PT-2026-61385 · Linux+1 · Linux Kernel+1

CVE-2026-64068

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Published

2026-07-19

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Updated

2026-09-07

CVSS v3.1

9.8

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description An issue exists in the netfs component where locking is missing when adding new subrequests. Specifically, the functions netfs retry read subrequests() and netfs retry write stream() fail to acquire the necessary lock when inserting additional subrequests into stream->subrequests.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Locking

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Weakness Enumeration

CWE-667

Related Identifiers

CVE-2026-64068
USN-8593-1
USN-8603-1
USN-8618-1
USN-8663-1
USN-8664-1
USN-8728-1

Affected Products

Linux Kernel
Ubuntu