GHSA-JCP9-G46R-J6HH
Vulnerability from github – Published: 2026-05-28 12:30 – Updated: 2026-05-28 12:30In 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": [],
"aliases": [
"CVE-2026-46224"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-28T10:16:38Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Fix bo leak in xe_dma_buf_init_obj() on allocation failure\n\nWhen drm_gpuvm_resv_object_alloc() fails, the pre-allocated storage bo\nis not freed. Add xe_bo_free(storage) before returning the error.\n\nxe_dma_buf_init_obj() calls xe_bo_init_locked(), which frees the bo on\nerror. Therefore, xe_dma_buf_init_obj() must also free the bo on its own\nerror paths. Otherwise, since xe_gem_prime_import() cannot distinguish\nwhether the failure originated from xe_dma_buf_init_obj() or from\nxe_bo_init_locked(), it cannot safely decide whether the bo should be\nfreed.\n\nAdd comments documenting the ownership semantics: on success, ownership\nof storage is transferred to the returned drm_gem_object; on failure,\nstorage is freed before returning.\n\nv2: Add comments to explain the free logic.\n\n(cherry picked from commit 78a6c5f899f22338bbf48b44fb8950409c5a69b9)",
"id": "GHSA-jcp9-g46r-j6hh",
"modified": "2026-05-28T12:30:33Z",
"published": "2026-05-28T12:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46224"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8fa8c2a22585fcb31dc605b91a67bbcca223fdd7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/93a528f67ce5095bcab46a69839eca97f43dd352"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f9ad21b90162baf1d78f8036ff3813c3ec1ac88e"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
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