net: ethernet: mtk_eth_soc: pass eth to mtk_handle_irq_rx in poll_controller
CVE-2026-80694 · published 28 Aug 2026
How serious is it
- Severity: critical, CVSS score 9.8 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-80694?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Linux Linux: 8186f6e382d8719d0a4bc0ef218c4dd7cf55b496 to < a9133c4d335e48ba92f4daed10c506378924f976, 8186f6e382d8719d0a4bc0ef218c4dd7cf55b496 to < 3bd58ac9ca0c552651f533c1bd280dd19ae7d4e8, 8186f6e382d8719d0a4bc0ef218c4dd7cf55b496 to < 276f1f180f55d56cf5992a581e20ed2b3dfa6ced, 8186f6e382d8719d0a4bc0ef218c4dd7cf55b496 to < 7eb46318d53940dab63dea7130e720b67a656104
- Linux Linux: 4.8
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: mtk_eth_soc: pass eth to mtk_handle_irq_rx in poll_controller
mtk_handle_irq_rx expects a struct mtk_eth * (matching the request_irq
cookie), but mtk_poll_controller incorrectly passed the net_device *.
Calling ndo_poll_controller with CONFIG_NET_POLL_CONTROLLER enabled
would then crash.
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/a9133c4d335e48ba92f4daed10c506378924f976
- git.kernel.org/stable/c/3bd58ac9ca0c552651f533c1bd280dd19ae7d4e8
- git.kernel.org/stable/c/276f1f180f55d56cf5992a581e20ed2b3dfa6ced
- git.kernel.org/stable/c/7eb46318d53940dab63dea7130e720b67a656104
- git.kernel.org/stable/c/e095f249e2209674f6366f6db0383a2b96e19239
Merged from CVE List. Last updated 26 Oct 2026. All vulnerabilities · RSS · JSON