{"id":"AZL-104387","summary":"CVE-2026-97929 affecting package kernel 6.6.157.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usbusx2y: validate URB actual_length in interrupt callback\n\ni_usx2y_in04_int() processes the interrupt URB data without checking\nurb-\u003eactual_length.  A short transfer from a malfunctioning device\nwould cause the handler to process uninitialized heap data from the\nkmalloc-allocated in04_buf, which is then copied to the mmap-accessible\nctl_snapshot[] array.\n\nFix by using kzalloc() for in04_buf to zero-initialize the buffer,\nand adding an actual_length check to skip processing on short\ntransfers while still resubmitting the URB.","modified":"2026-09-26T14:16:20.715503050Z","published":"2026-09-25T11:17:20Z","upstream":["CVE-2026-97929"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97929"}],"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-104387.json"}}],"schema_version":"1.9.0"}