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Test your applicationsUpgrade RHEL:9
kernel-rt-debug-devel
to version 0:5.14.0-162.6.1.rt21.168.el9_1 or higher.
This issue was patched in RHSA-2022:7933
.
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-devel
package and not the kernel-rt-debug-devel
package as distributed by RHEL
.
See How to fix?
for RHEL:9
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.