{"id":"CVE-2026-52950","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/dma-buf: fix UAF with retry loop\n\nRetry doesn't work here, since bo will be freed on error, leading to\nUAF","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/dma-buf: fix UAF with retry loop\n\nRetry doesn't work here, since bo will be freed on error, leading to\nUAF. However, now that we do the alloc & init before the a…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-825"],"published":"2026-06-24","updated":"2026-07-10","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-52950","references":[{"url":"https://git.kernel.org/stable/c/155a372a1cc50fa93387c5d3cdfd614a61e1afd1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/39fdac6be02eb7c3460518c1c4085f75f935c4ce","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/827062952ed9bdf4220466c1f05ce452d04bdedf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://access.redhat.com/security/cve/CVE-2026-52950","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492318","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52950.json","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}],"tags":["nvd"],"epss":0.00178,"epssPercentile":0.06491,"ingestedAt":"2026-07-11T13:13:24.799Z","slug":"CVE-2026-52950","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/dma-buf: fix UAF with retry loop\n\nRetry doesn't work here, since bo will be freed on error, leading to\nUAF. However, now that we do the alloc & init before the attach, we can\nnow combine this as one unit and have the init do the alloc for us. This\nshould make the retry safe.\n\nReported by Sashiko.\n\nv2: Fix up the error unwind (CI)\n\n(cherry picked from commit 479669418253e0f27f8cf5db01a731352ea592e7)\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}