CVE-2024-38564

High

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.

SeverityHigh
CVSS7.8
Exploit probability—
ProductLinux Kernel
PublishedJun 19, 2024
First seenJun 19, 2024

How to fix

Update
  • linux linux_kernel6.6.33, 6.8.12, 6.9.3 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel5.10 ≤ v < 6.6.33, 6.7 ≤ v < 6.8.12, 6.9 ≤ v < 6.9.36.6.33, 6.8.12, 6.9.3

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