github - ghsa-j4hq-f3qw-86xx

GHSA-J4HQ-F3QW-86XX

Vulnerability from github – Published: 2025-12-24 12:30 – Updated: 2025-12-24 12:30

Details

In the Linux kernel, the following vulnerability has been resolved:

ALSA: usb-audio: Fix potential memory leaks at error path for UMP open

The allocation and initialization errors at alloc_midi_urbs() that is called at MIDI 2.0 / UMP device are supposed to be handled at the caller side by invoking free_midi_urbs(). However, free_midi_urbs() loops only for ep->num_urbs entries, and since ep->num_entries wasn't updated yet at the allocation / init error in alloc_midi_urbs(), this entry won't be released.

The intention of free_midi_urbs() is to release the whole elements, so change the loop size to NUM_URBS to scan over all elements for fixing the missed releases.

Also, the call of free_midi_urbs() is missing at snd_usb_midi_v2_open(). Although it'll be released later at reopen/close or disconnection, it's better to release immediately at the error path.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-54022"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-24T11:15:55Z",
    "severity": null
  },
  "details": "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-\u003enum_urbs entries, and since ep-\u003enum_entries wasn\u0027t\nupdated yet at the allocation / init error in alloc_midi_urbs(), this\nentry won\u0027t 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\u0027ll be released later at\nreopen/close or disconnection, it\u0027s better to release immediately at\nthe error path.",
  "id": "GHSA-j4hq-f3qw-86xx",
  "modified": "2025-12-24T12:30:28Z",
  "published": "2025-12-24T12:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54022"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b1757fa30ef14f254f4719bf6f7d54a4c8207216"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f819b343aa95d24d5f7d6e06660c7f62591abc5f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2023-54022 (GCVE-0-2023-54022)

Vulnerability from cvelistv5 – Published: 2025-12-24 10:55 – Updated: 2025-12-24 10:55

Title

ALSA: usb-audio: Fix potential memory leaks at error path for UMP open

Summary

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix potential memory leaks at error path for UMP open The allocation and initialization errors at alloc_midi_urbs() that is called at MIDI 2.0 / UMP device are supposed to be handled at the caller side by invoking free_midi_urbs(). However, free_midi_urbs() loops only for ep->num_urbs entries, and since ep->num_entries wasn't updated yet at the allocation / init error in alloc_midi_urbs(), this entry won't be released. The intention of free_midi_urbs() is to release the whole elements, so change the loop size to NUM_URBS to scan over all elements for fixing the missed releases. Also, the call of free_midi_urbs() is missing at snd_usb_midi_v2_open(). Although it'll be released later at reopen/close or disconnection, it's better to release immediately at the error path.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/f819b343aa95d24d5…
	https://git.kernel.org/stable/c/b1757fa30ef14f254…

Impacted products

Vendor

Product

Version

Linux

Affected: ff49d1df79aef7580fe3ac99d17c3f886655d080 , < f819b343aa95d24d5f7d6e06660c7f62591abc5f (git)
Affected: ff49d1df79aef7580fe3ac99d17c3f886655d080 , < b1757fa30ef14f254f4719bf6f7d54a4c8207216 (git)

Linux

Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.5.3 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/usb/midi2.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f819b343aa95d24d5f7d6e06660c7f62591abc5f",
              "status": "affected",
              "version": "ff49d1df79aef7580fe3ac99d17c3f886655d080",
              "versionType": "git"
            },
            {
              "lessThan": "b1757fa30ef14f254f4719bf6f7d54a4c8207216",
              "status": "affected",
              "version": "ff49d1df79aef7580fe3ac99d17c3f886655d080",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/usb/midi2.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.5"
            },
            {
              "lessThan": "6.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5.3",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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-\u003enum_urbs entries, and since ep-\u003enum_entries wasn\u0027t\nupdated yet at the allocation / init error in alloc_midi_urbs(), this\nentry won\u0027t 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\u0027ll be released later at\nreopen/close or disconnection, it\u0027s better to release immediately at\nthe error path."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-24T10:55:52.045Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f819b343aa95d24d5f7d6e06660c7f62591abc5f"
        },
        {
          "url": "https://git.kernel.org/stable/c/b1757fa30ef14f254f4719bf6f7d54a4c8207216"
        }
      ],
      "title": "ALSA: usb-audio: Fix potential memory leaks at error path for UMP open",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54022",
    "datePublished": "2025-12-24T10:55:52.045Z",
    "dateReserved": "2025-12-24T10:53:46.179Z",
    "dateUpdated": "2025-12-24T10:55:52.045Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-J4HQ-F3QW-86XX

CVE-2023-54022 (GCVE-0-2023-54022)

Tags

Sightings

Nomenclature