HIGH 7.1 NVD
CVE-2026-89840
In the Linux kernel, the following vulnerability has been resolved: f2fs: validate MOVE_RANGE destination size F2FS_IOC_MOVE_RANGE checks the source range, bu
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.
References
- https://git.kernel.org/stable/c/dcae1eeda53149f219dd6af93b3083b7271c1c63
- https://git.kernel.org/stable/c/e533889fc26aea0cd83c90327063f272061dd820
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-09-16 via NVD.
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