Description
In the Linux kernel, the following vulnerability has been resolved:
md/raid1: fix writes_pending and barrier reference leaks on write failures
raid1_make_request() acquires a writes_pending reference with md_write_start() before calling raid1_write_request(). Several failure paths in raid1_write_request() complete the bio and return without reaching the normal write completion path, causing the corresponding md_write_end() to be skipped.
Make raid1_write_request() return a status indicating whether the write request was successfully queued. This allows raid1_make_request() to call md_write_end() when raid1_write_request() fails.
Additionally, if wait_blocked_rdev() fails after wait_barrier() succeeds, the associated barrier reference is not released.
Call allow_barrier() before returning from that path to keep the barrier accounting balanced.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:HAffected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 5aa705039c4fca84575539bfa2b8a28454a3d2ca, < 874f54243d881fde1890849000beb88a7880d1ec; >= 5aa705039c4fca84575539bfa2b8a28454a3d2ca, < 921e2baa626d1504bf30295816aaeb90ac8c82f4; >= 5aa705039c4fca84575539bfa2b8a28454a3d2ca, < a846affa813013204d0cce0cfdaeb99e8fcce188; >= 5aa705039c4fca84575539bfa2b8a28454a3d2ca, < 7a450460687919e79b5f8503bdeb13ecf4cca311; >= 5aa705039c4fca84575539bfa2b8a28454a3d2ca, < bffbbfcbd9393e315a7a4286dcd70e875265db9a; >= 5aa705039c4fca84575539bfa2b8a28454a3d2ca, < 8e065a1602511282fc0da2dc89445e0eb71a681c |
| Linux | Linux | 5.17 |
References
- https://git.kernel.org/stable/c/7a450460687919e79b5f8503bdeb13ecf4cca311
- https://git.kernel.org/stable/c/874f54243d881fde1890849000beb88a7880d1ec
- https://git.kernel.org/stable/c/8e065a1602511282fc0da2dc89445e0eb71a681c
- https://git.kernel.org/stable/c/921e2baa626d1504bf30295816aaeb90ac8c82f4
- https://git.kernel.org/stable/c/a846affa813013204d0cce0cfdaeb99e8fcce188
- https://git.kernel.org/stable/c/bffbbfcbd9393e315a7a4286dcd70e875265db9a
Timeline
- Published
- Aug 15, 2026
- Last modified
- Oct 30, 2026
- NVD status
- Received