ASoC: dapm: Fix off-by-one check on the second enum channel
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 5 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-90068
- 2026-10-03 Alias added: GHSA-gx3g-862r-xxh6
- 2026-10-13 Affected versions changed · Red Hat
- 2026-10-13 CVSS score added · Red Hat
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/57ab955bde747327fb2042516ae1b7192c30e881
- https://git.kernel.org/stable/c/806fa4e1f2bf73c54bc4b6360790ecc69d095ca5
- https://git.kernel.org/stable/c/496081b4edc1f6e662418831c5b14cddd8d7920c
- https://git.kernel.org/stable/c/faf539af1a595a26e5a081a4e512caee2bc2f4c5
- https://git.kernel.org/stable/c/32fc048391112559c34cb88d13594546939a4cd6
- https://git.kernel.org/stable/c/10a36512c21f861a03fba461a7ead09023df9c1b
- https://git.kernel.org/stable/c/55126ef66298e43c69f192acebae8c7cc0022cf6
- https://git.kernel.org/stable/c/14511c9b54ceeeef487409d73947c89ee8563590
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Sources
- CVE-2026-90068 · CVE Program
- CVE-2026-90068 · NVD
- FIRST EPSS
- GHSA-gx3g-862r-xxh6 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-90068 · Red Hat security data · CC BY 4.0
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