CVE-2026-53146
Description
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Limit XDomain response copy to actual frame size tb_xdomain_copy() copies req->response_size bytes from the received packet buffer regardless of the actual frame size. When a short response arrives, this reads past the valid frame data in the DMA pool buffer into stale contents from previous transactions. Use the minimum of frame size and expected response size for the copy length.
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/c55da494dfb445fb28df3a9d293c2be6a299cd01
- https://git.kernel.org/stable/c/7720654b4842bcdfeb64bc002f6186041849e1e7
- https://git.kernel.org/stable/c/033dfa63bf6be2653441a1dccae4a8313a91bb9d
- https://git.kernel.org/stable/c/fc261397295b8ad0654cec747b0ec25ea0011995
- https://git.kernel.org/stable/c/a15b6d3136accb2bf84b04d9a3ddd991f7fbf1cb
- https://git.kernel.org/stable/c/b5daa920f44cb582272fc9bfaeb67408776cbaef
- https://git.kernel.org/stable/c/b2c1e5d9f1598cc1a4736d5c6bd1218f90805ee4
- https://git.kernel.org/stable/c/4db2bd2ed4785dbadaeeab9f4e346b21ac5fb8eb
- https://security-tracker.debian.org/tracker/CVE-2026-53146
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.