CVE-2024-0562

CVSS 3.1 Score 7.8 of 10 (high)

Details

Published Jan 15, 2024
Updated: Jan 25, 2024
CWE ID 416

Summary

CVE-2024-0562 is a use-after-free vulnerability affecting the Linux Kernel. Specifically, when a disk is removed, the system calls bdi_unregister to halt further write-backs and waits for associated delayed work to complete. However, wb_inode_writeback_end may schedule bandwidth estimation work after this process, leading the timer to inadvertently access the recently freed bdi_writeback, potentially causing memory corruption or system instability. This issue poses a serious risk to Linux systems, especially those with heavy disk I/O workloads. System administrators are advised to apply the necessary patch as soon as possible to mitigate this vulnerability.

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Affected Products

  • Linux Kernel
  • Red Hat Enterprise Linux

Affected Vendors

  • LINUX
  • Red Hat

Advisories, Assessments, and Mitigations

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