Bug 2516869 (CVE-2026-72500)

Summary: CVE-2026-72500 kernel: RDMA/bnxt_re: Free SRQ toggle page after firmware teardown
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in the Linux kernel's Remote Direct Memory Access (RDMA) Broadcom NetXtreme-E (bnxt_re) driver. This use-after-free vulnerability occurs because a specific memory page is released prematurely during the teardown process. A local attacker could exploit this timing issue, potentially leading to memory corruption and a denial of service.
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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 06:37:43 UTC
In the Linux kernel, the following vulnerability has been resolved:

RDMA/bnxt_re: Free SRQ toggle page after firmware teardown

Free the toggle page only after firmware teardown completes so that
an NQ interrupt arriving during bnxt_qplib_destroy_srq() won't write
the toggle values to an already-freed page. Move free_page() after
bnxt_qplib_destroy_srq().