CVE-2026-68365
Description
In the Linux kernel, the following vulnerability has been resolved: USB: serial: io_edgeport: cap received transmit credits The interrupt-status packet reports transmit credits returned by the device. edge_interrupt_callback() adds the 16-bit value to txCredits without checking maxTxCredits. edge_write() uses txCredits minus the software FIFO count as the amount of data that fits. Since the FIFO is allocated with maxTxCredits bytes, txCredits exceeding maxTxCredits can cause OOB write in ring buffer. Cap accumulated credits at maxTxCredits. Conforming devices should never hit the cap.
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/ee57992c053a6d395e98ced2d4c9cc3b42d8c27a
- https://git.kernel.org/stable/c/64b687f9694777754285d489abbefa3784bc78da
- https://git.kernel.org/stable/c/cbe00048b69d67c8a78293cb7681b4c9963b26c7
- https://git.kernel.org/stable/c/1e47d8228b8767c8ac722aedb388f70adeeda43d
- https://git.kernel.org/stable/c/faaddd811c5099f11a5f52e68a6b31a5898cda4f
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.