Vulnerability Intelligence Report
vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-74309
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.
No Active Exploit Signals
CVSS Base Score
10.0
CRITICAL
Exploitability:3.9
Impact Score:6.1
EPSS Probability:0.17%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
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Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Linux | Linux | 26f8ce06af6475b33b0bc60261e9f5027f9af58f < 3ef0cfa77a3d526591be069850d186c255e3f0cc (affected), 26f8ce06af6475b33b0bc60261e9f5027f9af58f < c6c7eae5de798442987619434171ac886035d57c (affected), 26f8ce06af6475b33b0bc60261e9f5027f9af58f < 0d21a1d6375a05274291e32c1ab7cd57dbb69513 (affected) |
| Linux | Linux | 6.14 (affected), 0 < 6.14 (unaffected), 6.18.40 <= 6.18.* (unaffected), 7.1.5 <= 7.1.* (unaffected), 7.2 <= * (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.166%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | kernel.org · Vendor · USA |
| Reserved | 2026-08-15T05:44:03 |
| Published | 2026-08-15T05:58:09 |
| Last Updated | 2026-08-17T05:45:41 |
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