CVE-2026-53063
UnknownSummary
A vulnerability has been identified in the Linux kernel within the invalidate_remove() function, leading to write operation hangs in passthrough mode. The issue arises from incomplete logic for handling write hit bios after cache invalidation.
Risk Assessment
This vulnerability may result in write operation hangs, affecting system performance and stability. Organizations could face data availability issues and decreased application performance.
Recommendation
It is recommended to update the Linux kernel to the latest version to mitigate this vulnerability and improve error handling in the invalidate_complete() function.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: dm cache: fix write hang in passthrough mode The invalidate_remove() function has incomplete logic for handling write hit bios after cache invalidation. It sets up the remapping for the overwrite_bio but then drops it immediately without submission, causing write operations to hang. Fix by adding a new invalidate_committed() continuation that submits the remapped writes to the cache origin after metadata commit completes, while using the overwrite_endio hook to ensure proper completion sequencing. This maintains existing coherency. Also improve error handling in invalidate_complete() to preserve the original error status instead of using bio_io_error() unconditionally.