CVE-2022-50454 — Use After Free in Linux
Severity
7.8HIGHNVD
EPSS
0.0%
top 96.97%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedOct 1
Description
In the Linux kernel, the following vulnerability has been resolved:
drm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table()
nouveau_bo_init() is backed by ttm_bo_init() and ferries its return code
back to the caller. On failures, ttm will call nouveau_bo_del_ttm() and
free the memory.Thus, when nouveau_bo_init() returns an error, the gem
object has already been released. Then the call to nouveau_bo_ref() will
use the freed "nvbo->bo" and lead to a use-after-free bug.
We shoul…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages4 packages
▶CVEListV5linux/linux019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 — 56ee9577915dc06f55309901012a9ef68dbdb5a8+6
Patches
🔴Vulnerability Details
2OSV▶
CVE-2022-50454: In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table() nouveau_b↗2025-10-01
GHSA▶
GHSA-w7xv-cpcr-3q3h: In the Linux kernel, the following vulnerability has been resolved:
drm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table()
nouveau↗2025-10-01