CVE-2026-98430

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/efa: Keep admin queues alive while IRQ is registered The management IRQ handler accesses both the admin completion queue and the async event queue. The driver registered the IRQ before constructing these queues and destroyed them before freeing the IRQ, so the handler's lifetime was not contained by the resources it accesses. Initialize the queues with interrupts masked, request the IRQ, and then switch to interrupt mode. On removal, reset the device and free the IRQ before destroying the queues. Also reset the device before destroying the queues if IRQ registration fails, because the device already has their DMA addresses.

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EPSS — Exploit Prediction

0.0022

Probability of exploitation

0.12%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/00f7df59543cce445cfd2f109ace88c17d8aef4d https://git.kernel.org/stable/c/0a8a105978e5ace0d885964317c5aed8ab4c0a0c https://git.kernel.org/stable/c/bc7e64bad96c23fb343f47689670d0037f1a65e7 https://git.kernel.org/stable/c/cf5520d1c931a70ccce0a1a247113bcec47a42be https://git.kernel.org/stable/c/d2a1c0bf4139c17b8d7668322b78c28d8c5b2dd0 https://git.kernel.org/stable/c/e08aca85c02ff290f785f07acae758f0daf5f49e

Frequently Asked Questions

What is CVE-2026-98430? +

In the Linux kernel, the following vulnerability has been resolved: RDMA/efa: Keep admin queues alive while IRQ is registered The management IRQ handler accesses both the admin completion queue and the async event queue. The driver registered the IRQ before constructing these queues and destroyed them before freeing the IRQ, so the handler's lifetime was not contained by the resources it accesses. Initialize the queues with interrupts masked, request the IRQ, and then switch to interrupt mode. On removal, reset the device and free the IRQ before destroying the queues. Also reset the device before destroying the queues if IRQ registration fails, because the device already has their DMA addresses.

How do I check if I'm vulnerable to CVE-2026-98430? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.