Security Advisory

CVE-2025-68820

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-01-13 15:29:23
Last updated 2026-07-14 12:44:25
Assigner Linux
CVSS score not scored
State PUBLISHED

Description

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.