A double-free can happen in idr_remove_all() in lib/idr.c in the Linux kernel 2.6 branch. An unprivileged local attacker can use this flaw for a privilege escalation or for a system crash and a denial of service (DoS).
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3896
http://www.securityfocus.com/bid/108814
https://support.f5.com/csp/article/K04327111
https://security.netapp.com/advisory/ntap-20190710-0002/
Source: Mitre, NVD
Published: 2019-06-19
Updated: 2023-02-12
Base Score: 7.2
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
Severity: High
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.0011