HighFix available
net: openvswitch: fix nested key length validation in the set() action
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix nested key length validation in the set() action It's not safe to access nla_len(ovs_key) if the data is smaller than the netlink header. Check that the attribute is OK first.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.237, 5.15.181, 5.4.293, 6.1.135, 6.12.25, 6.14.4, 6.6.88
- CVEs
- CVE-2025-37789
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 16:15 UTC · Revision 1
Source evidence
net: openvswitch: fix nested key length validation in the set() action
core-osv · Original sourcePublished 1 May 2025, 13:07 UTC
In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix nested key length validation in the set() action It's not safe to access nla_len(ovs_key) if the data is smaller than the netlink header. Check that the attribute is OK first.
osv:CVE-2025-37789
Kernel
Fixed versions: 5.4.293, 5.10.237, 5.15.181, 6.1.135, 6.6.88, 6.12.25, 6.14.4
Complete source record
{
"id": "8f897601638097d93803fe5bb8ef5bb521009f3939409a77732f52b8a777c42c",
"url": "https://osv.dev/vulnerability/CVE-2025-37789",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "net: openvswitch: fix nested key length validation in the set() action",
"summary": "In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix nested key length validation in the set() action It's not safe to access nla_len(ovs_key) if the data is smaller than the netlink header. Check that the attribute is OK first.",
"evidence": "osv:CVE-2025-37789",
"products": [
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"name": {
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"prerequisites": [],
"fixed_versions": [
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"value": "5.4.293",
"evidence": "/affected/1/ranges"
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{
"value": "5.10.237",
"evidence": "/affected/1/ranges"
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{
"value": "5.15.181",
"evidence": "/affected/1/ranges"
},
{
"value": "6.1.135",
"evidence": "/affected/1/ranges"
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{
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{
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"evidence": "/affected/1/ranges"
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{
"value": "6.14.4",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "CVE-2025-37789",
"aliases": [
"CVE-2025-37789"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
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{
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{
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{
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{
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{
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}
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}
},
{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
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{
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"events": [
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{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.7.0"
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{
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},
{
"type": "ECOSYSTEM",
"events": [
{
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{
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],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37789.json"
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],
"modified": "2026-10-28T02:30:37.591781100Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/03d7262dd53e8c404da35cc81aaa887fd901f76b",
"https://git.kernel.org/stable/c/1489c195c8eecd262aa6712761ba5288203e28ec",
"https://git.kernel.org/stable/c/54c6957d1123a2032099b9eab51c314800f677ce",
"https://git.kernel.org/stable/c/65d91192aa66f05710cfddf6a14b5a25ee554dba",
"https://git.kernel.org/stable/c/7fcaec0b2ab8fa5fbf0b45e5512364a168f445bd",
"https://git.kernel.org/stable/c/824a7c2df5127b2402b68a21a265d413e78dcad7",
"https://git.kernel.org/stable/c/a27526e6b48eee9e2d82efff502c4f272f1a91d4",
"https://git.kernel.org/stable/c/be80768d4f3b6fd13f421451cc3fee8778aba8bc",
"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html",
"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37789.json",
"https://nvd.nist.gov/vuln/detail/CVE-2025-37789",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37789.json"
}
},
"related_cves": [
{
"value": "CVE-2025-37789",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 504572,
"published_at": "2025-05-01T13:07:22.809+00:00"
}