Threats tagged 'ghsa-wpw6-8cm9-72wv'

A use-after-free vulnerability in the Linux kernel's Btrfs filesystem was resolved. The flaw occurs when an error during relocation in insert_dirty_subvol() leads to a root's reloc_root field pointing to freed memory, causing a use-after-free or double free during unmount. This can trigger kernel memory corruption and instability. The issue was reported by Syzbot and results in transaction aborts and kernel warnings. Affected versions include specific Linux kernel builds from 3.11.0-12.19 through 3.13.0-8.28. The severity is medium due to potential kernel crashes but no known exploits in the wild. No CVSS score is available.