_buffer_state argument so that the
+start_streaming error paths can pass VB2_BUF_STATE_QUEUED (as
+expected by userspace on start_streaming failure) while stop_streaming
+keeps its existing VB2_BUF_STATE_ERROR semantics.
+
+This mirrors the uvcvideo fix in commit 4cf3b6fd54eb ("media: uvcvideo:
+Return queued buffers on start_streaming() failure").
+
+The err label still does not roll back power_ctrl(), frontend_ctrl(),
+the POWER_ON flag, or stream/URB allocations that may have happened
+before the failing step. Those are pre-existing leaks of a different
+class and are not addressed here.
+
+Fixes: 771138920eaf ("[media] rtl2832_sdr: Realtek RTL2832 SDR driver module")
+Cc: stable@vger.kernel.org
+Signed-off-by: Valery Borovsky <vebohr@gmail.com>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/dvb-frontends/rtl2832_sdr.c | 19 ++++++++++++++-----
+ 1 file changed, 14 insertions(+), 5 deletions(-)
+
+--- a/drivers/media/dvb-frontends/rtl2832_sdr.c
++++ b/drivers/media/dvb-frontends/rtl2832_sdr.c
+@@ -399,7 +399,8 @@ static int rtl2832_sdr_alloc_urbs(struct
+ }
+
+ /* Must be called with vb_queue_lock hold */
+-static void rtl2832_sdr_cleanup_queued_bufs(struct rtl2832_sdr_dev *dev)
++static void rtl2832_sdr_cleanup_queued_bufs(struct rtl2832_sdr_dev *dev,
++ enum vb2_buffer_state state)
+ {
+ struct platform_device *pdev = dev->pdev;
+ unsigned long flags;
+@@ -413,7 +414,7 @@ static void rtl2832_sdr_cleanup_queued_b
+ buf = list_entry(dev->queued_bufs.next,
+ struct rtl2832_sdr_frame_buf, list);
+ list_del(&buf->list);
+- vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
++ vb2_buffer_done(&buf->vb.vb2_buf, state);
+ }
+ spin_unlock_irqrestore(&dev->queued_bufs_lock, flags);
+ }
+@@ -854,11 +855,15 @@ static int rtl2832_sdr_start_streaming(s
+
+ dev_dbg(&pdev->dev, "\n");
+
+- if (!dev->udev)
++ if (!dev->udev) {
++ rtl2832_sdr_cleanup_queued_bufs(dev, VB2_BUF_STATE_QUEUED);
+ return -ENODEV;
++ }
+
+- if (mutex_lock_interruptible(&dev->v4l2_lock))
++ if (mutex_lock_interruptible(&dev->v4l2_lock)) {
++ rtl2832_sdr_cleanup_queued_bufs(dev, VB2_BUF_STATE_QUEUED);
+ return -ERESTARTSYS;
++ }
+
+ if (d->props->power_ctrl)
+ d->props->power_ctrl(d, 1);
+@@ -899,7 +904,11 @@ static int rtl2832_sdr_start_streaming(s
+ if (ret)
+ goto err;
+
++ mutex_unlock(&dev->v4l2_lock);
++ return 0;
++
+ err:
++ rtl2832_sdr_cleanup_queued_bufs(dev, VB2_BUF_STATE_QUEUED);
+ mutex_unlock(&dev->v4l2_lock);
+
+ return ret;
+@@ -919,7 +928,7 @@ static void rtl2832_sdr_stop_streaming(s
+ rtl2832_sdr_kill_urbs(dev);
+ rtl2832_sdr_free_urbs(dev);
+ rtl2832_sdr_free_stream_bufs(dev);
+- rtl2832_sdr_cleanup_queued_bufs(dev);
++ rtl2832_sdr_cleanup_queued_bufs(dev, VB2_BUF_STATE_ERROR);
+ rtl2832_sdr_unset_adc(dev);
+
+ /* sleep tuner */
--- /dev/null
+From f86ed548386e3050e5f8f25b450d09dc009d9a88 Mon Sep 17 00:00:00 2001
+From: Ma Ke <make24@iscas.ac.cn>
+Date: Thu, 2 Apr 2026 15:35:29 +0800
+Subject: media: saa7134: Fix a possible memory leak in saa7134_video_init1
+
+From: Ma Ke <make24@iscas.ac.cn>
+
+commit f86ed548386e3050e5f8f25b450d09dc009d9a88 upstream.
+
+In saa7134_video_init1(), the return value of the first
+saa7134_pgtable_alloc() is not checked. If it fails, the function
+continues as if successful, leaving the driver with an invalid page
+table. Additionally, if vb2_queue_init() for the VBI queue fails after
+the video queue page table has been allocated, the allocated memory is
+not freed before returning. The second saa7134_pgtable_alloc() also
+lacks a return value check. Errors occur during device probing before
+the device is fully registered, the normal cleanup path in
+saa7134_finidev() is not executed, leading to memory leaks and
+potential use of uninitialized DMA resources.
+
+Check the return value of both saa7134_pgtable_alloc() calls and
+propagate errors. On failure of any later step, free allocated page
+tables to avoid memory leaks. Ensure control handlers are also
+released on error to prevent further resource leakage.
+
+Found by code review.
+
+Signed-off-by: Ma Ke <make24@iscas.ac.cn>
+Cc: stable@vger.kernel.org
+Fixes: a00e68888d5d ("[media] saa7134: move saa7134_pgtable to saa7134_dmaqueue")
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/pci/saa7134/saa7134-video.c | 25 ++++++++++++++++++++-----
+ 1 file changed, 20 insertions(+), 5 deletions(-)
+
+--- a/drivers/media/pci/saa7134/saa7134-video.c
++++ b/drivers/media/pci/saa7134/saa7134-video.c
+@@ -2119,8 +2119,10 @@ int saa7134_video_init1(struct saa7134_d
+ q->dev = &dev->pci->dev;
+ ret = vb2_queue_init(q);
+ if (ret)
+- return ret;
+- saa7134_pgtable_alloc(dev->pci, &dev->video_q.pt);
++ goto err_free_ctrl;
++ ret = saa7134_pgtable_alloc(dev->pci, &dev->video_q.pt);
++ if (ret)
++ goto err_free_ctrl;
+
+ q = &dev->vbi_vbq;
+ q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
+@@ -2137,11 +2139,24 @@ int saa7134_video_init1(struct saa7134_d
+ q->lock = &dev->lock;
+ q->dev = &dev->pci->dev;
+ ret = vb2_queue_init(q);
+- if (ret)
+- return ret;
+- saa7134_pgtable_alloc(dev->pci, &dev->vbi_q.pt);
++ if (ret) {
++ saa7134_pgtable_free(dev->pci, &dev->video_q.pt);
++ goto err_free_ctrl;
++ }
++
++ ret = saa7134_pgtable_alloc(dev->pci, &dev->vbi_q.pt);
++ if (ret) {
++ saa7134_pgtable_free(dev->pci, &dev->video_q.pt);
++ goto err_free_ctrl;
++ }
+
+ return 0;
++
++err_free_ctrl:
++ v4l2_ctrl_handler_free(&dev->ctrl_handler);
++ if (card_has_radio(dev))
++ v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
++ return ret;
+ }
+
+ void saa7134_video_fini(struct saa7134_dev *dev)
--- /dev/null
+From 084973ebd67b28f0945c5d45408f86c58b540110 Mon Sep 17 00:00:00 2001
+From: Myeonghun Pak <mhun512@gmail.com>
+Date: Sun, 26 Apr 2026 21:43:49 +0900
+Subject: media: stm32: dcmi: unregister notifier on probe failure
+
+From: Myeonghun Pak <mhun512@gmail.com>
+
+commit 084973ebd67b28f0945c5d45408f86c58b540110 upstream.
+
+dcmi_graph_init() registers the async notifier before dcmi_probe() toggles
+the reset line. If reset_control_assert() or reset_control_deassert()
+fails afterwards, probe returns through err_cleanup and the driver core
+will not call dcmi_remove().
+
+Unregister the notifier before cleaning it up on that error path,
+matching the successful remove path and the V4L2 async notifier lifetime
+rules.
+
+Signed-off-by: Myeonghun Pak <mhun512@gmail.com>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Fixes: d079f94c9046 ("media: platform: Switch to v4l2_async_notifier_add_subdev")
+Cc: stable@vger.kernel.org
+[hverkuil: added Fixes tag]
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/platform/st/stm32/stm32-dcmi.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/media/platform/st/stm32/stm32-dcmi.c
++++ b/drivers/media/platform/st/stm32/stm32-dcmi.c
+@@ -2122,6 +2122,7 @@ static int dcmi_probe(struct platform_de
+ return 0;
+
+ err_cleanup:
++ v4l2_async_nf_unregister(&dcmi->notifier);
+ v4l2_async_nf_cleanup(&dcmi->notifier);
+ err_media_entity_cleanup:
+ media_entity_cleanup(&dcmi->vdev->entity);
--- /dev/null
+From bbba3e260a62810a717b4442a3bb96d0ec0f6309 Mon Sep 17 00:00:00 2001
+From: Valery Borovsky <vebohr@gmail.com>
+Date: Mon, 11 May 2026 20:12:11 +0300
+Subject: media: sun4i-csi: Return queued buffers on start_streaming() failure
+
+From: Valery Borovsky <vebohr@gmail.com>
+
+commit bbba3e260a62810a717b4442a3bb96d0ec0f6309 upstream.
+
+The vb2 framework hands buffers to the driver via buf_queue() before
+calling start_streaming(). If start_streaming() returns an error
+without first returning those buffers via vb2_buffer_done(),
+vb2_start_streaming() fires WARN_ON(owned_by_drv_count) and the queued
+buffers leak.
+
+sun4i_csi_start_streaming() returned -EINVAL when no matching CSI
+format could be found, before any setup (scratch buffer allocation,
+pipeline start) had been performed. The remaining error paths already
+converge on the err_clear_dma_queue label, which calls
+return_all_buffers(..., VB2_BUF_STATE_QUEUED) under csi->qlock. Jump
+to that label directly: the intermediate err_disable_device /
+err_disable_pipeline / err_free_scratch_buffer labels are skipped,
+which is correct because nothing they would undo has happened yet.
+
+This mirrors the uvcvideo fix in commit 4cf3b6fd54eb ("media: uvcvideo:
+Return queued buffers on start_streaming() failure").
+
+Fixes: 577bbf23b758 ("media: sunxi: Add A10 CSI driver")
+Cc: stable@vger.kernel.org
+Signed-off-by: Valery Borovsky <vebohr@gmail.com>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/platform/sunxi/sun4i-csi/sun4i_dma.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+--- a/drivers/media/platform/sunxi/sun4i-csi/sun4i_dma.c
++++ b/drivers/media/platform/sunxi/sun4i-csi/sun4i_dma.c
+@@ -234,8 +234,10 @@ static int sun4i_csi_start_streaming(str
+ int ret;
+
+ csi_fmt = sun4i_csi_find_format(&csi->fmt.pixelformat, NULL);
+- if (!csi_fmt)
+- return -EINVAL;
++ if (!csi_fmt) {
++ ret = -EINVAL;
++ goto err_clear_dma_queue;
++ }
+
+ dev_dbg(csi->dev, "Starting capture\n");
+
--- /dev/null
+From d5b50055338e131a1a99f923ebb0361974a00f36 Mon Sep 17 00:00:00 2001
+From: Hungyu Lin <dennylin0707@gmail.com>
+Date: Thu, 7 May 2026 02:22:13 +0000
+Subject: media: tegra-video: vi: fix invalid u32 return value in format lookup
+
+From: Hungyu Lin <dennylin0707@gmail.com>
+
+commit d5b50055338e131a1a99f923ebb0361974a00f36 upstream.
+
+tegra_get_format_fourcc_by_idx() returns a u32 but uses -EINVAL to
+signal an out-of-bounds index. This results in a large unsigned
+value being returned, which may be interpreted as a valid fourcc.
+
+Returning 0 is not a valid fourcc either. This condition should
+never happen, so use WARN_ON_ONCE() to catch unexpected out-of-bounds
+access and return a valid fallback format instead.
+
+Suggested-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Fixes: 3d8a97eabef0 ("media: tegra-video: Add Tegra210 Video input driver")
+Cc: stable@vger.kernel.org
+Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
+Signed-off-by: Hungyu Lin <dennylin0707@gmail.com>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/staging/media/tegra-video/vi.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/media/tegra-video/vi.c
++++ b/drivers/staging/media/tegra-video/vi.c
+@@ -76,8 +76,8 @@ static int tegra_get_format_idx_by_code(
+ static u32 tegra_get_format_fourcc_by_idx(struct tegra_vi *vi,
+ unsigned int index)
+ {
+- if (index >= vi->soc->nformats)
+- return -EINVAL;
++ if (WARN_ON_ONCE(index >= vi->soc->nformats))
++ return vi->soc->video_formats[0].fourcc;
+
+ return vi->soc->video_formats[index].fourcc;
+ }
--- /dev/null
+From e0f1c9a90ef665f2587c274a8fed59f2dfc575a6 Mon Sep 17 00:00:00 2001
+From: Myeonghun Pak <mhun512@gmail.com>
+Date: Sun, 26 Apr 2026 22:16:31 +0900
+Subject: media: ti: vpe: unwind v4l2 device registration on probe error
+
+From: Myeonghun Pak <mhun512@gmail.com>
+
+commit e0f1c9a90ef665f2587c274a8fed59f2dfc575a6 upstream.
+
+If the vpe_top resource is missing, vpe_probe() returns -ENODEV after
+v4l2_device_register() has succeeded. Probe failures do not call the
+driver's remove callback, so the v4l2 device remains registered on that
+error path.
+
+Route that failure through the existing v4l2_device_unregister() unwind
+label, matching the other errors after v4l2_device_register().
+
+Fixes: 4d59c7d45585 ("media: ti-vpe: vpe: Add missing null pointer checks")
+Cc: stable@vger.kernel.org
+Co-developed-by: Ijae Kim <ae878000@gmail.com>
+Signed-off-by: Ijae Kim <ae878000@gmail.com>
+Signed-off-by: Myeonghun Pak <mhun512@gmail.com>
+Reviewed-by: Yemike Abhilash Chandra <y-abhilashchandra@ti.com>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/platform/ti/vpe/vpe.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/platform/ti/vpe/vpe.c
++++ b/drivers/media/platform/ti/vpe/vpe.c
+@@ -2545,7 +2545,8 @@ static int vpe_probe(struct platform_dev
+ "vpe_top");
+ if (!dev->res) {
+ dev_err(&pdev->dev, "missing 'vpe_top' resources data\n");
+- return -ENODEV;
++ ret = -ENODEV;
++ goto v4l2_dev_unreg;
+ }
+
+ /*
--- /dev/null
+From caced3578bf9f104a4aaad8f46c4c719e705d9a6 Mon Sep 17 00:00:00 2001
+From: Sergey Shtylyov <s.shtylyov@auroraos.dev>
+Date: Fri, 1 May 2026 23:28:31 +0300
+Subject: media: v4l2-ctrls-request: add NULL check in v4l2_ctrl_request_complete()
+
+From: Sergey Shtylyov <s.shtylyov@auroraos.dev>
+
+commit caced3578bf9f104a4aaad8f46c4c719e705d9a6 upstream.
+
+If CONFIG_MEDIA_CONTROLLER is undefined, media_request_object_find() will
+always return NULL, so its 2nd call in v4l2_ctrl_request_complete() would
+fail as well as the 1st one and thus cause hdl to have a wrong value (at
+the top of memory) and list_for_each_entry() to iterate over the garbage
+data located there. Add NULL check for the 2nd call and place the error
+cleanup at the end of v4l2_ctrl_request_complete()...
+
+Found by Linux Verification Center (linuxtesting.org) with the Svace static
+analysis tool.
+
+Fixes: c3bf5129f339 ("media: v4l2-ctrls: always copy the controls on completion")
+Cc: stable@vger.kernel.org
+Signed-off-by: Sergey Shtylyov <s.shtylyov@auroraos.dev>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/v4l2-core/v4l2-ctrls-request.c | 14 +++++++++-----
+ 1 file changed, 9 insertions(+), 5 deletions(-)
+
+--- a/drivers/media/v4l2-core/v4l2-ctrls-request.c
++++ b/drivers/media/v4l2-core/v4l2-ctrls-request.c
+@@ -348,13 +348,12 @@ void v4l2_ctrl_request_complete(struct m
+ ret = v4l2_ctrl_handler_init(hdl, (main_hdl->nr_of_buckets - 1) * 8);
+ if (!ret)
+ ret = v4l2_ctrl_request_bind(req, hdl, main_hdl);
+- if (ret) {
+- v4l2_ctrl_handler_free(hdl);
+- kfree(hdl);
+- return;
+- }
++ if (ret)
++ goto error;
+ hdl->request_is_queued = true;
+ obj = media_request_object_find(req, &req_ops, main_hdl);
++ if (!obj)
++ goto error;
+ }
+ hdl = container_of(obj, struct v4l2_ctrl_handler, req_obj);
+
+@@ -389,6 +388,11 @@ void v4l2_ctrl_request_complete(struct m
+ mutex_unlock(main_hdl->lock);
+ media_request_object_complete(obj);
+ media_request_object_put(obj);
++ return;
++
++error:
++ v4l2_ctrl_handler_free(hdl);
++ kfree(hdl);
+ }
+ EXPORT_SYMBOL(v4l2_ctrl_request_complete);
+
--- /dev/null
+From afbe4bc252d90a6f8fad869b06d5430f615f22f9 Mon Sep 17 00:00:00 2001
+From: Pengpeng Hou <pengpeng@iscas.ac.cn>
+Date: Tue, 24 Mar 2026 11:13:26 +0800
+Subject: media: v4l2-ctrls: validate HEVC active reference counts
+
+From: Pengpeng Hou <pengpeng@iscas.ac.cn>
+
+commit afbe4bc252d90a6f8fad869b06d5430f615f22f9 upstream.
+
+HEVC slice parameters are shared stateless V4L2 controls, but the common
+validation path does not verify the active L0/L1 reference counts before
+driver-specific code consumes them.
+
+The original report came from Cedrus, but the active count bounds are
+not Cedrus-specific. Validate them in the common HEVC slice control path
+so stateless HEVC drivers get the same basic guarantees as soon as the
+control is queued.
+
+Do not reject ref_idx_l0/ref_idx_l1 entries here. Existing userspace may
+use out-of-range sentinel values such as 0xff for missing references, and
+some hardware can use that information for concealment. Keep this common
+check limited to the active reference counts.
+
+Fixes: d395a78db9eab ("media: hevc: Add decode params control")
+Cc: stable@vger.kernel.org
+Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
+Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
+Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/v4l2-core/v4l2-ctrls-core.c | 13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+--- a/drivers/media/v4l2-core/v4l2-ctrls-core.c
++++ b/drivers/media/v4l2-core/v4l2-ctrls-core.c
+@@ -566,6 +566,7 @@ static int std_validate_compound(const s
+ struct v4l2_ctrl_h264_decode_params *p_h264_dec_params;
+ struct v4l2_ctrl_hevc_sps *p_hevc_sps;
+ struct v4l2_ctrl_hevc_pps *p_hevc_pps;
++ struct v4l2_ctrl_hevc_slice_params *p_hevc_slice_params;
+ struct v4l2_ctrl_hdr10_mastering_display *p_hdr10_mastering;
+ struct v4l2_ctrl_hevc_decode_params *p_hevc_decode_params;
+ struct v4l2_area *area;
+@@ -854,6 +855,18 @@ static int std_validate_compound(const s
+ break;
+
+ case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS:
++ p_hevc_slice_params = p;
++
++ if (p_hevc_slice_params->num_ref_idx_l0_active_minus1 >=
++ V4L2_HEVC_DPB_ENTRIES_NUM_MAX)
++ return -EINVAL;
++
++ if (p_hevc_slice_params->slice_type != V4L2_HEVC_SLICE_TYPE_B)
++ break;
++
++ if (p_hevc_slice_params->num_ref_idx_l1_active_minus1 >=
++ V4L2_HEVC_DPB_ENTRIES_NUM_MAX)
++ return -EINVAL;
+ break;
+
+ case V4L2_CTRL_TYPE_HDR10_CLL_INFO:
--- /dev/null
+From a562d6dc86bdfdd299e1b4734977a8d63e803583 Mon Sep 17 00:00:00 2001
+From: Zile Xiong <xiongzile99@gmail.com>
+Date: Fri, 20 Mar 2026 14:54:45 +0800
+Subject: media: vb2: use ssize_t for vb2_read/vb2_write
+
+From: Zile Xiong <xiongzile99@gmail.com>
+
+commit a562d6dc86bdfdd299e1b4734977a8d63e803583 upstream.
+
+vb2_read() and vb2_write() return size_t, but propagate
+negative errno values from __vb2_perform_fileio().
+
+This relies on implicit signed/unsigned conversions in callers
+(e.g. vb2_fop_read()) to recover error codes:
+
+ __vb2_perform_fileio() -> -EINVAL
+ vb2_read() -> (size_t)-EINVAL
+ vb2_fop_read() -> -EINVAL
+
+This relies on implicit conversions that are not obvious.
+
+These helpers are exported (EXPORT_SYMBOL_GPL) and part of the
+vb2 API, so changing their return type may affect existing users.
+
+However, they conceptually follow read/write semantics, where
+ssize_t is typically used to return either a byte count or a
+negative error code.
+
+Switch vb2_read() and vb2_write() to ssize_t, and update
+__vb2_perform_fileio() accordingly.
+
+Signed-off-by: Zile Xiong <xiongzile99@gmail.com>
+Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
+Fixes: b25748fe6126 ("[media] v4l: videobuf2: add read() and write() emulator")
+Cc: stable@vger.kernel.org
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/common/videobuf2/videobuf2-core.c | 12 ++++++------
+ include/media/videobuf2-core.h | 8 ++++----
+ 2 files changed, 10 insertions(+), 10 deletions(-)
+
+--- a/drivers/media/common/videobuf2/videobuf2-core.c
++++ b/drivers/media/common/videobuf2/videobuf2-core.c
+@@ -2770,8 +2770,8 @@ static int __vb2_cleanup_fileio(struct v
+ * @nonblock: mode selector (1 means blocking calls, 0 means nonblocking)
+ * @read: access mode selector (1 means read, 0 means write)
+ */
+-static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_t count,
+- loff_t *ppos, int nonblock, int read)
++static ssize_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_t count,
++ loff_t *ppos, int nonblock, int read)
+ {
+ struct vb2_fileio_data *fileio;
+ struct vb2_fileio_buf *buf;
+@@ -2931,15 +2931,15 @@ static size_t __vb2_perform_fileio(struc
+ return ret;
+ }
+
+-size_t vb2_read(struct vb2_queue *q, char __user *data, size_t count,
+- loff_t *ppos, int nonblocking)
++ssize_t vb2_read(struct vb2_queue *q, char __user *data, size_t count,
++ loff_t *ppos, int nonblocking)
+ {
+ return __vb2_perform_fileio(q, data, count, ppos, nonblocking, 1);
+ }
+ EXPORT_SYMBOL_GPL(vb2_read);
+
+-size_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count,
+- loff_t *ppos, int nonblocking)
++ssize_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count,
++ loff_t *ppos, int nonblocking)
+ {
+ return __vb2_perform_fileio(q, (char __user *) data, count,
+ ppos, nonblocking, 0);
+--- a/include/media/videobuf2-core.h
++++ b/include/media/videobuf2-core.h
+@@ -1050,8 +1050,8 @@ __poll_t vb2_core_poll(struct vb2_queue
+ * @ppos: file handle position tracking pointer
+ * @nonblock: mode selector (1 means blocking calls, 0 means nonblocking)
+ */
+-size_t vb2_read(struct vb2_queue *q, char __user *data, size_t count,
+- loff_t *ppos, int nonblock);
++ssize_t vb2_read(struct vb2_queue *q, char __user *data, size_t count,
++ loff_t *ppos, int nonblock);
+ /**
+ * vb2_write() - implements write() syscall logic.
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+@@ -1060,8 +1060,8 @@ size_t vb2_read(struct vb2_queue *q, cha
+ * @ppos: file handle position tracking pointer
+ * @nonblock: mode selector (1 means blocking calls, 0 means nonblocking)
+ */
+-size_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count,
+- loff_t *ppos, int nonblock);
++ssize_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count,
++ loff_t *ppos, int nonblock);
+
+ /**
+ * typedef vb2_thread_fnc - callback function for use with vb2_thread.
--- /dev/null
+From 9aa21e1549db8882ff77b691e7714153df21dff0 Mon Sep 17 00:00:00 2001
+From: Guangshuo Li <lgs201920130244@gmail.com>
+Date: Wed, 15 Apr 2026 23:28:26 +0800
+Subject: media: vidtv: fix reference leak on failed device registration
+
+From: Guangshuo Li <lgs201920130244@gmail.com>
+
+commit 9aa21e1549db8882ff77b691e7714153df21dff0 upstream.
+
+When platform_device_register() fails in vidtv_bridge_init(), the
+embedded struct device in vidtv_bridge_dev has already been initialized
+by device_initialize(), but the failure path returns the error without
+dropping the device reference for the current platform device:
+
+ vidtv_bridge_init()
+ -> platform_device_register(&vidtv_bridge_dev)
+ -> device_initialize(&vidtv_bridge_dev.dev)
+ -> setup_pdev_dma_masks(&vidtv_bridge_dev)
+ -> platform_device_add(&vidtv_bridge_dev)
+
+This leads to a reference leak when platform_device_register() fails.
+Fix this by calling platform_device_put() before returning the error.
+
+The issue was identified by a static analysis tool I developed and
+confirmed by manual review.
+
+Fixes: f90cf6079bf67 ("media: vidtv: add a bridge driver")
+Cc: stable@vger.kernel.org
+Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/test-drivers/vidtv/vidtv_bridge.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/media/test-drivers/vidtv/vidtv_bridge.c
++++ b/drivers/media/test-drivers/vidtv/vidtv_bridge.c
+@@ -596,8 +596,10 @@ static int __init vidtv_bridge_init(void
+ int ret;
+
+ ret = platform_device_register(&vidtv_bridge_dev);
+- if (ret)
++ if (ret) {
++ platform_device_put(&vidtv_bridge_dev);
+ return ret;
++ }
+
+ ret = platform_driver_register(&vidtv_bridge_driver);
+ if (ret)
--- /dev/null
+From 33e2b833c66b890a0d71c4fa82d4c97143f7f75f Mon Sep 17 00:00:00 2001
+From: Guangshuo Li <lgs201920130244@gmail.com>
+Date: Wed, 15 Apr 2026 23:45:37 +0800
+Subject: media: vimc: fix reference leak on failed device registration
+
+From: Guangshuo Li <lgs201920130244@gmail.com>
+
+commit 33e2b833c66b890a0d71c4fa82d4c97143f7f75f upstream.
+
+When platform_device_register() fails in vimc_init(), the embedded
+struct device in vimc_pdev has already been initialized by
+device_initialize(), but the failure path returns the error without
+dropping the device reference for the current platform device:
+
+ vimc_init()
+ -> platform_device_register(&vimc_pdev)
+ -> device_initialize(&vimc_pdev.dev)
+ -> setup_pdev_dma_masks(&vimc_pdev)
+ -> platform_device_add(&vimc_pdev)
+
+This leads to a reference leak when platform_device_register() fails.
+Fix this by calling platform_device_put() before returning the error.
+
+The issue was identified by a static analysis tool I developed and
+confirmed by manual review.
+
+Fixes: 4babf057c143f ("media: vimc: allocate vimc_device dynamically")
+Cc: stable@vger.kernel.org
+Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/test-drivers/vimc/vimc-core.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/media/test-drivers/vimc/vimc-core.c
++++ b/drivers/media/test-drivers/vimc/vimc-core.c
+@@ -426,6 +426,7 @@ static int __init vimc_init(void)
+ if (ret) {
+ dev_err(&vimc_pdev.dev,
+ "platform device registration failed (err=%d)\n", ret);
++ platform_device_put(&vimc_pdev);
+ return ret;
+ }
+
--- /dev/null
+From 1d793a29efb4260f90913f5287939bf95573b073 Mon Sep 17 00:00:00 2001
+From: Hans Verkuil <hverkuil+cisco@kernel.org>
+Date: Wed, 20 May 2026 09:30:44 +0200
+Subject: media: vivid: add vivid_update_reduced_fps()
+
+From: Hans Verkuil <hverkuil+cisco@kernel.org>
+
+commit 1d793a29efb4260f90913f5287939bf95573b073 upstream.
+
+Don't call vivid_update_format_cap() when switching to/from reduced fps
+for HDMI inputs: that will also reset the format, which is overkill for
+this.
+
+Make a new vivid_update_reduced_fps() function that just updates the
+dev->timeperframe_vid_cap.
+
+Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
+Fixes: c79aa6aeadb0 ("[media] vivid-capture: add control for reduced frame rate")
+Cc: stable@vger.kernel.org
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/test-drivers/vivid/vivid-ctrls.c | 3 +-
+ drivers/media/test-drivers/vivid/vivid-vid-cap.c | 32 +++++++++++++----------
+ drivers/media/test-drivers/vivid/vivid-vid-cap.h | 1
+ 3 files changed, 22 insertions(+), 14 deletions(-)
+
+--- a/drivers/media/test-drivers/vivid/vivid-ctrls.c
++++ b/drivers/media/test-drivers/vivid/vivid-ctrls.c
+@@ -516,7 +516,8 @@ static int vivid_vid_cap_s_ctrl(struct v
+ break;
+ case VIVID_CID_REDUCED_FPS:
+ dev->reduced_fps = ctrl->val;
+- vivid_update_format_cap(dev, true);
++ if (dev->input_type[dev->input] == HDMI)
++ vivid_update_reduced_fps(dev);
+ break;
+ case VIVID_CID_HAS_CROP_CAP:
+ dev->has_crop_cap = ctrl->val;
+--- a/drivers/media/test-drivers/vivid/vivid-vid-cap.c
++++ b/drivers/media/test-drivers/vivid/vivid-vid-cap.c
+@@ -375,6 +375,24 @@ static enum tpg_pixel_aspect vivid_get_p
+ return TPG_PIXEL_ASPECT_SQUARE;
+ }
+
++void vivid_update_reduced_fps(struct vivid_dev *dev)
++{
++ struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt;
++ unsigned int size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
++ u64 pixelclock;
++
++ if (dev->reduced_fps && can_reduce_fps(bt)) {
++ pixelclock = div_u64(bt->pixelclock * 1000, 1001);
++ bt->flags |= V4L2_DV_FL_REDUCED_FPS;
++ } else {
++ pixelclock = bt->pixelclock;
++ bt->flags &= ~V4L2_DV_FL_REDUCED_FPS;
++ }
++ dev->timeperframe_vid_cap = (struct v4l2_fract) {
++ size / 100, (u32)pixelclock / 100
++ };
++}
++
+ /*
+ * Called whenever the format has to be reset which can occur when
+ * changing inputs, standard, timings, etc.
+@@ -383,8 +401,6 @@ void vivid_update_format_cap(struct vivi
+ {
+ struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt;
+ u32 dims[V4L2_CTRL_MAX_DIMS] = {};
+- unsigned size;
+- u64 pixelclock;
+
+ switch (dev->input_type[dev->input]) {
+ case WEBCAM:
+@@ -413,17 +429,7 @@ void vivid_update_format_cap(struct vivi
+ case HDMI:
+ dev->src_rect.width = bt->width;
+ dev->src_rect.height = bt->height;
+- size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
+- if (dev->reduced_fps && can_reduce_fps(bt)) {
+- pixelclock = div_u64(bt->pixelclock * 1000, 1001);
+- bt->flags |= V4L2_DV_FL_REDUCED_FPS;
+- } else {
+- pixelclock = bt->pixelclock;
+- bt->flags &= ~V4L2_DV_FL_REDUCED_FPS;
+- }
+- dev->timeperframe_vid_cap = (struct v4l2_fract) {
+- size / 100, (u32)pixelclock / 100
+- };
++ vivid_update_reduced_fps(dev);
+ if (bt->interlaced)
+ dev->field_cap = V4L2_FIELD_ALTERNATE;
+ else
+--- a/drivers/media/test-drivers/vivid/vivid-vid-cap.h
++++ b/drivers/media/test-drivers/vivid/vivid-vid-cap.h
+@@ -9,6 +9,7 @@
+ #define _VIVID_VID_CAP_H_
+
+ void vivid_update_quality(struct vivid_dev *dev);
++void vivid_update_reduced_fps(struct vivid_dev *dev);
+ void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls);
+ enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev);
+
--- /dev/null
+From c2d1a2130c93f6d758af58590b86b2254c7a1dec Mon Sep 17 00:00:00 2001
+From: Hans Verkuil <hverkuil+cisco@kernel.org>
+Date: Wed, 20 May 2026 09:22:41 +0200
+Subject: media: vivid: check for vb2_is_busy() when toggling caps
+
+From: Hans Verkuil <hverkuil+cisco@kernel.org>
+
+commit c2d1a2130c93f6d758af58590b86b2254c7a1dec upstream.
+
+The vivid_update_format_cap/out() functions must only be called if the
+capture/output queue are not busy. But for the controls that select
+the CROP/COMPOSE/SCALE capability that is not checked.
+
+Only when streaming starts will they be set to 'grabbed' and it is
+impossible to change the control, but between REQBUFS and STREAMON you
+are still allowed to set these controls. Since vivid_update_format_cap/out
+will change the format, this can cause unexpected results.
+
+Besides adding these checks, also add a WARN_ON in
+vivid_update_format_cap/out() if the queue is busy.
+
+I'm 90% certain that this is the cause of this syzbot bug:
+
+https://syzkaller.appspot.com/bug?extid=dac8f5eaa46837e97b89
+
+But since we never have reproducers, it is hard to be certain. In any case,
+these checks are needed regardless.
+
+Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
+Fixes: 73c3f48230cd ("[media] vivid: add the control handling code")
+Cc: stable@vger.kernel.org
+Reported-by: syzbot+dac8f5eaa46837e97b89@syzkaller.appspotmail.com
+Closes: https://syzkaller.appspot.com/bug?extid=dac8f5eaa46837e97b89
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/test-drivers/vivid/vivid-ctrls.c | 12 ++++++++++++
+ drivers/media/test-drivers/vivid/vivid-vid-cap.c | 6 ++++++
+ drivers/media/test-drivers/vivid/vivid-vid-out.c | 6 ++++++
+ 3 files changed, 24 insertions(+)
+
+--- a/drivers/media/test-drivers/vivid/vivid-ctrls.c
++++ b/drivers/media/test-drivers/vivid/vivid-ctrls.c
+@@ -520,14 +520,20 @@ static int vivid_vid_cap_s_ctrl(struct v
+ vivid_update_reduced_fps(dev);
+ break;
+ case VIVID_CID_HAS_CROP_CAP:
++ if (vb2_is_busy(&dev->vb_vid_cap_q))
++ return -EBUSY;
+ dev->has_crop_cap = ctrl->val;
+ vivid_update_format_cap(dev, true);
+ break;
+ case VIVID_CID_HAS_COMPOSE_CAP:
++ if (vb2_is_busy(&dev->vb_vid_cap_q))
++ return -EBUSY;
+ dev->has_compose_cap = ctrl->val;
+ vivid_update_format_cap(dev, true);
+ break;
+ case VIVID_CID_HAS_SCALER_CAP:
++ if (vb2_is_busy(&dev->vb_vid_cap_q))
++ return -EBUSY;
+ dev->has_scaler_cap = ctrl->val;
+ vivid_update_format_cap(dev, true);
+ break;
+@@ -1012,14 +1018,20 @@ static int vivid_vid_out_s_ctrl(struct v
+
+ switch (ctrl->id) {
+ case VIVID_CID_HAS_CROP_OUT:
++ if (vb2_is_busy(&dev->vb_vid_out_q))
++ return -EBUSY;
+ dev->has_crop_out = ctrl->val;
+ vivid_update_format_out(dev);
+ break;
+ case VIVID_CID_HAS_COMPOSE_OUT:
++ if (vb2_is_busy(&dev->vb_vid_out_q))
++ return -EBUSY;
+ dev->has_compose_out = ctrl->val;
+ vivid_update_format_out(dev);
+ break;
+ case VIVID_CID_HAS_SCALER_OUT:
++ if (vb2_is_busy(&dev->vb_vid_out_q))
++ return -EBUSY;
+ dev->has_scaler_out = ctrl->val;
+ vivid_update_format_out(dev);
+ break;
+--- a/drivers/media/test-drivers/vivid/vivid-vid-cap.c
++++ b/drivers/media/test-drivers/vivid/vivid-vid-cap.c
+@@ -402,6 +402,12 @@ void vivid_update_format_cap(struct vivi
+ struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt;
+ u32 dims[V4L2_CTRL_MAX_DIMS] = {};
+
++ /*
++ * This resets the format, so must never be called while vb2_is_busy().
++ */
++ if (WARN_ON(vb2_is_busy(&dev->vb_vid_cap_q)))
++ return;
++
+ switch (dev->input_type[dev->input]) {
+ case WEBCAM:
+ default:
+--- a/drivers/media/test-drivers/vivid/vivid-vid-out.c
++++ b/drivers/media/test-drivers/vivid/vivid-vid-out.c
+@@ -222,6 +222,12 @@ void vivid_update_format_out(struct vivi
+ unsigned size, p;
+ u64 pixelclock;
+
++ /*
++ * This resets the format, so must never be called while vb2_is_busy().
++ */
++ if (WARN_ON(vb2_is_busy(&dev->vb_vid_out_q)))
++ return;
++
+ switch (dev->output_type[dev->output]) {
+ case SVID:
+ default:
--- /dev/null
+From 2282f979560af6bbc8ee2c1ee8663197312cee5b Mon Sep 17 00:00:00 2001
+From: Johan Hovold <johan@kernel.org>
+Date: Tue, 7 Apr 2026 12:08:31 +0200
+Subject: media: vpif_capture: fix OF node reference imbalance
+
+From: Johan Hovold <johan@kernel.org>
+
+commit 2282f979560af6bbc8ee2c1ee8663197312cee5b upstream.
+
+The driver reuses the OF node of the parent device but fails to take
+another reference to balance the one dropped by the platform bus code
+when unbinding the parent and releasing the child devices.
+
+Fix this by using the intended helper for reusing OF nodes.
+
+Fixes: 4a5f8ae50b66 ("[media] davinci: vpif_capture: get subdevs from DT when available")
+Cc: stable@vger.kernel.org # 4.13
+Cc: Kevin Hilman <khilman@baylibre.com>
+Signed-off-by: Johan Hovold <johan@kernel.org>
+Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/platform/ti/davinci/vpif_capture.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/platform/ti/davinci/vpif_capture.c
++++ b/drivers/media/platform/ti/davinci/vpif_capture.c
+@@ -1499,7 +1499,7 @@ vpif_capture_get_pdata(struct platform_d
+ * video ports & endpoints data.
+ */
+ if (pdev->dev.parent && pdev->dev.parent->of_node)
+- pdev->dev.of_node = pdev->dev.parent->of_node;
++ device_set_of_node_from_dev(&pdev->dev, pdev->dev.parent);
+ if (!IS_ENABLED(CONFIG_OF) || !pdev->dev.of_node)
+ return pdev->dev.platform_data;
+
--- /dev/null
+From 91a70492c03040d51b36f595530d6491d5d6c541 Mon Sep 17 00:00:00 2001
+From: Zixing Liu <liushuyu@aosc.io>
+Date: Fri, 24 Jul 2026 16:33:14 +0800
+Subject: platform/loongarch: laptop: Explicitly reset bl_powered state when suspend
+
+From: Zixing Liu <liushuyu@aosc.io>
+
+commit 91a70492c03040d51b36f595530d6491d5d6c541 upstream.
+
+On EAECIS NL60R with EC firmware version 1.11, resuming from S3 has a
+very high chance (>90%) of causing the EC to lose the previous backlight
+power state. When this happens, the laptop resumes normally from S3, but
+the backlight remains off (when shining on the screen with a flash light,
+we can see the screen contents are updating normally).
+
+Since there is no generic way to query the EC's backlight state on
+Loongson laptop platforms, assume the worst-case scenario and restart
+the backlight power inside the kernel each time the system resumes.
+
+Cc: stable@vger.kernel.org
+Fixes: 53c762b47f72 ("platform/loongarch: laptop: Add backlight power control support")
+Tested-by: Yao Zi <me@ziyao.cc>
+Tested-by: Xi Ruoyao <xry111@xry111.site>
+Signed-off-by: Zixing Liu <liushuyu@aosc.io>
+Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/platform/loongarch/loongson-laptop.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/platform/loongarch/loongson-laptop.c
++++ b/drivers/platform/loongarch/loongson-laptop.c
+@@ -189,6 +189,7 @@ static int __init setup_acpi_notify(stru
+
+ static int loongson_hotkey_suspend(struct device *dev)
+ {
++ bl_powered = false;
+ return 0;
+ }
+
media-marvell-cam-fix-missing-pci_disable_device-on-remove.patch
media-meson-vdec-fix-memory-leak-in-error-path-of-vdec_open.patch
media-msi2500-return-queued-buffers-on-start_streaming-failure.patch
+media-pci-dm1105-free-allocated-workqueue.patch
+media-pwc-drain-fill_buf-on-start_streaming-failure.patch
+media-pwc-return-queued-buffers-on-start_streaming-failure.patch
+media-radio-si476x-unregister-v4l2_device-on-probe-failure.patch
+media-rtl2832-fix-use-after-free-in-rtl2832_remove.patch
+media-rtl2832_sdr-return-queued-buffers-on-start_streaming-failure.patch
+media-saa7134-fix-a-possible-memory-leak-in-saa7134_video_init1.patch
+media-stm32-dcmi-unregister-notifier-on-probe-failure.patch
+media-sun4i-csi-return-queued-buffers-on-start_streaming-failure.patch
+media-tegra-video-vi-fix-invalid-u32-return-value-in-format-lookup.patch
+media-ti-vpe-unwind-v4l2-device-registration-on-probe-error.patch
+media-v4l2-ctrls-request-add-null-check-in-v4l2_ctrl_request_complete.patch
+media-v4l2-ctrls-validate-hevc-active-reference-counts.patch
+media-vb2-use-ssize_t-for-vb2_read-vb2_write.patch
+media-vidtv-fix-reference-leak-on-failed-device-registration.patch
+media-vimc-fix-reference-leak-on-failed-device-registration.patch
+media-vivid-add-vivid_update_reduced_fps.patch
+media-vivid-check-for-vb2_is_busy-when-toggling-caps.patch
+media-vpif_capture-fix-of-node-reference-imbalance.patch
+alsa-seq-close-a-re-opened-queue-timer-in-the-destructor.patch
+wifi-ath6kl-fix-oob-access-from-firmware-addba-window-size.patch
+wifi-mwifiex-fix-null-dereference-when-the-ap-has-ht-cap-but-no-ht-oper.patch
+wifi-wilc1000-validate-assoc-response-length-before-subtracting-header.patch
+wifi-mt76-mt7615-drop-txrx_notify-on-non-mmio-buses.patch
+wifi-mt76-mt7921-drop-txrx_notify-on-non-mmio-buses.patch
+wifi-brcmfmac-make-release_scratchbuffers-idempotent.patch
+staging-rtl8723bs-fix-oob-reads-in-rtw_get_wps_ie.patch
+staging-rtl8723bs-fix-inverted-ht40-secondary-channel-offset.patch
+bluetooth-hci_sync-protect-uuid-list-traversal.patch
+bluetooth-rfcomm-fix-session-uaf-in-set_termios.patch
+exec-fix-unsigned-loop-counter-wrap-in-transfer_args_to_stack.patch
+binfmt_misc-set-have_execfd-only-once-the-interpreter-is-opened.patch
+platform-loongarch-laptop-explicitly-reset-bl_powered-state-when-suspend.patch
--- /dev/null
+From 30d49cba27f8905bc288cef5846963f0004f644c Mon Sep 17 00:00:00 2001
+From: MinJea Kim <qndkdrnl@gmail.com>
+Date: Tue, 14 Jul 2026 22:14:21 +0900
+Subject: staging: rtl8723bs: fix inverted HT40 secondary channel offset
+
+From: MinJea Kim <qndkdrnl@gmail.com>
+
+commit 30d49cba27f8905bc288cef5846963f0004f644c upstream.
+
+rtw_get_chan_type() maps the driver's channel offset to nl80211 channel
+types the wrong way around.
+
+In this driver HAL_PRIME_CHNL_OFFSET_LOWER means the primary channel is
+the lower 20 MHz half of the 40 MHz pair, i.e. the secondary channel is
+above the primary one: rtw_get_center_ch() computes the center channel
+as "channel + 2" for OFFSET_LOWER, and bwmode_update_check() sets
+OFFSET_LOWER when the AP's HT operation IE announces SCA (secondary
+channel above). In nl80211 terms that is NL80211_CHAN_HT40PLUS, not
+HT40MINUS.
+
+Because of the inversion, cfg80211_rtw_get_channel() reports an HT40+
+association as HT40-. For an HT40+ AP on a low channel (e.g. channel 3)
+the resulting chandef spans below the 2.4 GHz band edge and is invalid,
+so the regulatory core tears the connection down 60 seconds
+(REG_ENFORCE_GRACE_MS) after the AP's country IE triggers a regdomain
+change: reg_check_chans_work() considers the reported chandef unusable
+and calls cfg80211_leave(). The supplicant then reconnects, the country
+IE changes the regdomain again, and the cycle repeats, causing a
+disconnect/reconnect loop every ~65 seconds for as long as the link is
+up.
+
+Observed on a TECLAST X80 Power tablet (RTL8723BS) associated to an
+HT40+ AP on channel 3 with a KR country IE; a kprobe trace showed
+cfg80211_disconnect() being invoked from reg_check_chans_work(). With
+the mapping fixed, "iw dev wlan0 info" reports the correct
+"width: 40 MHz, center1: 2432 MHz" and the periodic disconnects stop.
+
+Fixes: 5402cc178c5d ("staging: rtl8723bs: add get_channel cfg80211 implementation")
+Cc: stable@vger.kernel.org
+Assisted-by: Claude-Code:claude-fable-5 bpftrace
+Signed-off-by: MinJea Kim <qndkdrnl@gmail.com>
+Link: https://patch.msgid.link/20260714131421.3980-1-qndkdrnl@gmail.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
++++ b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
+@@ -1999,7 +1999,7 @@ static u8 rtw_get_chan_type(struct adapt
+ else
+ return NL80211_CHAN_NO_HT;
+ case CHANNEL_WIDTH_40:
+- if (mlme_ext->cur_ch_offset == HAL_PRIME_CHNL_OFFSET_UPPER)
++ if (mlme_ext->cur_ch_offset == HAL_PRIME_CHNL_OFFSET_LOWER)
+ return NL80211_CHAN_HT40PLUS;
+ else
+ return NL80211_CHAN_HT40MINUS;
--- /dev/null
+From 0e95ff792ae0aa6fbad9455943e9e1e4062670e9 Mon Sep 17 00:00:00 2001
+From: Moksh Panicker <mokshpanicker.7@gmail.com>
+Date: Thu, 25 Jun 2026 20:29:11 +0000
+Subject: staging: rtl8723bs: fix OOB reads in rtw_get_wps_ie()
+
+From: Moksh Panicker <mokshpanicker.7@gmail.com>
+
+commit 0e95ff792ae0aa6fbad9455943e9e1e4062670e9 upstream.
+
+rtw_get_wps_ie() iterates over IE data from network frames without
+validating that the IE header and payload fit within the remaining
+buffer before reading them. Specifically:
+
+- in_ie[cnt + 1] is read without checking cnt + 1 < in_len
+- memcmp(&in_ie[cnt + 2], ...) accesses cnt + 2 without bounds check
+- in_ie[cnt + 1] is used as length without verifying payload fits
+
+Add bounds checks at the top of the loop body to break early if fewer
+than 2 bytes remain for the IE header, or if the declared payload
+extends past the end of the buffer. Also require at least 4 bytes of
+payload before comparing the WPS OUI.
+
+Fixes: 554c0a3abf21 ("staging: Add rtl8723bs sdio wifi driver")
+Cc: stable <stable@kernel.org>
+Signed-off-by: Moksh Panicker <mokshpanicker.7@gmail.com>
+Link: https://patch.msgid.link/20260625202911.26782-1-mokshpanicker.7@gmail.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/staging/rtl8723bs/core/rtw_ieee80211.c | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/rtl8723bs/core/rtw_ieee80211.c
++++ b/drivers/staging/rtl8723bs/core/rtw_ieee80211.c
+@@ -678,7 +678,14 @@ u8 *rtw_get_wps_ie(u8 *in_ie, uint in_le
+ while (cnt < in_len) {
+ eid = in_ie[cnt];
+
+- if ((eid == WLAN_EID_VENDOR_SPECIFIC) && (!memcmp(&in_ie[cnt + 2], wps_oui, 4))) {
++ if (cnt + 2 > in_len)
++ break;
++
++ if (in_ie[cnt + 1] + 2 > in_len - cnt)
++ break;
++
++ if ((eid == WLAN_EID_VENDOR_SPECIFIC) && (in_ie[cnt + 1] >= 4) &&
++ (!memcmp(&in_ie[cnt + 2], wps_oui, 4))) {
+ wpsie_ptr = &in_ie[cnt];
+
+ if (wps_ie)
--- /dev/null
+From 44126b6994eeb28f2103b638e698f40a1244f327 Mon Sep 17 00:00:00 2001
+From: Tristan Madani <tristan@talencesecurity.com>
+Date: Thu, 2 Jul 2026 00:50:20 +0000
+Subject: wifi: ath6kl: fix OOB access from firmware ADDBA window size
+
+From: Tristan Madani <tristan@talencesecurity.com>
+
+commit 44126b6994eeb28f2103b638e698f40a1244f327 upstream.
+
+aggr_recv_addba_req_evt() logs a debug message when the firmware-supplied
+win_sz is outside [AGGR_WIN_SZ_MIN, AGGR_WIN_SZ_MAX] but does not
+return. The out-of-range win_sz is then used in TID_WINDOW_SZ() to
+compute a kzalloc size and stored in rxtid->hold_q_sz, leading to
+zero-size or overflowed allocations and subsequent out-of-bounds access.
+
+Clean up any previously active aggregation session for the TID first,
+then return early when win_sz is out of the valid range, instead of
+proceeding with a broken allocation size.
+
+Fixes: bdcd81707973 ("Add ath6kl cleaned up driver")
+Cc: stable@vger.kernel.org
+Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
+Signed-off-by: Tristan Madani <tristan@talencesecurity.com>
+Link: https://patch.msgid.link/20260702005020.708717-1-tristmd@gmail.com
+Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/wireless/ath/ath6kl/txrx.c | 10 ++++++----
+ 1 file changed, 6 insertions(+), 4 deletions(-)
+
+--- a/drivers/net/wireless/ath/ath6kl/txrx.c
++++ b/drivers/net/wireless/ath/ath6kl/txrx.c
+@@ -1722,13 +1722,15 @@ void aggr_recv_addba_req_evt(struct ath6
+
+ rxtid = &aggr_conn->rx_tid[tid];
+
+- if (win_sz < AGGR_WIN_SZ_MIN || win_sz > AGGR_WIN_SZ_MAX)
+- ath6kl_dbg(ATH6KL_DBG_WLAN_RX, "%s: win_sz %d, tid %d\n",
+- __func__, win_sz, tid);
+-
+ if (rxtid->aggr)
+ aggr_delete_tid_state(aggr_conn, tid);
+
++ if (win_sz < AGGR_WIN_SZ_MIN || win_sz > AGGR_WIN_SZ_MAX) {
++ ath6kl_dbg(ATH6KL_DBG_WLAN_RX, "%s: win_sz %d, tid %d\n",
++ __func__, win_sz, tid);
++ return;
++ }
++
+ rxtid->seq_next = seq_no;
+ hold_q_size = TID_WINDOW_SZ(win_sz) * sizeof(struct skb_hold_q);
+ rxtid->hold_q = kzalloc(hold_q_size, GFP_KERNEL);
--- /dev/null
+From 538c51e9d124cf656f2dd0c0394a8545efc7102d Mon Sep 17 00:00:00 2001
+From: Fan Wu <fanwu01@zju.edu.cn>
+Date: Sat, 18 Jul 2026 02:43:52 +0000
+Subject: wifi: brcmfmac: make release_scratchbuffers idempotent
+
+From: Fan Wu <fanwu01@zju.edu.cn>
+
+commit 538c51e9d124cf656f2dd0c0394a8545efc7102d upstream.
+
+brcmf_pcie_release_scratchbuffers() frees the shared.scratch and
+shared.ringupd DMA buffers with dma_free_coherent() but does not clear
+the pointers afterwards, unlike the sibling release_ringbuffers() which
+NULLs commonrings/flowrings/idxbuf on release.
+
+Both the bus_reset .reset callback (brcmf_pcie_reset) and
+brcmf_pcie_remove() call release_scratchbuffers. When reset teardown
+has run before removal, remove's own teardown would call
+dma_free_coherent() a second time on the already-freed DMA allocation.
+
+NULL the pointers after free, matching release_ringbuffers(), so a later
+release observes that the allocation has already been released. This
+patch makes repeated sequential release safe; the reset-work lifetime is
+handled separately by the following patch.
+
+This issue was found by an in-house static analysis tool.
+
+Fixes: 4684997d9eea ("brcmfmac: reset PCIe bus on a firmware crash")
+Cc: stable@vger.kernel.org
+Signed-off-by: Fan Wu <fanwu01@zju.edu.cn>
+Assisted-by: Codex:gpt-5.6
+Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
+Link: https://patch.msgid.link/20260718024353.3147201-2-fanwu01@zju.edu.cn
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
+@@ -1356,16 +1356,20 @@ fail:
+ static void
+ brcmf_pcie_release_scratchbuffers(struct brcmf_pciedev_info *devinfo)
+ {
+- if (devinfo->shared.scratch)
++ if (devinfo->shared.scratch) {
+ dma_free_coherent(&devinfo->pdev->dev,
+ BRCMF_DMA_D2H_SCRATCH_BUF_LEN,
+ devinfo->shared.scratch,
+ devinfo->shared.scratch_dmahandle);
+- if (devinfo->shared.ringupd)
++ devinfo->shared.scratch = NULL;
++ }
++ if (devinfo->shared.ringupd) {
+ dma_free_coherent(&devinfo->pdev->dev,
+ BRCMF_DMA_D2H_RINGUPD_BUF_LEN,
+ devinfo->shared.ringupd,
+ devinfo->shared.ringupd_dmahandle);
++ devinfo->shared.ringupd = NULL;
++ }
+ }
+
+ static int brcmf_pcie_init_scratchbuffers(struct brcmf_pciedev_info *devinfo)
--- /dev/null
+From 39afc46c0243d10b7795e6e6cf4ae91f41732120 Mon Sep 17 00:00:00 2001
+From: Devin Wittmayer <lucid_duck@justthetip.ca>
+Date: Sat, 27 Jun 2026 12:13:36 -0700
+Subject: wifi: mt76: mt7615: drop TXRX_NOTIFY on non-mmio buses
+
+From: Devin Wittmayer <lucid_duck@justthetip.ca>
+
+commit 39afc46c0243d10b7795e6e6cf4ae91f41732120 upstream.
+
+PKT_TYPE_TXRX_NOTIFY is an mmio-only event, but mt7615_rx_check() and
+mt7615_queue_rx_skb() dispatch it to mt7615_mac_tx_free() on every bus.
+mt7615_mac_tx_free() cleans the DMA tx queues with
+mt76_queue_tx_cleanup(), which calls queue_ops->tx_cleanup(). Only the
+mmio queue ops implement that callback; on the mt7663 USB and SDIO
+buses it is NULL, so a TXRX_NOTIFY there calls a NULL pointer in the RX
+worker. Same defect as the mt7921 and mt7925 patches in this series.
+
+Drop the event on non-mmio buses via mt76_is_mmio(), as in
+commit 5683e1488aa9 ("wifi: mt76: connac: do not check WED status for
+non-mmio devices").
+
+Fixes: eb99cc95c3b6 ("mt76: mt7615: introduce mt7663u support")
+Cc: stable@vger.kernel.org
+Signed-off-by: Devin Wittmayer <lucid_duck@justthetip.ca>
+Link: https://patch.msgid.link/20260627191336.20223-4-lucid_duck@justthetip.ca
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
++++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+@@ -1618,6 +1618,8 @@ bool mt7615_rx_check(struct mt76_dev *md
+
+ switch (type) {
+ case PKT_TYPE_TXRX_NOTIFY:
++ if (!mt76_is_mmio(mdev))
++ return false;
+ mt7615_mac_tx_free(dev, data, len);
+ return false;
+ case PKT_TYPE_TXS:
+@@ -1651,6 +1653,10 @@ void mt7615_queue_rx_skb(struct mt76_dev
+ dev_kfree_skb(skb);
+ break;
+ case PKT_TYPE_TXRX_NOTIFY:
++ if (!mt76_is_mmio(mdev)) {
++ dev_kfree_skb(skb);
++ break;
++ }
+ mt7615_mac_tx_free(dev, skb->data, skb->len);
+ dev_kfree_skb(skb);
+ break;
--- /dev/null
+From da4082e91acabc1498611ed8ccc53f0610baefc6 Mon Sep 17 00:00:00 2001
+From: Devin Wittmayer <lucid_duck@justthetip.ca>
+Date: Sat, 27 Jun 2026 12:13:34 -0700
+Subject: wifi: mt76: mt7921: drop TXRX_NOTIFY on non-mmio buses
+
+From: Devin Wittmayer <lucid_duck@justthetip.ca>
+
+commit da4082e91acabc1498611ed8ccc53f0610baefc6 upstream.
+
+PKT_TYPE_TXRX_NOTIFY is an mmio-only event, but mt7921_rx_check() and
+mt7921_queue_rx_skb() dispatch it to mt7921_mac_tx_free() on every bus.
+mt7921_mac_tx_free() cleans the DMA tx queues with
+mt76_queue_tx_cleanup(), which calls queue_ops->tx_cleanup(). Only the
+mmio queue ops implement that callback; on USB and SDIO it is NULL, so
+a TXRX_NOTIFY there calls a NULL pointer in the RX worker:
+
+ BUG: kernel NULL pointer dereference, address: 0000000000000000
+ RIP: 0010:0x0
+ Call Trace:
+ mt7921_mac_tx_free+0x64/0x310 [mt7921_common]
+ mt7921_rx_check+0x5f/0xf0 [mt7921_common]
+ mt76u_rx_worker+0x1b9/0x620 [mt76_usb]
+
+Drop the event on non-mmio buses via mt76_is_mmio(), as in
+commit 5683e1488aa9 ("wifi: mt76: connac: do not check WED status for
+non-mmio devices").
+
+Fixes: 48fab5bbef40 ("mt76: mt7921: introduce mt7921s support")
+Cc: stable@vger.kernel.org
+Signed-off-by: Devin Wittmayer <lucid_duck@justthetip.ca>
+Link: https://patch.msgid.link/20260627191336.20223-2-lucid_duck@justthetip.ca
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 10 +++++++---
+ 1 file changed, 7 insertions(+), 3 deletions(-)
+
+--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
++++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+@@ -678,8 +678,9 @@ bool mt7921_rx_check(struct mt76_dev *md
+
+ switch (type) {
+ case PKT_TYPE_TXRX_NOTIFY:
+- /* PKT_TYPE_TXRX_NOTIFY can be received only by mmio devices */
+- mt7921_mac_tx_free(dev, data, len); /* mmio */
++ if (!mt76_is_mmio(mdev))
++ return false;
++ mt7921_mac_tx_free(dev, data, len);
+ return false;
+ case PKT_TYPE_TXS:
+ for (rxd += 2; rxd + 8 <= end; rxd += 8)
+@@ -708,7 +709,10 @@ void mt7921_queue_rx_skb(struct mt76_dev
+
+ switch (type) {
+ case PKT_TYPE_TXRX_NOTIFY:
+- /* PKT_TYPE_TXRX_NOTIFY can be received only by mmio devices */
++ if (!mt76_is_mmio(mdev)) {
++ napi_consume_skb(skb, 1);
++ break;
++ }
+ mt7921_mac_tx_free(dev, skb->data, skb->len);
+ napi_consume_skb(skb, 1);
+ break;
--- /dev/null
+From c3d68e294cbb6a4090bb219d3dcaca85a011809b Mon Sep 17 00:00:00 2001
+From: Doruk Tan Ozturk <doruk@0sec.ai>
+Date: Thu, 16 Jul 2026 12:30:42 +0200
+Subject: wifi: mwifiex: fix NULL dereference when the AP has HT-cap but no HT-oper
+
+From: Doruk Tan Ozturk <doruk@0sec.ai>
+
+commit c3d68e294cbb6a4090bb219d3dcaca85a011809b upstream.
+
+mwifiex_tdls_add_ht_oper() gates its follow-the-AP-bandwidth path on
+bss_desc->bcn_ht_cap being present, but then dereferences a different
+pointer, bss_desc->bcn_ht_oper:
+
+ if (ISSUPP_CHANWIDTH40(priv->adapter->hw_dot_11n_dev_cap) &&
+ bss_desc->bcn_ht_cap &&
+ ISALLOWED_CHANWIDTH40(bss_desc->bcn_ht_oper->ht_param))
+
+bcn_ht_cap and bcn_ht_oper are populated independently while parsing the
+associated AP's beacon in mwifiex_update_bss_desc_with_ie(): an AP that
+advertises an HT Capabilities element but no HT Operation element leaves
+bcn_ht_cap non-NULL and bcn_ht_oper NULL. Setting up a TDLS link to a
+peer while associated to such an AP then dereferences the NULL
+bcn_ht_oper and crashes the kernel. Every other bcn_ht_oper user in the
+driver NULL-checks it first.
+
+Guard on the pointer that is actually dereferenced.
+
+Found by 0sec automated security-research tooling (https://0sec.ai).
+
+Fixes: 396939f94084 ("mwifiex: add HT operation IE in TDLS setup confirm")
+Cc: stable@vger.kernel.org
+Assisted-by: 0sec:multi-model
+Signed-off-by: Doruk Tan Ozturk <doruk@0sec.ai>
+Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
+Link: https://patch.msgid.link/20260716103042.88469-1-doruk@0sec.ai
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/wireless/marvell/mwifiex/tdls.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/net/wireless/marvell/mwifiex/tdls.c
++++ b/drivers/net/wireless/marvell/mwifiex/tdls.c
+@@ -215,7 +215,7 @@ mwifiex_tdls_add_ht_oper(struct mwifiex_
+
+ /* follow AP's channel bandwidth */
+ if (ISSUPP_CHANWIDTH40(priv->adapter->hw_dot_11n_dev_cap) &&
+- bss_desc->bcn_ht_cap &&
++ bss_desc->bcn_ht_oper &&
+ ISALLOWED_CHANWIDTH40(bss_desc->bcn_ht_oper->ht_param))
+ ht_oper->ht_param = bss_desc->bcn_ht_oper->ht_param;
+
--- /dev/null
+From 4c4c97b60a5e978121d9ee8cb0ab3916e5d6a8de Mon Sep 17 00:00:00 2001
+From: Huihui Huang <hhhuang@smu.edu.sg>
+Date: Tue, 14 Jul 2026 17:17:58 +0800
+Subject: wifi: wilc1000: validate assoc response length before subtracting header
+
+From: Huihui Huang <hhhuang@smu.edu.sg>
+
+commit 4c4c97b60a5e978121d9ee8cb0ab3916e5d6a8de upstream.
+
+wilc_parse_assoc_resp_info() computes the trailing IE length as
+
+ ies_len = buffer_len - sizeof(*res);
+
+without first checking that buffer_len is at least sizeof(struct
+wilc_assoc_resp) (6 bytes). buffer_len is the length reported for a
+received association response (host_int_parse_assoc_resp_info() passes
+hif_drv->assoc_resp / assoc_resp_info_len straight in) and must be
+validated before the driver accesses the fixed header.
+
+For a frame shorter than the 6-byte fixed header, the subtraction wraps.
+For a four-byte response the result is truncated to a u16 ies_len of
+65534, so kmemdup() then attempts to copy 65534 bytes starting at
+buffer + sizeof(*res), beyond the valid association-response data
+(CWE-125). A response shorter than four bytes can also cause an
+out-of-bounds read of res->status_code at offsets 2 and 3.
+
+Reject frames too short to hold the fixed header before touching the
+header or computing ies_len. Also set the connection status to a failure
+on this path: the caller falls through to a
+"conn_info->status == WLAN_STATUS_SUCCESS" check after the parser
+returns, so leaving the status untouched could let a malformed short
+response be treated as a successful association.
+
+Fixes: c5c77ba18ea6 ("staging: wilc1000: Add SDIO/SPI 802.11 driver")
+Cc: stable@vger.kernel.org
+Assisted-by: Claude:claude-opus-4-8
+Signed-off-by: Huihui Huang <hhhuang@smu.edu.sg>
+Link: https://patch.msgid.link/20260714091811.3596126-1-hhhuang@smu.edu.sg
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/wireless/microchip/wilc1000/hif.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/net/wireless/microchip/wilc1000/hif.c
++++ b/drivers/net/wireless/microchip/wilc1000/hif.c
+@@ -597,6 +597,11 @@ static s32 wilc_parse_assoc_resp_info(u8
+ u16 ies_len;
+ struct wilc_assoc_resp *res = (struct wilc_assoc_resp *)buffer;
+
++ if (buffer_len < sizeof(*res)) {
++ ret_conn_info->status = WLAN_STATUS_UNSPECIFIED_FAILURE;
++ return -EINVAL;
++ }
++
+ ret_conn_info->status = le16_to_cpu(res->status_code);
+ if (ret_conn_info->status == WLAN_STATUS_SUCCESS) {
+ ies = &buffer[sizeof(*res)];
projects / thirdparty / kernel / stable-queue.git / commitdiff
