CVE-2024-38612

CRITICAL

Linux Kernel - Use-After-Free in IPv6 Segment Routing Error Path

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: fix invalid unregister error path The error path of seg6_init() is wrong in case CONFIG_IPV6_SEG6_LWTUNNEL is not defined. In that case if seg6_hmac_init() fails, the genl_unregister_family() isn't called. This issue exist since commit 46738b1317e1 ("ipv6: sr: add option to control lwtunnel support"), and commit 5559cea2d5aa ("ipv6: sr: fix possible use-after-free and null-ptr-deref") replaced unregister_pernet_subsys() with genl_unregister_family() in this error path.

References (13)

Core 13
Core References

Scores

CVSS v3 9.8
EPSS 0.0111
EPSS Percentile 61.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-416 CWE-476
Status published
Products (29)
linux/Kernel 4.10.0 - 4.19.316linux
linux/Kernel 4.20.0 - 5.4.278linux
linux/Kernel 5.11.0 - 5.15.161linux
linux/Kernel 5.16.0 - 6.1.93linux
linux/Kernel 5.5.0 - 5.10.219linux
linux/Kernel 6.2.0 - 6.6.33linux
linux/Kernel 6.7.0 - 6.8.12linux
linux/Kernel 6.9.0 - 6.9.3linux
Linux/Linux < 4.10
Linux/Linux 4.10
... and 19 more
Published Jun 19, 2024
Tracked Since Feb 18, 2026