{
  "cveId": "CVE-2025-39674",
  "url": "https://patchblox.com/security/cve/CVE-2025-39674",
  "summary": "CVE-2025-39674 is fixed in linux on 1 platform by DEBIAN-CVE-2025-39674 (version 6.16.5-1), released September 5, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  scsi: ufs: ufs-qcom: Fix ESI null pointer derefe...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  scsi: ufs: ufs-qcom: Fix ESI null pointer dereference  ESI/MSI is a performance optimization feature that provides dedicated interrupts per MCQ hardware queue. This is optional feature and UFS MCQ should work with and without ESI feature.  Commit e46a28cea29a (\u0022scsi: ufs: qcom: Remove the MSI descriptor abuse\u0022) brings a regression in ESI (Enhanced System Interrupt) configuration that causes a null pointer dereference when Platform MSI allocation fails.  The issue occurs in when platform_device_msi_init_and_alloc_irqs() in ufs_qcom_config_esi() fails (returns -EINVAL) but the current code uses __free() macro for automatic cleanup free MSI resources that were never successfully allocated.  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008    Call trace:   mutex_lock\u002B0xc/0x54 (P)   platform_device_msi_free_irqs_all\u002B0x1c/0x40   ufs_qcom_config_esi\u002B0x1d0/0x220 [ufs_qcom]   ufshcd_config_mcq\u002B0x28/0x104   ufshcd_init\u002B0xa3c/0xf40   ufshcd_pltfrm_init\u002B0x504/0x7d4   ufs_qcom_probe\u002B0x20/0x58 [ufs_qcom]  Fix by restructuring the ESI configuration to try MSI allocation first, before any other resource allocation and instead use explicit cleanup instead of __free() macro to avoid cleanup of unallocated resources.  Tested on SM8750 platform with MCQ enabled, both with and without Platform ESI support.",
  "published": "2025-09-05T18:15:43Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.0014,
  "epssPercentile": 0.03381,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.16.5-1",
      "fix": "DEBIAN-CVE-2025-39674",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-39674",
      "released": "2025-09-05T18:15:43Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}