drm/vc4: Shut down BO cache timer before teardown
In the Linux kernel, the following vulnerability has been resolved: drm/vc4: Shut down BO cache timer before teardown The BO cache timer callback schedules time_work, and time_work can rearm the timer through vc4_bo_cache_free_old(). vc4_bo_cache_destroy() deletes the timer and then cancels the work, which does not break that cycle: the work being cancelled can rearm the timer, and the timer then queues work again after teardown. Use timer_shutdown_sync() instead, so the timer cannot be rearmed and the cycle ends with cancel_work_sync().
CVE-2026-68233
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-2026-68233
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": "c826a6e1064419f78855463cf29ce9e8b9d25bf4",
"lessThan": "cf55c6f1b62a89bf365c48bf731ccf69340e3a16",
"versionType": "git"
},
{
"status": "affected",
"version": "c826a6e1064419f78855463cf29ce9e8b9d25bf4",
"lessThan": "e9264ee59bd94970b80b7548f693bccf0d4628da",
"versionType": "git"
},
{
"status": "affected",
"version": "c826a6e1064419f78855463cf29ce9e8b9d25bf4",
"lessThan": "a38f2724eb93a78ba250b01e0caf3468df4d3956",
"versionType": "git"
},
{
"status": "affected",
"version": "c826a6e1064419f78855463cf29ce9e8b9d25bf4",
"lessThan": "bac4c1a9af690b8635c6924872075c41d8763ed9",
"versionType": "git"
},
{
"status": "affected",
"version": "c826a6e1064419f78855463cf29ce9e8b9d25bf4",
"lessThan": "6273dd3ffb54ec581855b82ae77331b66028249c",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/vc4/vc4_bo.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.5",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.42",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.6",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/vc4/vc4_bo.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-68233
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46449 · Revision 1
- Added to Heist Feed
- Publisher date