Re: [PATCH net] net/sched: sch_taprio: reset child qdiscs before freeing them
From: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Date: 2020-12-16 19:03:17
Davide Caratti [off-list ref] writes:
syzkaller shows that packets can still be dequeued while taprio_destroy()
is running. Let sch_taprio use the reset() function to cancel the advance
timer and drop all skbs from the child qdiscs.
Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler")
Link: https://syzkaller.appspot.com/bug?id=f362872379bf8f0017fb667c1ab158f2d1e764ae
Reported-by: syzbot+8971da381fb5a31f542d@syzkaller.appspotmail.com
Signed-off-by: Davide Caratti <redacted>
---Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> Cheers, -- Vinicius