Vulnerability 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.
CVSS Score
CRITICAL
References
- https://git.kernel.org/stable/c/0d21a1d6375a05274291e32c1ab7cd57dbb69513
- https://git.kernel.org/stable/c/3ef0cfa77a3d526591be069850d186c255e3f0cc
- https://git.kernel.org/stable/c/c6c7eae5de798442987619434171ac886035d57c
FAQ
What is CVE-2026-74309?
CVE-2026-74309 is a vulnerability with a CVSS score of 10.0 (CRITICAL). 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[...
How severe is CVE-2026-74309?
CVE-2026-74309 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-74309?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.