Critical 10.0Published Aug 15, 2026

CVE-2026-74309vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler

Updated under an hour ago (Oct 27, 2026, 1:40 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler Look up the IRQ index in oct_hw->irqs instead of assuming irq - irqs[0]. This supports non-contiguous IRQ numbers and avoids incorrect ring indexing when irqs[0] is not the base.

CVSS: 10.0 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Aug 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	26f8ce06af6475b33b0bc60261e9f5027f9af58f builds before 3ef0cfa77a3d526591be069850d186c255e3f0cc; from 26f8ce06af6475b33b0bc60261e9f5027f9af58f before c6c7eae5de798442987619434171ac886035d57c; 26f8ce06af6475b33b0bc60261e9f5027f9af58f builds before 0d21a1d6375a05274291e32c1ab7cd57dbb69513	CNA record

References

References

https://git.kernel.org/stable/c/3ef0cfa77a3d526591be069850d186c255e3f0cc
https://git.kernel.org/stable/c/c6c7eae5de798442987619434171ac886035d57c
https://git.kernel.org/stable/c/0d21a1d6375a05274291e32c1ab7cd57dbb69513

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.