CVE-2026-74309
CVE-2026-74309: 1 tracked advisory record across Red Hat. Compare vendor sources.
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Red Hat
1 advisory- Advisory severityMedium5.5
Medium [CVE-2026-74309] fix IRQ-to-ring mapping in interrupt handler
CVE-2026-74309Source published Source updated
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. This vulnerability involves an incorrect mapping of Interrupt Request (IRQ) numbers to processing rings within the interrupt handler. The system incorrectly calculates the IRQ index, which can lead to misdirected or mishandled interrupts. This issue could potentially cause system instability or unexpected operational behavior. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-131. Red Hat lists Red Hat Enterprise Linux 10; Red Hat…
- Affected products in this advisory
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- Source-reported affected versions
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- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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