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| H A D | sch_taprio.c | diff ed8157f1ebf1ae81a8fa2653e3f20d2076fad1c9 Fri Apr 16 18:30:46 CDT 2021 Du Cheng <ducheng2@gmail.com> net: sched: tapr: prevent cycle_time == 0 in parse_taprio_schedule
There is a reproducible sequence from the userland that will trigger a WARN_ON()
condition in taprio_get_start_time, which causes kernel to panic if configured
as "panic_on_warn". Catch this condition in parse_taprio_schedule to
prevent this condition.
Reported as bug on syzkaller:
https://syzkaller.appspot.com/bug?extid=d50710fd0873a9c6b40c
Reported-by: syzbot+d50710fd0873a9c6b40c@syzkaller.appspotmail.com
Signed-off-by: Du Cheng <ducheng2@gmail.com>
Acked-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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