CVE-2022-50454
drm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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 should delete the call to nouveau_bo_ref() to avoid the use-after-free.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 1, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 < 56ee9577915dc06f55309901012a9ef68dbdb5a8 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 < 5d6093c49c098d86c7b136aba9922df44aeb6944 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 < 861f085f81fd569b02cc2c11165a9e6cca144424 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 < 3aeda2fe6517cc52663d4ce3588dd43f0d4124a7 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 < 7d80473e9f12548ac05b36af4fb9ce80f2f73509 019cbd4a4feb3aa3a917d78e7110e3011bbff6d5 < 540dfd188ea2940582841c1c220bd035a7db0e51
Linux / Linux
5.4
References
git.kernel.org: https://git.kernel.org/stable/c/56ee9577915dc06f55309901012a9ef68dbdb5a8 git.kernel.org: https://git.kernel.org/stable/c/5d6093c49c098d86c7b136aba9922df44aeb6944 git.kernel.org: https://git.kernel.org/stable/c/861f085f81fd569b02cc2c11165a9e6cca144424 git.kernel.org: https://git.kernel.org/stable/c/3aeda2fe6517cc52663d4ce3588dd43f0d4124a7 git.kernel.org: https://git.kernel.org/stable/c/7d80473e9f12548ac05b36af4fb9ce80f2f73509 git.kernel.org: https://git.kernel.org/stable/c/540dfd188ea2940582841c1c220bd035a7db0e51