CVE-2026-89838

f2fs: limit recovery filename logging to stored length

HIGH
7.1
CVSS Score
Published: September 16, 2026 at 10:31 AM UTC
Updated: October 30, 2026 at 01:20 PM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.1
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.11f356fe0cba0e3523e538987916bd2acedd4e6f41
Vendor states this is fixed in 01027b2fcb74dade59fb833b51023f6593b6a9a2 (fixed)
Vendor states this is fixed in 317d32e1a8deaf1c01c388badc667334c39e62ca (fixed)
Vendor states this is fixed in 35c5abccd0924b02ad34126f562d93c8d75b0831 (fixed)
Vendor states this is fixed in 7ab1780074943508534343e1e5e5ab0c9ef9dd7b (fixed)
Vendor states this is fixed in 3.11 (unaffected)
Vendor states this is fixed in 6.12.112 (unaffected)
Vendor states this is fixed in 6.18.53 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)
Vendor states this is fixed in 7.2.5 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

7.1HIGHLinux
Vector?

Quick Info

StatusRECEIVED

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card