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CVE-2026-64371

kernel: proc: protect ptrace_may_access() with exec_update_lock (part 1)

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Severity

Moderate

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · July 25, 2026

Updated · September 9, 2026

Description

A flaw was found in the Linux kernel's procfs (a virtual filesystem that provides information about running processes). This vulnerability occurs because certain functions within procfs do not properly protect access to process memory information. A local attacker could exploit this missing protection to potentially disclose sensitive information about other processes, which could lead to further system compromise.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE not specified