Use After Free Affecting torvalds/linux package, versions [6.4,6.6.148)[6.7,6.12.101)[6.13,6.18.42)[6.19,7.1.6)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.16% (5th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-20791579
  • published11 Oct 2026
  • disclosed5 Aug 2026
  • creditUnknown

Introduced: 5 Aug 2026

CVE-2026-64574  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 6.6.148, 6.12.101, 6.18.42, 7.1.6 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free in the ieee80211_if_read_link function. An attacker can trigger kernel memory corruption and potentially execute arbitrary code or cause a denial of service by performing a sequence of link additions that fail and subsequently accessing the dangling debugfs file pointer. This is only exploitable if the attacker has the ability to issue nl80211 link update commands and access debugfs files within the affected environment.

Note: The Linux kernel project assigns a CVE to every bug fix it ships, whether or not the bug has been shown to be exploitable. This advisory was generated from that process and has not been individually assessed for exploitability. See the kernel's CVE process documentation: https://github.com/torvalds/linux/blob/master/Documentation/process/cve.rst

CVSS Base Scores

version 4.0
version 3.1