drm/xe/dma-buf: fix UAF with retry loop
In the Linux kernel, the following vulnerability has been resolved: drm/xe/dma-buf: fix UAF with retry loop Retry doesn't work here, since bo will be freed on error, leading to UAF. However, now that we do the alloc & init before the attach, we can now combine this as one unit and have the init do the alloc for us. This should make the retry safe. Reported by Sashiko. v2: Fix up the error unwind (CI) (cherry picked from commit 479669418253e0f27f8cf5db01a731352ea592e7)
CVE-2026-52950
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-2026-52950
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": "eb289a5f6cc668853f9b2ea6aca04afe58ed11c7",
"lessThan": "39fdac6be02eb7c3460518c1c4085f75f935c4ce",
"versionType": "git"
},
{
"status": "affected",
"version": "eb289a5f6cc668853f9b2ea6aca04afe58ed11c7",
"lessThan": "827062952ed9bdf4220466c1f05ce452d04bdedf",
"versionType": "git"
},
{
"status": "affected",
"version": "eb289a5f6cc668853f9b2ea6aca04afe58ed11c7",
"lessThan": "155a372a1cc50fa93387c5d3cdfd614a61e1afd1",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/xe/xe_dma_buf.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.18",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.33",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.10",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/xe/xe_dma_buf.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-52950
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #40708 · Revision 1
- Added to Heist Feed
- Publisher date