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CVE-2026-43250 usb: chipidea: udc: fix DMA and SG cleanup in _ep_nuke()

🗓️ 06 May 2026 11:28:41Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 58 Views

Fix DMA unmapping and bounce buffer cleanup in _ep_nuke to prevent stale DMA state after USB reconnect.

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/chipidea/udc.c"
    ],
    "versions": [
      {
        "version": "aa69a8093ff985873cb44fe1157bd6db29a20fe4",
        "lessThan": "1b72b834511d17f4d069d512f78671f3f210a2f1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "aa69a8093ff985873cb44fe1157bd6db29a20fe4",
        "lessThan": "f4fbf2d4750d12ac8525d2efac1016fa0d84d4ec",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "aa69a8093ff985873cb44fe1157bd6db29a20fe4",
        "lessThan": "e74c436f8568af1c60942469d0a2300b3ada3857",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "aa69a8093ff985873cb44fe1157bd6db29a20fe4",
        "lessThan": "cea2a1257a3b5ea3e769a445b34af13e6aa5a123",
        "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/chipidea/udc.c"
    ],
    "versions": [
      {
        "version": "2.6.29",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.29",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.75",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.16",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.6",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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