CVE-2024-56533

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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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/usb/usx2y/usbusx2y.c"], "versions": [{"version": "230cd5e24853ed4dd960461989b8ed0986d37a99", "lessThan": "24fe9f7ca83ec9acf765339054951f5cd9ae5c5d", "status": "affected", "versionType": "git"}, {"version": "230cd5e24853ed4dd960461989b8ed0986d37a99", "lessThan": "befcca1777525e37c659b4129d8ac7463b07ef67", "status": "affected", "versionType": "git"}, {"version": "230cd5e24853ed4dd960461989b8ed0986d37a99", "lessThan": "7bd8838c0ea886679a32834fdcacab296d072fbe", "status": "affected", "versionType": "git"}, {"version": "230cd5e24853ed4dd960461989b8ed0986d37a99", "lessThan": "e07605d855c4104d981653146a330ea48f6266ed", "status": "affected", "versionType": "git"}, {"version": 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"https://git.kernel.org/stable/c/e07605d855c4104d981653146a330ea48f6266ed"}, {"url": "https://git.kernel.org/stable/c/ffbfc6c4330fc233698529656798bee44fea96f5"}, {"url": "https://git.kernel.org/stable/c/e869642a77a9b3b98b0ab2c8fec7af4385140909"}, {"url": "https://git.kernel.org/stable/c/dafb28f02be407e07a6f679e922a626592b481b0"}], "title": "ALSA: usx2y: Use snd_card_free_when_closed() at disconnection", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2024-56533", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical 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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."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.231", "versionStartIncluding": "2.6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.174", "versionStartIncluding": "2.6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.120", "versionStartIncluding": "2.6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.64", "versionStartIncluding": "2.6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11.11", "versionStartIncluding": "2.6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.2", "versionStartIncluding": "2.6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.13", "versionStartIncluding": "2.6.13"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T09:57:29.687Z"}}}, "cveMetadata": {"cveId": "CVE-2024-56533", "state": "PUBLISHED", "dateUpdated": "2025-11-03T20:49:16.578Z", "dateReserved": "2024-12-27T14:03:05.985Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-12-27T14:11:16.256Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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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."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ALSA: usx2y: Usar snd_card_free_when_closed() en la desconexi\u00f3n Se supone que la devoluci\u00f3n de llamada de desconexi\u00f3n USB es corta y no requiere una espera demasiado larga. Por otro lado, el c\u00f3digo actual usa snd_card_free() en la desconexi\u00f3n, pero esto espera el cierre de todos los fds usados, por lo tanto, puede tomar mucho tiempo. Eventualmente bloquea los ioctl USB de la capa superior, lo que puede desencadenar un bloqueo suave. Una soluci\u00f3n f\u00e1cil es reemplazar snd_card_free() con snd_card_free_when_closed(). Esta variante regresa inmediatamente mientras que la liberaci\u00f3n de recursos se realiza de forma asincr\u00f3nica por la liberaci\u00f3n del dispositivo de la tarjeta en el \u00faltimo cierre."}], "id": "CVE-2024-56533", "lastModified": "2026-06-17T08:12:19.560", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-56533", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T20:02:46.027928Z", "version": "2.0.3"}}]}, "published": "2024-12-27T14:15:32.800", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/24fe9f7ca83ec9acf765339054951f5cd9ae5c5d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7bd8838c0ea886679a32834fdcacab296d072fbe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/befcca1777525e37c659b4129d8ac7463b07ef67"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dafb28f02be407e07a6f679e922a626592b481b0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e07605d855c4104d981653146a330ea48f6266ed"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e869642a77a9b3b98b0ab2c8fec7af4385140909"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ffbfc6c4330fc233698529656798bee44fea96f5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-667"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: ALSA: usx2y: Use snd_card_free_when_closed() at disconnection", "id": "2334498", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334498"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-459", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nALSA: usx2y: Use snd_card_free_when_closed() at disconnection\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.\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."], "name": "CVE-2024-56533", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-12-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-56533\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-56533\nhttps://lore.kernel.org/linux-cve-announce/2024122724-CVE-2024-56533-5de6@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-07-13T11:22:51.625093+00:00", "updated": "2025-07-13T11:22:51.625163+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}