CVE-2024-50123

bpf: Add the missing BPF_LINK_TYPE invocation for sockmap

State: Published
Severity: 7.1 High
Published: Nov 5, 2024
Updated: Aug 5, 2026
Reserved: Oct 21, 2024

Description

In the Linux kernel, the following vulnerability has been resolved:

bpf: Add the missing BPF_LINK_TYPE invocation for sockmap

There is an out-of-bounds read in bpf_link_show_fdinfo() for the sockmap link fd. Fix it by adding the missing BPF_LINK_TYPE invocation for sockmap link

Also add comments for bpf_link_type to prevent missing updates in the future.

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H	Linux
3.1	7.1 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H	CISA-ADP

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
LinuxLinux	699c23f02c65cbfc3e638f14ce0d70c23a2e1f02 to before 6d79f12c0ce2bc8ff5f109093df1734bd6450615Affected 699c23f02c65cbfc3e638f14ce0d70c23a2e1f02 to before c2f803052bc7a7feb2e03befccc8e49b6ff1f5f5Affected
LinuxLinux	6.10Affected before 6.10Not affected 6.11.6 through 6.11.*Not affected 6.12 and laterNot affected

References

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