{
  "cveId": "CVE-2022-48819",
  "url": "https://patchblox.com/security/cve/CVE-2022-48819",
  "summary": "CVE-2022-48819 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-48819, released July 16, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  tcp: take care of mixed splice()/sendmsg(MSG_ZER...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  tcp: take care of mixed splice()/sendmsg(MSG_ZEROCOPY) case  syzbot found that mixing sendpage() and sendmsg(MSG_ZEROCOPY) calls over the same TCP socket would again trigger the infamous warning in inet_sock_destruct()  \tWARN_ON(sk_forward_alloc_get(sk));  While Talal took into account a mix of regular copied data and MSG_ZEROCOPY one in the same skb, the sendpage() path has been forgotten.  We want the charging to happen for sendpage(), because pages could be coming from a pipe. What is missing is the downgrading of pure zerocopy status to make sure sk_forward_alloc will stay synced.  Add tcp_downgrade_zcopy_pure() helper so that we can use it from the two callers.",
  "published": "2024-07-16T12:15:05Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00231,
  "epssPercentile": 0.14031,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.16.10-1",
      "fix": "DEBIAN-CVE-2022-48819",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48819",
      "released": "2024-07-16T12:15:05Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.16.10-1",
      "fix": "DEBIAN-CVE-2022-48819",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48819",
      "released": "2024-07-16T12:15:05Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.16.10-1",
      "fix": "DEBIAN-CVE-2022-48819",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-48819",
      "released": "2024-07-16T12:15:05Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}