bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.6.33, 6.8.12, 6.9.3
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
From 3505cb9fa26cfec9512744466e754a8cbc2365b0 · fixed in 6675c541f540a29487a802d3135280b69b9f568d; From 3505cb9fa26cfec9512744466e754a8cbc2365b0 · fixed in 67929e973f5a347f05fef064fea4ae79e7cdb5fd; From 3505cb9fa26cfec9512744466e754a8cbc2365b0 · fixed in b34bbc76651065a5eafad8ddff1eb8d1f8473172; From 3505cb9fa26cfec9512744466e754a8cbc2365b0 · fixed in 543576ec15b17c0c93301ac8297333c7b6e84ac7
- Linux Linux
6.6
- KernelLinux
From 5.10.0 · fixed in 6.6.33; From 6.7.0 · fixed in 6.8.12; From 6.9.0 · fixed in 6.9.3