{"id":"CVE-2026-90068","summary":"ASoC: dapm: Fix off-by-one check on the second enum channel","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: dapm: Fix off-by-one check on the second enum channel\n\nThe snd_soc_dapm_put_enum_double() rejects item[0] once it reaches\ne-\u003eitems, but it lets item[1] be equal to it.  Both go on to\nsnd_soc_enum_item_to_val(), which indexes e-\u003evalues with no bound of\nits own, so an enum with a value table reads one element past the end.\n\nThe indexing arrived with the MUX consolidation, which relaxed the\nitem[1] check in the same hunk.  The value MUX handler it deleted used\n\u003e= there, and the snd_soc_put_enum_double() in soc-ops.c still does.\n\nOnly adav80x pairs a value table with two shifts, and its second\nchannel looks accidental, but the control does report two values.\nWriting three into it reads off the end of adav80x_mux_values.  The\ncore catches that only under CONFIG_SND_CTL_INPUT_VALIDATION, which\ndefaults off.","modified":"2026-09-19T03:47:24.093193031Z","published":"2026-09-17T16:05:50.251Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90068.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/10a36512c21f861a03fba461a7ead09023df9c1b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/14511c9b54ceeeef487409d73947c89ee8563590"},{"type":"WEB","url":"https://git.kernel.org/stable/c/32fc048391112559c34cb88d13594546939a4cd6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/496081b4edc1f6e662418831c5b14cddd8d7920c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/55126ef66298e43c69f192acebae8c7cc0022cf6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/57ab955bde747327fb2042516ae1b7192c30e881"},{"type":"WEB","url":"https://git.kernel.org/stable/c/806fa4e1f2bf73c54bc4b6360790ecc69d095ca5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/faf539af1a595a26e5a081a4e512caee2bc2f4c5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90068.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90068"},{"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":"3727b4968453dbab8fe18f979d67285eb6b66801"},{"fixed":"57ab955bde747327fb2042516ae1b7192c30e881"},{"fixed":"806fa4e1f2bf73c54bc4b6360790ecc69d095ca5"},{"fixed":"496081b4edc1f6e662418831c5b14cddd8d7920c"},{"fixed":"faf539af1a595a26e5a081a4e512caee2bc2f4c5"},{"fixed":"32fc048391112559c34cb88d13594546939a4cd6"},{"fixed":"10a36512c21f861a03fba461a7ead09023df9c1b"},{"fixed":"55126ef66298e43c69f192acebae8c7cc0022cf6"},{"fixed":"14511c9b54ceeeef487409d73947c89ee8563590"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90068.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.15.0"},{"fixed":"5.10.270"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.221"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90068.json"}}],"schema_version":"1.9.0"}