Information Exposure Affecting torvalds/linux package, versions [6.1,6.1.191)[6.2,6.6.160)[6.7,6.12.114)[6.13,6.18.34)[6.19,7.0.11)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-20790984
  • published11 Oct 2026
  • disclosed19 Jul 2026
  • creditUnknown

Introduced: 19 Jul 2026

CVE-2026-64036  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 6.1.191, 6.6.160, 6.12.114, 6.18.34, 7.0.11 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure through the css_rstat_updated kfunc when an attacker supplies an invalid cpu argument. An attacker can read or corrupt arbitrary kernel memory by passing out-of-bounds values, leading to information disclosure or system instability. This is only exploitable if the attacker has both CAP_BPF and CAP_PERFMON capabilities and can load and execute BPF cgroup iterator or tracing programs.

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