CRITICAL: CVE-2024-38612 (CVSS 9.8) — linux linux kernel

CVE: CVE-2024-38612

CVSS: 9.8 (3.1) — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: CRITICAL

Status: Critical advisory

Affected

• linux linux kernel

Summary

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.

Verified Sources

• NVD entry
• GitHub Advisory
• MITRE

References

• https://git.kernel.org/stable/c/00e6335329f23ac6cf3105931691674e28bc598c
• https://git.kernel.org/stable/c/10610575a3ac2a702bf5c57aa931beaf847949c7
• https://git.kernel.org/stable/c/160e9d2752181fcf18c662e74022d77d3164cd45
• https://git.kernel.org/stable/c/1a63730fb315bb1bab97edd69ff58ad45e04bb01
• https://git.kernel.org/stable/c/3398a40dccb88d3a7eef378247a023a78472db66
• https://git.kernel.org/stable/c/646cd236c55e2cb5f146fc41bbe4034c4af5b2a4
• https://git.kernel.org/stable/c/85a70ff1e572160f1eeb096ed48d09a1c9d4d89a
• https://git.kernel.org/stable/c/c04d6a914e890ccea4a9d11233009a2ee7978bf4
• https://git.kernel.org/stable/c/e77a3ec7ada84543e75722a1283785a6544de925
• https://git.kernel.org/stable/c/00e6335329f23ac6cf3105931691674e28bc598c

_Validated by the Lyrie Threat Intelligence Pipeline — 3 independent sources confirmed before publication. No speculation._