CVE-2024-38612

ipv6: sr: fix invalid unregister error path

State: Published
Severity: 7.0 High
Published: Jun 19, 2024
Updated: Oct 15, 2026
Reserved: Jun 18, 2024

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.

Scores

CVSS	Score	Vector	Source
3.1	7.0 High	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-476 NULL Pointer Dereference
CWE-416 Use After Free

Affected Products

Product	Versions
LinuxLinux	46738b1317e169b281ad74690276916e24d1be6d to before 10610575a3ac2a702bf5c57aa931beaf847949c7Affected 46738b1317e169b281ad74690276916e24d1be6d to before 646cd236c55e2cb5f146fc41bbe4034c4af5b2a4Affected 46738b1317e169b281ad74690276916e24d1be6d to before 00e6335329f23ac6cf3105931691674e28bc598cAffected 46738b1317e169b281ad74690276916e24d1be6d to before 1a63730fb315bb1bab97edd69ff58ad45e04bb01Affected 46738b1317e169b281ad74690276916e24d1be6d to before e77a3ec7ada84543e75722a1283785a6544de925Affected 46738b1317e169b281ad74690276916e24d1be6d to before 3398a40dccb88d3a7eef378247a023a78472db66Affected 46738b1317e169b281ad74690276916e24d1be6d to before 85a70ff1e572160f1eeb096ed48d09a1c9d4d89aAffected 46738b1317e169b281ad74690276916e24d1be6d to before c04d6a914e890ccea4a9d11233009a2ee7978bf4Affected 46738b1317e169b281ad74690276916e24d1be6d to before 160e9d2752181fcf18c662e74022d77d3164cd45Affected
LinuxLinux	4.10Affected before 4.10Not affected 4.19.316 through 4.19.Not affected 5.4.278 through 5.4.Not affected 5.10.219 through 5.10.Not affected 5.15.161 through 5.15.Not affected 6.1.93 through 6.1.Not affected 6.6.33 through 6.6.Not affected 6.8.12 through 6.8.Not affected 6.9.3 through 6.9.Not affected 6.10 and laterNot affected

Product

Versions

LinuxLinux

46738b1317e169b281ad74690276916e24d1be6d to before 10610575a3ac2a702bf5c57aa931beaf847949c7Affected
46738b1317e169b281ad74690276916e24d1be6d to before 646cd236c55e2cb5f146fc41bbe4034c4af5b2a4Affected
46738b1317e169b281ad74690276916e24d1be6d to before 00e6335329f23ac6cf3105931691674e28bc598cAffected
46738b1317e169b281ad74690276916e24d1be6d to before 1a63730fb315bb1bab97edd69ff58ad45e04bb01Affected
46738b1317e169b281ad74690276916e24d1be6d to before e77a3ec7ada84543e75722a1283785a6544de925Affected
46738b1317e169b281ad74690276916e24d1be6d to before 3398a40dccb88d3a7eef378247a023a78472db66Affected
46738b1317e169b281ad74690276916e24d1be6d to before 85a70ff1e572160f1eeb096ed48d09a1c9d4d89aAffected
46738b1317e169b281ad74690276916e24d1be6d to before c04d6a914e890ccea4a9d11233009a2ee7978bf4Affected
46738b1317e169b281ad74690276916e24d1be6d to before 160e9d2752181fcf18c662e74022d77d3164cd45Affected

LinuxLinux

4.10Affected
before 4.10Not affected
4.19.316 through 4.19.*Not affected
5.4.278 through 5.4.*Not affected
5.10.219 through 5.10.*Not affected
5.15.161 through 5.15.*Not affected
6.1.93 through 6.1.*Not affected
6.6.33 through 6.6.*Not affected
6.8.12 through 6.8.*Not affected
6.9.3 through 6.9.*Not affected
6.10 and laterNot affected

References

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