CVE-2026-68340
Description
In the Linux kernel, the following vulnerability has been resolved: hwmon: occ: validate poll response sensor blocks The OCC poll response parser walks a counted list of sensor data blocks. It used the static backing-array capacity as the parse boundary, but a transport response makes only data_length bytes current and valid. A truncated response can therefore make the parser consume a block header or block extent outside the current response. Use data_length as the parent boundary, prove the fixed poll header and each current block header before reading them, and prove the complete block before advancing. Keep parsed sensor metadata local until the complete response has passed validation, then publish it. Propagate malformed-response errors before publishing the OCC as active.
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.
References
- https://git.kernel.org/stable/c/112525534ab5cff482d35897ca4ca11fd3a76f46
- https://git.kernel.org/stable/c/54cb78eceb4e286ccd5a5c01a4632157860d47f0
- https://git.kernel.org/stable/c/538d862cc0dbd5c732fe26d5aad98eae039e6676
- https://git.kernel.org/stable/c/b042e538e98b939fccfffc464e2c34c29f0e96ef
- https://git.kernel.org/stable/c/70e76e700fc6c46afb4e17aec099a1ea089b4a22
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.