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CVE-2026-53241 ALSA: seq: dummy: fix UMP event stack overread

🗓️ 25 Jun 2026 08:39:36Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 39 Views

ALSA dummy sequencer fixes UMP event stack overread by preserving packet size before routing.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "sound/core/seq/seq_dummy.c"
    ],
    "versions": [
      {
        "version": "32cb23a0f911317cdb5030035e49a204aa86fef5",
        "lessThan": "a7ef78a2c536242ccb7a4429da01580b2409bb24",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "32cb23a0f911317cdb5030035e49a204aa86fef5",
        "lessThan": "6671a46144f880c5a167930ebb14c12f3d059fe9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "32cb23a0f911317cdb5030035e49a204aa86fef5",
        "lessThan": "6676b6063440561db600494049ce7ffb695c8cc4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "32cb23a0f911317cdb5030035e49a204aa86fef5",
        "lessThan": "2b5ff4db5d7aa5b981d966df02e687f79ad7b311",
        "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/core/seq/seq_dummy.c"
    ],
    "versions": [
      {
        "version": "6.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.10",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.94",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.36",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.13",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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