What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 10.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-08-17

Description

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 products

• Linux kernel: 6.14 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

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

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