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CVE-2026-90068· NVD / CVE Program· CNA Linux

ASoC: dapm: Fix off-by-one check on the second enum channel

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.

—No exploit Fix available
Published
Sep 17, 2026
Updated
Sep 17, 2026
EPSS
0.2% · 11th percentile
CWE
—
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Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Noroxi analysis

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Affected systems

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Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 3.15affected
    • 3727b4968453dbab8fe18f979d67285eb6b66801 and later · before 57ab955bde747327fb2042516ae1b7192c30e881affected · git
    • 3727b4968453dbab8fe18f979d67285eb6b66801 and later · before 806fa4e1f2bf73c54bc4b6360790ecc69d095ca5affected · git
    • 3727b4968453dbab8fe18f979d67285eb6b66801 and later · before 496081b4edc1f6e662418831c5b14cddd8d7920caffected · git
    • 3727b4968453dbab8fe18f979d67285eb6b66801 and later · before faf539af1a595a26e5a081a4e512caee2bc2f4c5affected · git
    • 3727b4968453dbab8fe18f979d67285eb6b66801 and later · before 32fc048391112559c34cb88d13594546939a4cd6affected · git
    • 3727b4968453dbab8fe18f979d67285eb6b66801 and later · before 10a36512c21f861a03fba461a7ead09023df9c1baffected · git
    • 3727b4968453dbab8fe18f979d67285eb6b66801 and later · before 55126ef66298e43c69f192acebae8c7cc0022cf6affected · git
    • 3727b4968453dbab8fe18f979d67285eb6b66801 and later · before 14511c9b54ceeeef487409d73947c89ee8563590affected · git
    • before 3.15not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxall versions—
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

Same product

linux: all records

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Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux10a36512c21f861a03fba461a7ead09023df9c1bVendor (CNA)
Linux Linux14511c9b54ceeeef487409d73947c89ee8563590Vendor (CNA)
Linux Linux32fc048391112559c34cb88d13594546939a4cd6Vendor (CNA)
Linux Linux496081b4edc1f6e662418831c5b14cddd8d7920cVendor (CNA)
Linux Linux55126ef66298e43c69f192acebae8c7cc0022cf6Vendor (CNA)
Linux Linux57ab955bde747327fb2042516ae1b7192c30e881Vendor (CNA)
Linux Linux806fa4e1f2bf73c54bc4b6360790ecc69d095ca5Vendor (CNA)
Linux Linuxfaf539af1a595a26e5a081a4e512caee2bc2f4c5Vendor (CNA)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

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No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records