CVE-2025-38432

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Source
https://cve.org/CVERecord?id=CVE-2025-38432
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38432.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-38432
Downstream
Published
2025-07-25T14:24:13.766Z
Modified
2026-03-09T23:53:17.618074Z
Summary
net: netpoll: Initialize UDP checksum field before checksumming
Details

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

net: netpoll: Initialize UDP checksum field before checksumming

commit f1fce08e63fe ("netpoll: Eliminate redundant assignment") removed the initialization of the UDP checksum, which was wrong and broke netpoll IPv6 transmission due to bad checksumming.

udph->check needs to be set before calling csumipv6magic().

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38432.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
f1fce08e63fe1a2a8b8106b93b7244a39830edae
Fixed
353016ec159f939a380ff6746476a779367ba9a3
Fixed
f5990207026987a353d5a95204c4d9cb725637fd

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38432.json"