MediumFix available
ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg When len >= INT_MAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the transhdrlen from the max.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 4.14.285, 4.19.249, 4.9.320, 5.10.124, 5.15.49, 5.18.6, 5.4.200
- CVEs
- CVE-2022-49727
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 10:37 UTC · Revision 1
Source evidence
ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg
core-osv · Original sourcePublished 26 Feb 2025, 02:24 UTC
In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg When len >= INT_MAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the transhdrlen from the max.
osv:CVE-2022-49727
Kernel
Fixed versions: 4.9.320, 4.14.285, 4.19.249, 5.4.200, 5.10.124, 5.15.49, 5.18.6
Complete source record
{
"id": "16b62859f2564d8e541e5d9b7e3d0f56a26dd5b72857b4955708b6200918d719",
"url": "https://osv.dev/vulnerability/CVE-2022-49727",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg",
"summary": "In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg When len >= INT_MAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the transhdrlen from the max.",
"evidence": "osv:CVE-2022-49727",
"products": [
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"prerequisites": [],
"fixed_versions": [
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"value": "4.9.320",
"evidence": "/affected/1/ranges"
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{
"value": "4.14.285",
"evidence": "/affected/1/ranges"
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{
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{
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"affected_versions": []
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"severity": "medium",
"structured": {
"id": "CVE-2022-49727",
"aliases": [
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"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
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"affected": [
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],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49727.json"
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],
"modified": "2026-10-28T02:30:28.029603370Z",
"provider": "osv",
"references": [
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"https://git.kernel.org/stable/c/0e818d433fc2718fe4da044ffca7431812a7e04e",
"https://git.kernel.org/stable/c/27a37755ceb401111ded76810359d3adc4b268a1",
"https://git.kernel.org/stable/c/2cf73c7cb6125083408d77f43d0e84d86aed0000",
"https://git.kernel.org/stable/c/2f42389d270f2304c8855b0b63498a5a4d0c053d",
"https://git.kernel.org/stable/c/6c4e3486d21173d60925ef52e512cae727b43d30",
"https://git.kernel.org/stable/c/b8879ca1fd7348b4d5db7db86dcb97f60c73d751",
"https://git.kernel.org/stable/c/f638a84afef3dfe10554c51820c16e39a278c915",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49727.json",
"https://nvd.nist.gov/vuln/detail/CVE-2022-49727",
"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/2022/49xxx/CVE-2022-49727.json"
}
},
"related_cves": [
{
"value": "CVE-2022-49727",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 494587,
"published_at": "2025-02-26T02:24:38.672+00:00"
}