Bug 2516320 (CVE-2026-72038)

Summary: CVE-2026-72038 kernel: net: liquidio: fix BAR resource leak on PF number failure
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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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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A flaw was found in the `liquidio` network driver within the Linux kernel. This vulnerability occurs when the `cn23xx_get_pf_num()` function fails, leading to Base Address Register (BAR) resources not being properly unmapped. This resource leak could potentially be exploited by a local attacker to cause a Denial of Service (DoS) or system instability.
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Description OSIDB Bzimport 2026-08-15 06:06:20 UTC
In the Linux kernel, the following vulnerability has been resolved:

net: liquidio: fix BAR resource leak on PF number failure

If cn23xx_get_pf_num() fails, the function returns without
unmapping either BAR. Unmap both BARs before returning from
the error path.

Found by manual code review.