In the Linux kernel, the following vulnerability has been resolved:
drm/mediatek: Add error handling for old state CRTC in atomic_disable
Introduce error handling to address an issue where, after a hotplug event, the cursor continues to update. This situation can lead to a kernel panic due to accessing the NULL `old_state->crtc`.
E,g. Unable to handle kernel NULL pointer dereference at virtual address Call trace: mtk_crtc_plane_disable+0x24/0x140 mtk_plane_atomic_update+0x8c/0xa8 drm_atomic_helper_commit_planes+0x114/0x2c8 drm_atomic_helper_commit_tail_rpm+0x4c/0x158 commit_tail+0xa0/0x168 drm_atomic_helper_commit+0x110/0x120 drm_atomic_commit+0x8c/0xe0 drm_atomic_helper_update_plane+0xd4/0x128 __setplane_atomic+0xcc/0x110 drm_mode_cursor_common+0x250/0x440 drm_mode_cursor_ioctl+0x44/0x70 drm_ioctl+0x264/0x5d8 __arm64_sys_ioctl+0xd8/0x510 invoke_syscall+0x6c/0xe0 do_el0_svc+0x68/0xe8 el0_svc+0x34/0x60 el0t_64_sync_handler+0x1c/0xf8 el0t_64_sync+0x180/0x188
Adding NULL pointer checks to ensure stability by preventing operations on an invalid CRTC state.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Suse | — | Upgrade kernel-default-optionalUpgrade kernel-default-vdsoUpgrade kernel-devel-azureUpgrade kernel-rt-develUpgrade dtb-qcomUpgrade dtb-rockchipUpgrade dtb-sprdUpgrade kernel-rt-livepatchUpgrade kernel-syms-azureUpgrade cluster-md-kmp-64kbUpgrade dtb-mediatekUpgrade dtb-nvidiaUpgrade kernel-obs-buildUpgrade kernel-rtUpgrade dtb-apmUpgrade kernel-obs-qaUpgrade cluster-md-kmp-rtUpgrade kernel-macrosUpgrade dtb-armUpgrade dtb-xilinxUpgrade dlm-kmp-rtUpgrade cluster-md-kmp-defaultUpgrade kernel-default-extraUpgrade ocfs2-kmp-defaultUpgrade kselftests-kmp-rtUpgrade kernel-develUpgrade kernel-symsUpgrade kernel-64kb-extraUpgrade kernel-docsUpgrade dtb-allwinnerUpgrade kselftests-kmp-defaultUpgrade kernel-rt-extraUpgrade kernel-azure-develUpgrade kernel-defaultUpgrade kernel-64kb-develUpgrade kernel-kvmsmallUpgrade dtb-appleUpgrade dtb-hisiliconUpgrade kernel-rt-livepatch-develUpgrade kernel-sourceUpgrade kernel-rt-vdsoUpgrade kernel-kvmsmall-vdsoUpgrade kernel-default-livepatch-develUpgrade kernel-64kb-optionalUpgrade dtb-renesasUpgrade ocfs2-kmp-64kbUpgrade dtb-amdUpgrade kernel-source-azureUpgrade dtb-exynosUpgrade dtb-caviumUpgrade dtb-alteraUpgrade dlm-kmp-64kbUpgrade kernel-kvmsmall-develUpgrade kernel-zfcpdumpUpgrade kernel-default-baseUpgrade kernel-64kbUpgrade gfs2-kmp-defaultUpgrade dtb-amazonUpgrade kernel-default-develUpgrade gfs2-kmp-rtUpgrade dtb-amlogicUpgrade gfs2-kmp-64kbUpgrade dtb-broadcomUpgrade dlm-kmp-defaultUpgrade ocfs2-kmp-rtUpgrade kernel-docs-htmlUpgrade kernel-azureUpgrade dtb-freescaleUpgrade dtb-lgUpgrade dtb-socionextUpgrade dtb-marvellUpgrade kselftests-kmp-64kbUpgrade kernel-default-livepatchUpgrade reiserfs-kmp-defaultUpgrade kernel-source-vanillaUpgrade kernel-rt-optional | Dec 5, 2025 | Oct 15, 2025 |
| Ubuntu | — | Upgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-awsUpgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-gcp-fipsUpgrade linux-image-aws-fips-6.8Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-gcp-6.8Upgrade linux-image-ibm-6.8Upgrade linux-image-oem-22.04bUpgrade linux-image-oracleUpgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-azure-fipsUpgrade linux-image-virtual-6.8Upgrade linux-image-aws-64k-6.8Upgrade linux-image-6.8.0-1050-awsUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-ibm-classicUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-azure-lts-24.04Upgrade linux-image-generic-64k-6.8Upgrade linux-image-lowlatency-6.8Upgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-realtimeUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-kvmUpgrade linux-image-fips-6.8Upgrade linux-image-gke-64kUpgrade linux-image-aws-lts-24.04Upgrade linux-image-oem-22.04dUpgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-aws-fipsUpgrade linux-image-generic-6.8Upgrade linux-image-gkeop-6.8Upgrade linux-image-raspiUpgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-realtime-6.8.1Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-ibmUpgrade linux-image-oem-22.04aUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-6.8.0-1051-azureUpgrade linux-image-generic-64kUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-raspi-realtimeUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-intel-iotgUpgrade linux-image-generic-lpaeUpgrade linux-image-aws-64kUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-virtualUpgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-raspi-6.8Upgrade linux-image-aws-6.8Upgrade linux-image-oem-22.04cUpgrade linux-image-nvidia-64kUpgrade linux-image-gkeopUpgrade linux-image-gke-64k-6.8Upgrade linux-image-oem-22.04Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-azureUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-xilinxUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-fipsUpgrade linux-image-lowlatencyUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-oracle-6.8Upgrade linux-image-xilinx-6.8Upgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-gke-6.8Upgrade linux-image-gkeUpgrade linux-image-gcp-64kUpgrade linux-image-gcpUpgrade linux-image-azure-fips-6.8Upgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-nvidiaUpgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-genericUpgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oracle-64kUpgrade linux-image-nvidia-6.8Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-azure-6.8Upgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-lowlatency-64kUpgrade linux-image-lowlatency-64k-hwe-22.04 | Mar 17, 2026 | Sep 16, 2025 |
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