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CVE-2025-39684 comedi: Fix use of uninitialized memory in do_insn_ioctl() and do_insnlist_ioctl()

🗓️ 05 Sep 2025 17:20:50Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 12 Views

Fix uninitialized memory in do_insn_ioctl and do_insnlist_ioctl by zeroing unused buffer parts to prevent leaks.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/comedi/comedi_fops.c"
    ],
    "versions": [
      {
        "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
        "lessThan": "868a1b68dcd9f2805bb86aa64862402f785d8c4a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
        "lessThan": "ff4a7c18799c7fe999fa56c5cf276e13866b8c1a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
        "lessThan": "d84f6e77ebe3359394df32ecd97e0d76a25283dc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
        "lessThan": "f3b0c9ec54736f3b8118f93a473d22e11ee65743",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
        "lessThan": "aecf0d557ddd95ce68193a5ee1dc4c87415ff08a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
        "lessThan": "3cd212e895ca2d58963fdc6422502b10dd3966bb",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/comedi/comedi_fops.c"
    ],
    "versions": [
      {
        "version": "2.6.29",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.29",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.190",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.149",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.103",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.44",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.16.4",
        "lessThanOrEqual": "6.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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