In the Linux kernel, the following vulnerability has been resolved: md/raid10: fix writes_pending and barrier reference leaks on discard failures raid10_make_request() acquires a writes_pending reference with md_write_start() before calling raid10_handle_discard(). Several failure paths in raid10_handle_discard() complete the bio and return without releasing the corresponding reference, causing md_write_end() to be skipped. Call md_write_end() before returning from these failure paths to keep writes_pending accounting balanced. Additionally, discard split allocation failures can occur after wait_barrier() succeeds. Those paths return without calling allow_barrier(), leaking the associated barrier reference. Release the barrier before returning from those paths.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 5
- StatusReceived → PublishedNVD modified 2026-10-21 12:44
- References+1 references (now 5)NVD modified 2026-10-21 13:19
- StatusPublished → ReceivedNVD modified 2026-10-21 13:19
- StatusReceived → PublishedNVD modified 2026-10-21 12:44
- First seenCVSS 7.5NVD modified 2026-10-16 19:17
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 5
- https://git.kernel.org/stable/c/11b35d1906a7277a3d64afe34224133b44327328
- https://git.kernel.org/stable/c/393d687131d8aa8c7e4de2cb494438e145d20fc2
- https://git.kernel.org/stable/c/80ac31cce55432034a9eb98262c92ace7866e494
- https://git.kernel.org/stable/c/d1324b41dabd26787559efaeb430643c627c1eb0
- https://git.kernel.org/stable/c/fea33968592559a55a3f5a96a6386bebcaf988a8