Threats tagged 'ghsa-2886-j9mj-2v9x'

A vulnerability in the Linux kernel's Btrfs filesystem balance operation can cause a null pointer dereference leading to a kernel crash. This occurs when metadata corruption results in a chunk in the chunk tree without a corresponding block group in the in-memory cache. The issue is fixed by adding a null check in the btrfs_may_alloc_data_chunk() function.