# https://syzkaller.appspot.com/bug?id=8fcf27347cbc42940c3497052c63eed41434235c
# See https://goo.gl/kgGztJ for information about syzkaller reproducers.
#{"repeat":true,"procs":1,"slowdown":1,"sandbox":"none","sandbox_arg":0,"tun":true,"netdev":true,"resetnet":true,"cgroups":true,"binfmt_misc":true,"close_fds":true,"usb":true,"vhci":true,"ieee802154":true,"sysctl":true,"tmpdir":true,"segv":true}
r0 = openat$loop_ctrl(0xffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$BTRFS_IOC_GET_SUBVOL_ROOTREF(r0, 0x4c80, &(0x7f0000002540)={0x9, [], 0x0, "2766fc6639cbb2"})