What’s Vulnerable › Vulnerabilities

CVE-2026-72494: RDMA/irdma: Replace waitqueue and flag with completion

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-10-30

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Replace waitqueue and flag with completion The driver previously used a waitqueue along with an explicit request_done flag, but without proper barriers around request_done. An earlier patch by Gui-Dong Han <hanguidong02@gmail.com> attempted to fix this by adding the missing memory barriers. Rather than adding the barriers, this patch replaces the waitqueue+flag with a completion, which is designed for this exact purpose.

Affected products

• Linux: 5.14 — fixed in 7.2

How to fix

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

References

• https://git.kernel.org/stable/c/4dcd5afcc3516b07f0a506c338a49bccfd24589b
• https://git.kernel.org/stable/c/706591cccdd3ac2c0ddc8c2ed6c89a6be9865826
• https://git.kernel.org/stable/c/7d89bff21c12e543d12ad70cb0103cf815891b24
• https://git.kernel.org/stable/c/8de303efe2ff4fcbf240dfc6eb3469e1e8f18a3f
• https://git.kernel.org/stable/c/bde37aed0724c0139dea177f3aae8d989b6babb1
• https://git.kernel.org/stable/c/d9c8c45e6d2f438a3c8e643ae78b59454fa0fadd

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