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Test your applicationsUpgrade AlmaLinux:9 kernel-rt-debug-devel to version 0:5.14.0-611.5.1.el9_7 or higher.
This issue was patched in ALSA-2025:20518.
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 AlmaLinux.
See How to fix? for AlmaLinux:9 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
rtc: check if __rtc_read_time was successful in rtc_timer_do_work()
If the __rtc_read_time call fails,, the struct rtc_time tm; may contain uninitialized data, or an illegal date/time read from the RTC hardware.
When calling rtc_tm_to_ktime later, the result may be a very large value (possibly KTIME_MAX). If there are periodic timers in rtc->timerqueue, they will continually expire, may causing kernel softlockup.