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CVE-2019-19036

Description

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.

POC

Reference

- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19036

- https://usn.ubuntu.com/4414-1/

Github

- https://github.com/DelspoN/CVE