Description (CNA)
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)
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected eb289a5f6cc668853f9b2ea6aca04afe58ed11c7 before f9ad21b90162baf1d78f8036ff3813c3ec1ac88e; affected eb289a5f6cc668853f9b2ea6aca04afe58ed11c7 before 8fa8c2a22585fcb31dc605b91a67bbcca223fdd7; affected eb289a5f6cc668853f9b2ea6aca04afe58ed11c7 before 93a528f67ce5095bcab46a69839eca97f43dd352 |
| Linux / Linux | affected 6.18; unaffected 0 before 6.18; unaffected 6.18.32 through 6.18.*; unaffected 7.0.9 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.