CVE-2026-89838
High
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.
SeverityHigh
CVSS7.1
Exploit probability—
Product
Linux
PublishedSep 16, 2026
First seenSep 16, 2026
How to fix
Update
- Linux Linuxb8ac8b14b9d92dd2e1cb05fa8994f41f701fbf28, 450ab2e5dbe0ef6e3ed73214256565f6f003d62a, 3d02c7c8446f5d6793ac67f93bf3f84bf24e3f25, e754120f8ede55cc773ade108cf7e5b17c859c46, 7ab1780074943508534343e1e5e5ab0c9ef9dd7b, 35c5abccd0924b02ad34126f562d93c8d75b0831, 317d32e1a8deaf1c01c388badc667334c39e62ca, 01027b2fcb74dade59fb833b51023f6593b6a9a2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | f356fe0cba0e3523e538987916bd2acedd4e6f41 ≤ v < b8ac8b14b9d92dd2e1cb05fa8994f41f701fbf28, f356fe0cba0e3523e538987916bd2acedd4e6f41 ≤ v < 450ab2e5dbe0ef6e3ed73214256565f6f003d62a, f356fe0cba0e3523e538987916bd2acedd4e6f41 ≤ v < 3d02c7c8446f5d6793ac67f93bf3f84bf24e3f25, f356fe0cba0e3523e538987916bd2acedd4e6f41 ≤ v < e754120f8ede55cc773ade108cf7e5b17c859c46, f356fe0cba0e3523e538987916bd2acedd4e6f41 ≤ v < 7ab1780074943508534343e1e5e5ab0c9ef9dd7b, f356fe0cba0e3523e538987916bd2acedd4e6f41 ≤ v < 35c5abccd0924b02ad34126f562d93c8d75b0831, f356fe0cba0e3523e538987916bd2acedd4e6f41 ≤ v < 317d32e1a8deaf1c01c388badc667334c39e62ca, f356fe0cba0e3523e538987916bd2acedd4e6f41 ≤ v < 01027b2fcb74dade59fb833b51023f6593b6a9a2, 3.11 | b8ac8b14b9d92dd2e1cb05fa8994f41f701fbf28, 450ab2e5dbe0ef6e3ed73214256565f6f003d62a, 3d02c7c8446f5d6793ac67f93bf3f84bf24e3f25, e754120f8ede55cc773ade108cf7e5b17c859c46, 7ab1780074943508534343e1e5e5ab0c9ef9dd7b, 35c5abccd0924b02ad34126f562d93c8d75b0831, 317d32e1a8deaf1c01c388badc667334c39e62ca, 01027b2fcb74dade59fb833b51023f6593b6a9a2 |
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