In the Linux kernel, the following vulnerability has been resolved:
ipv6: sr: Fix MAC comparison to be constant-time
To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.
{
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39702.json"
}"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-39702.json"
[
{
"signature_version": "v1",
"target": {
"file": "net/ipv6/seg6_hmac.c",
"function": "seg6_hmac_validate_skb"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ff55a452d56490047f5233cc48c5d933f8586884",
"deprecated": false,
"digest": {
"function_hash": "338326342529275367446132362442841227146",
"length": 718.0
},
"id": "CVE-2025-39702-25562c66",
"signature_type": "Function"
},
{
"signature_version": "v1",
"target": {
"file": "net/ipv6/seg6_hmac.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ff55a452d56490047f5233cc48c5d933f8586884",
"deprecated": false,
"digest": {
"line_hashes": [
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"153111274070002211164497180553216583655",
"74563752921796147934510890490467753187",
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"189235629331441494637243771416264239974",
"94658936573045613205029189363830625269",
"297516985201748926849310578667448775261"
],
"threshold": 0.9
},
"id": "CVE-2025-39702-822f6e5e",
"signature_type": "Line"
}
]