{
  "id": "CVE-2024-50298",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-11-19T02:16:31.970",
  "lastModified": "2024-11-27T15:25:38.023",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: enetc: allocate vf_state during PF probes\n\nIn the previous implementation, vf_state is allocated memory only when VF\nis enabled. However, net_device_ops::ndo_set_vf_mac() may be called before\nVF is enabled to configure the MAC address of VF. If this is the case,\nenetc_pf_set_vf_mac() will access vf_state, resulting in access to a null\npointer. The simplified error log is as follows.\n\nroot@ls1028ardb:~# ip link set eno0 vf 1 mac 00:0c:e7:66:77:89\n[  173.543315] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004\n[  173.637254] pc : enetc_pf_set_vf_mac+0x3c/0x80 Message from sy\n[  173.641973] lr : do_setlink+0x4a8/0xec8\n[  173.732292] Call trace:\n[  173.734740]  enetc_pf_set_vf_mac+0x3c/0x80\n[  173.738847]  __rtnl_newlink+0x530/0x89c\n[  173.742692]  rtnl_newlink+0x50/0x7c\n[  173.746189]  rtnetlink_rcv_msg+0x128/0x390\n[  173.750298]  netlink_rcv_skb+0x60/0x130\n[  173.754145]  rtnetlink_rcv+0x18/0x24\n[  173.757731]  netlink_unicast+0x318/0x380\n[  173.761665]  netlink_sendmsg+0x17c/0x3c8"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: enetc: asignar vf_state durante los sondeos de PF En la implementaci\u00f3n anterior, a vf_state se le asigna memoria solo cuando VF est\u00e1 habilitado. Sin embargo, se puede llamar a net_device_ops::ndo_set_vf_mac() antes de que VF est\u00e9 habilitado para configurar la direcci\u00f3n MAC de VF. Si este es el caso, enetc_pf_set_vf_mac() acceder\u00e1 a vf_state, lo que dar\u00e1 como resultado el acceso a un puntero nulo. El registro de errores simplificado es el siguiente. root@ls1028ardb:~# ip link set eno0 vf 1 mac 00:0c:e7:66:77:89 [ 173.543315] No se puede manejar la desreferencia del puntero NULL del n\u00facleo en la direcci\u00f3n virtual 0000000000000004 [ 173.637254] pc : enetc_pf_set_vf_mac+0x3c/0x80 Mensaje de sy [ 173.641973] lr : do_setlink+0x4a8/0xec8 [ 173.732292] Rastreo de llamada: [ 173.734740] enetc_pf_set_vf_mac+0x3c/0x80 [ 173.738847] __rtnl_newlink+0x530/0x89c [ 173.742692] rtnl_newlink+0x50/0x7c [ 173.746189] rtnetlink_rcv_msg+0x128/0x390 [ 173.750298] netlink_rcv_skb+0x60/0x130 [ 173.754145] rtnetlink_rcv+0x18/0x24 [ 173.757731] netlink_unicast+0x318/0x380 [ 173.761665] netlink_sendmsg+0x17c/0x3c8"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
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