Bug 2367505 (CVE-2025-37939)

Summary: CVE-2025-37939 kernel: libbpf: Fix accessing BTF.ext core_relo header
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: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-05-20 16:01:22 UTC 
In the Linux kernel, the following vulnerability has been resolved:

libbpf: Fix accessing BTF.ext core_relo header

Update btf_ext_parse_info() to ensure the core_relo header is present
before reading its fields. This avoids a potential buffer read overflow
reported by the OSS Fuzz project.
Comment 1 Jon Moroney 2025-05-20 20:56:08 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025052047-CVE-2025-37939-8398@gregkh/T