CVE Database›Document archive›CVE-2019-19036

CVE-2019-19036

kernel: null-pointer dereference in btrfs_root_node in fs/btrfs/ctree.c

Loading…

Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · November 18, 2019

Updated · June 28, 2026

Description

A NULL pointer dereference flaw in the btrfs_root_node in fs/btrfs/ctree.c may occur if the rcu_dereference function return is not validated in time of failure. This flaw could allow an attacker to crash the system or leak internal kernel information.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference