Bug 2451253 (CVE-2026-23289)

Summary: CVE-2026-23289 kernel: IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Priority: low    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel's IB/mthca component. A local user could exploit this vulnerability by triggering a system call failure path related to the `mthca_create_srq()` function. This oversight leads to a missed unmapping of user database resources, resulting in a resource leak.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-03-25 11:07:16 UTC
In the Linux kernel, the following vulnerability has been resolved:

IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq()

Fix a user triggerable leak on the system call failure path.