Bug 2516757 (CVE-2026-72496)

Summary: CVE-2026-72496 kernel: RDMA/bnxt_re: Proper rollback if the ioremap fails
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: low    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in the Linux kernel's RDMA/bnxt_re component. When the `bnxt_qplib_alloc_dpi` function attempts to map I/O memory (`ioremap`), it may not properly handle failures. This oversight could lead to system instability or a denial of service (DoS) condition, as the system might proceed with an invalid memory state.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-08-15 06:31:58 UTC
In the Linux kernel, the following vulnerability has been resolved:

RDMA/bnxt_re: Proper rollback if the ioremap fails

bnxt_qplib_alloc_dpi returns success even if ioremap fails.
Add the proper rollback when the ioremap fails and return
-ENOMEM status.