CVE-2026-53063
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.
Does this matter?
Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/05798d091ebcfb6d68228890e593f209e8ac940dPatch
- https://git.kernel.org/stable/c/4ca8b8bd952df7c3ccdc68af9bd3419d0839a04bPatch
- https://git.kernel.org/stable/c/64d6519b00be4116d365bd31f33a5e5ce2944c1aPatch
- https://git.kernel.org/stable/c/9fa18d0b981776b190ca4632942a7c2174052b78Patch
- https://git.kernel.org/stable/c/b8ace9e96983abb20ccf39edce8a60f1bb0b83d8Patch
- https://git.kernel.org/stable/c/ecb10c193cbebf5e6984246a9b4ff1f95d45ed87Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.