5.5

CVE-2026-46224

drm/xe: Fix bo leak in xe_dma_buf_init_obj() on allocation failure

In the Linux kernel, the following vulnerability has been resolved:

drm/xe: Fix bo leak in xe_dma_buf_init_obj() on allocation failure

When drm_gpuvm_resv_object_alloc() fails, the pre-allocated storage bo
is not freed. Add xe_bo_free(storage) before returning the error.

xe_dma_buf_init_obj() calls xe_bo_init_locked(), which frees the bo on
error. Therefore, xe_dma_buf_init_obj() must also free the bo on its own
error paths. Otherwise, since xe_gem_prime_import() cannot distinguish
whether the failure originated from xe_dma_buf_init_obj() or from
xe_bo_init_locked(), it cannot safely decide whether the bo should be
freed.

Add comments documenting the ownership semantics: on success, ownership
of storage is transferred to the returned drm_gem_object; on failure,
storage is freed before returning.

v2: Add comments to explain the free logic.

(cherry picked from commit 78a6c5f899f22338bbf48b44fb8950409c5a69b9)
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.18 < 6.18.32
Linux ≫ Linux Kernel Version >= 6.19 < 7.0.9
Linux ≫ Linux Kernel Version7.1 Updaterc1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.02
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

https://git.kernel.org/stable/c/f9ad21b90162baf1d78f8036ff3813c3ec1ac88e
Patch
https://git.kernel.org/stable/c/8fa8c2a22585fcb31dc605b91a67bbcca223fdd7
Patch
https://git.kernel.org/stable/c/93a528f67ce5095bcab46a69839eca97f43dd352
Patch