CVE-2025-68820CWE-476

CVE-2025-68820

published January 13, 2026

CVSS
—
EPSS
0%
Percentile
13.5
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

ext4: xattr: fix null pointer deref in ext4_raw_inode()

If ext4_get_inode_loc() fails (e.g. if it returns -EFSCORRUPTED),

iloc.bh will remain set to NULL. Since ext4_xattr_inode_dec_ref_all()

lacks error checking, this will lead to a null pointer dereference

in ext4_raw_inode(), called right after ext4_get_inode_loc().

Found by Linux Verification Center (linuxtesting.org) with SVACE.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00234 · 13.5th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2026-01-13T21:16Z
References (9)
EPSS history
Timeline
  • 13 JAN 15:29Z
    ext4: xattr: fix null pointer deref in ext4_raw_inode()
    cvelistv5