CVE-2026-89838
HIGH
7,1
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: high
Description
AI Translation Available
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.
https://git.kernel.org/stable/c/01027b2fcb74dade59fb833b51023f6593b6a9a2
https://git.kernel.org/stable/c/317d32e1a8deaf1c01c388badc667334c39e62ca
https://git.kernel.org/stable/c/35c5abccd0924b02ad34126f562d93c8d75b0831