CVE-2019-19036: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 1.8% chance of exploitation in the next 30 days.

btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcu_dereference(root->node) can be zero.

Affected products

• Linux Linux Kernel: up to and including 5.3.12

Published 2019-11-21. Last modified 2026-06-17.