CVE-2026-31556
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
xfs: scrub: unlock dquot before early return in quota scrub
xchk_quota_item can return early after calling xchk_fblock_process_error. When that helper returns false, the function returned immediately without dropping dq->q_qlock, which can leave the dquot lock held and risk lock leaks or deadlocks in later quota operations.
Fix this by unlocking dq->q_qlock before the early return.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 7d1f0e167a067ed741dec08b7614d76893422b04 < e822f535273af0e8968eab7acc0cea0b90dd25af | affected |
| Linux | Linux | 7d1f0e167a067ed741dec08b7614d76893422b04 < 3b0c3414b308e6822cda90bf99f7eac94d4cca2b | affected |
| Linux | Linux | 7d1f0e167a067ed741dec08b7614d76893422b04 < d128fc0c5c2b19224927d4fd2a46c2fe6a1f606f | affected |
| Linux | Linux | 7d1f0e167a067ed741dec08b7614d76893422b04 < 268378b6ad20569af0d1957992de1c8b16c6e900 | affected |
| Linux | Linux | 6.8 | affected |
| Linux | Linux | 0 < 6.8 | unaffected |
| Linux | Linux | 6.12.80 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.21 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.11 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/e822f535273af0e8968eab7acc0cea0b90dd25af
- https://git.kernel.org/stable/c/3b0c3414b308e6822cda90bf99f7eac94d4cca2b
- https://git.kernel.org/stable/c/d128fc0c5c2b19224927d4fd2a46c2fe6a1f606f
- https://git.kernel.org/stable/c/268378b6ad20569af0d1957992de1c8b16c6e900
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