CVE-2024-38564

bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE bpf_prog_attach uses attach_type_to_prog_type to enforce proper attach type for BPF_PROG_TYPE_CGROUP_SKB. link_create uses bpf_prog_get and relies on bpf_prog_attach_check_attach_type to properly verify prog_type <> attach_type association. Add missing attach_type enforcement for the link_create case. Otherwise, it's currently possible to attach cgroup_skb prog types to other cgroup hooks.

N/A

CVSS

Severity:

EPSS 0.13%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/6675c541f540a29487a802d3135280b69b9f568d
https://git.kernel.org/stable/c/67929e973f5a347f05fef064fea4ae79e7cdb5fd
https://git.kernel.org/stable/c/b34bbc76651065a5eafad8ddff1eb8d1f8473172
https://git.kernel.org/stable/c/543576ec15b17c0c93301ac8297333c7b6e84ac7

Frequently Asked Questions

What is the severity of CVE-2024-38564?: CVE-2024-38564 has not yet been assigned a CVSS score.
How to fix CVE-2024-38564?: To fix CVE-2024-38564, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-38564 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-38564 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-38564?: CVE-2024-38564 affects Linux Linux, Linux Linux.

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