Answer in brief
CVE-2025-21699 records a High severity (CVSS 7.8) vulnerability in gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag. 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.
CVSS is 7.8. 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 | >=2164f9b9186962ffb7c687e18ec6f5255525f09d <8c41abc11aa8438c9ed2d973f97e66674c0355df || >=2164f9b9186962ffb7c687e18ec6f5255525f09d <4e3ded34f3f3c9d7ed2aac7be8cf51153646574a || >=2164f9b9186962ffb7c687e18ec6f5255525f09d <2a40a140e11fec699e128170ccaa98b6b82cb503 || >=2164f9b9186962ffb7c687e18ec6f5255525f09d <4dd57d1f0e9844311c635a7fb39abce4f2ac5a61 || >=2164f9b9186962ffb7c687e18ec6f5255525f09d <4516febe325342555bb09ca5b396fb816d655821 || >=2164f9b9186962ffb7c687e18ec6f5255525f09d <5bb1fd0855bb0abc7d97e44758d6ffed7882d2d0 || >=2164f9b9186962ffb7c687e18ec6f5255525f09d <7c9d9223802fbed4dee1ae301661bf346964c9d2 | 8c41abc11aa8438c9ed2d973f97e66674c0355df, 4e3ded34f3f3c9d7ed2aac7be8cf51153646574a, 2a40a140e11fec699e128170ccaa98b6b82cb503, 4dd57d1f0e9844311c635a7fb39abce4f2ac5a61, 4516febe325342555bb09ca5b396fb816d655821, 5bb1fd0855bb0abc7d97e44758d6ffed7882d2d0, 7c9d9223802fbed4dee1ae301661bf346964c9d2 |
| Linux/Linuxgeneric | 5.10 | Not reported |
Published upstream
Feb 12, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag Truncate an inode's address space when flipping the GFS2_DIF_JDATA flag: depending on that flag, the pages in the address space will either use buffer heads or iomap_folio_state structs, and we cannot mix the two.
Quoted source text, attributed separately from HOL analysis.