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Re: kern/54282: kernel panic when 'sysctl hw.audio0'
The following reply was made to PR kern/54282; it has been noted by GNATS.
Subject: Re: kern/54282: kernel panic when 'sysctl hw.audio0'
Date: Fri, 7 Jun 2019 02:24:45 +0000
It looks like sc->sc_pmixer can be freed in normal use.
This holds a lock, but audio_sysctl_volume dereferences
sc_pmixer without a lock.
t = sc->sc_pmixer->volume;
This sounds racy.
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