> On Fri, Aug 28, 2020 at 06:18:17AM -0700, syzbot wrote: >> Hello, >> >> syzbot found the following issue on: >> >> HEAD commit: d012a719 Linux 5.9-rc2 >> git tree: upstream >> console output: https://syzkaller.appspot.com/x/log.txt?x=15aa650e900000 >> kernel config: https://syzkaller.appspot.com/x/.config?x=891ca5711a9f1650 >> dashboard link: https://syzkaller.appspot.com/bug?extid=c92c93d1f1aaaacdb9db >> compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) >> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12ecb939900000 >> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=140a19a9900000 >> >> The issue was bisected to: >> >> commit a9ed4a6560b8562b7e2e2bed9527e88001f7b682 >> Author: Marc Zyngier <maz@xxxxxxxxxx> >> Date: Wed Aug 19 16:12:17 2020 +0000 >> >> epoll: Keep a reference on files added to the check list >> >> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16a50519900000 >> final oops: https://syzkaller.appspot.com/x/report.txt?x=15a50519900000 >> console output: https://syzkaller.appspot.com/x/log.txt?x=11a50519900000 >> >> IMPORTANT: if you fix the issue, please add the following tag to the commit: >> Reported-by: syzbot+c92c93d1f1aaaacdb9db@xxxxxxxxxxxxxxxxxxxxxxxxx >> Fixes: a9ed4a6560b8 ("epoll: Keep a reference on files added to the check list") >> >> ------------[ cut here ]------------ >> kernel BUG at fs/inode.c:1668! > > #syz set subsystem: fs The specified label "subsystem" is unknown. Please use one of the supported labels. The following labels are suported: missing-backport, no-reminders, prio: {low, normal, high}, subsystems: {.. see below ..} The list of subsystems: https://syzkaller.appspot.com/upstream/subsystems?all=true > > This has been among btrfs bugs but this is is 'fs' and probably with a > fix but I was not able to identify it among all the changes in > eventpoll.c
