Answer in brief
CVE-2026-53061 records a Unknown severity vulnerability in dm cache: fix dirty mapping checking in passthrough mode switching. 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 | >=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <c2e86f647561fcf5e1c6eba7d75e9e0c4299c94d || >=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <5c98a3f1d7a554c9e920aa31daf92af6b5bbb8cc || >=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <1443c32f24d6d8bcdf4beceef2afc09290b98717 || >=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <12105c7f18375d7615dad7605d89eadae7eb12a6 || >=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <bd5a2c1018938e6b32670728bdb32a3f0efff00f || >=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <21c503d60a257e54ca3ac58e2721bd24501d5bde || >=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <01b22656d8a68dbeae59f8b80866e7b11936b20a || >=2ee57d587357f0d752af6c2e3e46434a74b1bee3 <322586745bd1a0e5f3559fd1635fdeb4dbd1d6b8 | c2e86f647561fcf5e1c6eba7d75e9e0c4299c94d, 5c98a3f1d7a554c9e920aa31daf92af6b5bbb8cc, 1443c32f24d6d8bcdf4beceef2afc09290b98717, 12105c7f18375d7615dad7605d89eadae7eb12a6, bd5a2c1018938e6b32670728bdb32a3f0efff00f, 21c503d60a257e54ca3ac58e2721bd24501d5bde, 01b22656d8a68dbeae59f8b80866e7b11936b20a, 322586745bd1a0e5f3559fd1635fdeb4dbd1d6b8 |
| Linux/Linuxgeneric | 3.13 | 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 dirty mapping checking in passthrough mode switching As mentioned in commit 9b1cc9f251af ("dm cache: share cache-metadata object across inactive and active DM tables"), dm-cache assumed table reload occurs after suspension, while LVM's table preload breaks this assumption. The dirty mapping check for passthrough mode was designed around this assumption and is performed during table creation, causing the check to fail with preload while metadata updates are ongoing. This risks loading dirty mappings into passthrough mode, resulting in data loss. Reproduce steps: 1. Create a writeback cache with zero migration_threshold to produce dirty mappings dmsetup create cmeta --table "0 8192 linear /dev/sdc 0" dmsetup create cdata --table "0 131072 linear /dev/sdc 8192" dmsetup create corig --table "0 262144 linear /dev/sdc 262144" dd if=/dev/zero of=/dev/mapper/cmeta bs=4k count=1 oflag=direct dmsetup create cache --table "0 262144 cache /dev/mapper/cmeta \ /dev/mapper/cdata /dev/mapper/corig 128 2 metadata2 writeback smq \ 2 migration_threshold 0" 2. Preload a table in passthrough mode dmsetup reload cache --table "0 262144 cache /dev/mapper/cmeta \ /dev/mapper/cdata /dev/mapper/corig 128 2 metadata2 passthrough smq 0" 3. Write to the first cache block to make it dirty fio --filename=/dev/mapper/cache --name=populate --rw=write --bs=4k \ --direct=1 --size=64k 4. Resume the inactive table. Now it's possible to load the dirty block into passthrough mode. dmsetup resume cache Fix by moving the checks to the preresume phase to support table preloading. Also remove the unused function dm_cache_metadata_all_clean.
Quoted source text, attributed separately from HOL analysis.