{
  "cveId": "CVE-2022-49420",
  "url": "https://patchblox.com/security/cve/CVE-2022-49420",
  "summary": "CVE-2022-49420 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49420, released February 26, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  net: annotate races around sk-\u003Esk_bound_dev_if...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  net: annotate races around sk-\u003Esk_bound_dev_if  UDP sendmsg() is lockless, and reads sk-\u003Esk_bound_dev_if while this field can be changed by another thread.  Adds minimal annotations to avoid KCSAN splats for UDP. Following patches will add more annotations to potential lockless readers.  BUG: KCSAN: data-race in __ip6_datagram_connect / udpv6_sendmsg  write to 0xffff888136d47a94 of 4 bytes by task 7681 on cpu 0:  __ip6_datagram_connect\u002B0x6e2/0x930 net/ipv6/datagram.c:221  ip6_datagram_connect\u002B0x2a/0x40 net/ipv6/datagram.c:272  inet_dgram_connect\u002B0x107/0x190 net/ipv4/af_inet.c:576  __sys_connect_file net/socket.c:1900 [inline]  __sys_connect\u002B0x197/0x1b0 net/socket.c:1917  __do_sys_connect net/socket.c:1927 [inline]  __se_sys_connect net/socket.c:1924 [inline]  __x64_sys_connect\u002B0x3d/0x50 net/socket.c:1924  do_syscall_x64 arch/x86/entry/common.c:50 [inline]  do_syscall_64\u002B0x2b/0x50 arch/x86/entry/common.c:80  entry_SYSCALL_64_after_hwframe\u002B0x44/0xae  read to 0xffff888136d47a94 of 4 bytes by task 7670 on cpu 1:  udpv6_sendmsg\u002B0xc60/0x16e0 net/ipv6/udp.c:1436  inet6_sendmsg\u002B0x5f/0x80 net/ipv6/af_inet6.c:652  sock_sendmsg_nosec net/socket.c:705 [inline]  sock_sendmsg net/socket.c:725 [inline]  ____sys_sendmsg\u002B0x39a/0x510 net/socket.c:2413  ___sys_sendmsg net/socket.c:2467 [inline]  __sys_sendmmsg\u002B0x267/0x4c0 net/socket.c:2553  __do_sys_sendmmsg net/socket.c:2582 [inline]  __se_sys_sendmmsg net/socket.c:2579 [inline]  __x64_sys_sendmmsg\u002B0x53/0x60 net/socket.c:2579  do_syscall_x64 arch/x86/entry/common.c:50 [inline]  do_syscall_64\u002B0x2b/0x50 arch/x86/entry/common.c:80  entry_SYSCALL_64_after_hwframe\u002B0x44/0xae  value changed: 0x00000000 -\u003E 0xffffff9b  Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 7670 Comm: syz-executor.3 Tainted: G        W         5.18.0-rc1-syzkaller-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011  I chose to not add Fixes: tag because race has minor consequences and stable teams busy enough.",
  "published": "2025-02-26T07:01:18Z",
  "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": 0.00228,
  "epssPercentile": 0.13698,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49420",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49420",
      "released": "2025-02-26T07:01:18Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49420",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49420",
      "released": "2025-02-26T07:01:18Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.18.5-1",
      "fix": "DEBIAN-CVE-2022-49420",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49420",
      "released": "2025-02-26T07:01:18Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}