High severity7.1NVD Advisory· Published Sep 16, 2026· Updated Oct 30, 2026
CVE-2026-89838
CVE-2026-89838
Description
In the Linux kernel, the following vulnerability has been resolved:
f2fs: limit recovery filename logging to stored length
F2FS stores recovery filenames as a length plus a fixed-size i_name buffer. The buffer is not NUL-terminated, but recover_inode() and recover_dentry() print it with %s.
For a 255-byte filename, recovery logging can read past i_name into the following raw inode fields.
Print the name with a precision bounded by i_namelen and F2FS_NAME_LEN.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- osv-coords2 versions
>= 3.11.0, < 6.6.160+ 1 more
- (no CPE)range: >= 3.11.0, < 6.6.160
- (no CPE)range: < 7.2.7-1.1
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/01027b2fcb74dade59fb833b51023f6593b6a9a2nvd
- git.kernel.org/stable/c/317d32e1a8deaf1c01c388badc667334c39e62canvd
- git.kernel.org/stable/c/35c5abccd0924b02ad34126f562d93c8d75b0831nvd
- git.kernel.org/stable/c/3d02c7c8446f5d6793ac67f93bf3f84bf24e3f25nvd
- git.kernel.org/stable/c/450ab2e5dbe0ef6e3ed73214256565f6f003d62anvd
- git.kernel.org/stable/c/7ab1780074943508534343e1e5e5ab0c9ef9dd7bnvd
- git.kernel.org/stable/c/b8ac8b14b9d92dd2e1cb05fa8994f41f701fbf28nvd
- git.kernel.org/stable/c/e754120f8ede55cc773ade108cf7e5b17c859c46nvd
News mentions
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