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CVE-2026-63962 usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes()

🗓️ 19 Jul 2026 14:55:51Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 40 Views

Linux kernel fix: bound check moved inside svdm_consume_modes loop to prevent out-of-bounds altmode descriptions.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/usb/typec/tcpm/tcpm.c"
    ],
    "versions": [
      {
        "version": "4ab8c18d4d67321cc7b660559de17511d4fc0237",
        "lessThan": "845598b154b9a92e9d279fafafa9405c121ae805",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4ab8c18d4d67321cc7b660559de17511d4fc0237",
        "lessThan": "4505f33dab56c274e82f47f94bf60a8cbf8f4b42",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4ab8c18d4d67321cc7b660559de17511d4fc0237",
        "lessThan": "cbad85b446c06adbc5e5bed565871bb918ce9d32",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4ab8c18d4d67321cc7b660559de17511d4fc0237",
        "lessThan": "3389c149c68c3fea61910ad5d34f7bf3bff44e32",
        "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/usb/typec/tcpm/tcpm.c"
    ],
    "versions": [
      {
        "version": "4.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.93",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.35",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.12",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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