nvd-json-data-feeds/CVE-2022/CVE-2022-494xx/CVE-2022-49418.json

{
  "id": "CVE-2022-49418",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-02-26T07:01:18.260",
  "lastModified": "2025-02-26T07:01:18.260",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSv4: Fix free of uninitialized nfs4_label on referral lookup.\n\nSend along the already-allocated fattr along with nfs4_fs_locations, and\ndrop the memcpy of fattr.  We end up growing two more allocations, but this\nfixes up a crash as:\n\nPID: 790    TASK: ffff88811b43c000  CPU: 0   COMMAND: \"ls\"\n #0 [ffffc90000857920] panic at ffffffff81b9bfde\n #1 [ffffc900008579c0] do_trap at ffffffff81023a9b\n #2 [ffffc90000857a10] do_error_trap at ffffffff81023b78\n #3 [ffffc90000857a58] exc_stack_segment at ffffffff81be1f45\n #4 [ffffc90000857a80] asm_exc_stack_segment at ffffffff81c009de\n #5 [ffffc90000857b08] nfs_lookup at ffffffffa0302322 [nfs]\n #6 [ffffc90000857b70] __lookup_slow at ffffffff813a4a5f\n #7 [ffffc90000857c60] walk_component at ffffffff813a86c4\n #8 [ffffc90000857cb8] path_lookupat at ffffffff813a9553\n #9 [ffffc90000857cf0] filename_lookup at ffffffff813ab86b"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: NFSv4: Se corrige el error nfs4_label no inicializado en la b\u00fasqueda de referencias. Se env\u00eda el fattr ya asignado junto con nfs4_fs_locations y se elimina el memcpy de fattr. Terminamos aumentando dos asignaciones m\u00e1s, pero esto soluciona un fallo como: PID: 790 TAREA: ffff88811b43c000 CPU: 0 COMANDO: \"ls\" #0 [ffffc90000857920] panic en ffffffff81b9bfde #1 [ffffc900008579c0] do_trap en ffffffff81023a9b #2 [ffffc90000857a10] do_error_trap en ffffffff81023b78 #3 [ffffc90000857a58] exc_stack_segment en ffffffff81be1f45 #4 [ffffc90000857a80] asm_exc_stack_segment en ffffffff81c009de #5 [ffffc90000857b08] nfs_lookup en ffffffffa0302322 [nfs] #6 [ffffc90000857b70] __lookup_slow en ffffffff813a4a5f #7 [ffffc90000857c60] walk_component en ffffffff813a86c4 #8 [ffffc90000857cb8] path_lookupat en ffffffff813a9553 #9 [ffffc90000857cf0] filename_lookup en ffffffff813ab86b"
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/6015292653d95ba9f72906e2b65e536aa5807d64",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c3ed222745d9ad7b69299b349a64ba533c64a34f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/eb1fe9600b86c24a789046bfc5c6851dda119280",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}