Bug 2426190 (CVE-2023-54312)

Summary: CVE-2023-54312 kernel: samples/bpf: Fix buffer overflow in tcp_basertt
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 buffer overflow was found in the BPF sample code tcp_basertt. Incorrect buffer size calculation could cause out-of-bounds writes when copying string data.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2025-12-30 13:15:17 UTC 
In the Linux kernel, the following vulnerability has been resolved:

samples/bpf: Fix buffer overflow in tcp_basertt

Using sizeof(nv) or strlen(nv)+1 is correct.
Comment 1 Alexander B 2025-12-31 02:37:06 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123036-CVE-2023-54312-8b23@gregkh/T