CVE-2026-64256
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
xfs: don't wrap around quota ids in dqiterate
LOLLM noticed that q_id is an unsigned 32-bit variable. If it happens to be set to XFS_DQ_ID_MAX due to a filesystem that actually has a dquot for ID_MAX, then this addition will truncate to zero and the iteration starts over. Fix this by casting to u64.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 21d7500929c8a0b10e22a6755850c6f9a9280284 < 249e311c2ba392ceaf9ebfc145a46922946f069a | affected |
| Linux | Linux | 21d7500929c8a0b10e22a6755850c6f9a9280284 < d1c4c40599c376aeb0c93068a2ae344e79ee4b90 | affected |
| Linux | Linux | 21d7500929c8a0b10e22a6755850c6f9a9280284 < 2b14fe1e0924c6b901f4256456342569c5397abe | affected |
| Linux | Linux | 21d7500929c8a0b10e22a6755850c6f9a9280284 < d766e4e5e85d829629c3ba503802fe1303d7b591 | affected |
| Linux | Linux | 6.8 | affected |
| Linux | Linux | 0 < 6.8 | unaffected |
| Linux | Linux | 6.12.96 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.39 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.4 <= 7.1.* | unaffected |
| Linux | Linux | 7.2-rc4 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/249e311c2ba392ceaf9ebfc145a46922946f069a
- https://git.kernel.org/stable/c/d1c4c40599c376aeb0c93068a2ae344e79ee4b90
- https://git.kernel.org/stable/c/2b14fe1e0924c6b901f4256456342569c5397abe
- https://git.kernel.org/stable/c/d766e4e5e85d829629c3ba503802fe1303d7b591
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