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-rtUpgrade dtb-qcomUpgrade kernel-source-azureUpgrade kernel-kvmsmallUpgrade gfs2-kmp-rtUpgrade kernel-rt-develUpgrade dtb-lgUpgrade kernel-kvmsmall-develUpgrade kernel-symsUpgrade kernel-rt-livepatch-develUpgrade cluster-md-kmp-defaultUpgrade dlm-kmp-64kbUpgrade kernel-default-develUpgrade dtb-amazonUpgrade gfs2-kmp-64kbUpgrade kernel-default-vdsoUpgrade kernel-default-extraUpgrade dtb-exynosUpgrade kernel-64kbUpgrade dtb-armUpgrade kernel-devel-azureUpgrade ocfs2-kmp-rtUpgrade dtb-apmUpgrade dtb-xilinxUpgrade kernel-docs-htmlUpgrade dtb-hisiliconUpgrade kernel-syms-azureUpgrade dtb-marvellUpgrade kernel-64kb-develUpgrade kernel-default-livepatchUpgrade kernel-64kb-optionalUpgrade kernel-sourceUpgrade dtb-amlogicUpgrade kernel-obs-qaUpgrade dtb-appleUpgrade dtb-broadcomUpgrade dtb-freescaleUpgrade kselftests-kmp-64kbUpgrade dtb-mediatekUpgrade kernel-zfcpdumpUpgrade kernel-macrosUpgrade kernel-azure-develUpgrade kernel-kvmsmall-vdsoUpgrade kselftests-kmp-rtUpgrade kselftests-kmp-defaultUpgrade dtb-sprdUpgrade kernel-rt-optionalUpgrade dtb-amdUpgrade kernel-obs-buildUpgrade kernel-azureUpgrade cluster-md-kmp-64kbUpgrade dtb-rockchipUpgrade ocfs2-kmp-64kbUpgrade dtb-caviumUpgrade kernel-defaultUpgrade kernel-64kb-extraUpgrade dtb-nvidiaUpgrade dlm-kmp-defaultUpgrade reiserfs-kmp-defaultUpgrade dtb-allwinnerUpgrade kernel-default-livepatch-develUpgrade dtb-renesasUpgrade cluster-md-kmp-rtUpgrade kernel-rt-vdsoUpgrade kernel-default-optionalUpgrade kernel-rt-livepatchUpgrade kernel-develUpgrade dlm-kmp-rtUpgrade ocfs2-kmp-defaultUpgrade dtb-alteraUpgrade kernel-docsUpgrade gfs2-kmp-defaultUpgrade kernel-rt-extraUpgrade kernel-default-baseUpgrade kernel-source-vanillaUpgrade dtb-socionext | Dec 5, 2025 | Aug 18, 2025 |
| Ubuntu | — | Upgrade linux-image-gcp-6.14Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-raspi-6.14Upgrade linux-image-6.14.0-1007-azure-nvidiaUpgrade linux-image-gcp-64kUpgrade linux-image-6.14.0-34-genericUpgrade linux-image-generic-6.14Upgrade linux-image-realtime-6.14Upgrade linux-image-6.14.0-1015-awsUpgrade linux-image-azureUpgrade linux-image-6.14.0-1018-gcp-64kUpgrade linux-image-virtual-6.14Upgrade linux-image-6.14.0-34-generic-64kUpgrade linux-image-oracle-6.14Upgrade linux-image-gcp-64k-6.14Upgrade linux-image-awsUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-oracleUpgrade linux-image-aws-64k-6.14Upgrade linux-image-realtimeUpgrade linux-image-aws-64kUpgrade linux-image-oem-24.04Upgrade linux-image-6.14.0-1014-azureUpgrade linux-image-6.14.0-1015-oracleUpgrade linux-image-6.14.0-1014-oemUpgrade linux-image-aws-6.14Upgrade linux-image-oracle-64kUpgrade linux-image-oem-24.04cUpgrade linux-image-raspiUpgrade linux-image-6.14.0-1016-raspiUpgrade linux-image-generic-64k-6.14Upgrade linux-image-virtualUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-azure-nvidia-6.14Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-azure-6.14Upgrade linux-image-6.14.0-1015-aws-64kUpgrade linux-image-oracle-64k-6.14Upgrade linux-image-oem-6.14Upgrade linux-image-gcpUpgrade linux-image-oem-24.04bUpgrade linux-image-6.14.0-1018-gcpUpgrade linux-image-6.14.0-1015-oracle-64kUpgrade linux-image-generic-64kUpgrade linux-image-oem-24.04aUpgrade linux-image-genericUpgrade linux-image-6.14.0-1014-realtimeUpgrade linux-image-azure-nvidia | Jul 31, 2025 | Jul 25, 2025 |
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