{"id":"CVE-2026-97930","title":"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(str…","summary":"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(str…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-125"],"vendor":"Linux","product":"Linux","affected":["Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e75e4b0e647137f4c9f6dee4a7ef5b7b09e16f57","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 869fb83c072e884b80d93eab498e6040ffb010ba","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d170cfbe38c8817ac787f605655546a6d343017d","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 229cab526580f82839ae8e4e379753c8cf16952e","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 381495b5b3da12d714e53d9d12d955b13fe26eac","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b5753bdfd909f7f095fb464d67802b5e52cbadbf","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 861111a14740e12c36d363e9830f8daa734279c9","Linux 2.6.12"],"published":"2026-09-25","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:18:10.800","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97930","references":[{"url":"https://git.kernel.org/stable/c/229cab526580f82839ae8e4e379753c8cf16952e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/381495b5b3da12d714e53d9d12d955b13fe26eac","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/861111a14740e12c36d363e9830f8daa734279c9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/869fb83c072e884b80d93eab498e6040ffb010ba","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b5753bdfd909f7f095fb464d67802b5e52cbadbf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d170cfbe38c8817ac787f605655546a6d343017d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e75e4b0e647137f4c9f6dee4a7ef5b7b09e16f57","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97930.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-97930"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541134"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97930"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97930"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97930.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00206,"epssPercentile":0.1051,"cvssSource":"vendor","ingestedAt":"2026-09-25T11:06:38.886Z","slug":"CVE-2026-97930","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97930.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":213441,"id":"CVE-2026-97930","ts":1790754722188,"field":"cvss","old":null,"new":"5.5"},{"seq":213440,"id":"CVE-2026-97930","ts":1790754722188,"field":"severity","old":"none","new":"medium"}]}