Vulnerability 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)
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.18, < 6.18.33 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/155a372a1cc50fa93387c5d3cdfd614a61e1afd1Patch
- https://git.kernel.org/stable/c/39fdac6be02eb7c3460518c1c4085f75f935c4cePatch
- https://git.kernel.org/stable/c/827062952ed9bdf4220466c1f05ce452d04bdedfPatch
- https://access.redhat.com/errata/RHSA-2026:42919
- https://access.redhat.com/errata/RHSA-2026:45192
- https://access.redhat.com/security/cve/CVE-2026-52950Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2492318Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52950.jsonThird Party Advisory
FAQ
What is CVE-2026-52950?
CVE-2026-52950 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 tha...
How severe is CVE-2026-52950?
CVE-2026-52950 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-52950?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.