CVE-2025-38265

Estado: AnalizadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

serial: jsm: fix NPE during jsm_uart_port_init

No device was set which caused serial_base_ctrl_add to crash.

Tested with Digi Neo PCIe 8 port card.

Detalles técnicos trazas, registros y código del informe original

 BUG: kernel NULL pointer dereference, address: 0000000000000050
 Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
 CPU: 16 UID: 0 PID: 368 Comm: (udev-worker) Not tainted 6.12.25-amd64 #1  Debian 6.12.25-1
 RIP: 0010:serial_base_ctrl_add+0x96/0x120
 Call Trace:
  <TASK>
  serial_core_register_port+0x1a0/0x580
  ? __setup_irq+0x39c/0x660
  ? __kmalloc_cache_noprof+0x111/0x310
  jsm_uart_port_init+0xe8/0x180 [jsm]
  jsm_probe_one+0x1f4/0x410 [jsm]
  local_pci_probe+0x42/0x90
  pci_device_probe+0x22f/0x270
  really_probe+0xdb/0x340
  ? pm_runtime_barrier+0x54/0x90
  ? __pfx___driver_attach+0x10/0x10
  __driver_probe_device+0x78/0x110
  driver_probe_device+0x1f/0xa0
  __driver_attach+0xba/0x1c0
  bus_for_each_dev+0x8c/0xe0
  bus_add_driver+0x112/0x1f0
  driver_register+0x72/0xd0
  jsm_init_module+0x36/0xff0 [jsm]
  ? __pfx_jsm_init_module+0x10/0x10 [jsm]
  do_one_initcall+0x58/0x310
  do_init_module+0x60/0x230

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Puntuación base: 5.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.18%
Percentil entre todas las CVEs puntuadas: 6
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-476

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2025-38265",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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          "defaultStatus": "unaffected"
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              "versionType": "semver",
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          "programFiles": [
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  "published": "2025-07-10T08:15:24.600",
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nserial: jsm: fix NPE during jsm_uart_port_init\n\nNo device was set which caused serial_base_ctrl_add to crash.\n\n BUG: kernel NULL pointer dereference, address: 0000000000000050\n Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 16 UID: 0 PID: 368 Comm: (udev-worker) Not tainted 6.12.25-amd64 #1  Debian 6.12.25-1\n RIP: 0010:serial_base_ctrl_add+0x96/0x120\n Call Trace:\n  <TASK>\n  serial_core_register_port+0x1a0/0x580\n  ? __setup_irq+0x39c/0x660\n  ? __kmalloc_cache_noprof+0x111/0x310\n  jsm_uart_port_init+0xe8/0x180 [jsm]\n  jsm_probe_one+0x1f4/0x410 [jsm]\n  local_pci_probe+0x42/0x90\n  pci_device_probe+0x22f/0x270\n  really_probe+0xdb/0x340\n  ? pm_runtime_barrier+0x54/0x90\n  ? __pfx___driver_attach+0x10/0x10\n  __driver_probe_device+0x78/0x110\n  driver_probe_device+0x1f/0xa0\n  __driver_attach+0xba/0x1c0\n  bus_for_each_dev+0x8c/0xe0\n  bus_add_driver+0x112/0x1f0\n  driver_register+0x72/0xd0\n  jsm_init_module+0x36/0xff0 [jsm]\n  ? __pfx_jsm_init_module+0x10/0x10 [jsm]\n  do_one_initcall+0x58/0x310\n  do_init_module+0x60/0x230\n\nTested with Digi Neo PCIe 8 port card."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: serial: jsm: fix NPE durante jsm_uart_port_init No se configuró ningún dispositivo que causó que serial_base_ctrl_add se bloqueara. ERROR: desreferencia de puntero NULL del kernel, dirección: 000000000000050 Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 16 UID: 0 PID: 368 Comm: (udev-worker) No contaminado 6.12.25-amd64 #1 Debian 6.12.25-1 RIP: 0010:serial_base_ctrl_add+0x96/0x120 Rastreo de llamadas:  serial_core_register_port+0x1a0/0x580 ? __setup_irq+0x39c/0x660 ? __kmalloc_cache_noprof+0x111/0x310 jsm_uart_port_init+0xe8/0x180 [jsm] jsm_probe_one+0x1f4/0x410 [jsm] local_pci_probe+0x42/0x90 pci_device_probe+0x22f/0x270 really_probe+0xdb/0x340 ? pm_runtime_barrier+0x54/0x90 ? __pfx___driver_attach+0x10/0x10 __driver_probe_device+0x78/0x110 driver_probe_device+0x1f/0xa0 __driver_attach+0xba/0x1c0 bus_for_each_dev+0x8c/0xe0 bus_add_driver+0x112/0x1f0 driver_register+0x72/0xd0 jsm_init_module+0x36/0xff0 [jsm] ? __pfx_jsm_init_module+0x10/0x10 [jsm] do_one_initcall+0x58/0x310 do_init_module+0x60/0x230 Probado con la tarjeta Digi Neo PCIe de 8 puertos."
    }
  ],
  "lastModified": "2026-06-17T09:16:30.740",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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}