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.
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Affected Vendors & Products
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History
Thu, 02 Oct 2025 09:00:00 +0000
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Linux
Linux linux Kernel |
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Linux linux Kernel |
Thu, 02 Oct 2025 00:15:00 +0000
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threat_severity
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cvssV3_1
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Wed, 01 Oct 2025 12:00:00 +0000
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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 |
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-10-01T11:45:27.337Z
Reserved: 2025-10-01T11:38:45.640Z
Link: CVE-2022-50454

No data.

Status : Awaiting Analysis
Published: 2025-10-01T12:15:38.510
Modified: 2025-10-02T19:12:17.160
Link: CVE-2022-50454


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