{
"id": "GHSA-rcm8-q4cm-988v",
"aliases": [
"CVE-2026-74705"
],
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nudp: fix potential use-after-free in tunnel segmentation\n\n__skb_udp_tunnel_segment() gets the UDP header before ensuring the\ntunnel header is in the skb head. If the pull reallocates skb->head,\nthe saved UDP header pointer is no longer valid.\n\nGet the UDP header after the pull to avoid a potential use-after-free.",
"affected": [],
"modified": "2026-08-25T06:31:29Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
}
],
"published": "2026-08-22T18:30:29Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74705",
"type": "ADVISORY"
},
{
"url": "https://git.kernel.org/stable/c/19d89b13a43640b2da2f277ee462d919d988cb6f",
"type": "WEB"
},
{
"url": "https://git.kernel.org/stable/c/1ae134c012e10384cdac420b5cc6e0615cde0b55",
"type": "WEB"
},
{
"url": "https://git.kernel.org/stable/c/5161e67c561c4f28a5d9335a6e859b02511de92b",
"type": "WEB"
},
{
"url": "https://git.kernel.org/stable/c/588d4a6795d99d080f74ef0b5f391ea8c453ae5d",
"type": "WEB"
},
{
"url": "https://git.kernel.org/stable/c/64d322c288577793eedd352b96ef75234ed380fe",
"type": "WEB"
},
{
"url": "https://git.kernel.org/stable/c/6a733a38b983d8c2e222f13968209010cf44de87",
"type": "WEB"
},
{
"url": "https://git.kernel.org/stable/c/b3df61bb745eb5201eac22679a2839d4ccbf3442",
"type": "WEB"
},
{
"url": "https://git.kernel.org/stable/c/d0f86fb36eb260abd10007b62c9dcc1028e03e61",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [],
"severity": "CRITICAL",
"github_reviewed": false,
"nvd_published_at": "2026-08-22T16:16:45Z",
"github_reviewed_at": null
}
}