Use After Free Affecting perf package, versions <0:4.18.0-372.87.1.el8_6
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Test your applications- Snyk ID SNYK-RHEL8-PERF-6205010
- published 26 Jan 2024
- disclosed 10 Mar 2023
Introduced: 10 Mar 2023
CVE-2024-0562 Open this link in a new tabHow to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-372.87.1.el8_6 or higher.
This issue was patched in RHSA-2024:0412.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
A use-after-free flaw was found in the Linux Kernel. When a disk is removed, bdi_unregister is called to stop further write-back and waits for associated delayed work to complete. However, wb_inode_writeback_end() may schedule bandwidth estimation work after this has completed, which can result in the timer attempting to access the recently freed bdi_writeback.