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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00036.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/3aeda2fe6517cc52663d4ce3588dd43f0d4124a7 cve-icon cve-icon
https://git.kernel.org/stable/c/540dfd188ea2940582841c1c220bd035a7db0e51 cve-icon cve-icon
https://git.kernel.org/stable/c/56ee9577915dc06f55309901012a9ef68dbdb5a8 cve-icon cve-icon
https://git.kernel.org/stable/c/5d6093c49c098d86c7b136aba9922df44aeb6944 cve-icon cve-icon
https://git.kernel.org/stable/c/7d80473e9f12548ac05b36af4fb9ce80f2f73509 cve-icon cve-icon
https://git.kernel.org/stable/c/861f085f81fd569b02cc2c11165a9e6cca144424 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025100118-CVE-2022-50454-9c7d@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-50454 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-50454 cve-icon
History

Thu, 02 Oct 2025 09:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Thu, 02 Oct 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Wed, 01 Oct 2025 12:00:00 +0000

Type Values Removed Values Added
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.
Title drm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table()
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-10-01T11:45:27.337Z

Reserved: 2025-10-01T11:38:45.640Z

Link: CVE-2022-50454

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-01T12:15:38.510

Modified: 2025-10-02T19:12:17.160

Link: CVE-2022-50454

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-10-01T00:00:00Z

Links: CVE-2022-50454 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-10-02T08:38:29Z

Weaknesses

No weakness.