# https://syzkaller.appspot.com/bug?id=bc2bc9da2825a560d04dbe2039655f62599b27d7
# See https://goo.gl/kgGztJ for information about syzkaller reproducers.
#{"repeat":true,"procs":4,"sandbox":"none","fault_call":-1,"close_fds":true}
ioctl$PERF_EVENT_IOC_MODIFY_ATTRIBUTES(0xffffffffffffffff, 0x4008240b, &(0x7f0000000080)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0x1}})
r0 = epoll_create1(0x0)
ioctl$TIOCGPGRP(r0, 0x5450, &(0x7f00000000c0)=<r1=>0x0)
r2 = getpgid(r1)
tgkill(r1, r2, 0x4)