CVE-2019-19770

HIGH

Linux Kernel < 4.19.83 - Use-After-Free in debugfs_remove

Title source: llm
STIX 2.1

Description

In the Linux kernel 4.19.83, there is a use-after-free (read) in the debugfs_remove function in fs/debugfs/inode.c (which is used to remove a file or directory in debugfs that was previously created with a call to another debugfs function such as debugfs_create_file). NOTE: Linux kernel developers dispute this issue as not being an issue with debugfs, instead this is an issue with misuse of debugfs within blktrace

References (5)

Core 5
Core References
Exploit, Issue Tracking, Vendor Advisory x_refsource_misc
https://bugzilla.kernel.org/show_bug.cgi?id=205713
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20200103-0001/
Mailing List mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html

Scores

CVSS v3 8.2
EPSS 0.0245
EPSS Percentile 82.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Details

CWE
CWE-416
Status published
Products (1)
linux/linux_kernel < 4.19.83
Published Dec 12, 2019
Tracked Since Feb 18, 2026