ghsa-w8g3-68cc-2xq5
Vulnerability from github
Published
2025-10-21 12:31
Modified
2025-10-21 12:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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:

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: 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.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49537"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:29Z",
    "severity": "MODERATE"
  },
  "details": "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: \u003cTASK\u003e\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.",
  "id": "GHSA-w8g3-68cc-2xq5",
  "modified": "2025-10-21T12:31:26Z",
  "published": "2025-10-21T12:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49537"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/517e0835cfb2007713ff16c4fb8479f08b16aec7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae373d66c427812754db5292eb1481b181daf9ce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cd7f899de4b1b829125d72ee6fbfd878b637b815"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d6d45f67a11136cb88a70a29ab22ea6db8ae6bd5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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