In the Linux kernel, the following vulnerability has been resolved:
drm/xe/guc: Explicitly exit CT safe mode on unwind
During driver probe we might be briefly using CT safe mode, which is based on a delayed work, but usually we are able to stop this once we have IRQ fully operational. However, if we abort the probe quite early then during unwind we might try to destroy the workqueue while there is still a pending delayed work that attempts to restart itself which triggers a WARN.
This was recently observed during unsuccessful VF initialization:
[ ] xe 0000:00:02.1: probe with driver xe failed with error -62 [ ] ------------[ cut here ]------------ [ ] workqueue: cannot queue safe_mode_worker_func [xe] on wq xe-g2h-wq [ ] WARNING: CPU: 9 PID: 0 at kernel/workqueue.c:2257 __queue_work+0x287/0x710 [ ] RIP: 0010:__queue_work+0x287/0x710 [ ] Call Trace: [ ] delayed_work_timer_fn+0x19/0x30 [ ] call_timer_fn+0xa1/0x2a0
Exit the CT safe mode on unwind to avoid that warning.
(cherry picked from commit 2ddbb73ec20b98e70a5200cb85deade22ccea2ec)
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 |
| Redhat_linux | — | No solution exists | Jul 31, 2025 | Jul 25, 2025 |
| Suse | — | Upgrade kernel-azureUpgrade kselftests-kmp-rtUpgrade cluster-md-kmp-64kbUpgrade kernel-rt-livepatchUpgrade kernel-develUpgrade kernel-obs-buildUpgrade dtb-rockchipUpgrade ocfs2-kmp-defaultUpgrade kernel-rt-extraUpgrade kernel-source-vanillaUpgrade gfs2-kmp-defaultUpgrade kernel-default-baseUpgrade dlm-kmp-rtUpgrade cluster-md-kmp-rtUpgrade kernel-rt-vdsoUpgrade dtb-sprdUpgrade kernel-kvmsmall-vdsoUpgrade dtb-caviumUpgrade kselftests-kmp-defaultUpgrade dtb-allwinnerUpgrade ocfs2-kmp-64kbUpgrade kernel-64kb-extraUpgrade dlm-kmp-defaultUpgrade dtb-nvidiaUpgrade kernel-defaultUpgrade kernel-rt-optionalUpgrade dtb-renesasUpgrade kernel-default-livepatch-develUpgrade reiserfs-kmp-defaultUpgrade dtb-alteraUpgrade dtb-socionextUpgrade kernel-docsUpgrade dtb-amdUpgrade kernel-default-optionalUpgrade dtb-qcomUpgrade dtb-xilinxUpgrade dtb-mediatekUpgrade dlm-kmp-64kbUpgrade kernel-default-vdsoUpgrade gfs2-kmp-64kbUpgrade dtb-amazonUpgrade kernel-default-livepatchUpgrade kernel-64kb-develUpgrade dtb-marvellUpgrade dtb-hisiliconUpgrade kernel-syms-azureUpgrade kernel-docs-htmlUpgrade kernel-rt-livepatch-develUpgrade kernel-64kbUpgrade dtb-exynosUpgrade cluster-md-kmp-defaultUpgrade kernel-zfcpdumpUpgrade kernel-rtUpgrade dtb-amlogicUpgrade kernel-sourceUpgrade dtb-apmUpgrade gfs2-kmp-rtUpgrade dtb-lgUpgrade kernel-default-develUpgrade kernel-default-extraUpgrade kernel-azure-develUpgrade kernel-source-azureUpgrade kernel-kvmsmall-develUpgrade kernel-kvmsmallUpgrade kernel-rt-develUpgrade kernel-obs-qaUpgrade kernel-macrosUpgrade dtb-freescaleUpgrade dtb-broadcomUpgrade dtb-appleUpgrade kselftests-kmp-64kbUpgrade kernel-symsUpgrade dtb-armUpgrade ocfs2-kmp-rtUpgrade kernel-devel-azureUpgrade kernel-64kb-optional | Dec 5, 2025 | Aug 18, 2025 |
| Ubuntu | — | Upgrade linux-image-6.14.0-1018-gcpUpgrade linux-image-oem-6.14Upgrade linux-image-6.14.0-1015-oracle-64kUpgrade linux-image-generic-64kUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-oem-24.04aUpgrade linux-image-genericUpgrade linux-image-6.14.0-1014-realtimeUpgrade linux-image-oracle-64k-6.14Upgrade linux-image-azure-nvidiaUpgrade linux-image-azure-nvidia-6.14Upgrade linux-image-oem-24.04bUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-virtualUpgrade linux-image-azure-6.14Upgrade linux-image-gcpUpgrade linux-image-6.14.0-1015-aws-64kUpgrade linux-image-gcp-64k-6.14Upgrade linux-image-aws-64kUpgrade linux-image-generic-6.14Upgrade linux-image-aws-6.14Upgrade linux-image-6.14.0-34-genericUpgrade linux-image-realtimeUpgrade linux-image-raspiUpgrade linux-image-oem-24.04cUpgrade linux-image-gcp-64kUpgrade linux-image-generic-64k-6.14Upgrade linux-image-6.14.0-1014-azureUpgrade linux-image-oem-24.04Upgrade linux-image-6.14.0-1016-raspiUpgrade linux-image-aws-64k-6.14Upgrade linux-image-6.14.0-1015-awsUpgrade linux-image-awsUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-virtual-6.14Upgrade linux-image-oracleUpgrade linux-image-realtime-6.14Upgrade linux-image-6.14.0-1007-azure-nvidiaUpgrade linux-image-6.14.0-1014-oemUpgrade linux-image-oracle-64kUpgrade linux-image-6.14.0-1015-oracleUpgrade linux-image-6.14.0-34-generic-64kUpgrade linux-image-azureUpgrade linux-image-raspi-6.14Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.14.0-1018-gcp-64kUpgrade linux-image-gcp-6.14Upgrade linux-image-oracle-6.14 | Jul 31, 2025 | Jul 25, 2025 |
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