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Test your applicationsUpgrade SLES:15.3 kernel-docs to version 5.3.18-150300.59.63.1 or higher.
Note: Versions mentioned in the description apply only to the upstream kernel-docs package and not the kernel-docs package as distributed by SLES.
See How to fix? for SLES:15.3 relevant fixed versions and status.
A use-after-free flaw was found in the Linux kernel’s sound subsystem in the way a user triggers concurrent calls of PCM hw_params. The hw_free ioctls or similar race condition happens inside ALSA PCM for other ioctls. This flaw allows a local user to crash or potentially escalate their privileges on the system.