drm/xe/guc: Add devm release action to safely tear down CT
In the Linux kernel, the following vulnerability has been resolved: drm/xe/guc: Add devm release action to safely tear down CT When a buffer object (BO) is allocated with the XE_BO_FLAG_GGTT_INVALIDATE flag, the driver initiates TLB invalidation requests via the CTB mechanism while releasing the BO. However a premature release of the CTB BO can lead to system crashes, as observed in: Oops: Oops: 0000 [#1] SMP NOPTI RIP: 0010:h2g_write+0x2f3/0x7c0 [xe] Call Trace: guc_ct_send_locked+0x8b/0x670 [xe] xe_guc_ct_send_locked+0x19/0x60 [xe] send_tlb_invalidation+0xb4/0x460 [xe] xe_gt_tlb_invalidation_ggtt+0x15e/0x2e0 [xe] ggtt_invalidate_gt_tlb.part.0+0x16/0x90 [xe] ggtt_node_remove+0x110/0x140 [xe] xe_ggtt_node_remove+0x40/0xa0 [xe] xe_ggtt_remove_bo+0x87/0x250 [xe] Introduce a devm-managed release action during xe_guc_ct_init() and xe_guc_ct_init_post_hwconfig() to ensure proper CTB disablement before resource deallocation, preventing the use-after-free scenario.
CVE-2025-68193
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2025-68193
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "231c4110873a5db4975512c30aa10edcc5be56e2",
"lessThan": "fd4e41545d5955e6f7b4a0c4b56d21010ce8e812",
"versionType": "git"
},
{
"status": "affected",
"version": "231c4110873a5db4975512c30aa10edcc5be56e2",
"lessThan": "52faa05fcd9f78af99abebe30a4b7b444744c991",
"versionType": "git"
},
{
"status": "affected",
"version": "231c4110873a5db4975512c30aa10edcc5be56e2",
"lessThan": "ee4b32220a6b41e71512e8804585325e685456ba",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/xe/xe_guc.c",
"drivers/gpu/drm/xe/xe_guc_ct.c",
"drivers/gpu/drm/xe/xe_guc_ct.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.10"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.10",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.17.8",
"versionType": "semver",
"lessThanOrEqual": "6.17.*"
},
{
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/xe/xe_guc.c",
"drivers/gpu/drm/xe/xe_guc_ct.c",
"drivers/gpu/drm/xe/xe_guc_ct.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-68193
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46056 · Revision 1
- Added to Heist Feed
- Publisher date