What’s Vulnerable › Vulnerabilities

CVE-2026-31492: RDMA/irdma: Initialize free_qp completion before using it

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-22 · updated 2026-06-17
• Weakness: CWE-908

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Initialize free_qp completion before using it In irdma_create_qp, if ib_copy_to_udata fails, it will call irdma_destroy_qp to clean up which will attempt to wait on the free_qp completion, which is not initialized yet. Fix this by initializing the completion before the ib_copy_to_udata call.

Affected products

• Linux kernel: from 5.14.1 before 6.1.168; from 6.2 before 6.6.131; from 6.7 before 6.12.80; from 6.13 before 6.18.21; from 6.19 before 6.19.11; 5.14, 7.0-rc1, 7.0-rc2, 7.0-rc3, 7.0-rc4, 7.0-rc5 (+2) — fixed in 6.1.168, 6.12.80, 6.18.21, 6.19.11, 6.6.131

How to fix

Upgrade to a fixed version: Linux kernel 6.1.168, 6.12.80, 6.18.21, 6.19.11. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/11a95521fb93c91e2d4ef9d53dc80ef0a755549b
• https://git.kernel.org/stable/c/3cb88c12461b71c7d9c604aa2e6a9a477ecfa147
• https://git.kernel.org/stable/c/ac1da7bd224d406b6f1b84414f0f652ab43b6bd8
• https://git.kernel.org/stable/c/af310407f79d5816fc0ab3638e1588b6193316dd
• https://git.kernel.org/stable/c/cd1534c8f4984432382c240f6784408497f5bb0a
• https://git.kernel.org/stable/c/f72996834f7bdefc2b95e3eec30447ee195df44e

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