nvd-json-data-feeds/CVE-2024/CVE-2024-369xx/CVE-2024-36930.json

{
  "id": "CVE-2024-36930",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-05-30T16:15:16.217",
  "lastModified": "2024-11-21T09:22:50.657",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: fix null pointer dereference within spi_sync\n\nIf spi_sync() is called with the non-empty queue and the same spi_message\nis then reused, the complete callback for the message remains set while\nthe context is cleared, leading to a null pointer dereference when the\ncallback is invoked from spi_finalize_current_message().\n\nWith function inlining disabled, the call stack might look like this:\n\n  _raw_spin_lock_irqsave from complete_with_flags+0x18/0x58\n  complete_with_flags from spi_complete+0x8/0xc\n  spi_complete from spi_finalize_current_message+0xec/0x184\n  spi_finalize_current_message from spi_transfer_one_message+0x2a8/0x474\n  spi_transfer_one_message from __spi_pump_transfer_message+0x104/0x230\n  __spi_pump_transfer_message from __spi_transfer_message_noqueue+0x30/0xc4\n  __spi_transfer_message_noqueue from __spi_sync+0x204/0x248\n  __spi_sync from spi_sync+0x24/0x3c\n  spi_sync from mcp251xfd_regmap_crc_read+0x124/0x28c [mcp251xfd]\n  mcp251xfd_regmap_crc_read [mcp251xfd] from _regmap_raw_read+0xf8/0x154\n  _regmap_raw_read from _regmap_bus_read+0x44/0x70\n  _regmap_bus_read from _regmap_read+0x60/0xd8\n  _regmap_read from regmap_read+0x3c/0x5c\n  regmap_read from mcp251xfd_alloc_can_err_skb+0x1c/0x54 [mcp251xfd]\n  mcp251xfd_alloc_can_err_skb [mcp251xfd] from mcp251xfd_irq+0x194/0xe70 [mcp251xfd]\n  mcp251xfd_irq [mcp251xfd] from irq_thread_fn+0x1c/0x78\n  irq_thread_fn from irq_thread+0x118/0x1f4\n  irq_thread from kthread+0xd8/0xf4\n  kthread from ret_from_fork+0x14/0x28\n\nFix this by also setting message->complete to NULL when the transfer is\ncomplete."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: corrige la desreferencia del puntero nulo dentro de spi_sync Si se llama a spi_sync() con la cola no vac\u00eda y luego se reutiliza el mismo spi_message, la devoluci\u00f3n de llamada completa para el mensaje permanece configurada mientras el el contexto se borra, lo que lleva a una desreferencia del puntero nulo cuando se invoca la devoluci\u00f3n de llamada desde spi_finalize_current_message(). Con la funci\u00f3n incorporada deshabilitada, la pila de llamadas podr\u00eda verse as\u00ed: _raw_spin_lock_irqsave from complete_with_flags+0x18/0x58 complete_with_flags from spi_complete+0x8/0xc spi_complete from spi_finalize_current_message+0xec/0x184 spi_finalize_current_message from spi_transfer_one_message+0x2 a8/0x474 spi_transfer_one_message de __spi_pump_transfer_message+0x104/0x230 __spi_pump_transfer_message de __spi_transfer_message_noqueue+0x30/0xc4 __spi_transfer_message_noqueue de __spi_sync+0x204/0x248 __spi_sync de spi_sync+0x24/0x3c spi_sync de mcp251xfd_regmap_crc_read+0x124/0x28c fd] mcp251xfd_regmap_crc_read [mcp251xfd] de _regmap_raw_read+0xf8/0x154 _regmap_raw_read de _regmap_bus_read+0x44/0x70 _regmap_bus_read de _regmap_read+ 0x60/0xd8 _regmap_read de regmap_read+0x3c/0x5c regmap_read de mcp251xfd_alloc_can_err_skb+0x1c/0x54 [mcp251xfd] mcp251xfd_alloc_can_err_skb [mcp251xfd] de mcp251xfd_irq+0x19 4/0xe70 [mcp251xfd] mcp251xfd_irq [mcp251xfd] de irq_thread_fn+0x1c/0x78 irq_thread_fn de irq_thread+0x118/0x1f4 irq_thread de kthread+0xd8/0xf4 kthread de ret_from_fork+0x14/0x28 Solucione este problema configurando tambi\u00e9n mensaje->completo en NULL cuando se complete la transferencia."
    }
  ],
  "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"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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