PT-2023-9383

CVE-2023-52806

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Published

2023-10-06

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Updated

2026-07-28

Description by

CVSS 3.1
5.5
Medium
MetricsAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description The issue is related to a null pointer dereference error in the ALSA component of the Linux kernel. This error occurs when assigning a stream, particularly when a user attempts to assign a COUPLED stream, which is not blocked by AudioDSP drivers. The supplied substream instance may be a stub, leading to a null pointer dereference when code-loading. This could allow an attacker to cause a denial of service.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploitability
Exploit
Impacts
Researchers
Vendors
Affected products
Related identifiers
ALSA-2025_16880
ALT-PU-2023-7921
CLSA-2026-1782151303
OESA-2026-2673
OPENSUSE-SU-2024_2189-1
SUSE-SU-2024:2008-1
SUSE-SU-2024:2011-1
SUSE-SU-2024:2019-1
SUSE-SU-2024:2189-1
SUSE-SU-2024:2190-1
SUSE-SU-2024:2571-1
SUSE-SU-2024:2896-1
SUSE-SU-2024:2973-1
SUSE-SU-2025:20008-1
SUSE-SU-2025:20028-1
USN-6972-1
USN-6972-2
USN-6972-3
USN-6972-4
USN-6976-1
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