Bug 2516700 (CVE-2026-72410)

Summary: CVE-2026-72410 kernel: octeontx2-af: Validate NIX maximum LFs correctly
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
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 Linux kernel's `octeontx2-af` driver. This vulnerability stems from an incorrect validation check when setting the maximum number of NIX Logical Functions (LFs) using the `devlink` command. An attacker could potentially exploit this to configure the system in an unintended state, leading to instability or resource management problems within the network interface.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-08-15 06:26:32 UTC
In the Linux kernel, the following vulnerability has been resolved:

octeontx2-af: Validate NIX maximum LFs correctly

NIX maximum number of LFs can be set via devlink command
but that can be done before assigning any LFs to a PF/VF.
The condition used to check whether any LFs are assigned is
incorrect. This patch fixes that condition.