Answer in brief
CVE-2026-89840 records a High severity (CVSS 7.1) vulnerability in f2fs: validate MOVE_RANGE destination size. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic) and additional mapped packages. 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 7.1. 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), Linux/Linux (generic), Linux/Linux (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <bca61ee5192ea47003722486ae9588a2a4bb47b6 || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <db13064669526494cd78ba3a4394063b740e940c || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <dcae1eeda53149f219dd6af93b3083b7271c1c63 || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <e533889fc26aea0cd83c90327063f272061dd820 | bca61ee5192ea47003722486ae9588a2a4bb47b6, db13064669526494cd78ba3a4394063b740e940c, dcae1eeda53149f219dd6af93b3083b7271c1c63, e533889fc26aea0cd83c90327063f272061dd820 |
| Linux/Linuxgeneric | 4.8 | Not reported |
| Linux/Linuxgeneric | >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <dcae1eeda53149f219dd6af93b3083b7271c1c63 || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <e533889fc26aea0cd83c90327063f272061dd820 | dcae1eeda53149f219dd6af93b3083b7271c1c63, e533889fc26aea0cd83c90327063f272061dd820 |
| Linux/Linuxgeneric | >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <db13064669526494cd78ba3a4394063b740e940c || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <dcae1eeda53149f219dd6af93b3083b7271c1c63 || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <e533889fc26aea0cd83c90327063f272061dd820 | db13064669526494cd78ba3a4394063b740e940c, dcae1eeda53149f219dd6af93b3083b7271c1c63, e533889fc26aea0cd83c90327063f272061dd820 |
| Linux/Linuxgeneric | >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <54c587f3f95ce2d6932a16566db83f73cc4313e1 || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <bca61ee5192ea47003722486ae9588a2a4bb47b6 || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <db13064669526494cd78ba3a4394063b740e940c || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <dcae1eeda53149f219dd6af93b3083b7271c1c63 || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <e533889fc26aea0cd83c90327063f272061dd820 | 54c587f3f95ce2d6932a16566db83f73cc4313e1, bca61ee5192ea47003722486ae9588a2a4bb47b6, db13064669526494cd78ba3a4394063b740e940c, dcae1eeda53149f219dd6af93b3083b7271c1c63, e533889fc26aea0cd83c90327063f272061dd820 |
| Linux/Linuxgeneric | >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <454de20a5a36c000b75f49337aae8c92045c5242 || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <54c587f3f95ce2d6932a16566db83f73cc4313e1 || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <bca61ee5192ea47003722486ae9588a2a4bb47b6 || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <db13064669526494cd78ba3a4394063b740e940c || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <dcae1eeda53149f219dd6af93b3083b7271c1c63 || >=4dd6f977fc778e5a0da604e5f8cb2f36d163d27b <e533889fc26aea0cd83c90327063f272061dd820 | 454de20a5a36c000b75f49337aae8c92045c5242, 54c587f3f95ce2d6932a16566db83f73cc4313e1, bca61ee5192ea47003722486ae9588a2a4bb47b6, db13064669526494cd78ba3a4394063b740e940c, dcae1eeda53149f219dd6af93b3083b7271c1c63, e533889fc26aea0cd83c90327063f272061dd820 |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 16, 2026
In the Linux kernel, the following vulnerability has been resolved: f2fs: validate MOVE_RANGE destination size F2FS_IOC_MOVE_RANGE checks the source range, but not the destination end before updating i_size. A source hole can expose this: __clone_blkaddrs() skips NULL_ADDR entries and returns success, so the caller can still extend the destination inode with unchecked pos_out + len. Reject destination overflow and use inode_newsize_ok() before extending the destination inode.
Quoted source text, attributed separately from HOL analysis.