Answer in brief
CVE-2026-53063 records a Unknown severity vulnerability in dm cache: fix write hang in passthrough mode. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=b29d4986d0da1a27cd35917cdb433672f5c95d7f <9fa18d0b981776b190ca4632942a7c2174052b78 || >=b29d4986d0da1a27cd35917cdb433672f5c95d7f <ecb10c193cbebf5e6984246a9b4ff1f95d45ed87 || >=b29d4986d0da1a27cd35917cdb433672f5c95d7f <64d6519b00be4116d365bd31f33a5e5ce2944c1a || >=b29d4986d0da1a27cd35917cdb433672f5c95d7f <b8ace9e96983abb20ccf39edce8a60f1bb0b83d8 || >=b29d4986d0da1a27cd35917cdb433672f5c95d7f <05798d091ebcfb6d68228890e593f209e8ac940d || >=b29d4986d0da1a27cd35917cdb433672f5c95d7f <4ca8b8bd952df7c3ccdc68af9bd3419d0839a04b | 9fa18d0b981776b190ca4632942a7c2174052b78, ecb10c193cbebf5e6984246a9b4ff1f95d45ed87, 64d6519b00be4116d365bd31f33a5e5ce2944c1a, b8ace9e96983abb20ccf39edce8a60f1bb0b83d8, 05798d091ebcfb6d68228890e593f209e8ac940d, 4ca8b8bd952df7c3ccdc68af9bd3419d0839a04b |
| Linux/Linuxgeneric | 4.12 | Not reported |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
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.
Quoted source text, attributed separately from HOL analysis.