CVE-2026-74376
Description
In the Linux kernel, the following vulnerability has been resolved: md/raid10: reset read_slot when reusing r10bio for discard put_all_bios() always drops devs[i].bio, but it only drops devs[i].repl_bio when r10_bio->read_slot < 0. If discard reuses an r10bio that was previously used for a read, read_slot can still be non-negative, and discard cleanup can skip bio_put() on repl_bio. Reset read_slot to -1 when preparing an r10bio for discard so the replacement bio is always released correctly.
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/3cb2a606ce4902eceabe68338df0653312f861f8
- https://git.kernel.org/stable/c/561c9711e4f545d6464a023168bdee03b00fa945
- https://git.kernel.org/stable/c/6b8a26af065ddc93de2aa5c9f0df98dce9723442
- https://git.kernel.org/stable/c/742e4afd247d9c972695227716b03d432a7e1d26
- https://git.kernel.org/stable/c/b7313f23ea5a79b199a007bfad64a866cc2c22e7
- https://git.kernel.org/stable/c/ce3030e92f14362880055de5fe3c258971118853
- https://git.kernel.org/stable/c/eb04e3e9c14ed15914f5fd2eae8b6435f54f095f
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.