CVE-2026-53159
Description
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix DMA address corruption due to find_vma misuse fastrpc_get_args() uses find_vma() to look up the VMA for a user-provided pointer and compute a DMA address offset. When the address falls in a gap before the returned VMA, (ptr & PAGE_MASK) - vma->vm_start underflows, corrupting the DMA address sent to the DSP. Replace find_vma() with vma_lookup(), which returns NULL when the address is not contained within any VMA.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 6.12.94-1 |
| sid | Fixed | 7.0.13-1 |
| forky | Affected | — |
| bullseye | Affected | — |
| bookworm | Affected | — |
References
- https://git.kernel.org/stable/c/2d0f47e27c1fa718b29c69aa7c96a2c5161bc2c2
- https://git.kernel.org/stable/c/708c17b52c60fe7a57e73b495bdee50f58feb48c
- https://git.kernel.org/stable/c/d3e26df2e8eb361e6bef096b2fd565476a1f14c4
- https://git.kernel.org/stable/c/e69e306a4cccb40a73511350cb280825a556ce3c
- https://git.kernel.org/stable/c/53e06f8a3c2b085c31bf1284e2ebcb8036e99625
- https://git.kernel.org/stable/c/7ba7b30ddb04646d4d638f4d8c4718a304bbbddd
- https://git.kernel.org/stable/c/464c6ad2aa16e1e1df9d559289199356493d1e00
- https://security-tracker.debian.org/tracker/CVE-2026-53159
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.