Linux Kernel up to 6.19.8 ASoC acp3x_5682_init return null pointer dereference

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5.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.19.8. Affected by this issue is the function acp3x_5682_init of the component ASoC. The manipulation of the argument return results in null pointer dereference. This vulnerability is known as CVE-2026-43480. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.19.8. Affected is the function acp3x_5682_init of the component ASoC. The manipulation of the argument return with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: ASoC: amd: acp3x-rt5682-max9836: Add missing error check for clock acquisition The acp3x_5682_init() function did not check the return value of clk_get(), which could lead to dereferencing error pointers in rt5682_clk_enable(). Fix this by: 1. Changing clk_get() to the device-managed devm_clk_get(). 2. Adding proper IS_ERR() checks for both clock acquisitions.

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2026-43480 since 05/01/2026. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 314479 (Linux Distros Unpatched Vulnerability : CVE-2026-43480), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.253, 5.15.203, 6.1.167, 6.6.130, 6.12.78, 6.18.19 or 6.19.9 eliminates this vulnerability. Applying the patch 2dc43ac8da7b2bebc5a51a3d86a6275d78f27cff/4d802f23fcbfec05134653fd001f6c7c3fd55196/2b0c4a399c8d27f20ecf17dda76751141d6dbb59/35c7624d30cb45ec336cd16ce072acc32ae351cb/33de168afdd57265a0e0c20dbd3648a2d8f7cdc4/790851ecc983c719fa2e6adb17b02f3acc1d217d/092522621901b5e6af61db04a53f5b313903c6d0/53f3a900e9a383d47af7253076e19f510c5708d0 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (314479) and CERT Bund (WID-SEC-2026-1531). Once again VulDB remains the best source for vulnerability data.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • SUSE Linux
  • Oracle Linux
  • Open Source Linux Kernel
  • Ubuntu Linux

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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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: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 314479
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-43480

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.253/5.15.203/6.1.167/6.6.130/6.12.78/6.18.19/6.19.9
Patch: 2dc43ac8da7b2bebc5a51a3d86a6275d78f27cff/4d802f23fcbfec05134653fd001f6c7c3fd55196/2b0c4a399c8d27f20ecf17dda76751141d6dbb59/35c7624d30cb45ec336cd16ce072acc32ae351cb/33de168afdd57265a0e0c20dbd3648a2d8f7cdc4/790851ecc983c719fa2e6adb17b02f3acc1d217d/092522621901b5e6af61db04a53f5b313903c6d0/53f3a900e9a383d47af7253076e19f510c5708d0

Timelineinfo

05/01/2026 CVE reserved
05/13/2026 +12 days Advisory disclosed
05/13/2026 +0 days VulDB entry created
07/23/2026 +70 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-43480 (🔒)
GCVE (CVE): GCVE-0-2026-43480
GCVE (VulDB): GCVE-100-363540
CERT Bund: WID-SEC-2026-1531 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 05/13/2026 17:36
Updated: 07/23/2026 01:29
Changes: 05/13/2026 17:36 (60), 05/14/2026 10:52 (2), 05/17/2026 17:19 (7), 06/26/2026 23:07 (10), 07/23/2026 01:29 (1)
Complete: 🔍
Cache ID: 216::103

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