CVE-2026-53291

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the ALSA hda/conexant component where the cx probe() function fails to verify the return value of snd hda jack detect enable callback(). This function returns a pointer that must be validated using IS ERR() to detect failures, such as memory allocation errors. If the registration fails and the error is ignored, the driver continues the probing process without a registered jack detection callback, which can result in a kernel crash when the driver subsequently attempts to handle jack events or access an uninitialized structure.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.