{
  "cveId": "CVE-2026-46322",
  "url": "https://patchblox.com/security/cve/CVE-2026-46322",
  "summary": "CVE-2026-46322 is fixed in 71 products on 1 platform, first by ALAS2023-2026-1881, released June 22, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "tun: free page on build_skb failure in tun_xdp_one()",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  tun: free page on build_skb failure in tun_xdp_one()  When build_skb() fails in tun_xdp_one(), the function sets ret to -ENOMEM and jumps to the out label, which returns without freeing the page that vhost_net_build_xdp() allocated for the frame. As with the short-frame rejection path, tun_sendmsg() discards the per-buffer error and still returns total_len, so vhost_tx_batch() takes the success path and never frees the page. Each build_skb() failure in a batch leaks one page-frag chunk.  Free the page before taking the error path, matching the put_page() the other error exits of tun_xdp_one() already perform.",
  "published": "2026-06-09T13:16:37Z",
  "severity": "Moderate",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
  "epss": 0.00134,
  "epssPercentile": 0.029,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-46322",
  "fixes": [
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      "fix": "ALAS2023-2026-1924",
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      "released": "2026-07-06T09:00:00Z"
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      "fix": "ALAS2023-2026-1924",
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      "fix": "ALAS2023-2026-1968",
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