CVE-2018-1095: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 1.4% chance of exploitation in the next 30 days.

The ext4_xattr_check_entries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service (get_acl NULL pointer dereference and system crash) via a crafted ext4 image.

Affected products

• Linux Linux Kernel: up to and including 4.15.15

Published 2018-04-02. Last modified 2026-06-17.