Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: ASoC: amd: fix memory leak in acp3x pdm dma ops (CVE-2026-23190)
A memory leak vulnerability in the AMD SoC ALSA (ASoC) driver for the acp3x PDM DMA operations in the Linux kernel was identified and resolved. This issue is tracked as CVE-2026-23190. The vulnerability affects certain Linux kernel versions prior to specific patched releases. The flaw could lead to resource exhaustion impacting system availability. The issue has been addressed in updated Linux kernel packages provided by Ubuntu. Users should update to the fixed kernel versions and reboot to apply the changes. Due to an ABI change, recompilation and reinstallation of third-party kernel modules may be necessary after updating.
AI Analysis
Technical Summary
CVE-2026-23190 is a memory leak vulnerability in the AMD SoC ALSA (ASoC) driver, specifically in the acp3x PDM DMA operations within the Linux kernel. This flaw could cause a memory leak leading to potential denial of service through resource exhaustion (availability impact). The vulnerability affects multiple Linux kernel versions prior to the patched releases provided by Ubuntu. The issue is part of a broader set of Linux kernel security fixes released in May 2026. Ubuntu has issued updated kernel packages to remediate this and other vulnerabilities. Users must update their systems and reboot to apply the fixes. The update involves an ABI change requiring recompilation of third-party kernel modules.
Potential Impact
The vulnerability causes a memory leak in the AMD SoC ALSA driver, which can lead to resource exhaustion and impact system availability. There is no indication of confidentiality or integrity impact. The CVSS v3.1 base score is 5.5 (medium severity) with the vector AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H, indicating local attack vector with low complexity and low privileges required, no user interaction, unchanged scope, no confidentiality or integrity impact, and high impact on availability.
Mitigation Recommendations
A fix is available and has been released by Ubuntu in updated Linux kernel packages. Users should apply the standard system update to upgrade to the fixed kernel versions listed in the Ubuntu security notices (e.g., linux-image packages version 5.15.0-1111.118~20.04.1 or later). After updating, a system reboot is required to apply the changes. Due to an ABI change, all third-party kernel modules must be recompiled and reinstalled. If standard kernel metapackages are installed, the upgrade will handle this automatically. Check the Ubuntu security advisories USN-8278-1 and USN-8289-1 for detailed update instructions and package versions.
Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: ASoC: amd: fix memory leak in acp3x pdm dma ops (CVE-2026-23190)
Description
A memory leak vulnerability in the AMD SoC ALSA (ASoC) driver for the acp3x PDM DMA operations in the Linux kernel was identified and resolved. This issue is tracked as CVE-2026-23190. The vulnerability affects certain Linux kernel versions prior to specific patched releases. The flaw could lead to resource exhaustion impacting system availability. The issue has been addressed in updated Linux kernel packages provided by Ubuntu. Users should update to the fixed kernel versions and reboot to apply the changes. Due to an ABI change, recompilation and reinstallation of third-party kernel modules may be necessary after updating.
CVSS v3.1
Score 5.5medium
Affected software
pkg:deb/ubuntu/[email protected]~16.04.1?arch=source&distro=xenialpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/[email protected]~18.04.2?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]~18.04.1?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]?arch=source&distro=bionicpkg:deb/ubuntu/[email 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protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=questingpkg:deb/ubuntu/[email protected]?arch=source&distro=questingRun on your own infrastructure? 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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-23190 is a memory leak vulnerability in the AMD SoC ALSA (ASoC) driver, specifically in the acp3x PDM DMA operations within the Linux kernel. This flaw could cause a memory leak leading to potential denial of service through resource exhaustion (availability impact). The vulnerability affects multiple Linux kernel versions prior to the patched releases provided by Ubuntu. The issue is part of a broader set of Linux kernel security fixes released in May 2026. Ubuntu has issued updated kernel packages to remediate this and other vulnerabilities. Users must update their systems and reboot to apply the fixes. The update involves an ABI change requiring recompilation of third-party kernel modules.
Potential Impact
The vulnerability causes a memory leak in the AMD SoC ALSA driver, which can lead to resource exhaustion and impact system availability. There is no indication of confidentiality or integrity impact. The CVSS v3.1 base score is 5.5 (medium severity) with the vector AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H, indicating local attack vector with low complexity and low privileges required, no user interaction, unchanged scope, no confidentiality or integrity impact, and high impact on availability.
Mitigation Recommendations
A fix is available and has been released by Ubuntu in updated Linux kernel packages. Users should apply the standard system update to upgrade to the fixed kernel versions listed in the Ubuntu security notices (e.g., linux-image packages version 5.15.0-1111.118~20.04.1 or later). After updating, a system reboot is required to apply the changes. Due to an ABI change, all third-party kernel modules must be recompiled and reinstalled. If standard kernel metapackages are installed, the upgrade will handle this automatically. Check the Ubuntu security advisories USN-8278-1 and USN-8289-1 for detailed update instructions and package versions.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-23190
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:16.04:LTS","Ubuntu:18.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:20.04:LTS","Ubuntu:Pro:FIPS-updates:20.04:LTS","Ubuntu:Pro:FIPS:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:Nvidia-BlueField:22.04:LTS","Ubuntu:Pro:FIPS-preview:22.04:LTS","Ubuntu:Pro:FIPS-updates:22.04:LTS","Ubuntu:Pro:Realtime:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:Nvidia-BlueField:24.04:LTS","Ubuntu:Pro:FIPS-updates:24.04:LTS","Ubuntu:Pro:Realtime:24.04:LTS","Ubuntu:25.10"]
- Cvss Version
- 3.1
Threat ID: 6a58b4ea68715ace43dafb0d
Added to database: 07/16/2026, 10:39:38 UTC
Last enriched: 08/01/2026, 07:16:08 UTC
Last updated: 09/10/2026, 19:36:52 UTC
Views: 9
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