{"id":"CVE-2026-90068","published":"2026-09-17T17:16:55.697","lastModified":"2026-09-17T17:16:55.697","description":"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->items, but it lets item[1] be equal to it.  Both go on to\nsnd_soc_enum_item_to_val(), which indexes e->values 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>= 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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/10a36512c21f861a03fba461a7ead09023df9c1b","tags":[]},{"url":"https://git.kernel.org/stable/c/14511c9b54ceeeef487409d73947c89ee8563590","tags":[]},{"url":"https://git.kernel.org/stable/c/32fc048391112559c34cb88d13594546939a4cd6","tags":[]},{"url":"https://git.kernel.org/stable/c/496081b4edc1f6e662418831c5b14cddd8d7920c","tags":[]},{"url":"https://git.kernel.org/stable/c/55126ef66298e43c69f192acebae8c7cc0022cf6","tags":[]},{"url":"https://git.kernel.org/stable/c/57ab955bde747327fb2042516ae1b7192c30e881","tags":[]},{"url":"https://git.kernel.org/stable/c/806fa4e1f2bf73c54bc4b6360790ecc69d095ca5","tags":[]},{"url":"https://git.kernel.org/stable/c/faf539af1a595a26e5a081a4e512caee2bc2f4c5","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}