[Bug 262671] Kernel panics after a invalid SNDCTL_MIXERINFO ioctl
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Date: Mon, 21 Mar 2022 16:13:21 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=262671
--- Comment #9 from Ed Maste <emaste@freebsd.org> ---
(In reply to Aleksander Slomka from comment #8)
Indeed; trying successive mi.dev values here is fine:
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/soundcard.h>
#include <unistd.h>
int
main()
{
int fd;
fd = open("/dev/mixer", O_RDWR);
oss_mixerinfo mi;
for (mi.dev = 0; mi.dev < 100; mi.dev++)
ioctl(fd, SNDCTL_MIXERINFO, &mi);
return (0);
}
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