CVE-2026-64160
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfs: Fix potential for tearing in ->remote_i_size and ->zero_point
Fix potential tearing in using ->remote_i_size and ->zero_point by copying i_size_read() and i_size_write() and using the same seqcount as for i_size.
We need to make sure that netfslib and the filesystems that use it always hold i_lock whilst updating any of the sizes to prevent i_size_seqcount from getting corrupted.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 4058f742105ecfcbdf99e1139e6c1f74fb8e6db9 < 55970f238d495517edc961d55c44c772594d0969 | affected |
| Linux | Linux | 4058f742105ecfcbdf99e1139e6c1f74fb8e6db9 < 2c8f4742bb76117d735f92a3932d85239b16c494 | affected |
| Linux | Linux | 5.18 | affected |
| Linux | Linux | 0 < 5.18 | unaffected |
| Linux | Linux | 7.0.11 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/55970f238d495517edc961d55c44c772594d0969
- https://git.kernel.org/stable/c/2c8f4742bb76117d735f92a3932d85239b16c494
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