Linux kernel DRM/xe Bo leak fix on allocation failure
CVE-2026-46224 Published on May 28, 2026
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)
Products Associated with CVE-2026-46224
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Affected Versions
Linux:- Version eb289a5f6cc668853f9b2ea6aca04afe58ed11c7 and below f9ad21b90162baf1d78f8036ff3813c3ec1ac88e is affected.
- Version eb289a5f6cc668853f9b2ea6aca04afe58ed11c7 and below 8fa8c2a22585fcb31dc605b91a67bbcca223fdd7 is affected.
- Version eb289a5f6cc668853f9b2ea6aca04afe58ed11c7 and below 93a528f67ce5095bcab46a69839eca97f43dd352 is affected.
- Version 6.18 is affected.
- Before 6.18 is unaffected.
- Version 6.18.32, <= 6.18.* is unaffected.
- Version 7.0.9, <= 7.0.* is unaffected.
- Version 7.1-rc2, <= * is unaffected.