ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()

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CVE-2026-46146

A flaw was found in the Linux kernel's ALSA Advanced Linux Sound Architecture usb-audio subsystem. This vulnerability exists in the convertchmapv3 function, where the csdesc-wLength value is not properly validated. A malicious actor could provide a specially crafted, malformed USB audio descripto...

CVE-2026-46146

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Avoid potential endless loop in convertchmapv3 The convertchmapv3 has a loop with its increment size of csdesc-wLength, but we forgot to validate csdesc-wLength itself, which may lead to potential endless loop by...

CVE-2026-46146

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Avoid potential endless loop in convertchmapv3 The convertchmapv3 has a loop with its increment size of csdesc-wLength, but we forgot to validate csdesc-wLength itself, which may lead to potential endless loop by...

CVE-2026-46146

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Avoid potential endless loop in convertchmapv3 The convertchmapv3 has a loop with its increment size of csdesc-wLength, but we forgot to validate csdesc-wLength itself, which may lead to potential endless loop by...

PT-2026-44269

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the ALSA usb-audio component within the convert chmap v3 function. The function contains a loop that uses the cs desc-wLength variable to determine the increment size...

The vulnerability of the USB-Audio component in the Linux operating system allows a hacker to execute arbitrary code.

The vulnerability of the USB-Audio component in the Linux operating system’s kernel is related to writing beyond the allocated memory buffer in the convertchmap function. Exploiting this vulnerability allows an attacker to execute arbitrary code...