CVE-2026-90068 (GCVE-0-2026-90068)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:05 – Updated: 2026-09-17 16:05
VLAI
Title
ASoC: dapm: Fix off-by-one check on the second enum channel
Summary
In the Linux kernel, the following vulnerability has been resolved: ASoC: dapm: Fix off-by-one check on the second enum channel The snd_soc_dapm_put_enum_double() rejects item[0] once it reaches e->items, but it lets item[1] be equal to it. Both go on to snd_soc_enum_item_to_val(), which indexes e->values with no bound of its own, so an enum with a value table reads one element past the end. The indexing arrived with the MUX consolidation, which relaxed the item[1] check in the same hunk. The value MUX handler it deleted used >= there, and the snd_soc_put_enum_double() in soc-ops.c still does. Only adav80x pairs a value table with two shifts, and its second channel looks accidental, but the control does report two values. Writing three into it reads off the end of adav80x_mux_values. The core catches that only under CONFIG_SND_CTL_INPUT_VALIDATION, which defaults off.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 3727b4968453dbab8fe18f979d67285eb6b66801 , < 57ab955bde747327fb2042516ae1b7192c30e881 (git)
Affected: 3727b4968453dbab8fe18f979d67285eb6b66801 , < 806fa4e1f2bf73c54bc4b6360790ecc69d095ca5 (git)
Affected: 3727b4968453dbab8fe18f979d67285eb6b66801 , < 496081b4edc1f6e662418831c5b14cddd8d7920c (git)
Affected: 3727b4968453dbab8fe18f979d67285eb6b66801 , < faf539af1a595a26e5a081a4e512caee2bc2f4c5 (git)
Affected: 3727b4968453dbab8fe18f979d67285eb6b66801 , < 32fc048391112559c34cb88d13594546939a4cd6 (git)
Affected: 3727b4968453dbab8fe18f979d67285eb6b66801 , < 10a36512c21f861a03fba461a7ead09023df9c1b (git)
Affected: 3727b4968453dbab8fe18f979d67285eb6b66801 , < 55126ef66298e43c69f192acebae8c7cc0022cf6 (git)
Affected: 3727b4968453dbab8fe18f979d67285eb6b66801 , < 14511c9b54ceeeef487409d73947c89ee8563590 (git)
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Linux Linux Affected: 3.15
Unaffected: 0 , < 3.15 (semver)
Unaffected: 5.10.270 , ≤ 5.10.* (semver)
Unaffected: 5.15.221 , ≤ 5.15.* (semver)
Unaffected: 6.1.188 , ≤ 6.1.* (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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    "dateReserved": "2026-09-11T19:38:34.784Z",
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}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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