CVE-2026-89496 ocfs2: always run deallocs on copy-on-write completion

In the Linux kernel, the following vulnerability has been resolved: ocfs2: always run deallocs on copy-on-write completion Local fuzzing of 6.12.94 has found the following memory leak caused by doing 'copyfilerange' within the same filesystem: unreferenced object 0xffff88812192c980 size 32: comm...

CVE-2026-89496

CVE-2026-89496 is a memory leak in the Linux kernel OCFS2 filesystem, discovered via local fuzzing of version 6.12.94 . The leak occurs when copy_file_range() is called within the same OCFS2 filesystem, triggering a copy-on-write path that fails to release deallocation caches (ocfs2_cache_block_d...

PT-2026-90212

Name of the Vulnerable Software and Affected Versions Linux kernel version 6.12.94 Description A memory leak exists in the ocfs2 component of the Linux kernel. This issue is triggered when performing a copy file range operation within the same filesystem. The leak occurs during copy-on-write...