# CVE-2022-50454: linux: In the Linux kernel, the following vulnerability has been resolved:  drm/nouveau: fix a use-after-free in nouveau_gem...

CVE-2022-50454 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50454, released October 1, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-50454
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 1, 2025

## 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 should delete the call to nouveau_bo_ref() to avoid the use-after-free.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.0.3-1 | [DEBIAN-CVE-2022-50454](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50454.md) | Oct 1, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.0.3-1 | [DEBIAN-CVE-2022-50454](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50454.md) | Oct 1, 2025 |
| Linux | linux Debian 14 | 6.0.3-1 | [DEBIAN-CVE-2022-50454](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50454.md) | Oct 1, 2025 |

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