Description
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)
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
eb289a5f6cc668853f9b2ea6aca04afe58ed11c7 to < 39fdac6be02eb7c3460518c1c4085f75f935c4ceaffectedeb289a5f6cc668853f9b2ea6aca04afe58ed11c7 to < 827062952ed9bdf4220466c1f05ce452d04bdedfaffectedeb289a5f6cc668853f9b2ea6aca04afe58ed11c7 to < 155a372a1cc50fa93387c5d3cdfd614a61e1afd1affected
Linux Linux
Default version status: affected
6.18affected0 to < 6.18unaffected6.18.33 to ≤ 6.18.*unaffected7.0.10 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/39fdac6be02eb7c3460518c1c4085f75f935c4ce ↗
- https://git.kernel.org/stable/c/827062952ed9bdf4220466c1f05ce452d04bdedf ↗
- https://git.kernel.org/stable/c/155a372a1cc50fa93387c5d3cdfd614a61e1afd1 ↗
- https://access.redhat.com/security/cve/CVE-2026-52950 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=2492318 ↗
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52950.json ↗
- https://access.redhat.com/errata/RHSA-2026:42919 ↗
- https://access.redhat.com/errata/RHSA-2026:45192 ↗