CVE-2026-64160

CRITICAL

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

Title source: cna
STIX 2.1

Description

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.

Scores

CVSS v3 9.8
EPSS 0.0041
EPSS Percentile 33.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (7)
linux/Kernel 5.18.0 - 7.0.11linux
Linux/Linux < 5.18
Linux/Linux 4058f742105ecfcbdf99e1139e6c1f74fb8e6db9 - 2c8f4742bb76117d735f92a3932d85239b16c494
Linux/Linux 4058f742105ecfcbdf99e1139e6c1f74fb8e6db9 - 55970f238d495517edc961d55c44c772594d0969
Linux/Linux 5.18
Linux/Linux 7.0.11 - 7.0.*
Linux/Linux 7.1
Published Jul 19, 2026
Tracked Since Jul 19, 2026