CVE-2024-38612

critical

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

https://git.kernel.org/stable/c/e77a3ec7ada84543e75722a1283785a6544de925

https://git.kernel.org/stable/c/c04d6a914e890ccea4a9d11233009a2ee7978bf4

https://git.kernel.org/stable/c/85a70ff1e572160f1eeb096ed48d09a1c9d4d89a

https://git.kernel.org/stable/c/646cd236c55e2cb5f146fc41bbe4034c4af5b2a4

https://git.kernel.org/stable/c/3398a40dccb88d3a7eef378247a023a78472db66

https://git.kernel.org/stable/c/1a63730fb315bb1bab97edd69ff58ad45e04bb01

https://git.kernel.org/stable/c/160e9d2752181fcf18c662e74022d77d3164cd45

https://git.kernel.org/stable/c/10610575a3ac2a702bf5c57aa931beaf847949c7

https://git.kernel.org/stable/c/00e6335329f23ac6cf3105931691674e28bc598c

Details

Source: Mitre, NVD

Published: 2024-06-19

Updated: 2024-07-15

Risk Information

CVSS v2

Base Score: 6.9

Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical