CVE-2025-40050

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Source
https://cve.org/CVERecord?id=CVE-2025-40050
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-40050.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-40050
Downstream
Related
Published
2025-10-28T11:48:26.654Z
Modified
2026-05-15T04:13:45.132232686Z
Summary
bpf: Skip scalar adjustment for BPF_NEG if dst is a pointer
Details

In the Linux kernel, the following vulnerability has been resolved:

bpf: Skip scalar adjustment for BPF_NEG if dst is a pointer

In checkaluop(), the verifier currently calls checkregarg() and adjustscalarminmaxvals() unconditionally for BPF_NEG operations. However, if the destination register holds a pointer, these scalar adjustments are unnecessary and potentially incorrect.

This patch adds a check to skip the adjustment logic when the destination register contains a pointer.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40050.json"
}
References

Affected packages

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.17.0
Fixed
6.17.3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-40050.json"