CVE-2024-0562

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.

More information : https://access.redhat.com/errata/RHSA-2024:0412

Attack vector : LOCAL
Attack complexity : LOW
Privileges required : LOW
User interaction : NONE
Confidentiality impact : HIGH
Integrity impact : HIGH
Base score : 7.8
Base severity : HIGH
Exploitability score : 1.8
Impact score : 5.9