PT-2026-61473 · Linux+1 · Linux Kernel+1

CVE-2026-64156

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Published

2026-07-19

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Updated

2026-09-07

CVSS v3.1

5.5

Medium

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description An issue exists in the netfs and afs components where write operations for directories and links could be skipped due to lock contention and the use of WB SYNC NONE. This occurs within the netfs write single() and afs single writepages() functions. When a skip occurs, the inode must be re-marked because the Virtual File System (VFS) might have cleared the mark.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

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Related Identifiers

CVE-2026-64156
USN-8593-1
USN-8603-1
USN-8618-1
USN-8663-1
USN-8664-1
USN-8728-1

Affected Products

Linux Kernel
Ubuntu