nvd-json-data-feeds/CVE-2022/CVE-2022-494xx/CVE-2022-49420.json

{
  "id": "CVE-2022-49420",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-02-26T07:01:18.440",
  "lastModified": "2025-02-26T07:01:18.440",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: annotate races around sk->sk_bound_dev_if\n\nUDP sendmsg() is lockless, and reads sk->sk_bound_dev_if while\nthis field can be changed by another thread.\n\nAdds minimal annotations to avoid KCSAN splats for UDP.\nFollowing patches will add more annotations to potential lockless readers.\n\nBUG: KCSAN: data-race in __ip6_datagram_connect / udpv6_sendmsg\n\nwrite to 0xffff888136d47a94 of 4 bytes by task 7681 on cpu 0:\n __ip6_datagram_connect+0x6e2/0x930 net/ipv6/datagram.c:221\n ip6_datagram_connect+0x2a/0x40 net/ipv6/datagram.c:272\n inet_dgram_connect+0x107/0x190 net/ipv4/af_inet.c:576\n __sys_connect_file net/socket.c:1900 [inline]\n __sys_connect+0x197/0x1b0 net/socket.c:1917\n __do_sys_connect net/socket.c:1927 [inline]\n __se_sys_connect net/socket.c:1924 [inline]\n __x64_sys_connect+0x3d/0x50 net/socket.c:1924\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x2b/0x50 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nread to 0xffff888136d47a94 of 4 bytes by task 7670 on cpu 1:\n udpv6_sendmsg+0xc60/0x16e0 net/ipv6/udp.c:1436\n inet6_sendmsg+0x5f/0x80 net/ipv6/af_inet6.c:652\n sock_sendmsg_nosec net/socket.c:705 [inline]\n sock_sendmsg net/socket.c:725 [inline]\n ____sys_sendmsg+0x39a/0x510 net/socket.c:2413\n ___sys_sendmsg net/socket.c:2467 [inline]\n __sys_sendmmsg+0x267/0x4c0 net/socket.c:2553\n __do_sys_sendmmsg net/socket.c:2582 [inline]\n __se_sys_sendmmsg net/socket.c:2579 [inline]\n __x64_sys_sendmmsg+0x53/0x60 net/socket.c:2579\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x2b/0x50 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nvalue changed: 0x00000000 -> 0xffffff9b\n\nReported by Kernel Concurrency Sanitizer on:\nCPU: 1 PID: 7670 Comm: syz-executor.3 Tainted: G        W         5.18.0-rc1-syzkaller-dirty #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\n\nI chose to not add Fixes: tag because race has minor consequences\nand stable teams busy enough."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: annotate races around sk->sk_bound_dev_if UDP sendmsg() is lockless, and reads sk->sk_bound_dev_if while this field can be changed by another thread. A\u00f1ade anotaciones m\u00ednimas para evitar splats de KCSAN para UDP. Los siguientes parches a\u00f1adir\u00e1n m\u00e1s anotaciones a posibles lectores sin bloqueo. ERROR: KCSAN: data-race in __ip6_datagram_connect / udpv6_sendmsg write to 0xffff888136d47a94 of 4 bytes by task 7681 on cpu 0: __ip6_datagram_connect+0x6e2/0x930 net/ipv6/datagram.c:221 ip6_datagram_connect+0x2a/0x40 net/ipv6/datagram.c:272 inet_dgram_connect+0x107/0x190 net/ipv4/af_inet.c:576 __sys_connect_file net/socket.c:1900 [inline] __sys_connect+0x197/0x1b0 net/socket.c:1917 __do_sys_connect net/socket.c:1927 [inline] __se_sys_connect net/socket.c:1924 [inline] __x64_sys_connect+0x3d/0x50 net/socket.c:1924 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x50 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888136d47a94 of 4 bytes by task 7670 on cpu 1: udpv6_sendmsg+0xc60/0x16e0 net/ipv6/udp.c:1436 inet6_sendmsg+0x5f/0x80 net/ipv6/af_inet6.c:652 sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg net/socket.c:725 [inline] ____sys_sendmsg+0x39a/0x510 net/socket.c:2413 ___sys_sendmsg net/socket.c:2467 [inline] __sys_sendmmsg+0x267/0x4c0 net/socket.c:2553 __do_sys_sendmmsg net/socket.c:2582 [inline] __se_sys_sendmmsg net/socket.c:2579 [inline] __x64_sys_sendmmsg+0x53/0x60 net/socket.c:2579 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x50 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00000000 -> 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 Eleg\u00ed no agregar la etiqueta Correcciones: porque la ejecuci\u00f3n tiene consecuencias menores y los equipos estables est\u00e1n suficientemente ocupados."
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/20b2f61797873a2b18b5ff1a304ad2674fa1e0a5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4c971d2f3548e4f11b1460ac048f5307e4b39fdb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}