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CVE-2022-49537

Estado: AnalizadaMedia (5.5)—

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

scsi: lpfc: Fix call trace observed during I/O with CMF enabled

The following was seen with CMF enabled:

this_cpu_ptr() calls smp_processor_id() in a preemptible context.

Fix by using per_cpu_ptr() with raw_smp_processor_id() instead.

Detalles técnicos trazas, registros y código del informe original
BUG: using smp_processor_id() in preemptible
code: systemd-udevd/31711
kernel: caller is lpfc_update_cmf_cmd+0x214/0x420  [lpfc]
kernel: CPU: 12 PID: 31711 Comm: systemd-udevd
kernel: Call Trace:
kernel: <TASK>
kernel: dump_stack_lvl+0x44/0x57
kernel: check_preemption_disabled+0xbf/0xe0
kernel: lpfc_update_cmf_cmd+0x214/0x420 [lpfc]
kernel: lpfc_nvme_fcp_io_submit+0x23b4/0x4df0 [lpfc]

CVSS

Probabilidad de explotación (EPSS)

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

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-49537",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
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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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              "status": "unaffected",
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              "versionType": "original_commit_for_fix",
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            }
          ],
          "programFiles": [
            "drivers/scsi/lpfc/lpfc_scsi.c"
          ],
          "defaultStatus": "affected"
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  ],
  "published": "2025-02-26T07:01:29.667",
  "references": [
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: lpfc: Fix call trace observed during I/O with CMF enabled\n\nThe following was seen with CMF enabled:\n\nBUG: using smp_processor_id() in preemptible\ncode: systemd-udevd/31711\nkernel: caller is lpfc_update_cmf_cmd+0x214/0x420  [lpfc]\nkernel: CPU: 12 PID: 31711 Comm: systemd-udevd\nkernel: Call Trace:\nkernel: <TASK>\nkernel: dump_stack_lvl+0x44/0x57\nkernel: check_preemption_disabled+0xbf/0xe0\nkernel: lpfc_update_cmf_cmd+0x214/0x420 [lpfc]\nkernel: lpfc_nvme_fcp_io_submit+0x23b4/0x4df0 [lpfc]\n\nthis_cpu_ptr() calls smp_processor_id() in a preemptible context.\n\nFix by using per_cpu_ptr() with raw_smp_processor_id() instead."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: lpfc: Se ha corregido el seguimiento de llamadas observado durante la E/S con CMF habilitado Se observó lo siguiente con CMF habilitado: ERROR: using smp_processor_id() in preemptible code: systemd-udevd/31711 kernel: caller is lpfc_update_cmf_cmd+0x214/0x420 [lpfc] kernel: CPU: 12 PID: 31711 Comm: systemd-udevd kernel: Call Trace: kernel:  kernel: dump_stack_lvl+0x44/0x57 kernel: check_preemption_disabled+0xbf/0xe0 kernel: lpfc_update_cmf_cmd+0x214/0x420 [lpfc] kernel: lpfc_nvme_fcp_io_submit+0x23b4/0x4df0 [lpfc] this_cpu_ptr() calls smp_processor_id() in a preemptible context. Fix by using per_cpu_ptr() with raw_smp_processor_id() instead. "
    }
  ],
  "lastModified": "2026-06-17T05:18:22.920",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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          "operator": "OR"
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}