CVEvulnerability
CVE-2026-89995
8.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-09-16
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
dma-direct: return struct page from dma_direct_alloc_from_pool()
Commit 5b138c534fda ("dma-direct: factor out a dma_direct_alloc_from_pool
helper") changed dma_direct_alloc_from_pool() to return the CPU address
from dma_alloc_from_pool(). That fits dma_direct_alloc(), but
dma_direct_alloc_pages() also uses the helper and expects a struct page *.
Fix this by making dma_direct_alloc_from_pool() return the struct page *
again, and pass the CPU address back through an out-parameter for the
dma_direct_alloc() caller.
References
- https://git.kernel.org/stable/c/408ff2d5bf555bd3f4c84a2edb95c0690bf9edc8 git.kernel.org
- https://git.kernel.org/stable/c/7801e616fbe3661f9471b2e9bfcb1ed35460bf16 git.kernel.org
- https://git.kernel.org/stable/c/94a04ad732c9f8b9554270fc4038a06737de5c22 git.kernel.org
- https://git.kernel.org/stable/c/c3fdb94da43ff23287f85664174c45c45e881a3f git.kernel.org
- https://git.kernel.org/stable/c/feeb2ef775081a6c188cdd10e7a45369a07ce531 git.kernel.org