CVE-2019-19448
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2019-19448
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19448.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2019-19448
- Downstream
- Related
- Published
- 2019-12-08T02:15:09Z
- Modified
- 2025-08-09T19:01:27Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in trymergefree_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure.
- References
-
- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19448
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
- https://security.netapp.com/advisory/ntap-20200103-0001/
- https://usn.ubuntu.com/4578-1/