CVE-2022-48912
kernel: netfilter: fix use-after-free in __nf_register_net_hook()
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 22, 2024
Updated · October 29, 2026
Description
A possible use-after-free was found in the Linux kernel in __nf_register_net_hook().
Statement
This issue is fixed in RHEL-9.1 and above (including 8.10):
in (rhel-8.7, rhel-8.8, rhel-8.9, rhel-8.10) netfilter: fix use-after-free in __nf_register_net_hook()
in (rhel-9.1, rhel-9.2, rhel-9.3, rhel-9.4, rhel-9.5) netfilter: fix use-after-free in __nf_register_net_hook()
Please note that while RHEL-9 kernel-rt still appears as affected, it has been fixed in the same RHSA as RHEL-9 kernel. This is because from RHEL-9.3 onwards, the kernel and kernel-rt fixes are bundled together in a single errata.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE-416 · Use After Free