PT-2026-8216 · Linux · Linux Kernel
Syzbot
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Published
2026-01-01
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Updated
2026-04-20
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CVE-2026-23208
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a flaw within the ALSA subsystem related to USB audio handling. Specifically, an issue exists where the number of frames calculated for data URBs can exceed the allocated buffer size, leading to an out-of-bounds write condition. This occurs when a user constructs specific parameters, such as a maxpacksize of 40 for a rate of 22050 with a packets configuration resulting in a frame count exceeding the URB buffer size. The issue was identified through kernel address sanitizer (KASAN) testing.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Memory Corruption
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel