CVE-2026-64160 | In the Linux kernel, the following vulnerability has been re… | CVSS 9.8 CRITICAL

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.

Metadata

CVE ID: CVE-2026-64160
State: PUBLISHED
Assigner: Linux
Reserved: 2026-07-19 07:54 UTC
Published: 2026-07-19 15:40 UTC
Last updated: 2026-07-20 13:43 UTC
Vendor / Product: Linux / Linux
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products (2)

Vendor	Product	Platform	Versions
Linux	Linux	—	4058f742105ecfcbdf99e1139e6c1f74fb8e6db9 < 55970f238d495517edc961d55c44c772594d0969, 4058f742105ecfcbdf99e1139e6c1f74fb8e6db9 < 2c8f4742bb76117d735f92a3932d85239b16c494
Linux	Linux	—	5.18, 0 < 5.18, 7.0.11 ≤ 7.0., 7.1 ≤

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (2)