{"schemaVersion":3,"id":"CVE-2023-54022","aliases":["UBUNTU-CVE-2023-54022"],"status":"published","duplicateOf":null,"title":null,"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Fix potential memory leaks at error path for UMP open\n\nThe allocation and initialization errors at alloc_midi_urbs() that is\ncalled at MIDI 2.0 / UMP device are supposed to be handled at the\ncaller side by invoking free_midi_urbs().  However, free_midi_urbs()\nloops only for ep->num_urbs entries, and since ep->num_entries wasn't\nupdated yet at the allocation / init error in alloc_midi_urbs(), this\nentry won't be released.\n\nThe intention of free_midi_urbs() is to release the whole elements, so\nchange the loop size to NUM_URBS to scan over all elements for fixing\nthe missed releases.\n\nAlso, the call of free_midi_urbs() is missing at\nsnd_usb_midi_v2_open().  Although it'll be released later at\nreopen/close or disconnection, it's better to release immediately at\nthe error path.","dates":{"published":"2025-12-24T10:55:52.045Z","modified":"2026-05-11T19:53:46.898Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":0.00173,"percentile":0.06358,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00173},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00169,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00169,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00169,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00169,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00169,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00173,"percentile":0.06358}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00173,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00173,"percentile":null},{"dat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