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.
References (5)
Core 5
Core References
Exploit, Third Party Advisory x_refsource_misc
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19036
Vendor Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20191205-0001/
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4414-1/
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4439-1/
Scores
CVSS v3
5.5
EPSS
0.0184
EPSS Percentile
76.3%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details
CWE
CWE-476
Status
published
Products (1)
linux/linux_kernel
< 5.3.12
Published
Nov 21, 2019
Tracked Since
Feb 18, 2026