CVE-2026-53063

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> dm cache: fix write hang in passthrough mode<br /> <br /> The invalidate_remove() function has incomplete logic for handling write<br /> hit bios after cache invalidation. It sets up the remapping for the<br /> overwrite_bio but then drops it immediately without submission, causing<br /> write operations to hang.<br /> <br /> Fix by adding a new invalidate_committed() continuation that submits<br /> the remapped writes to the cache origin after metadata commit completes,<br /> while using the overwrite_endio hook to ensure proper completion<br /> sequencing. This maintains existing coherency. Also improve error<br /> handling in invalidate_complete() to preserve the original error status<br /> instead of using bio_io_error() unconditionally.