by Kastro
Paper/Archive/CVE-2026-74309

CVE-2026-74309

Linux Linux — vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler

EPSS 0.6%CVSS 10.0
critical.is priorityof 100
40
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 51.1.511 × 2010.2No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Linux26f8ce06af6475b33b0bc60261e9f5027f9af58f – < 3ef0cfa77a3d526591be069850d186c255e3f0cc3ef0cfa77a3d526591be069850d186c255e3f0ccCNA
Linux26f8ce06af6475b33b0bc60261e9f5027f9af58f – < c6c7eae5de798442987619434171ac886035d57cc6c7eae5de798442987619434171ac886035d57cCNA
Linux26f8ce06af6475b33b0bc60261e9f5027f9af58f – < 0d21a1d6375a05274291e32c1ab7cd57dbb695130d21a1d6375a05274291e32c1ab7cd57dbb69513CNA
Linux6.146.18.40CNA

Scores by source

Linux (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References

refgit.kernel.org/stable/c/3ef0cfa77a3d526591be069850d186c255e3f0ccrefgit.kernel.org/stable/c/c6c7eae5de798442987619434171ac886035d57crefgit.kernel.org/stable/c/0d21a1d6375a05274291e32c1ab7cd57dbb69513