What’s Vulnerable › Vulnerabilities

CVE-2019-19036

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-11-21 · updated 2026-06-17
• Weakness: CWE-476

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.

Affected products

• Linux kernel: through 5.3.12

References

• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
• https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19036
• https://security.netapp.com/advisory/ntap-20191205-0001/
• https://usn.ubuntu.com/4414-1/
• https://usn.ubuntu.com/4439-1/
• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
• https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19036
• https://security.netapp.com/advisory/ntap-20191205-0001/
• https://usn.ubuntu.com/4414-1/
• https://usn.ubuntu.com/4439-1/

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