Linux Kernel up to 6.12.110/6.18.52 ASoC mt8365_afe_suspend reg_back_up null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.22+

Summaryinfo

A vulnerability labeled as critical has been found in Linux Kernel up to 6.12.110/6.18.52. The affected element is the function mt8365_afe_suspend of the component ASoC. Such manipulation of the argument reg_back_up leads to null pointer dereference. This vulnerability is referenced as CVE-2026-97414. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.12.110/6.18.52. It has been rated as critical. Affected by this issue is the function mt8365_afe_suspend of the component ASoC. The manipulation of the argument reg_back_up with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: ASoC: mediatek: mt8365-afe-pcm: fix possible NULL-pointer dereferences in mt8365_afe_suspend() mt8365_afe_suspend() allocates the register backup buffer with devm_kcalloc(), but does not check for allocation failure before using the returned pointer. This may lead to a NULL pointer dereference when accessing afe->reg_back_up[i]. Add the missing NULL check and return -ENOMEM on allocation failure after disabling the main clock. Also propagate the return value of mt8365_afe_suspend() in mt8365_afe_dev_runtime_suspend() so that the suspended state is not updated when suspend fails.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2026-97414 since 09/24/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/24/2026).

Upgrading to version 6.12.111 or 6.18.53 eliminates this vulnerability. Applying the patch f87707bc0406fe92bc142a9eee5f480c94ce9ff8/1094d83ad325829acd68e63147793536060a0d60/b8948ac26efc395264a47f9a743889065adb5cff is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Null pointer dereference
CWE: CWE-476 / CWE-404
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 6.12.111/6.18.53
Patch: f87707bc0406fe92bc142a9eee5f480c94ce9ff8/1094d83ad325829acd68e63147793536060a0d60/b8948ac26efc395264a47f9a743889065adb5cff

Timelineinfo

09/24/2026 Advisory disclosed
09/24/2026 +0 days CVE reserved
09/24/2026 +0 days VulDB entry created
09/24/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-97414 (🔒)
GCVE (CVE): GCVE-0-2026-97414
GCVE (VulDB): GCVE-100-409580

Entryinfo

Created: 09/24/2026 19:26
Changes: 09/24/2026 19:26 (60)
Complete: 🔍
Cache ID: 216::103

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