Bug 2363315 (CVE-2025-37789)

Summary: CVE-2025-37789 kernel: net: openvswitch: fix nested key length validation in the set() action
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: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-05-01 14:03:29 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: openvswitch: fix nested key length validation in the set() action

It's not safe to access nla_len(ovs_key) if the data is smaller than
the netlink header.  Check that the attribute is OK first.
Comment 1 Avinash Hanwate 2025-05-02 04:06:19 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025050119-CVE-2025-37789-3f0b@gregkh/T