{"id":"CVE-2026-97930","published":"2026-09-25T11:17:20.277","lastModified":"2026-09-25T11:17:20.277","description":"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->in04_last, usx2y->in04_buf, sizeof(usx2y->in04_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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/229cab526580f82839ae8e4e379753c8cf16952e","tags":[]},{"url":"https://git.kernel.org/stable/c/381495b5b3da12d714e53d9d12d955b13fe26eac","tags":[]},{"url":"https://git.kernel.org/stable/c/861111a14740e12c36d363e9830f8daa734279c9","tags":[]},{"url":"https://git.kernel.org/stable/c/b5753bdfd909f7f095fb464d67802b5e52cbadbf","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}