In the Linux kernel before 5.0.6, there is a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links, aka CID-23da9588037e.
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.6
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.11
https://security.netapp.com/advisory/ntap-20200204-0002/
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
Source: MITRE
Published: 2019-12-28
Updated: 2023-01-20
Type: CWE-476
Base Score: 4.9
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.9
Severity: MEDIUM
Base Score: 5.5
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM