Vulnerability record · CVE-2019-19813 · published 17 December 2019

CVE-2019-19813: Linux kernel use after free vulnerability

Linux · Linux Kernel

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in __mutex_lock in kernel/locking/mutex.c. This is related to mutex_can_spin_on_owner in kernel/locking/mutex.c, __btrfs_qgroup_free_meta in fs/btrfs/qgroup.c, and btrfs_insert_delayed_items in fs/btrfs/delayed-inode.c.

5.5 CVSS 3.1 Medium EPSS 2.1% · top 18.6% CWE-416 · Use after free

5.5CVSS 3.1 base score, v2 7.1

2.1%EPSS exploitation probability, 30 days

NoNot in CISA KEV

13Affected product versions listed by NVD

10References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

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

Affected products

13 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Ubuntu Linux Canonical

Debian Linux Debian

Linux Kernel Linux NActive Iq Unified Manager Netapp NAff A400 Firmware Netapp NAff A700s Firmware Netapp NData Availability Services Netapp NFas8300 Firmware Netapp NFas8700 Firmware Netapp NH610s Firmware Netapp NHci Management Node Netapp NSolidfire Netapp NSteelstore Cloud Integrated Storage Netapp

References

Link	Tags
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19813	ExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html	Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html	Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20200103-0001/	Third Party Advisory
https://usn.ubuntu.com/4414-1/	Third Party Advisory
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19813	ExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html	Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html	Mailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20200103-0001/	Third Party Advisory
https://usn.ubuntu.com/4414-1/	Third Party Advisory

Track CVE-2019-19813 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Source: NIST National Vulnerability Database (record CVE-2019-19813), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.