Re: [syzbot] [ext4?] possible deadlock in ext4_setattr

From: syzbot
Date: Sun May 14 2023 - 15:24:39 EST


syzbot has bisected this issue to:

commit a3c06ae158dd6fa8336157c31d9234689d068d02
Author: Parav Pandit <parav@xxxxxxxxxx>
Date: Tue Jan 5 10:32:03 2021 +0000

vdpa_sim_net: Add support for user supported devices

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16e372c6280000
start commit: e922ba281a8d Add linux-next specific files for 20230512
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=15e372c6280000
console output: https://syzkaller.appspot.com/x/log.txt?x=11e372c6280000
kernel config: https://syzkaller.appspot.com/x/.config?x=17a4c2d44484b62f
dashboard link: https://syzkaller.appspot.com/bug?extid=cbb68193bdb95af4340a
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=172a21c6280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16b67fc6280000

Reported-by: syzbot+cbb68193bdb95af4340a@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: a3c06ae158dd ("vdpa_sim_net: Add support for user supported devices")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection