Dave Carey [Thu, 2 Apr 2026 18:29:50 +0000 (14:29 -0400)]
USB: cdc-acm: Add quirks for Yoga Book 9 14IAH10 INGENIC touchscreen
The Lenovo Yoga Book 9 14IAH10 (83KJ) has a composite USB device
(17EF:6161) that controls both touchscreens via a CDC ACM interface.
Interface 0 is a standard CDC ACM control interface, but interface 1
(the data interface) incorrectly declares vendor-specific class (0xFF)
instead of USB_CLASS_CDC_DATA. cdc-acm rejects the device at probe with
-EINVAL, leaving interface 0 unbound and EP 0x82 never polled.
With no consumer polling EP 0x82, the firmware's watchdog fires every
~20 seconds and resets the USB bus, producing a continuous disconnect/
reconnect loop that prevents the touchscreens from ever initialising.
Add two new quirk flags:
VENDOR_CLASS_DATA_IFACE: Bypasses the bInterfaceClass check in
acm_probe() that would otherwise reject the vendor-class data
interface with -EINVAL.
ALWAYS_POLL_CTRL: Submits the notification URB at probe() rather than
waiting for a TTY open. This keeps EP 0x82 polled at all times,
permanently suppressing the firmware watchdog. The URB is resubmitted
after port_shutdown() and on system resume. SET_CONTROL_LINE_STATE
(DTR|RTS) is sent at probe and after port_shutdown() to complete
firmware handshake.
Note: the firmware performs exactly 4 USB connect/disconnect cycles
(~19 s each) on every cold boot before stabilising. This is a fixed
firmware property; touch is available ~75-80 s after power-on.
Signed-off-by: Dave Carey <carvsdriver@gmail.com> Cc: stable <stable@kernel.org> Tested-by: Dave Carey <carvsdriver@gmail.com> Acked-by: Oliver Neukum <oneukum@suse.com> Link: https://patch.msgid.link/20260402182950.389016-1-carvsdriver@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Daniel Brát [Thu, 2 Apr 2026 17:24:33 +0000 (19:24 +0200)]
usb: storage: Expand range of matched versions for VL817 quirks entry
Expands range of matched bcdDevice values for the VL817 quirk entry.
This is based on experience with Axagon EE35-GTR rev1 3.5" HDD
enclosure, which reports its bcdDevice as 0x0843, but presumably other
vendors using this IC in their products may set it to any other value.
Xu Yang [Thu, 2 Apr 2026 07:14:57 +0000 (15:14 +0800)]
usb: chipidea: otg: not wait vbus drop if use role_switch
The usb role switch will update ID and VBUS states at the same time, and
vbus will not drop when execute data role swap in Type-C usecase. So lets
not wait vbus drop in usb role switch case too.
Fixes: e1b5d2bed67c ("usb: chipidea: core: handle usb role switch in a common way") Cc: stable@vger.kernel.org Acked-by: Peter Chen <peter.chen@kernel.org> Reviewed-by: Jun Li <jun.li@nxp.com> Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Link: https://patch.msgid.link/20260402071457.2516021-3-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Xu Yang [Thu, 2 Apr 2026 07:14:56 +0000 (15:14 +0800)]
usb: chipidea: core: allow ci_irq_handler() handle both ID and VBUS change
For USB role switch-triggered IRQ, ID and VBUS change come together, for
example when switching from host to device mode. ID indicate a role switch
and VBUS is required to determine whether the device controller can start
operating. Currently, ci_irq_handler() handles only a single event per
invocation. This can cause an issue where switching to device mode results
in the device controller not working at all. Allowing ci_irq_handler() to
handle both ID and VBUS change in one call resolves this issue.
Meanwhile, this change also affects the VBUS event handling logic.
Previously, if an ID event indicated host mode the VBUS IRQ will be
ignored as the device disable BSE when stop() is called. With the new
behavior, if ID and VBUS IRQ occur together and the target mode is host,
the VBUS event is queued and ci_handle_vbus_change() will call
usb_gadget_vbus_connect(), after which USBMODE is switched to device mode,
causing host mode to stop working. To prevent this, an additional check is
added to skip handling VBUS event when current role is not device mode.
Suggested-by: Peter Chen <peter.chen@kernel.org> Fixes: e1b5d2bed67c ("usb: chipidea: core: handle usb role switch in a common way") Cc: stable@vger.kernel.org Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Link: https://patch.msgid.link/20260402071457.2516021-2-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge tag 'riscv-for-linus-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
- Fix a CONFIG_SPARSEMEM crash on RV32 by avoiding early phys_to_page()
- Prevent runtime const infrastructure from being used by modules,
similar to what was done for x86
- Avoid problems when shutting down ACPI systems with IOMMUs by adding
a device dependency between IOMMU and devices that use it
- Fix a bug where the CPU pointer masking state isn't properly reset
when tagged addresses aren't enabled for a task
- Fix some incorrect register assignments, and add some missing ones,
in kgdb support code
- Fix compilation of non-kernel code that uses the ptrace uapi header
by replacing BIT() with _BITUL()
- Fix compilation of the validate_v_ptrace kselftest by working around
kselftest macro expansion issues
* tag 'riscv-for-linus-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
ACPI: RIMT: Add dependency between iommu and devices
selftests: riscv: Add braces around EXPECT_EQ()
riscv: use _BITUL macro rather than BIT() in ptrace uapi and kselftests
riscv: Reset pmm when PR_TAGGED_ADDR_ENABLE is not set
riscv: make runtime const not usable by modules
riscv: patch: Avoid early phys_to_page()
riscv: kgdb: fix several debug register assignment bugs
* tag 'x86-urgent-2026-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/platform/geode: Fix on-stack property data use-after-return bug
x86/kexec: Disable KCOV instrumentation after load_segments()
Merge tag 'perf-urgent-2026-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fix from Ingo Molnar:
- Fix potential bad container_of() in intel_pmu_hw_config() (Ian
Rogers)
* tag 'perf-urgent-2026-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86: Fix potential bad container_of in intel_pmu_hw_config
Merge tag 'irq-urgent-2026-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Ingo Molnar:
- Fix RISC-V APLIC irqchip driver setup errors on ACPI systems (Jessica
Liu)
* tag 'irq-urgent-2026-04-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/riscv-aplic: Restrict genpd notifier to device tree only
i915: don't use a vma that didn't match the context VM
In eb_lookup_vma(), the code checks that the context vm matches before
incrementing the i915 vma usage count, but for the non-matching case it
didn't clear the non-matching vma pointer, so it would then mistakenly
be returned, causing potential UaF and refcount issues.
Merge tag 'mips-fixes_7.0_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Thomas Bogendoerfer:
- Fix TLB uniquification for systems with TLB not initialised by
firmware
- Fix allocation in TLB uniquification
- Fix SiByte cache initialisation
- Check uart parameters from firmware on Loongson64 systems
- Fix clock id mismatch for Ralink SoCs
- Fix GCC version check for __mutli3 workaround
* tag 'mips-fixes_7.0_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
mips: mm: Allocate tlb_vpn array atomically
MIPS: mm: Rewrite TLB uniquification for the hidden bit feature
MIPS: mm: Suppress TLB uniquification on EHINV hardware
MIPS: Always record SEGBITS in cpu_data.vmbits
MIPS: Fix the GCC version check for `__multi3' workaround
MIPS: SiByte: Bring back cache initialisation
mips: ralink: update CPU clock index
MIPS: Loongson64: env: Check UARTs passed by LEFI cautiously
Merge tag 'char-misc-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc/iio driver fixes from Greg KH:
"Here are a relativly large number of small char/misc/iio and other
driver fixes for 7.0-rc7. There's a bunch, but overall they are all
small fixes for issues that people have been having that I finally
caught up with getting merged due to delays on my end.
The "largest" change overall is just some documentation updates to the
security-bugs.rst file to hopefully tell the AI tools (and any users
that actually read the documentation), how to send us better security
bug reports as the quantity of reports these past few weeks has
increased dramatically due to tools getting better at "finding"
things.
Included in here are:
- lots of small IIO driver fixes for issues reported in 7.0-rc
- gpib driver fixes
- comedi driver fixes
- interconnect driver fix
- nvmem driver fixes
- mei driver fix
- counter driver fix
- binder rust driver fixes
- some other small misc driver fixes
All of these have been in linux-next this week with no reported issues"
* tag 'char-misc-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (63 commits)
Documentation: fix two typos in latest update to the security report howto
Documentation: clarify the mandatory and desirable info for security reports
Documentation: explain how to find maintainers addresses for security reports
Documentation: minor updates to the security contacts
.get_maintainer.ignore: add myself
nvmem: zynqmp_nvmem: Fix buffer size in DMA and memcpy
nvmem: imx: assign nvmem_cell_info::raw_len
misc: fastrpc: check qcom_scm_assign_mem() return in rpmsg_probe
misc: fastrpc: possible double-free of cctx->remote_heap
comedi: dt2815: add hardware detection to prevent crash
comedi: runflags cannot determine whether to reclaim chanlist
comedi: Reinit dev->spinlock between attachments to low-level drivers
comedi: me_daq: Fix potential overrun of firmware buffer
comedi: me4000: Fix potential overrun of firmware buffer
comedi: ni_atmio16d: Fix invalid clean-up after failed attach
gpib: fix use-after-free in IO ioctl handlers
gpib: lpvo_usb: fix memory leak on disconnect
gpib: Fix fluke driver s390 compile issue
lis3lv02d: Omit IRQF_ONESHOT if no threaded handler is provided
lis3lv02d: fix kernel-doc warnings
...
Merge tag 'tty-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty fixes from Greg KH:
"Here are two small tty vt fixes for 7.0-rc7 to resolve some reported
issues with the resize ability of the alt screen buffer. Both of these
have been in linux-next all week with no reported issues"
* tag 'tty-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
vt: resize saved unicode buffer on alt screen exit after resize
vt: discard stale unicode buffer on alt screen exit after resize
Merge tag 'usb-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/Thunderbolt fixes from Greg KH:
"Here are a bunch of USB and Thunderbolt fixes (most all are USB) for
7.0-rc7. More than I normally like this late in the release cycle,
partly due to my recent travels, and partly due to people banging away
on the USB gadget interfaces and apis more than normal (big shoutout
to Android for getting the vendors to actually work upstream on this,
that's a huge win overall for everyone here)
Included in here are:
- Small thunderbolt fix
- new USB serial driver ids added
- typec driver fixes
- gadget driver fixes for some disconnect issues
- other usb gadget driver fixes for reported problems with binding
and unbinding devices as happens when a gadget device connects /
disconnects from a system it is plugged into (or it switches device
mode at a user's request, these things are complex little
beasts...)
- usb offload fixes (where USB audio tunnels through the controller
while the main CPU is asleep) for when EMP spikes hit the system
causing disconnects to happen (as often happens with static
electricity in the winter months). This has been much reported by
at least one vendor, and resolves the issues they have been seeing
with this codepath. Can't wait for the "formal methods are the
answer!" people to try to model that one properly...
- Other small usb driver fixes for issues reported.
All of these have been in linux-next this week, and before, with no
reported issues, and I've personally been stressing these harder than
normal on my systems here with no problems"
* tag 'usb-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (39 commits)
usb: gadget: f_hid: move list and spinlock inits from bind to alloc
usb: host: xhci-sideband: delegate offload_usage tracking to class drivers
usb: core: use dedicated spinlock for offload state
usb: cdns3: gadget: fix state inconsistency on gadget init failure
usb: dwc3: imx8mp: fix memory leak on probe failure path
usb: gadget: f_uac1_legacy: validate control request size
usb: ulpi: fix double free in ulpi_register_interface() error path
usb: misc: usbio: Fix URB memory leak on submit failure
USB: core: add NO_LPM quirk for Razer Kiyo Pro webcam
usb: cdns3: gadget: fix NULL pointer dereference in ep_queue
usb: core: phy: avoid double use of 'usb3-phy'
USB: serial: option: add MeiG Smart SRM825WN
usb: gadget: f_rndis: Fix net_device lifecycle with device_move
usb: gadget: f_subset: Fix net_device lifecycle with device_move
usb: gadget: f_eem: Fix net_device lifecycle with device_move
usb: gadget: f_ecm: Fix net_device lifecycle with device_move
usb: gadget: u_ncm: Add kernel-doc comments for struct f_ncm_opts
usb: gadget: f_rndis: Protect RNDIS options with mutex
usb: gadget: f_subset: Fix unbalanced refcnt in geth_free
dt-bindings: connector: add pd-disable dependency
...
Sunil V L [Tue, 3 Mar 2026 06:16:05 +0000 (11:46 +0530)]
ACPI: RIMT: Add dependency between iommu and devices
EPROBE_DEFER ensures IOMMU devices are probed before the devices that
depend on them. During shutdown, however, the IOMMU may be removed
first, leading to issues. To avoid this, a device link is added
which enforces the correct removal order.
Charlie Jenkins [Tue, 10 Mar 2026 01:52:11 +0000 (18:52 -0700)]
selftests: riscv: Add braces around EXPECT_EQ()
EXPECT_EQ() expands to multiple lines, breaking up one-line if
statements. This issue was not present in the patch on the mailing list
but was instead introduced by the maintainer when attempting to fix up
checkpatch warnings. Add braces around EXPECT_EQ() to avoid the error
even though checkpatch suggests them to be removed:
validate_v_ptrace.c:626:17: error: ‘else’ without a previous ‘if’
Paul Walmsley [Thu, 2 Apr 2026 23:18:03 +0000 (17:18 -0600)]
riscv: use _BITUL macro rather than BIT() in ptrace uapi and kselftests
Fix the build of non-kernel code that includes the RISC-V ptrace uapi
header, and the RISC-V validate_v_ptrace.c kselftest, by using the
_BITUL() macro rather than BIT(). BIT() is not available outside
the kernel.
Based on patches and comments from Charlie Jenkins, Michael Neuling,
and Andreas Schwab.
Zishun Yi [Sun, 22 Mar 2026 16:00:22 +0000 (00:00 +0800)]
riscv: Reset pmm when PR_TAGGED_ADDR_ENABLE is not set
In set_tagged_addr_ctrl(), when PR_TAGGED_ADDR_ENABLE is not set, pmlen
is correctly set to 0, but it forgets to reset pmm. This results in the
CPU pmm state not corresponding to the software pmlen state.
Fix this by resetting pmm along with pmlen.
Fixes: 2e1743085887 ("riscv: Add support for the tagged address ABI") Signed-off-by: Zishun Yi <vulab@iscas.ac.cn> Reviewed-by: Samuel Holland <samuel.holland@sifive.com> Link: https://patch.msgid.link/20260322160022.21908-1-vulab@iscas.ac.cn Signed-off-by: Paul Walmsley <pjw@kernel.org>
Jisheng Zhang [Sat, 21 Feb 2026 02:37:31 +0000 (10:37 +0800)]
riscv: make runtime const not usable by modules
Similar as commit 284922f4c563 ("x86: uaccess: don't use runtime-const
rewriting in modules") does, make riscv's runtime const not usable by
modules too, to "make sure this doesn't get forgotten the next time
somebody wants to do runtime constant optimizations". The reason is
well explained in the above commit: "The runtime-const infrastructure
was never designed to handle the modular case, because the constant
fixup is only done at boot time for core kernel code."
Vivian Wang [Mon, 23 Mar 2026 23:43:47 +0000 (17:43 -0600)]
riscv: patch: Avoid early phys_to_page()
Similarly to commit 8d09e2d569f6 ("arm64: patching: avoid early
page_to_phys()"), avoid using phys_to_page() for the kernel address case
in patch_map().
Since this is called from apply_boot_alternatives() in setup_arch(), and
commit 4267739cabb8 ("arch, mm: consolidate initialization of SPARSE
memory model") has moved sparse_init() to after setup_arch(),
phys_to_page() is not available there yet, and it panics on boot with
SPARSEMEM on RV32, which does not use SPARSEMEM_VMEMMAP.
Reported-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Closes: https://lore.kernel.org/r/20260223144108-dcace0b9-02e8-4b67-a7ce-f263bed36f26@linutronix.de/ Fixes: 4267739cabb8 ("arch, mm: consolidate initialization of SPARSE memory model") Suggested-by: Mike Rapoport <rppt@kernel.org> Signed-off-by: Vivian Wang <wangruikang@iscas.ac.cn> Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Tested-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Link: https://patch.msgid.link/20260310-riscv-sparsemem-alternatives-fix-v1-1-659d5dd257e2@iscas.ac.cn
[pjw@kernel.org: fix the subject line to align with the patch description] Signed-off-by: Paul Walmsley <pjw@kernel.org>
Paul Walmsley [Mon, 23 Mar 2026 23:43:47 +0000 (17:43 -0600)]
riscv: kgdb: fix several debug register assignment bugs
Fix several bugs in the RISC-V kgdb implementation:
- The element of dbg_reg_def[] that is supposed to pertain to the S1
register embeds instead the struct pt_regs offset of the A1
register. Fix this to use the S1 register offset in struct pt_regs.
- The sleeping_thread_to_gdb_regs() function copies the value of the
S10 register into the gdb_regs[] array element meant for the S9
register, and copies the value of the S11 register into the array
element meant for the S10 register. It also neglects to copy the
value of the S11 register. Fix all of these issues.
Merge tag 'input-for-v7.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- new IDs for BETOP BTP-KP50B/C and Razer Wolverine V3 Pro added to
xpad controller driver
- another quirk for new TUXEDO InfinityBook added to i8042
- a small fixup for Synaptics RMI4 driver to properly unlock mutex when
encountering an error in F54
- an update to bcm5974 touch controller driver to reliably switch into
wellspring mode
* tag 'input-for-v7.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: xpad - add support for BETOP BTP-KP50B/C controller's wireless mode
Input: xpad - add support for Razer Wolverine V3 Pro
Input: synaptics-rmi4 - fix a locking bug in an error path
Input: i8042 - add TUXEDO InfinityBook Max 16 Gen10 AMD to i8042 quirk table
Input: bcm5974 - recover from failed mode switch
Documentation: fix two typos in latest update to the security report howto
In previous patch "Documentation: clarify the mandatory and desirable
info for security reports" I left two typos that I didn't detect in local
checks. One is "get_maintainers.pl" (no 's' in the script name), and the
other one is a missing closing quote after "Reported-by", which didn't
have effect here but I don't know if it can break rendering elsewhere
(e.g. on the public HTML page). Better fix it before it gets merged.
Input: xpad - add support for BETOP BTP-KP50B/C controller's wireless mode
BETOP's BTP-KP50B and BTP-KP50C controller's wireless dongles are both
working as standard Xbox 360 controllers. Add USB device IDs for them to
xpad driver.
Input: xpad - add support for Razer Wolverine V3 Pro
Add device IDs for the Razer Wolverine V3 Pro controller in both
wired (0x0a57) and wireless 2.4 GHz dongle (0x0a59) modes.
The controller uses the Xbox 360 protocol (vendor-specific class,
subclass 93, protocol 1) on interface 0 with an identical 20-byte
input report layout, so no additional processing is needed.
Merge tag 's390-7.0-7' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Fix a memory leak in the zcrypt driver where the AP message buffer
for clear key RSA requests was allocated twice, once by the caller
and again locally, causing the first allocation to never be freed
- Fix the cpum_sf perf sampling rate overflow adjustment to clamp the
recalculated rate to the hardware maximum, preventing exceptions on
heavily loaded systems running with HZ=1000
* tag 's390-7.0-7' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/zcrypt: Fix memory leak with CCA cards used as accelerator
s390/cpum_sf: Cap sampling rate to prevent lsctl exception
Merge tag 'hwmon-for-v7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Fix temperature sensor for PRIME X670E-PRO WIFI
- occ: Add missing newline, and fix potential division by zero
- pmbus:
- Fix device ID comparison and printing in tps53676_identify()
- Add missing MODULE_IMPORT_NS("PMBUS") for ltc4286
- Check return value of page-select write in pxe1610 probe
- Fix array access with zero-length block tps53679 read
* tag 'hwmon-for-v7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (asus-ec-sensors) Fix T_Sensor for PRIME X670E-PRO WIFI
hwmon: (occ) Fix missing newline in occ_show_extended()
hwmon: (occ) Fix division by zero in occ_show_power_1()
hwmon: (tps53679) Fix device ID comparison and printing in tps53676_identify()
hwmon: (ltc4286) Add missing MODULE_IMPORT_NS("PMBUS")
hwmon: (pxe1610) Check return value of page-select write in probe
hwmon: (tps53679) Fix array access with zero-length block read
Merge tag 'sched_ext-for-7.0-rc6-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
Pull sched_ext fixes from Tejun Heo:
"These are late but both fix subtle yet critical problems and the blast
radius is limited strictly to sched_ext.
- Fix stale direct dispatch state in ddsp_dsq_id which can cause
spurious warnings in mark_direct_dispatch() on task wakeup
- Fix is_bpf_migration_disabled() false negative on non-PREEMPT_RCU
configs which can lead to incorrectly dispatching migration-
disabled tasks to remote CPUs"
* tag 'sched_ext-for-7.0-rc6-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
sched_ext: Fix stale direct dispatch state in ddsp_dsq_id
sched_ext: Fix is_bpf_migration_disabled() false negative on non-PREEMPT_RCU
Merge tag 'spi-fix-v7.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A small collection of fixes, mostly probe/remove issues that are the
result of Felix Gu going and auditing those areas, plus one error
handling fix for the Cadence QSPI driver"
* tag 'spi-fix-v7.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: cadence-qspi: Fix exec_mem_op error handling
spi: amlogic: spifc-a4: unregister ECC engine on probe failure and remove() callback
spi: stm32-ospi: Fix DMA channel leak on stm32_ospi_dma_setup() failure
spi: stm32-ospi: Fix reset control leak on probe error
spi: stm32-ospi: Fix resource leak in remove() callback
Andrea Righi [Fri, 3 Apr 2026 06:57:20 +0000 (08:57 +0200)]
sched_ext: Fix stale direct dispatch state in ddsp_dsq_id
@p->scx.ddsp_dsq_id can be left set (non-SCX_DSQ_INVALID) triggering a
spurious warning in mark_direct_dispatch() when the next wakeup's
ops.select_cpu() calls scx_bpf_dsq_insert(), such as:
WARNING: kernel/sched/ext.c:1273 at scx_dsq_insert_commit+0xcd/0x140
The root cause is that ddsp_dsq_id was only cleared in dispatch_enqueue(),
which is not reached in all paths that consume or cancel a direct dispatch
verdict.
Fix it by clearing it at the right places:
- direct_dispatch(): cache the direct dispatch state in local variables
and clear it before dispatch_enqueue() on the synchronous path. For
the deferred path, the direct dispatch state must remain set until
process_ddsp_deferred_locals() consumes them.
- process_ddsp_deferred_locals(): cache the dispatch state in local
variables and clear it before calling dispatch_to_local_dsq(), which
may migrate the task to another rq.
- do_enqueue_task(): clear the dispatch state on the enqueue path
(local/global/bypass fallbacks), where the direct dispatch verdict is
ignored.
- dequeue_task_scx(): clear the dispatch state after dispatch_dequeue()
to handle both the deferred dispatch cancellation and the holding_cpu
race, covering all cases where a pending direct dispatch is
cancelled.
- scx_disable_task(): clear the direct dispatch state when
transitioning a task out of the current scheduler. Waking tasks may
have had the direct dispatch state set by the outgoing scheduler's
ops.select_cpu() and then been queued on a wake_list via
ttwu_queue_wakelist(), when SCX_OPS_ALLOW_QUEUED_WAKEUP is set. Such
tasks are not on the runqueue and are not iterated by scx_bypass(),
so their direct dispatch state won't be cleared. Without this clear,
any subsequent SCX scheduler that tries to direct dispatch the task
will trigger the WARN_ON_ONCE() in mark_direct_dispatch().
Fixes: 5b26f7b920f7 ("sched_ext: Allow SCX_DSQ_LOCAL_ON for direct dispatches") Cc: stable@vger.kernel.org # v6.12+ Cc: Daniel Hodges <hodgesd@meta.com> Cc: Patrick Somaru <patsomaru@meta.com> Signed-off-by: Andrea Righi <arighi@nvidia.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Merge tag 'pm-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix a potential NULL pointer dereference in the energy model
netlink interface and a potential double free in an error path in
the common cpufreq governor management code:
- Fix a NULL pointer dereference in the energy model netlink
interface that may occur if a given perf domain ID is not
recognized (Changwoo Min)
- Avoid double free in the cpufreq_dbs_governor_init() error
path when kobject_init_and_add() fails (Guangshuo Li)"
* tag 'pm-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path
PM: EM: Fix NULL pointer dereference when perf domain ID is not found
Merge tag 'thermal-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"Address potential races between thermal zone removal and system
resume that may lead to a use-after-free (in two different ways)
and a potential use-after-free in the thermal zone unregistration
path (Rafael Wysocki)"
* tag 'thermal-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: core: Fix thermal zone device registration error path
thermal: core: Address thermal zone removal races with resume
Merge tag 'gpio-fixes-for-v7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix kerneldocs for gpio-timberdale and gpio-nomadik
- clear the "requested" flag in error path in gpiod_request_commit()
- call of_xlate() if provided when setting up shared GPIOs
- handle pins shared by child firmware nodes of consumer devices
- fix return value check in gpio-qixis-fpga
- fix suspend on gpio-mxc
- fix gpio-microchip DT bindings
* tag 'gpio-fixes-for-v7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
dt-bindings: gpio: fix microchip #interrupt-cells
gpio: shared: shorten the critical section in gpiochip_setup_shared()
gpio: mxc: map Both Edge pad wakeup to Rising Edge
gpio: qixis-fpga: Fix error handling for devm_regmap_init_mmio()
gpio: shared: handle pins shared by child nodes of devices
gpio: shared: call gpio_chip::of_xlate() if set
gpiolib: clear requested flag if line is invalid
gpio: nomadik: repair some kernel-doc comments
gpio: timberdale: repair kernel-doc comments
gpio: Fix resource leaks on errors in gpiochip_add_data_with_key()
Merge tag 'drm-fixes-2026-04-03' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Hopefully no Easter eggs in this bunch of fixes. Usual stuff across
the amd/intel with some misc bits. Thanks to Thorsten and Alex for
making sure a regression fix that was hanging around in process land
finally made it in, that is probably the biggest change in here.
core:
- revert unplug/framebuffer fix as it caused problems
- compat ioctl speculation fix
i915:
- Fix for #12045: Huawei Matebook E (DRR-WXX): Persistent Black
Screen on Boot with i915 and Gen11: Modesetting and Backlight
Control Malfunction
- Fix for #15826: i915: Raptor Lake-P [UHD Graphics] display
flicker/corruption on eDP panel
- Use crtc_state->enhanced_framing properly on ivb/hsw CPU eDP
xe:
- uapi: Accept canonical GPU addresses in xe_vm_madvise_ioctl
- Disallow writes to read-only VMAs
- PXP fixes
- Disable garbage collector work item on SVM close
- void memory allocations in xe_device_declare_wedged
qaic:
- hang fix
ast:
- initialisation fix"
* tag 'drm-fixes-2026-04-03' of https://gitlab.freedesktop.org/drm/kernel: (28 commits)
drm/amd/display: Wire up dcn10_dio_construct() for all pre-DCN401 generations
drm/ioc32: stop speculation on the drm_compat_ioctl path
drm/sysfb: Fix efidrm error handling and memory type mismatch
drm/i915/dp: Use crtc_state->enhanced_framing properly on ivb/hsw CPU eDP
drm/i915/cdclk: Do the full CDCLK dance for min_voltage_level changes
drm/amdkfd: Fix queue preemption/eviction failures by aligning control stack size to GPU page size
drm/amdgpu: Fix wait after reset sequence in S4
drm/amd/display: Fix NULL pointer dereference in dcn401_init_hw()
drm/amdgpu: Change AMDGPU_VA_RESERVED_TRAP_SIZE to 64KB
drm/amdgpu/userq: fix memory leak in MQD creation error paths
drm/amd: Fix MQD and control stack alignment for non-4K
drm/amdkfd: Align expected_queue_size to PAGE_SIZE
drm/amdgpu: fix the idr allocation flags
drm/amdgpu: validate doorbell_offset in user queue creation
drm/amdgpu/pm: drop SMU driver if version not matched messages
drm/xe: Avoid memory allocations in xe_device_declare_wedged()
drm/xe: Disable garbage collector work item on SVM close
drm/xe/pxp: Don't allow PXP on older PTL GSC FWs
drm/xe/pxp: Clear restart flag in pxp_start after jumping back
drm/xe/pxp: Remove incorrect handling of impossible state during suspend
...
Documentation: clarify the mandatory and desirable info for security reports
A significant part of the effort of the security team consists in begging
reporters for patch proposals, or asking them to provide them in regular
format, and most of the time they're willing to provide this, they just
didn't know that it would help. So let's add a section detailing the
required and desirable contents in a security report to help reporters
write more actionable reports which do not require round trips.
Documentation: explain how to find maintainers addresses for security reports
These days, 80% of the work done by the security team consists in
locating the affected subsystem in a report, running get_maintainers on
it, forwarding the report to these persons and responding to the reporter
with them in Cc. This is a huge and unneeded overhead that we must try to
lower for a better overall efficiency. This patch adds a complete section
explaining how to figure the list of recipients to send the report to.
Documentation: minor updates to the security contacts
This clarifies the fact that the bug reporters must use a valid
e-mail address to send their report, and that the security team
assists developers working on a fix but doesn't always produce
fixes on its own.
Dave Airlie [Fri, 3 Apr 2026 09:05:46 +0000 (19:05 +1000)]
Merge tag 'drm-misc-fixes-2026-04-02' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
A refcounting fix for bridges, revert a previous framebuffer
use-after-free fix that turned out to be causing more problems, a hang
fix for qaic, an initialization fix for ast, a error handling fix for
sysfb, and a speculation fix for drm_compat_ioctl.
Dave Airlie [Fri, 3 Apr 2026 08:31:22 +0000 (18:31 +1000)]
Merge tag 'drm-intel-fixes-2026-04-02' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
- Fix for #12045: Huawei Matebook E (DRR-WXX): Persistent Black Screen on Boot with i915 and Gen11: Modesetting and Backlight Control Malfunction
- Fix for #15826: i915: Raptor Lake-P [UHD Graphics] display flicker/corruption on eDP panel
- Use crtc_state->enhanced_framing properly on ivb/hsw CPU eDP
Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Pull bpf fixes from Alexei Starovoitov:
- Fix register equivalence for pointers to packet (Alexei Starovoitov)
- Fix incorrect pruning due to atomic fetch precision tracking (Daniel
Borkmann)
- Fix grace period wait for bpf_link-ed tracepoints (Kumar Kartikeya
Dwivedi)
- Fix use-after-free of sockmap's sk->sk_socket (Kuniyuki Iwashima)
- Reject direct access to nullable PTR_TO_BUF pointers (Qi Tang)
- Reject sleepable kprobe_multi programs at attach time (Varun R
Mallya)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
selftests/bpf: Add more precision tracking tests for atomics
bpf: Fix incorrect pruning due to atomic fetch precision tracking
bpf: Reject sleepable kprobe_multi programs at attach time
bpf: reject direct access to nullable PTR_TO_BUF pointers
bpf: sockmap: Fix use-after-free of sk->sk_socket in sk_psock_verdict_data_ready().
bpf: Fix grace period wait for tracepoint bpf_link
bpf: Fix regsafe() for pointers to packet
Merge tag 'v7.0-p4' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
- Add missing async markers to tegra
- Fix long hmac key DMA handling in caam
- Fix spurious ENOSPC errors in deflate
- Fix SG chaining in af_alg
- Do not use in-place process in algif_aead
- Fix out-of-place destination overflow in authencesn
* tag 'v7.0-p4' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption
crypto: algif_aead - Revert to operating out-of-place
crypto: af-alg - fix NULL pointer dereference in scatterwalk
crypto: deflate - fix spurious -ENOSPC
crypto: caam - fix overflow on long hmac keys
crypto: caam - fix DMA corruption on long hmac keys
crypto: tegra - Add missing CRYPTO_ALG_ASYNC
Changwoo Min [Thu, 2 Apr 2026 02:31:50 +0000 (11:31 +0900)]
sched_ext: Fix is_bpf_migration_disabled() false negative on non-PREEMPT_RCU
Since commit 8e4f0b1ebcf2 ("bpf: use rcu_read_lock_dont_migrate() for
trampoline.c"), the BPF prolog (__bpf_prog_enter) calls migrate_disable()
only when CONFIG_PREEMPT_RCU is enabled, via rcu_read_lock_dont_migrate().
Without CONFIG_PREEMPT_RCU, the prolog never touches migration_disabled,
so migration_disabled == 1 always means the task is truly
migration-disabled regardless of whether it is the current task.
The old unconditional p == current check was a false negative in this
case, potentially allowing a migration-disabled task to be dispatched to
a remote CPU and triggering scx_error in task_can_run_on_remote_rq().
Only apply the p == current disambiguation when CONFIG_PREEMPT_RCU is
enabled, where the ambiguity with the BPF prolog still exists.
Fixes: 8e4f0b1ebcf2 ("bpf: use rcu_read_lock_dont_migrate() for trampoline.c") Cc: stable@vger.kernel.org # v6.18+ Link: https://lore.kernel.org/lkml/20250821090609.42508-8-dongml2@chinatelecom.cn/ Signed-off-by: Changwoo Min <changwoo@igalia.com> Reviewed-by: Andrea Righi <arighi@nvidia.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Ionut Nechita [Mon, 23 Mar 2026 21:13:43 +0000 (23:13 +0200)]
drm/amd/display: Wire up dcn10_dio_construct() for all pre-DCN401 generations
Description:
- Commit b82f0759346617b2 ("drm/amd/display: Migrate DIO registers access
from hwseq to dio component") moved DIO_MEM_PWR_CTRL register access
behind the new dio abstraction layer but only created the dio object for
DCN 4.01. On all other generations (DCN 10/20/21/201/30/301/302/303/
31/314/315/316/32/321/35/351/36), the dio pointer is NULL, causing the
register write to be silently skipped.
This results in AFMT HDMI memory not being powered on during init_hw,
which can cause HDMI audio failures and display issues on affected
hardware including Renoir/Cezanne (DCN 2.1) APUs that use dcn10_init_hw.
Call dcn10_dio_construct() in each older DCN generation's resource.c
to create the dio object, following the same pattern as DCN 4.01. This
ensures the dio pointer is non-NULL and the mem_pwr_ctrl callback works
through the dio abstraction for all DCN generations.
Fixes: b82f07593466 ("drm/amd/display: Migrate DIO registers access from hwseq to dio component.") Reviewed-by: Ivan Lipski <ivan.lipski@amd.com> Signed-off-by: Ionut Nechita <ionut_n2001@yahoo.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Merge tag 'for-7.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fix from David Sterba:
"One more fix for a potential extent tree corruption due to an
unexpected error value.
When the search for an extent item failed, it under some circumstances
was reported as a success to the caller"
* tag 'for-7.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix incorrect return value after changing leaf in lookup_extent_data_ref()
Daniel Borkmann [Tue, 31 Mar 2026 22:20:20 +0000 (00:20 +0200)]
selftests/bpf: Add more precision tracking tests for atomics
Add verifier precision tracking tests for BPF atomic fetch operations.
Validate that backtrack_insn correctly propagates precision from the
fetch dst_reg to the stack slot for {fetch_add,xchg,cmpxchg} atomics.
For the first two src_reg gets the old memory value, and for the last
one r0. The fetched register is used for pointer arithmetic to trigger
backtracking. Also add coverage for fetch_{or,and,xor} flavors which
exercises the bitwise atomic fetch variants going through the same
insn->imm & BPF_FETCH check but with different imm values.
Add dual-precision regression tests for fetch_add and cmpxchg where
both the fetched value and a reread of the same stack slot are tracked
for precision. After the atomic operation, the stack slot is STACK_MISC,
so the ldx does not set INSN_F_STACK_ACCESS. These tests verify that
stack precision propagates solely through the atomic fetch's load side.
Add map-based tests for fetch_add and cmpxchg which validate that non-
stack atomic fetch completes precision tracking without falling back
to mark_all_scalars_precise. Lastly, add 32-bit variants for {fetch_add,
cmpxchg} on map values to cover the second valid atomic operand size.
Daniel Borkmann [Tue, 31 Mar 2026 22:20:19 +0000 (00:20 +0200)]
bpf: Fix incorrect pruning due to atomic fetch precision tracking
When backtrack_insn encounters a BPF_STX instruction with BPF_ATOMIC
and BPF_FETCH, the src register (or r0 for BPF_CMPXCHG) also acts as
a destination, thus receiving the old value from the memory location.
The current backtracking logic does not account for this. It treats
atomic fetch operations the same as regular stores where the src
register is only an input. This leads the backtrack_insn to fail to
propagate precision to the stack location, which is then not marked
as precise!
Later, the verifier's path pruning can incorrectly consider two states
equivalent when they differ in terms of stack state. Meaning, two
branches can be treated as equivalent and thus get pruned when they
should not be seen as such.
Fix it as follows: Extend the BPF_LDX handling in backtrack_insn to
also cover atomic fetch operations via is_atomic_fetch_insn() helper.
When the fetch dst register is being tracked for precision, clear it,
and propagate precision over to the stack slot. For non-stack memory,
the precision walk stops at the atomic instruction, same as regular
BPF_LDX. This covers all fetch variants.
Merge tag 'net-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"With fixes from wireless, bluetooth and netfilter included we're back
to each PR carrying 30%+ more fixes than in previous era.
The good news is that so far none of the "extra" fixes are themselves
causing real regressions. Not sure how much comfort that is.
Current release - fix to a fix:
- netdevsim: fix build if SKB_EXTENSIONS=n
- eth: stmmac: skip VLAN restore when VLAN hash ops are missing
Previous releases - regressions:
- wifi: iwlwifi: mvm: don't send a 6E related command when
not supported
Previous releases - always broken:
- some info leak fixes
- add missing clearing of skb->cb[] on ICMP paths from tunnels
- ipv6:
- flowlabel: defer exclusive option free until RCU teardown
- avoid overflows in ip6_datagram_send_ctl()
- mpls: add seqcount to protect platform_labels from OOB access
- bridge: improve safety of parsing ND options
- bluetooth: fix leaks, overflows and races in hci_sync
- netfilter: add more input validation, some to address bugs directly
some to prevent exploits from cooking up broken configurations
- wifi:
- ath: avoid poor performance due to stopping the wrong
aggregation session
- virt_wifi: remove SET_NETDEV_DEV to avoid use-after-free
- eth:
- fec: fix the PTP periodic output sysfs interface
- enetc: safely reinitialize TX BD ring when it has unsent frames"
* tag 'net-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (95 commits)
eth: fbnic: Increase FBNIC_QUEUE_SIZE_MIN to 64
ipv6: avoid overflows in ip6_datagram_send_ctl()
net: hsr: fix VLAN add unwind on slave errors
net: hsr: serialize seq_blocks merge across nodes
vsock: initialize child_ns_mode_locked in vsock_net_init()
selftests/tc-testing: add tests for cls_fw and cls_flow on shared blocks
net/sched: cls_flow: fix NULL pointer dereference on shared blocks
net/sched: cls_fw: fix NULL pointer dereference on shared blocks
net/x25: Fix overflow when accumulating packets
net/x25: Fix potential double free of skb
bnxt_en: Restore default stat ctxs for ULP when resource is available
bnxt_en: Don't assume XDP is never enabled in bnxt_init_dflt_ring_mode()
bnxt_en: Refactor some basic ring setup and adjustment logic
net/mlx5: Fix switchdev mode rollback in case of failure
net/mlx5: Avoid "No data available" when FW version queries fail
net/mlx5: lag: Check for LAG device before creating debugfs
net: macb: properly unregister fixed rate clocks
net: macb: fix clk handling on PCI glue driver removal
virtio_net: clamp rss_max_key_size to NETDEV_RSS_KEY_LEN
net/sched: sch_netem: fix out-of-bounds access in packet corruption
...
Merge tag 'iommu-fixes-v7.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu fixes from Joerg Roedel:
- IOMMU-PT related compile breakage in for AMD driver
- IOTLB flushing behavior when unmapped region is larger than requested
due to page-sizes
- Fix IOTLB flush behavior with empty gathers
* tag 'iommu-fixes-v7.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
iommupt/amdv1: mark amdv1pt_install_leaf_entry as __always_inline
iommupt: Fix short gather if the unmap goes into a large mapping
iommu: Do not call drivers for empty gathers
bpf: Reject sleepable kprobe_multi programs at attach time
kprobe.multi programs run in atomic/RCU context and cannot sleep.
However, bpf_kprobe_multi_link_attach() did not validate whether the
program being attached had the sleepable flag set, allowing sleepable
helpers such as bpf_copy_from_user() to be invoked from a non-sleepable
context.
This causes a "sleeping function called from invalid context" splat:
BUG: sleeping function called from invalid context at ./include/linux/uaccess.h:169
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1787, name: sudo
preempt_count: 1, expected: 0
RCU nest depth: 2, expected: 0
Fix this by rejecting sleepable programs early in
bpf_kprobe_multi_link_attach(), before any further processing.
Fixes: 0dcac2725406 ("bpf: Add multi kprobe link") Signed-off-by: Varun R Mallya <varunrmallya@gmail.com> Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Acked-by: Leon Hwang <leon.hwang@linux.dev> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20260401191126.440683-1-varunrmallya@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Merge tag 'sound-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"People have been so busy for hunting and we're still getting more
changes than wished for, but it doesn't look too scary; almost all
changes are device-specific small fixes.
I guess it's rather a casual bump, and no more Easter eggs are left
for 7.0 (hopefully)...
- Fixes for the recent regression on ctxfi driver
- Fix missing INIT_LIST_HEAD() for ASoC card_aux_list
- Usual HD- and USB-audio, and ASoC AMD quirk updates
- ASoC fixes for AMD and Intel"
* tag 'sound-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (24 commits)
ASoC: amd: ps: Fix missing leading zeros in subsystem_device SSID log
ALSA: usb-audio: Exclude Scarlett 2i2 1st Gen (8016) from SKIP_IFACE_SETUP
ALSA: hda/realtek: add quirk for Acer Swift SFG14-73
ALSA: hda/realtek: Add quirk for Lenovo Yoga Pro 7 14IMH9
ASoC: Intel: boards: fix unmet dependency on PINCTRL
ASoC: Intel: ehl_rt5660: Use the correct rtd->dev device in hw_params
ALSA: ctxfi: Don't enumerate SPDIF1 at DAIO initialization
ALSA: hda/realtek: Add quirk for Lenovo Yoga Slim 7 14AKP10
ALSA: hda/realtek: add quirk for HP Laptop 15-fc0xxx
ASoC: ep93xx: Fix unchecked clk_prepare_enable() and add rollback on failure
ASoC: soc-core: call missing INIT_LIST_HEAD() for card_aux_list
ALSA: hda/realtek: Add quirk for Samsung Book2 Pro 360 (NP950QED)
ASoC: amd: yc: Add DMI entry for HP Laptop 15-fc0xxx
ASoC: amd: yc: Add DMI quirk for ASUS Vivobook Pro 16X OLED M7601RM
ALSA: hda/realtek: Add quirk for ASUS ROG Strix SCAR 15
ALSA: usb-audio: Exclude Scarlett Solo 1st Gen from SKIP_IFACE_SETUP
ALSA: caiaq: fix stack out-of-bounds read in init_card
ALSA: ctxfi: Check the error for index mapping
ALSA: ctxfi: Fix missing SPDIFI1 index handling
ALSA: hda/realtek: add quirk for HP Victus 15-fb0xxx
...
Merge tag 'auxdisplay-v7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-auxdisplay
Pull auxdisplay fixes from Andy Shevchenko:
- Fix NULL dereference in linedisp_release()
- Fix ht16k33 DT bindings to avoid warnings
- Handle errors in I²C transfers in lcd2s driver
* tag 'auxdisplay-v7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-auxdisplay:
auxdisplay: line-display: fix NULL dereference in linedisp_release
auxdisplay: lcd2s: add error handling for i2c transfers
dt-bindings: auxdisplay: ht16k33: Use unevaluatedProperties to fix common property warning
On systems with 64K pages, RX queues will be wedged if users set the
descriptor count to the current minimum (16). Fbnic fragments large
pages into 4K chunks, and scales down the ring size accordingly. With
64K pages and 16 descriptors, the ring size mask is 0 and will never
be filled.
32 descriptors is another special case that wedges the RX rings.
Internally, the rings track pages for the head/tail pointers, not page
fragments. So with 32 descriptors, there's only 1 usable page as one
ring slot is kept empty to disambiguate between an empty/full ring.
As a result, the head pointer never advances and the HW stalls after
consuming 16 page fragments.
Eric Dumazet [Wed, 1 Apr 2026 15:47:21 +0000 (15:47 +0000)]
ipv6: avoid overflows in ip6_datagram_send_ctl()
Yiming Qian reported :
<quote>
I believe I found a locally triggerable kernel bug in the IPv6 sendmsg
ancillary-data path that can panic the kernel via `skb_under_panic()`
(local DoS).
The core issue is a mismatch between:
- a 16-bit length accumulator (`struct ipv6_txoptions::opt_flen`, type
`__u16`) and
- a pointer to the *last* provided destination-options header (`opt->dst1opt`)
when multiple `IPV6_DSTOPTS` control messages (cmsgs) are provided.
- `include/net/ipv6.h`:
- `struct ipv6_txoptions::opt_flen` is `__u16` (wrap possible).
(lines 291-307, especially 298)
- `net/ipv6/datagram.c:ip6_datagram_send_ctl()`:
- Accepts repeated `IPV6_DSTOPTS` and accumulates into `opt_flen`
without rejecting duplicates. (lines 909-933)
- `net/ipv6/ip6_output.c:__ip6_append_data()`:
- Uses `opt->opt_flen + opt->opt_nflen` to compute header
sizes/headroom decisions. (lines 1448-1466, especially 1463-1465)
- `net/ipv6/ip6_output.c:__ip6_make_skb()`:
- Calls `ipv6_push_frag_opts()` if `opt->opt_flen` is non-zero.
(lines 1930-1934)
- `net/ipv6/exthdrs.c:ipv6_push_frag_opts()` / `ipv6_push_exthdr()`:
- Push size comes from `ipv6_optlen(opt->dst1opt)` (based on the
pointed-to header). (lines 1179-1185 and 1206-1211)
1. `opt_flen` is a 16-bit accumulator:
- `include/net/ipv6.h:298` defines `__u16 opt_flen; /* after fragment hdr */`.
2. `ip6_datagram_send_ctl()` accepts *repeated* `IPV6_DSTOPTS` cmsgs
and increments `opt_flen` each time:
- In `net/ipv6/datagram.c:909-933`, for `IPV6_DSTOPTS`:
- It computes `len = ((hdr->hdrlen + 1) << 3);`
- It checks `CAP_NET_RAW` using `ns_capable(net->user_ns,
CAP_NET_RAW)`. (line 922)
- Then it does:
- `opt->opt_flen += len;` (line 927)
- `opt->dst1opt = hdr;` (line 928)
There is no duplicate rejection here (unlike the legacy
`IPV6_2292DSTOPTS` path which rejects duplicates at
`net/ipv6/datagram.c:901-904`).
If enough large `IPV6_DSTOPTS` cmsgs are provided, `opt_flen` wraps
while `dst1opt` still points to a large (2048-byte)
destination-options header.
In the attached PoC (`poc.c`):
- 32 cmsgs with `hdrlen=255` => `len = (255+1)*8 = 2048`
- 1 cmsg with `hdrlen=0` => `len = 8`
- Total increment: `32*2048 + 8 = 65544`, so `(__u16)opt_flen == 8`
- The last cmsg is 2048 bytes, so `dst1opt` points to a 2048-byte header.
3. The transmit path sizes headers using the wrapped `opt_flen`:
- The `IPV6_DSTOPTS` cmsg path requires `CAP_NET_RAW` in the target
netns user namespace (`ns_capable(net->user_ns, CAP_NET_RAW)`).
- Root (or any task with `CAP_NET_RAW`) can trigger this without user
namespaces.
- An unprivileged `uid=1000` user can trigger this if unprivileged
user namespaces are enabled and it can create a userns+netns to obtain
namespaced `CAP_NET_RAW` (the attached PoC does this).
- Local denial of service: kernel BUG/panic (system crash).
- Reproducible with a small userspace PoC.
</quote>
This patch does not reject duplicated options, as this might break
some user applications.
Instead, it makes sure to adjust opt_flen and opt_nflen to correctly
reflect the size of the current option headers, preventing the overflows
and the potential for panics.
This applies to IPV6_DSTOPTS, IPV6_HOPOPTS, and IPV6_RTHDR.
Specifically:
When a new IPV6_DSTOPTS is processed, the length of the old opt->dst1opt
is subtracted from opt->opt_flen before adding the new length.
When a new IPV6_HOPOPTS is processed, the length of the old opt->dst0opt
is subtracted from opt->opt_nflen.
When a new Routing Header (IPV6_RTHDR or IPV6_2292RTHDR) is processed,
the length of the old opt->srcrt is subtracted from opt->opt_nflen.
In the special case within IPV6_2292RTHDR handling where dst1opt is moved
to dst0opt, the length of the old opt->dst0opt is subtracted from
opt->opt_nflen before the new one is added.
Fixes: 333fad5364d6 ("[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).") Reported-by: Yiming Qian <yimingqian591@gmail.com> Closes: https://lore.kernel.org/netdev/CAL_bE8JNzawgr5OX5m+3jnQDHry2XxhQT5=jThW1zDPtUikRYA@mail.gmail.com/ Signed-off-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20260401154721.3740056-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
====================
net: hsr: fixes for PRP duplication and VLAN unwind
This series addresses two logic bugs in the HSR/PRP implementation
identified during a protocol audit. These are targeted for the 'net'
tree as they fix potential memory corruption and state inconsistency.
The primary change resolves a race condition in the node merging path by
implementing address-based lock ordering. This ensures that concurrent
mutations of sequence blocks do not lead to state corruption or
deadlocks.
An additional fix corrects asymmetric VLAN error unwinding by
implementing a centralized unwind path on slave errors.
====================
Luka Gejak [Wed, 1 Apr 2026 09:22:43 +0000 (11:22 +0200)]
net: hsr: fix VLAN add unwind on slave errors
When vlan_vid_add() fails for a secondary slave, the error path calls
vlan_vid_del() on the failing port instead of the peer slave that had
already succeeded. This results in asymmetric VLAN state across the HSR
pair.
Fix this by switching to a centralized unwind path that removes the VID
from any slave device that was already programmed.
Luka Gejak [Wed, 1 Apr 2026 09:22:42 +0000 (11:22 +0200)]
net: hsr: serialize seq_blocks merge across nodes
During node merging, hsr_handle_sup_frame() walks node_curr->seq_blocks
to update node_real without holding node_curr->seq_out_lock. This
allows concurrent mutations from duplicate registration paths, risking
inconsistent state or XArray/bitmap corruption.
Fix this by locking both nodes' seq_out_lock during the merge.
To prevent ABBA deadlocks, locks are acquired in order of memory
address.
Reviewed-by: Felix Maurer <fmaurer@redhat.com> Fixes: 415e6367512b ("hsr: Implement more robust duplicate discard for PRP") Signed-off-by: Luka Gejak <luka.gejak@linux.dev> Link: https://patch.msgid.link/20260401092243.52121-2-luka.gejak@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
vsock: initialize child_ns_mode_locked in vsock_net_init()
The `child_ns_mode_locked` field lives in `struct net`, which persists
across vsock module reloads. When the module is unloaded and reloaded,
`vsock_net_init()` resets `mode` and `child_ns_mode` back to their
default values, but does not reset `child_ns_mode_locked`.
The stale lock from the previous module load causes subsequent writes
to `child_ns_mode` to silently fail: `vsock_net_set_child_mode()` sees
the old lock, skips updating the actual value, and returns success
when the requested mode matches the stale lock. The sysctl handler
reports no error, but `child_ns_mode` remains unchanged.
Steps to reproduce:
$ modprobe vsock
$ echo local > /proc/sys/net/vsock/child_ns_mode
$ cat /proc/sys/net/vsock/child_ns_mode
local
$ modprobe -r vsock
$ modprobe vsock
$ echo local > /proc/sys/net/vsock/child_ns_mode
$ cat /proc/sys/net/vsock/child_ns_mode
global <--- expected "local"
Fix this by initializing `child_ns_mode_locked` to 0 (unlocked) in
`vsock_net_init()`, so the write-once mechanism works correctly after
module reload.
Fixes: 102eab95f025 ("vsock: lock down child_ns_mode as write-once") Reported-by: Jin Liu <jinl@redhat.com> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Bobby Eshleman <bobbyeshleman@meta.com> Link: https://patch.msgid.link/20260401092153.28462-1-sgarzare@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Ivan Vera [Fri, 27 Mar 2026 13:16:45 +0000 (13:16 +0000)]
nvmem: zynqmp_nvmem: Fix buffer size in DMA and memcpy
Buffer size used in dma allocation and memcpy is wrong.
It can lead to undersized DMA buffer access and possible
memory corruption. use correct buffer size in dma_alloc_coherent
and memcpy.
Fixes: 737c0c8d07b5 ("nvmem: zynqmp_nvmem: Add support to access efuse") Cc: stable@vger.kernel.org Signed-off-by: Ivan Vera <ivanverasantos@gmail.com> Signed-off-by: Harish Ediga <harish.ediga@amd.com> Signed-off-by: Harsh Jain <h.jain@amd.com> Signed-off-by: Srinivas Kandagatla <srini@kernel.org> Link: https://patch.msgid.link/20260327131645.3025781-3-srini@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michal Pecio [Thu, 2 Apr 2026 13:13:42 +0000 (16:13 +0300)]
usb: xhci: Make usb_host_endpoint.hcpriv survive endpoint_disable()
xHCI hardware maintains its endpoint state between add_endpoint()
and drop_endpoint() calls followed by successful check_bandwidth().
So does the driver.
Core may call endpoint_disable() during xHCI endpoint life, so don't
clear host_ep->hcpriv then, because this breaks endpoint_reset().
If a driver calls usb_set_interface(), submits URBs which make host
sequence state non-zero and calls usb_clear_halt(), the device clears
its sequence state but xhci_endpoint_reset() bails out. The next URB
malfunctions: USB2 loses one packet, USB3 gets Transaction Error or
may not complete at all on some (buggy?) HCs from ASMedia and AMD.
This is triggered by uvcvideo on bulk video devices.
The code was copied from ehci_endpoint_disable() but it isn't needed
here - hcpriv should only be NULL on emulated root hub endpoints.
It might prevent resetting and inadvertently enabling a disabled and
dropped endpoint, but core shouldn't try to reset dropped endpoints.
Document xhci requirements regarding hcpriv. They are currently met.
Resume roothubs without checking 'retval' value, as it is always '0'.
Due to changes made in commit 79989bd4ab86 ("xhci: always resume roothubs
if xHC was reset during resume") the check is redundant.
Improve readability of xhci_hub_report_usb3_link_state().
Comments are shortened and clarified, and the code now makes it explicit
when the Port Link State (PLS) value is modified versus when other status
bits are updated.
usb: xhci: rename parameter to match argument 'portsc'
A previous patch renamed the temporary variable holding the value read
from the PORTSC register from 'temp' to 'portsc'. This patch follows up
by updating the parameter names of all helper functions called from
xhci_hub_control() that receive a PORTSC value, as well as the functions
they call.
Function changed:
xhci_get_port_status()
L xhci_get_usb3_port_status()
L xhci_hub_report_usb3_link_state()
L xhci_del_comp_mod_timer()
xhci_get_ext_port_status()
xhci_port_state_to_neutral()
xhci_clear_port_change_bit()
xhci_port_speed()
The reason for the rename is to differentiate between port
status/change bit to be written to PORTSC and replying to hub-class
USB requests. Each of them use their specific macros.
Use "portsc" name for PORTSC values and "status" for values intended
for replying to hub-class USB request.
A dedicated structure for USB hub port status responses
('struct usb_port_status' from ch11.h) exists and will be integrated in
a later patch.
usb: xhci: add PORTSC variable to xhci_hub_control()
The variable 'temp' is used multiple times throughout xhci_hub_control()
for holding only PORTSC register values.
As a follow-up to introducing a dedicated variable for PORTPMSC, rename
all remaining 'temp' to 'portsc'. This improves readability and clarifies
what is being modified.
usb: xhci: add PORTPMSC variable to xhci_hub_control()
The code handling U1/U2 timeout updates reads and modifies the PORTPMSC
register using the generic 'temp' variable, which is also used for
PORTSC. This makes the code hard to read and increases the risk of mixing
up register contents.
Introduce a dedicated 'portpmsc' variable for PORTPMSC accesses and use
it in both U1 and U2 timeout handlers. This makes the intent clearer and
keeps register operations logically separated.
usb: xhci: separate use of USB Chapter 11 PLS macros from xHCI-specific PLS macros
The xhci driver uses two different sources for Port Link State (PLS):
1. The PLS field in the PORTSC register (bits 8:5).
2. The PLS value encoded in bits 15:8 of the USB request wIndex,
received by xhci_hub_control().
While both represent similar link states, they differ in a few details,
for example, xHCI's Resume State. Because of these differences, the xhci
driver defines its own set of PLS macros in xhci-port.h, which are intended
to be used when reading and writing PORTSC. The generic USB Chapter 11
macros in ch11.h should only be used when parsing or replying to hub-class
USB requests.
To avoid mixing these two representations and prevent incorrect state
reporting, replace all uses of Chapter 11 PLS macros with the xHCI
versions when interacting with the PORTSC register.
usb: xhci: clean up 'wValue' handling in xhci_hub_control()
Several hub control requests encode a descriptor type in the upper byte
of 'wValue'. Clean this up by extracting the descriptor type into a local
variable and using it for all relevant requests.
Replace magic value (0x02) with the appropriate macro (HUB_EXT_PORT_STATUS)
This improves readability and makes the handling of 'wValue' consistent.
usb: xhci: clean up handling of upper bits in SetPortFeature wIndex
In Set Port Feature requests, the upper byte of 'wIndex' encodes
feature-specific parameters. The current code reads these upper bits in
an early pre-processing block, and then the same feature is handled again
later in the main switch statement. This results in duplicated condition
checks and makes the control flow harder to follow.
Move all feature-specific extraction of 'wIndex' upper bits into the
main SetPortFeature logic so that each feature is handled in exactly one
place. This reduces duplication, makes the handling clearer, and keeps
'wIndex' parsing local to the code that actually uses the values.
usb: xhci: rename 'wIndex' parameters to 'portnum'
Several helper functions take a parameter named 'wIndex', but the
value they receive is not the raw USB request wIndex field. The only
function that actually processes the USB hub request parameter is
xhci_hub_control(), which extracts the relevant port number (and other
upper-byte fields) before passing them down.
To avoid confusion between the USB request parameter and the derived
0-based port index, rename all such function parameters from 'wIndex'
to 'portnum'. This improves readability and makes the call intentions
clearer.
When a function accept struct 'xhci_port' pointer, use its port number
instead.
usb: xhci: stop treating 'wIndex' as a mutable port number
The USB request parameter 'wIndex' is a 16-bit field whose meaning depends
on the request type. For hub port operations, only bits 7:0 encode the port
number (1..MaxPorts). Despite this, the current code extracts the port
number into 'portnum1' while also modifying and using 'wIndex' directly as
a 0-based port index. This dual use is both confusing and error-prone,
since 'wIndex' is not always a pure port number.
Clean this up by deriving a single 0-based 'portnum' from 'wIndex' and
using it throughout the function. The original 'wIndex' value is no longer
modified or treated as a port number. This also matches existing xhci code.
usb: xhci: optimize resuming from S4 (suspend-to-disk)
On resume from S4 (power loss after suspend/hibernation), the xHCI
driver previously freed, reallocated, and fully reinitialized all
data structures. Most of this is unnecessary because the data is
restored from a saved image; only the xHCI registers lose their values.
This patch optimizes S4 resume by performing only a host controller
reset, which includes:
* Freeing or clearing runtime-created data.
* Rewriting xHCI registers.
Improve debug output for suspend failures, particularly when the controller
handshake does not complete. This will become important as upcoming patches
significantly rework the resume path, making more detailed suspend-side
messages valuable for debugging.
Add an explicit check of the Save/Restore Error (SRE) flag after a
successful Save State (CSS) operation. The xHCI specification
(note in section 4.23.2) states:
"After a Save or Restore State operation completes, the
Save/Restore Error (SRE) flag in USBSTS should be checked to
ensure the operation completed successfully."
Currently, the SRE error is only observed and warning is printed.
This patch does not introduce deeper error handling, as the correct
response is unclear and changes to suspend behavior may risk regressions
once the resume path is updated.
Additionally, simplify and clean up the suspend USBSTS CSS/SSS
handling code, improving readability and quirk handling for AMD
SNPS xHC controllers that occasionally do not clear the SSS bit.
usb: xhci: split core allocation and initialization
Separate allocation and initialization in the xHCI core:
* xhci_mem_init() now only handles memory allocation.
* xhci_init() now only handles initialization.
This split allows xhci_init() to be reused when resuming from S4
suspend-to-disk.
usb: xhci: move initialization for lifetime objects
Initialize objects that exist for the lifetime of the driver only once,
rather than repeatedly. These objects do not require re-initialization
after events such as S4 (suspend-to-disk).
Move ring initialization from xhci_ring_alloc() to xhci_ring_init().
Call xhci_ring_init() after xhci_ring_alloc(); in the future,
it can also be used to re-initialize the ring during resume.
Additionally, remove xhci_dbg_trace() from xhci_mem_init(). The command
ring's first segment DMA address is now printed during the trace call in
xhci_ring_init().
This refactoring lays also the groundwork for eventually replacing:
* xhci_dbc_ring_init()
* xhci_clear_command_ring()
Introduce xhci_rh_bw_cleanup() to release all bandwidth tracking
structures associated with xHCI roothub ports.
The new helper clears:
* TT bandwidth entries
* Per-interval endpoint lists
This refactors and consolidates the existing per-port cleanup logic
previously embedded in xhci_mem_cleanup(), reducing duplication and
making the teardown sequence easier to follow.
The helper will also be reused for upcoming S4 resume handling.
A Restore Error or Host Controller Error indicates that the host controller
failed to resume after suspend. In such cases, the xhci driver is fully
re-initialized, similar to a post-hibernation scenario.
The existing error check is only relevant when 'power_lost' is false.
If 'power_lost' is true, a Restore or Controller error has no effect:
no warning is printed and the 'power_lost' state remains unchanged.
Move the entire error check into the if '!power_lost' condition
to make this dependency explicit and simplify the resume logic.
The function compliance_mode_recovery_timer_init() is called from
xhci_init() because the Compliance Mode Recovery Timer (CMRT) must be set
up before xhci_run() when the xhci driver is re-initialized.
To handle this case, the boolean flag 'comp_timer_running' was introduced
to track whether xhci_run() had already been called, ensuring that
xhci_resume() would not invoke compliance_mode_recovery_timer_init()
a second time.
This can be simplified by moving the 'done' label in xhci_resume() to
after the compliance_mode_recovery_timer_init() call. With this change,
the timer initialization runs only when the xhci driver has not been
re-initialized, making the 'comp_timer_running' flag unnecessary and
allowing it to be removed.
Michal Pecio [Thu, 2 Apr 2026 13:13:20 +0000 (16:13 +0300)]
usb: xhci: Fix debugfs bandwidth reporting
Replace kernel USB speed numbers with xHCI protocol IDs expected by HW.
They are numerically equal up to high speed, but instead of SuperSpeed
we were querying SuperSpeed+.
Gen1 hardware rejects such commands with TRB Error, which resulted in
zero available bandwidth being shown.
While at that, report failures properly. No attempt made at "tunneling"
all possible comp codes through errno, debugfs users may inspect the
result through event-ring/trbs.
Michal Pecio [Thu, 2 Apr 2026 13:13:19 +0000 (16:13 +0300)]
usb: xhci: Simplify clearing the Event Interrupt bit
USBSTS is mostly RW1C, so to clear EINT we should write just this
one bit. Remove pointless code which ORs the bit with current value
of the register, even though the bit is already known to be set,
and writes the result back, which clears all active RW1C flags.
We used to inadvertently clear PCD and SRE in this way. PCD isn't
used by the driver and SRE is only used at resume, so clearing them
should make no difference. Don't clear them anymore.
Tested by connecting and mounting a storage device on a few HCs.
projects / thirdparty / linux.git / log
