nvd-json-data-feeds/CVE-2022/CVE-2022-492xx/CVE-2022-49204.json

{
  "id": "CVE-2022-49204",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-02-26T07:00:57.480",
  "lastModified": "2025-02-26T07:00:57.480",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, sockmap: Fix more uncharged while msg has more_data\n\nIn tcp_bpf_send_verdict(), if msg has more data after\ntcp_bpf_sendmsg_redir():\n\ntcp_bpf_send_verdict()\n tosend = msg->sg.size  //msg->sg.size = 22220\n case __SK_REDIRECT:\n  sk_msg_return()  //uncharged msg->sg.size(22220) sk->sk_forward_alloc\n  tcp_bpf_sendmsg_redir() //after tcp_bpf_sendmsg_redir, msg->sg.size=11000\n goto more_data;\n tosend = msg->sg.size  //msg->sg.size = 11000\n case __SK_REDIRECT:\n  sk_msg_return()  //uncharged msg->sg.size(11000) to sk->sk_forward_alloc\n\nThe msg->sg.size(11000) has been uncharged twice, to fix we can charge the\nremaining msg->sg.size before goto more data.\n\nThis issue can cause the following info:\nWARNING: CPU: 0 PID: 9860 at net/core/stream.c:208 sk_stream_kill_queues+0xd4/0x1a0\nCall Trace:\n <TASK>\n inet_csk_destroy_sock+0x55/0x110\n __tcp_close+0x279/0x470\n tcp_close+0x1f/0x60\n inet_release+0x3f/0x80\n __sock_release+0x3d/0xb0\n sock_close+0x11/0x20\n __fput+0x92/0x250\n task_work_run+0x6a/0xa0\n do_exit+0x33b/0xb60\n do_group_exit+0x2f/0xa0\n get_signal+0xb6/0x950\n arch_do_signal_or_restart+0xac/0x2a0\n ? vfs_write+0x237/0x290\n exit_to_user_mode_prepare+0xa9/0x200\n syscall_exit_to_user_mode+0x12/0x30\n do_syscall_64+0x46/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n </TASK>\n\nWARNING: CPU: 0 PID: 2136 at net/ipv4/af_inet.c:155 inet_sock_destruct+0x13c/0x260\nCall Trace:\n <TASK>\n __sk_destruct+0x24/0x1f0\n sk_psock_destroy+0x19b/0x1c0\n process_one_work+0x1b3/0x3c0\n worker_thread+0x30/0x350\n ? process_one_work+0x3c0/0x3c0\n kthread+0xe6/0x110\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork+0x22/0x30\n </TASK>"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf, sockmap: Se corrige m\u00e1s mensajes sin cargar mientras msg tiene more_data En tcp_bpf_send_verdict(), si msg tiene m\u00e1s datos despu\u00e9s de tcp_bpf_sendmsg_redir(): tcp_bpf_send_verdict() tosend = msg-&gt;sg.size //msg-&gt;sg.size = 22220 caso __SK_REDIRECT: sk_msg_return() //mensaje sin cargar-&gt;sg.size(22220) sk-&gt;sk_forward_alloc tcp_bpf_sendmsg_redir() //despu\u00e9s de tcp_bpf_sendmsg_redir, msg-&gt;sg.size=11000 goto more_data; tosend = msg-&gt;sg.size //msg-&gt;sg.size = 11000 caso __SK_REDIRECT: sk_msg_return() //msg-&gt;sg.size(11000) no cargado a sk-&gt;sk_forward_alloc El msg-&gt;sg.size(11000) se ha descargado dos veces, para solucionarlo podemos cargar el msg-&gt;sg.size restante antes de ir a m\u00e1s datos. Este problema puede generar la siguiente informaci\u00f3n: ADVERTENCIA: CPU: 0 PID: 9860 en net/core/stream.c:208 sk_stream_kill_queues+0xd4/0x1a0 Seguimiento de llamadas:  inet_csk_destroy_sock+0x55/0x110 __tcp_close+0x279/0x470 tcp_close+0x1f/0x60 inet_release+0x3f/0x80 __sock_release+0x3d/0xb0 sock_close+0x11/0x20 __fput+0x92/0x250 task_work_run+0x6a/0xa0 do_exit+0x33b/0xb60 do_group_exit+0x2f/0xa0 get_signal+0xb6/0x950 arch_do_signal_or_restart+0xac/0x2a0 ? vfs_write+0x237/0x290 exit_to_user_mode_prepare+0xa9/0x200 syscall_exit_to_user_mode+0x12/0x30 do_syscall_64+0x46/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae  ADVERTENCIA: CPU: 0 PID: 2136 en net/ipv4/af_inet.c:155 inet_sock_destruct+0x13c/0x260 Rastreo de llamadas:  __sk_destruct+0x24/0x1f0 sk_psock_destroy+0x19b/0x1c0 process_one_work+0x1b3/0x3c0 worker_thread+0x30/0x350 ? process_one_work+0x3c0/0x3c0 kthread+0xe6/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30 "
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/168ff181f5b6e7fce684c98a30d35da1dbf8f82a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/244ce90c8d0bd10ebf957da02c6f3fcd5d920bdf",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7b812a369e6416ab06d83cdd39d8e3f752781dd0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/84472b436e760ba439e1969a9e3c5ae7c86de39d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/87d532d41ef937e16f61b3d2094f3a2ac49be365",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/abb4caa477a5450817d2aa1198edce66450aecf8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}