CVE-2026-53284

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the Btrfs file system where the dirty pages io tree is released prematurely. Within the btrfs write and wait transaction() function, the system attempts to write dirty extent buffers and then calls btrfs extent io tree release() to free extent states. If an error occurs during btrfs write marked extent(), the btrfs extent io tree release() function is still called, clearing the dirty pages io tree even if it contains records that were not yet submitted. Consequently, the transaction cleanup path cannot properly clean up these dirty extent buffers because the tree is already empty, leading to warnings within the invalidate btree folios() function during unmount.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.