Description
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.
Metrics
CVSS 3.1 7.1/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HAffected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 4dd6f977fc778e5a0da604e5f8cb2f36d163d27b, < 454de20a5a36c000b75f49337aae8c92045c5242; >= 4dd6f977fc778e5a0da604e5f8cb2f36d163d27b, < 54c587f3f95ce2d6932a16566db83f73cc4313e1; >= 4dd6f977fc778e5a0da604e5f8cb2f36d163d27b, < bca61ee5192ea47003722486ae9588a2a4bb47b6; >= 4dd6f977fc778e5a0da604e5f8cb2f36d163d27b, < db13064669526494cd78ba3a4394063b740e940c; >= 4dd6f977fc778e5a0da604e5f8cb2f36d163d27b, < dcae1eeda53149f219dd6af93b3083b7271c1c63; >= 4dd6f977fc778e5a0da604e5f8cb2f36d163d27b, < e533889fc26aea0cd83c90327063f272061dd820 |
| Linux | Linux | 4.8 |
References
- https://git.kernel.org/stable/c/454de20a5a36c000b75f49337aae8c92045c5242
- https://git.kernel.org/stable/c/54c587f3f95ce2d6932a16566db83f73cc4313e1
- https://git.kernel.org/stable/c/bca61ee5192ea47003722486ae9588a2a4bb47b6
- https://git.kernel.org/stable/c/db13064669526494cd78ba3a4394063b740e940c
- https://git.kernel.org/stable/c/dcae1eeda53149f219dd6af93b3083b7271c1c63
- https://git.kernel.org/stable/c/e533889fc26aea0cd83c90327063f272061dd820
Timeline
- Published
- Sep 16, 2026
- Last modified
- Oct 30, 2026
- NVD status
- Received