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CVE-2026-74501 ALSA: usb-audio: fix use-after-free in ump_to_endpoint()

🗓️ 15 Aug 2026 12:27:26Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 32 Views

ALSA usb-audio use-after-free in ump_to_endpoint() triggered by malicious USB MIDI 2.0 device causing slab memory read.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "sound/usb/midi2.c"
    ],
    "versions": [
      {
        "version": "ff49d1df79aef7580fe3ac99d17c3f886655d080",
        "lessThan": "49eccef6d6e1c00dac6fb2e7eb6f9206c33e1c37",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ff49d1df79aef7580fe3ac99d17c3f886655d080",
        "lessThan": "8a7a33b846d6ba695891b8d0040027cdbad8cd52",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ff49d1df79aef7580fe3ac99d17c3f886655d080",
        "lessThan": "cc014ebf803174f0e5d15956dfc5a38413c945ae",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ff49d1df79aef7580fe3ac99d17c3f886655d080",
        "lessThan": "ae388c0e1bf727972096f770f82d12e4f748d1b6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ff49d1df79aef7580fe3ac99d17c3f886655d080",
        "lessThan": "4a05b2d1b4642df74f30b6f54843e825c4a2bfd3",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "sound/usb/midi2.c"
    ],
    "versions": [
      {
        "version": "6.5",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.5",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.151",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.103",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.44",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.8",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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