Threats tagged 'ghsa-qj52-rm77-v6ch'

CVE-2024-42103 is a medium severity vulnerability in the Linux kernel's btrfs filesystem. It involves a race condition during block group reclaim operations where parallel list modifications can corrupt internal linked lists, leading to kernel crashes. The issue arises when a block group is concurrently removed from the reclaim list and added to the unused list without proper locking, causing list corruption and kernel oops. This flaw can be triggered during btrfs relocation operations that run out of chunk space. The vulnerability has been fixed by introducing a lock to protect the unused list during these operations.