What’s Vulnerable › Vulnerabilities

CVE-2026-68417: RDMA/siw: publish QP after initialization

• Severity: high (CVSS 7.8 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: 2026-08-10 · updated 2026-10-19
• Weakness: CWE-362

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: publish QP after initialization siw_create_qp() currently calls siw_qp_add() before the queues, CQ pointers, state, completion, and device list entry are ready. A QPN lookup can therefore reach a QP that is still being constructed. Move siw_qp_add() to the end of siw_create_qp(), after QP initialization and before adding the QP to the siw device list.

Affected products

• Linux kernel: 5.3 — fixed in 7.2

How to fix

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

References

• https://git.kernel.org/stable/c/36e91a58397ca8c978e38a0bf389f0c6113fa8ca
• https://git.kernel.org/stable/c/3c9d128219964dcea897bf6139b88242e987be8f
• https://git.kernel.org/stable/c/3ff82e3841ecab1ff38d5817c969a019d266c83c
• https://git.kernel.org/stable/c/52f9fcb191143448df55fd215ff09c5207fed43e
• https://git.kernel.org/stable/c/74912ad168f87d6b2b670a87987bb302d6e64aa1
• https://git.kernel.org/stable/c/bb27fcc67c429d97f785c92c35a6c5adebb05d7f
• https://git.kernel.org/stable/c/fcc9d50022bcdb1f9f7ed04955c72b4a7355af3d

Get alerted when CVE-2026-68417 or the next vulnerability affects your stack