CVE-2024-42266

A flaw was found in the btrfs module in the Linux kernel. Improper locking can occur due to an improper handling of error conditions, causing a kernel panic and resulting in a denial of service...

CVE-2024-42266 btrfs: make cow_file_range_inline() honor locked_page on error

In the Linux kernel, the following vulnerability has been resolved: btrfs: make cowfilerangeinline honor lockedpage on error The btrfs buffered write path runs through extentwritepage which has some tricky return value handling for writepagedelalloc. Specifically, when that returns 1, we exit, bu...

CVE-2024-42266

CVE-2024-42266 relates to the Linux kernel btrfs module. The issue stems from the cow_file_range_inline() path not honoring the folio lock state on error, which can lead to an assertion panic or kernel bug when a folio becomes unlocked during buffered write handling in __extent_writepage()/extent...