Bug 2525376 (CVE-2026-80694) - CVE-2026-80694 kernel: net: ethernet: mtk_eth_soc: pass eth to mtk_handle_irq_rx in poll_controller
Summary: CVE-2026-80694 kernel: net: ethernet: mtk_eth_soc: pass eth to mtk_handle_irq...
Keywords:
Status: NEW
Alias: CVE-2026-80694
Product: Security Response
Classification: Other
Component: vulnerability-draft
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-28 07:41 UTC by OSIDB Bzimport
Modified: 2026-09-03 07:06 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Last Closed:
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Description OSIDB Bzimport 2026-08-28 07:41:48 UTC 
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.
Comment 1 gkamathe 2026-08-31 07:27:07 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026082804-CVE-2026-80694-a162@gregkh/T
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