CVE-2024-38612

CRITICAL
Published Jun 19, 2024 Modified May 12, 2026 CWE-416 CWE-476

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.

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CVSS v3.1 Score

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

Weakness Type (CWE)

CWE-416 Use After Free
CWE-476 CWE-476

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

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 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

Frequently Asked Questions

What is CVE-2024-38612? +
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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2024-38612? +
CVE-2024-38612 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.
What products are affected by CVE-2024-38612? +
CVE-2024-38612 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-38612? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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