--- /dev/null
+From 8f067aa59430266386b83c18b983ca583faa6a11 Mon Sep 17 00:00:00 2001
+From: Yuhao Jiang <danisjiang@gmail.com>
+Date: Wed, 22 Oct 2025 15:07:04 -0500
+Subject: ACPI: video: Fix use-after-free in acpi_video_switch_brightness()
+
+From: Yuhao Jiang <danisjiang@gmail.com>
+
+commit 8f067aa59430266386b83c18b983ca583faa6a11 upstream.
+
+The switch_brightness_work delayed work accesses device->brightness
+and device->backlight, freed by acpi_video_dev_unregister_backlight()
+during device removal.
+
+If the work executes after acpi_video_bus_unregister_backlight()
+frees these resources, it causes a use-after-free when
+acpi_video_switch_brightness() dereferences device->brightness or
+device->backlight.
+
+Fix this by calling cancel_delayed_work_sync() for each device's
+switch_brightness_work in acpi_video_bus_remove_notify_handler()
+after removing the notify handler that queues the work. This ensures
+the work completes before the memory is freed.
+
+Fixes: 8ab58e8e7e097 ("ACPI / video: Fix backlight taking 2 steps on a brightness up/down keypress")
+Cc: All applicable <stable@vger.kernel.org>
+Signed-off-by: Yuhao Jiang <danisjiang@gmail.com>
+Reviewed-by: Hans de Goede <hansg@kernel.org>
+[ rjw: Changelog edit ]
+Link: https://patch.msgid.link/20251022200704.2655507-1-danisjiang@gmail.com
+Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/acpi/acpi_video.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/acpi/acpi_video.c
++++ b/drivers/acpi/acpi_video.c
+@@ -2024,8 +2024,10 @@ static void acpi_video_bus_remove_notify
+ struct acpi_video_device *dev;
+
+ mutex_lock(&video->device_list_lock);
+- list_for_each_entry(dev, &video->video_device_list, entry)
++ list_for_each_entry(dev, &video->video_device_list, entry) {
+ acpi_video_dev_remove_notify_handler(dev);
++ cancel_delayed_work_sync(&dev->switch_brightness_work);
++ }
+ mutex_unlock(&video->device_list_lock);
+
+ acpi_video_bus_stop_devices(video);
--- /dev/null
+From 7073c7fc8d8ba47194e5fc58fcafc0efe7586e9b Mon Sep 17 00:00:00 2001
+From: Daniel Palmer <daniel@0x0f.com>
+Date: Fri, 24 Oct 2025 18:37:15 +0900
+Subject: fbdev: atyfb: Check if pll_ops->init_pll failed
+
+From: Daniel Palmer <daniel@0x0f.com>
+
+commit 7073c7fc8d8ba47194e5fc58fcafc0efe7586e9b upstream.
+
+Actually check the return value from pll_ops->init_pll()
+as it can return an error.
+
+If the card's BIOS didn't run because it's not the primary VGA card
+the fact that the xclk source is unsupported is printed as shown
+below but the driver continues on regardless and on my machine causes
+a hard lock up.
+
+[ 61.470088] atyfb 0000:03:05.0: enabling device (0080 -> 0083)
+[ 61.476191] atyfb: using auxiliary register aperture
+[ 61.481239] atyfb: 3D RAGE XL (Mach64 GR, PCI-33) [0x4752 rev 0x27]
+[ 61.487569] atyfb: 512K SGRAM (1:1), 14.31818 MHz XTAL, 230 MHz PLL, 83 Mhz MCLK, 63 MHz XCLK
+[ 61.496112] atyfb: Unsupported xclk source: 5.
+
+Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
+Signed-off-by: Daniel Palmer <daniel@0x0f.com>
+Signed-off-by: Helge Deller <deller@gmx.de>
+Cc: stable@vger.kernel.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/video/fbdev/aty/atyfb_base.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+--- a/drivers/video/fbdev/aty/atyfb_base.c
++++ b/drivers/video/fbdev/aty/atyfb_base.c
+@@ -2576,8 +2576,12 @@ static int aty_init(struct fb_info *info
+ pr_cont("\n");
+ }
+ #endif
+- if (par->pll_ops->init_pll)
+- par->pll_ops->init_pll(info, &par->pll);
++ if (par->pll_ops->init_pll) {
++ ret = par->pll_ops->init_pll(info, &par->pll);
++ if (ret)
++ return ret;
++ }
++
+ if (par->pll_ops->resume_pll)
+ par->pll_ops->resume_pll(info, &par->pll);
+
--- /dev/null
+From 18c4ef4e765a798b47980555ed665d78b71aeadf Mon Sep 17 00:00:00 2001
+From: Junjie Cao <junjie.cao@intel.com>
+Date: Mon, 20 Oct 2025 21:47:01 +0800
+Subject: fbdev: bitblit: bound-check glyph index in bit_putcs*
+
+From: Junjie Cao <junjie.cao@intel.com>
+
+commit 18c4ef4e765a798b47980555ed665d78b71aeadf upstream.
+
+bit_putcs_aligned()/unaligned() derived the glyph pointer from the
+character value masked by 0xff/0x1ff, which may exceed the actual font's
+glyph count and read past the end of the built-in font array.
+Clamp the index to the actual glyph count before computing the address.
+
+This fixes a global out-of-bounds read reported by syzbot.
+
+Reported-by: syzbot+793cf822d213be1a74f2@syzkaller.appspotmail.com
+Closes: https://syzkaller.appspot.com/bug?extid=793cf822d213be1a74f2
+Tested-by: syzbot+793cf822d213be1a74f2@syzkaller.appspotmail.com
+Signed-off-by: Junjie Cao <junjie.cao@intel.com>
+Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
+Signed-off-by: Helge Deller <deller@gmx.de>
+Cc: stable@vger.kernel.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/video/fbdev/core/bitblit.c | 16 ++++++++++++----
+ 1 file changed, 12 insertions(+), 4 deletions(-)
+
+--- a/drivers/video/fbdev/core/bitblit.c
++++ b/drivers/video/fbdev/core/bitblit.c
+@@ -80,12 +80,16 @@ static inline void bit_putcs_aligned(str
+ struct fb_image *image, u8 *buf, u8 *dst)
+ {
+ u16 charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
++ unsigned int charcnt = vc->vc_font.charcount;
+ u32 idx = vc->vc_font.width >> 3;
+ u8 *src;
+
+ while (cnt--) {
+- src = vc->vc_font.data + (scr_readw(s++)&
+- charmask)*cellsize;
++ u16 ch = scr_readw(s++) & charmask;
++
++ if (ch >= charcnt)
++ ch = 0;
++ src = vc->vc_font.data + (unsigned int)ch * cellsize;
+
+ if (attr) {
+ update_attr(buf, src, attr, vc);
+@@ -113,14 +117,18 @@ static inline void bit_putcs_unaligned(s
+ u8 *dst)
+ {
+ u16 charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
++ unsigned int charcnt = vc->vc_font.charcount;
+ u32 shift_low = 0, mod = vc->vc_font.width % 8;
+ u32 shift_high = 8;
+ u32 idx = vc->vc_font.width >> 3;
+ u8 *src;
+
+ while (cnt--) {
+- src = vc->vc_font.data + (scr_readw(s++)&
+- charmask)*cellsize;
++ u16 ch = scr_readw(s++) & charmask;
++
++ if (ch >= charcnt)
++ ch = 0;
++ src = vc->vc_font.data + (unsigned int)ch * cellsize;
+
+ if (attr) {
+ update_attr(buf, src, attr, vc);
--- /dev/null
+From 5f566c0ac51cd2474e47da68dbe719d3acf7d999 Mon Sep 17 00:00:00 2001
+From: Florian Fuchs <fuchsfl@gmail.com>
+Date: Sun, 26 Oct 2025 00:38:50 +0200
+Subject: fbdev: pvr2fb: Fix leftover reference to ONCHIP_NR_DMA_CHANNELS
+
+From: Florian Fuchs <fuchsfl@gmail.com>
+
+commit 5f566c0ac51cd2474e47da68dbe719d3acf7d999 upstream.
+
+Commit e24cca19babe ("sh: Kill off MAX_DMA_ADDRESS leftovers.") removed
+the define ONCHIP_NR_DMA_CHANNELS. So that the leftover reference needs
+to be replaced by CONFIG_NR_ONCHIP_DMA_CHANNELS to compile successfully
+with CONFIG_PVR2_DMA enabled.
+
+Signed-off-by: Florian Fuchs <fuchsfl@gmail.com>
+Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
+Signed-off-by: Helge Deller <deller@gmx.de>
+Cc: stable@vger.kernel.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/video/fbdev/pvr2fb.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/video/fbdev/pvr2fb.c
++++ b/drivers/video/fbdev/pvr2fb.c
+@@ -191,7 +191,7 @@ static unsigned long pvr2fb_map;
+
+ #ifdef CONFIG_PVR2_DMA
+ static unsigned int shdma = PVR2_CASCADE_CHAN;
+-static unsigned int pvr2dma = ONCHIP_NR_DMA_CHANNELS;
++static unsigned int pvr2dma = CONFIG_NR_ONCHIP_DMA_CHANNELS;
+ #endif
+
+ static struct fb_videomode pvr2_modedb[] = {
--- /dev/null
+From eb53368f8d6e2dfba84c8a94d245719bcf9ae270 Mon Sep 17 00:00:00 2001
+From: Miaoqian Lin <linmq006@gmail.com>
+Date: Mon, 27 Oct 2025 16:43:37 +0800
+Subject: fbdev: valkyriefb: Fix reference count leak in valkyriefb_init
+
+From: Miaoqian Lin <linmq006@gmail.com>
+
+commit eb53368f8d6e2dfba84c8a94d245719bcf9ae270 upstream.
+
+The of_find_node_by_name() function returns a device tree node with its
+reference count incremented. The caller is responsible for calling
+of_node_put() to release this reference when done.
+
+Found via static analysis.
+
+Fixes: cc5d0189b9ba ("[PATCH] powerpc: Remove device_node addrs/n_addr")
+Cc: stable@vger.kernel.org
+Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
+Signed-off-by: Helge Deller <deller@gmx.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/video/fbdev/valkyriefb.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/video/fbdev/valkyriefb.c
++++ b/drivers/video/fbdev/valkyriefb.c
+@@ -336,11 +336,13 @@ int __init valkyriefb_init(void)
+
+ if (of_address_to_resource(dp, 0, &r)) {
+ printk(KERN_ERR "can't find address for valkyrie\n");
++ of_node_put(dp);
+ return 0;
+ }
+
+ frame_buffer_phys = r.start;
+ cmap_regs_phys = r.start + 0x304000;
++ of_node_put(dp);
+ }
+ #endif /* ppc (!CONFIG_MAC) */
+
--- /dev/null
+From dc89548c6926d68dfdda11bebc1a5258bc41d887 Mon Sep 17 00:00:00 2001
+From: Miaoqian Lin <linmq006@gmail.com>
+Date: Mon, 27 Oct 2025 00:43:16 +0800
+Subject: net: usb: asix_devices: Check return value of usbnet_get_endpoints
+
+From: Miaoqian Lin <linmq006@gmail.com>
+
+commit dc89548c6926d68dfdda11bebc1a5258bc41d887 upstream.
+
+The code did not check the return value of usbnet_get_endpoints.
+Add checks and return the error if it fails to transfer the error.
+
+Found via static anlaysis and this is similar to
+commit 07161b2416f7 ("sr9800: Add check for usbnet_get_endpoints").
+
+Fixes: 933a27d39e0e ("USB: asix - Add AX88178 support and many other changes")
+Fixes: 2e55cc7210fe ("[PATCH] USB: usbnet (3/9) module for ASIX Ethernet adapters")
+Cc: stable@vger.kernel.org
+Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
+Link: https://patch.msgid.link/20251026164318.57624-1-linmq006@gmail.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/usb/asix_devices.c | 12 +++++++++---
+ 1 file changed, 9 insertions(+), 3 deletions(-)
+
+--- a/drivers/net/usb/asix_devices.c
++++ b/drivers/net/usb/asix_devices.c
+@@ -230,7 +230,9 @@ static int ax88172_bind(struct usbnet *d
+ int i;
+ unsigned long gpio_bits = dev->driver_info->data;
+
+- usbnet_get_endpoints(dev,intf);
++ ret = usbnet_get_endpoints(dev, intf);
++ if (ret)
++ goto out;
+
+ /* Toggle the GPIOs in a manufacturer/model specific way */
+ for (i = 2; i >= 0; i--) {
+@@ -681,7 +683,9 @@ static int ax88772_bind(struct usbnet *d
+ u32 phyid;
+ struct asix_common_private *priv;
+
+- usbnet_get_endpoints(dev, intf);
++ ret = usbnet_get_endpoints(dev, intf);
++ if (ret)
++ return ret;
+
+ /* Maybe the boot loader passed the MAC address via device tree */
+ if (!eth_platform_get_mac_address(&dev->udev->dev, buf)) {
+@@ -1063,7 +1067,9 @@ static int ax88178_bind(struct usbnet *d
+ int ret;
+ u8 buf[ETH_ALEN] = {0};
+
+- usbnet_get_endpoints(dev,intf);
++ ret = usbnet_get_endpoints(dev, intf);
++ if (ret)
++ return ret;
+
+ /* Get the MAC address */
+ ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf, 0);
net-sched-sch_qfq-fix-null-deref-in-agg_dequeue.patch
x86-bugs-fix-reporting-of-lfence-retpoline.patch
btrfs-use-smp_mb__after_atomic-when-forcing-cow-in-c.patch
+net-usb-asix_devices-check-return-value-of-usbnet_get_endpoints.patch
+fbdev-atyfb-check-if-pll_ops-init_pll-failed.patch
+acpi-video-fix-use-after-free-in-acpi_video_switch_brightness.patch
+fbdev-bitblit-bound-check-glyph-index-in-bit_putcs.patch
+fbdev-pvr2fb-fix-leftover-reference-to-onchip_nr_dma_channels.patch
+fbdev-valkyriefb-fix-reference-count-leak-in-valkyriefb_init.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
