Improper Initialization Affecting kernel-debug package, versions <0:4.18.0-372.121.1.el8_6
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Test your applications- Snyk ID SNYK-RHEL8-KERNELDEBUG-7891769
- published 4 Sep 2024
- disclosed 19 Jun 2024
Introduced: 19 Jun 2024
CVE-2024-38564 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-debug to version 0:4.18.0-372.121.1.el8_6 or higher.
This issue was patched in RHSA-2024:6297.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug package and not the kernel-debug package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2024-38564
- https://git.kernel.org/stable/c/543576ec15b17c0c93301ac8297333c7b6e84ac7
- https://git.kernel.org/stable/c/6675c541f540a29487a802d3135280b69b9f568d
- https://git.kernel.org/stable/c/67929e973f5a347f05fef064fea4ae79e7cdb5fd
- https://git.kernel.org/stable/c/b34bbc76651065a5eafad8ddff1eb8d1f8473172