{"id":"CVE-2024-56532","summary":"ALSA: us122l: Use snd_card_free_when_closed() at disconnection","details":"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().","modified":"2026-04-02T12:24:34.316099Z","published":"2024-12-27T14:11:15.266Z","related":["SUSE-SU-2025:0289-1","SUSE-SU-2025:0428-1","SUSE-SU-2025:0499-1","SUSE-SU-2025:0556-1","SUSE-SU-2025:0557-1","SUSE-SU-2025:0565-1","SUSE-SU-2025:0577-1","SUSE-SU-2025:0577-2","SUSE-SU-2025:20165-1","SUSE-SU-2025:20166-1","SUSE-SU-2025:20248-1","SUSE-SU-2025:20249-1","USN-7276-1","USN-7277-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56532.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/020cbc4d7414f0962004213e2b7bc5cc607e9ec7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2938dd2648522336133c151dd67bb9bf01cbd390"},{"type":"WEB","url":"https://git.kernel.org/stable/c/75f418b249d84021865eaa59515d3ed9b75ce4d6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9a48bd2184b142c92a4e17eac074c61fcf975bc9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9b27924dc8d7f8a8c35e521287d4ccb9a006e597"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9d5c530e4d70f64b1114f2cc29ac690ba7ac4a38"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b7df09bb348016943f56b09dcaafe221e3f73947"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bc778ad3e495333eebda36fe91d5b2c93109cc16"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bf0aa35a7cb8602cccf2387712114e836f65c154"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56532.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-56532"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"030a07e441296c372f946cd4065b5d831d8dc40c"},{"fixed":"020cbc4d7414f0962004213e2b7bc5cc607e9ec7"},{"fixed":"75f418b249d84021865eaa59515d3ed9b75ce4d6"},{"fixed":"bf0aa35a7cb8602cccf2387712114e836f65c154"},{"fixed":"9a48bd2184b142c92a4e17eac074c61fcf975bc9"},{"fixed":"bc778ad3e495333eebda36fe91d5b2c93109cc16"},{"fixed":"2938dd2648522336133c151dd67bb9bf01cbd390"},{"fixed":"9b27924dc8d7f8a8c35e521287d4ccb9a006e597"},{"fixed":"9d5c530e4d70f64b1114f2cc29ac690ba7ac4a38"},{"fixed":"b7df09bb348016943f56b09dcaafe221e3f73947"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56532.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}