by Kastro
Paper/Archive/CVE-2026-80694

CVE-2026-80694

Linux Linux — net: ethernet: mtk_eth_soc: pass eth to mtk_handle_irq_rx in poll_controller

EPSS 0.5%CVSS 9.8
critical.is priorityof 100
37
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 39.6.396 × 207.9No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Linux8186f6e382d8719d0a4bc0ef218c4dd7cf55b496 – < a9133c4d335e48ba92f4daed10c506378924f976a9133c4d335e48ba92f4daed10c506378924f976CNA
Linux8186f6e382d8719d0a4bc0ef218c4dd7cf55b496 – < 3bd58ac9ca0c552651f533c1bd280dd19ae7d4e83bd58ac9ca0c552651f533c1bd280dd19ae7d4e8CNA
Linux8186f6e382d8719d0a4bc0ef218c4dd7cf55b496 – < 276f1f180f55d56cf5992a581e20ed2b3dfa6ced276f1f180f55d56cf5992a581e20ed2b3dfa6cedCNA
Linux8186f6e382d8719d0a4bc0ef218c4dd7cf55b496 – < 7eb46318d53940dab63dea7130e720b67a6561047eb46318d53940dab63dea7130e720b67a656104CNA
Linux8186f6e382d8719d0a4bc0ef218c4dd7cf55b496 – < e095f249e2209674f6366f6db0383a2b96e19239e095f249e2209674f6366f6db0383a2b96e19239CNA
Linux4.8–CNA

Scores by source

Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refgit.kernel.org/stable/c/a9133c4d335e48ba92f4daed10c506378924f976refgit.kernel.org/stable/c/3bd58ac9ca0c552651f533c1bd280dd19ae7d4e8refgit.kernel.org/stable/c/276f1f180f55d56cf5992a581e20ed2b3dfa6cedrefgit.kernel.org/stable/c/7eb46318d53940dab63dea7130e720b67a656104refgit.kernel.org/stable/c/e095f249e2209674f6366f6db0383a2b96e19239