Vulnerability Database

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CVE-2026-46224 — linux / linux_kernel

Missing Release of Memory after Effective Lifetime

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)

  • Published: May 28, 2026
  • Updated: Oct 17, 2026
  • CVE: CVE-2026-46224
  • Severity: Medium
  • Exploit:
  • CISA KEV:

CVSS v3:

  • Severity: Medium
  • Score: 5.5
  • AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWEs:

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