Linux Kernel up to 7.2.5 ASoC DAPM soc-ops.c snd_soc_dapm_put_enum_double item/items/values off-by-one

CVSS Meta Temp Score
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CTI Interest Score
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7.0$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 7.2.5 and classified as critical. Affected by this vulnerability is the function snd_soc_dapm_put_enum_double of the file soc-ops.c of the component ASoC DAPM. This manipulation of the argument item/items/values causes off-by-one. The identification of this vulnerability is CVE-2026-90068. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 7.2.5. Affected by this vulnerability is the function snd_soc_dapm_put_enum_double of the file soc-ops.c of the component ASoC DAPM. The manipulation of the argument item/items/values with an unknown input leads to a off-by-one vulnerability. The CWE definition for the vulnerability is CWE-193. A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2026-90068 since 09/11/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/17/2026).

Upgrading to version 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6 or 7.3-rc1 eliminates this vulnerability. Applying the patch 57ab955bde747327fb2042516ae1b7192c30e881/806fa4e1f2bf73c54bc4b6360790ecc69d095ca5/496081b4edc1f6e662418831c5b14cddd8d7920c/faf539af1a595a26e5a081a4e512caee2bc2f4c5/32fc048391112559c34cb88d13594546939a4cd6/10a36512c21f861a03fba461a7ead09023df9c1b/55126ef66298e43c69f192acebae8c7cc0022cf6/14511c9b54ceeeef487409d73947c89ee8563590 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Off-by-one
CWE: CWE-193 / CWE-189
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.270/5.15.221/6.1.188/6.6.157/6.12.110/6.18.52/7.2.6/7.3-rc1
Patch: 57ab955bde747327fb2042516ae1b7192c30e881/806fa4e1f2bf73c54bc4b6360790ecc69d095ca5/496081b4edc1f6e662418831c5b14cddd8d7920c/faf539af1a595a26e5a081a4e512caee2bc2f4c5/32fc048391112559c34cb88d13594546939a4cd6/10a36512c21f861a03fba461a7ead09023df9c1b/55126ef66298e43c69f192acebae8c7cc0022cf6/14511c9b54ceeeef487409d73947c89ee8563590

Timelineinfo

09/11/2026 CVE reserved
09/17/2026 +6 days Advisory disclosed
09/17/2026 +0 days VulDB entry created
09/17/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-90068 (🔒)
GCVE (CVE): GCVE-0-2026-90068
GCVE (VulDB): GCVE-100-406549

Entryinfo

Created: 09/17/2026 18:36
Changes: 09/17/2026 18:36 (61)
Complete: 🔍
Cache ID: 216::103

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