{"id":"AZL-104204","summary":"CVE-2026-97930 affecting package kernel 6.6.157.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usbusx2y: fix in04_last array size mismatch with in04_buf\n\nThe in04_last array in struct usx2ydev is declared as char[24], but\nin04_buf is allocated as sizeof(struct us428_ctls) which is 21 bytes.\nIn i_usx2y_in04_int(), when ctl_snapshot_last == -2 (initialization\npath):\n\n    memcpy(usx2y-\u003ein04_last, usx2y-\u003ein04_buf, sizeof(usx2y-\u003ein04_last));\n\nThis copies 24 bytes from a 21-byte slab allocation, reading 3 bytes\npast the end of the source object.\n\nIntroduce a USX2Y_IN04_SIZE constant defined as sizeof(struct\nus428_ctls) and use it consistently for the in04_last array, the\nin04_buf allocation, the URB transfer length, and the comparison loop,\nreplacing the bare 24 and 21 literals throughout.","modified":"2026-09-29T05:37:47Z","published":"2026-09-25T11:17:20Z","upstream":["CVE-2026-97930"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97930"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.6.157.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-104204.json"}}],"schema_version":"1.9.0"}