CVE-2024-56532 (GCVE-0-2024-56532)

Vulnerability from cvelistv5 – Published: 2024-12-27 14:11 – Updated: 2025-11-03 20:49
VLAI?
Title
ALSA: us122l: Use snd_card_free_when_closed() at disconnection
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: us122l: Use snd_card_free_when_closed() at disconnection The USB disconnect callback is supposed to be short and not too-long waiting. OTOH, the current code uses snd_card_free() at disconnection, but this waits for the close of all used fds, hence it can take long. It eventually blocks the upper layer USB ioctls, which may trigger a soft lockup. An easy workaround is to replace snd_card_free() with snd_card_free_when_closed(). This variant returns immediately while the release of resources is done asynchronously by the card device release at the last close. The loop of us122l->mmap_count check is dropped as well. The check is useless for the asynchronous operation with *_when_closed().
CWE
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: 030a07e441296c372f946cd4065b5d831d8dc40c , < 020cbc4d7414f0962004213e2b7bc5cc607e9ec7 (git)
Affected: 030a07e441296c372f946cd4065b5d831d8dc40c , < 75f418b249d84021865eaa59515d3ed9b75ce4d6 (git)
Affected: 030a07e441296c372f946cd4065b5d831d8dc40c , < bf0aa35a7cb8602cccf2387712114e836f65c154 (git)
Affected: 030a07e441296c372f946cd4065b5d831d8dc40c , < 9a48bd2184b142c92a4e17eac074c61fcf975bc9 (git)
Affected: 030a07e441296c372f946cd4065b5d831d8dc40c , < bc778ad3e495333eebda36fe91d5b2c93109cc16 (git)
Affected: 030a07e441296c372f946cd4065b5d831d8dc40c , < 2938dd2648522336133c151dd67bb9bf01cbd390 (git)
Affected: 030a07e441296c372f946cd4065b5d831d8dc40c , < 9b27924dc8d7f8a8c35e521287d4ccb9a006e597 (git)
Affected: 030a07e441296c372f946cd4065b5d831d8dc40c , < 9d5c530e4d70f64b1114f2cc29ac690ba7ac4a38 (git)
Affected: 030a07e441296c372f946cd4065b5d831d8dc40c , < b7df09bb348016943f56b09dcaafe221e3f73947 (git)
Create a notification for this product.
    Linux Linux Affected: 2.6.28
Unaffected: 0 , < 2.6.28 (semver)
Unaffected: 4.19.325 , ≤ 4.19.* (semver)
Unaffected: 5.4.287 , ≤ 5.4.* (semver)
Unaffected: 5.10.231 , ≤ 5.10.* (semver)
Unaffected: 5.15.174 , ≤ 5.15.* (semver)
Unaffected: 6.1.120 , ≤ 6.1.* (semver)
Unaffected: 6.6.64 , ≤ 6.6.* (semver)
Unaffected: 6.11.11 , ≤ 6.11.* (semver)
Unaffected: 6.12.2 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website

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\"https://git.kernel.org/stable/c/2938dd2648522336133c151dd67bb9bf01cbd390\"}, {\"url\": \"https://git.kernel.org/stable/c/9b27924dc8d7f8a8c35e521287d4ccb9a006e597\"}, {\"url\": \"https://git.kernel.org/stable/c/9d5c530e4d70f64b1114f2cc29ac690ba7ac4a38\"}, {\"url\": \"https://git.kernel.org/stable/c/b7df09bb348016943f56b09dcaafe221e3f73947\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nALSA: us122l: Use snd_card_free_when_closed() at disconnection\\n\\nThe USB disconnect callback is supposed to be short and not too-long\\nwaiting.  OTOH, the current code uses snd_card_free() at\\ndisconnection, but this waits for the close of all used fds, hence it\\ncan take long.  It eventually blocks the upper layer USB ioctls, which\\nmay trigger a soft lockup.\\n\\nAn easy workaround is to replace snd_card_free() with\\nsnd_card_free_when_closed().  This variant returns immediately while\\nthe release of resources is done asynchronously by the card device\\nrelease at the last close.\\n\\nThe loop of us122l-\u003emmap_count check is dropped as well.  The check is\\nuseless for the asynchronous operation with *_when_closed().\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.325\", \"versionStartIncluding\": \"2.6.28\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.287\", \"versionStartIncluding\": \"2.6.28\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.231\", \"versionStartIncluding\": \"2.6.28\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.174\", \"versionStartIncluding\": \"2.6.28\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.120\", \"versionStartIncluding\": \"2.6.28\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.64\", \"versionStartIncluding\": \"2.6.28\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.11\", \"versionStartIncluding\": \"2.6.28\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.2\", \"versionStartIncluding\": \"2.6.28\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13\", \"versionStartIncluding\": \"2.6.28\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:57:27.794Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-56532\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-01T20:07:17.590Z\", \"dateReserved\": \"2024-12-27T14:03:05.984Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-12-27T14:11:15.266Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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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.


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