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CVE

CVE-2026-64160

netfs: Fix potential for tearing in ->remote_i_size and ->zero_point
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CVE

CVE-2026-64160

netfs: Fix potential for tearing in ->remote_i_size and ->zero_point

In the Linux kernel, the following vulnerability has been resolved:

netfs: Fix potential for tearing in ->remoteisize and ->zero_point

Fix potential tearing in using ->remoteisize and ->zero_point by copying

isizeread() and isizewrite() and using the same seqcount as for i_size.

We need to make sure that netfslib and the filesystems that use it always

hold ilock whilst updating any of the sizes to prevent isize_seqcount

from getting corrupted.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://git.kernel.org/stable/c/2c8f4742bb76117d735f92a3932d85239b16c494, https://git.kernel.org/stable/c/55970f238d495517edc961d55c44c772594d0969, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64160.json, https://nvd.nist.gov/vuln/detail/CVE-2026-64160, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.00407%
EPSS Percentile
0.3394%
Introduced Version
4058f742105ecfcbdf99e1139e6c1f74fb8e6db9,5.18.0,0
Fix Available
2c8f4742bb76117d735f92a3932d85239b16c494,7.0.11,7.0.0-28.28~24.04.1,7.0.0-1016.16~24.04.1,7.0.0-28.28.1~24.04.3

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