CVE-2026-31492 Details
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.
A vulnerability exists in the Linux kernel's RDMA/Irdma component, specifically within the 'irdma_create_qp' function. When the 'ib_copy_to_udata' function fails, the 'irdma_destroy_qp' function is called to clean up. However, this cleanup process attempts to wait on the 'free_qp' completion, which has not been initialized. This issue affects several versions of the Linux kernel.
The vulnerability has been fixed by initializing the 'free_qp' completion before the 'ib_copy_to_udata' call. Users should upgrade to the latest version of the Linux kernel where this fix has been applied.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/11a95521fb93c91e2d4ef9d53dc80ef0a755549b | kernel.org | Patch |
| https://git.kernel.org/stable/c/3cb88c12461b71c7d9c604aa2e6a9a477ecfa147 | kernel.org | Patch |
| https://git.kernel.org/stable/c/ac1da7bd224d406b6f1b84414f0f652ab43b6bd8 | kernel.org | Patch |
| https://git.kernel.org/stable/c/af310407f79d5816fc0ab3638e1588b6193316dd | kernel.org | Patch |
| https://git.kernel.org/stable/c/cd1534c8f4984432382c240f6784408497f5bb0a | kernel.org | Patch |
| https://git.kernel.org/stable/c/f72996834f7bdefc2b95e3eec30447ee195df44e | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-908 | Use of Uninitialized Resource | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.14.1, < 6.1.168 >= 6.2, < 6.6.131 >= 6.7, < 6.12.80 >= 6.13, < 6.18.21 >= 6.19, < 6.19.11 5.14 - 7.0 rc1 7.0 rc2 7.0 rc3 7.0 rc4 7.0 rc5 7.0 rc6 7.0 rc7 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Apr 28, 2026 | Initial Analysis | [email protected] |
| Apr 22, 2026 | New CVE Received | kernel.org |