CVE-2022-49651

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

srcu: Tighten cleanup_srcu_struct() GP checks

Currently, cleanup_srcu_struct() checks for a grace period in progress, but it does not check for a grace period that has not yet started but which might start at any time. Such a situation could result in a use-after-free bug, so this commit adds a check for a grace period that is needed but not yet started to cleanup_srcu_struct().

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= da915ad5cf25b5f5d358dd3670c3378d8ae8c03e, < e997dda6502eefbc1032d6b0da7b353c53344b07; >= da915ad5cf25b5f5d358dd3670c3378d8ae8c03e, < 8ed00760203d8018bee042fbfe8e076579be2c2b
LinuxLinux4.12

References

Timeline

Published
Feb 26, 2025
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2022-49651: High severity, CVSS 7.8 | Vulnix