r4 = getpgrp(0x0)
r5 = pidfd_open(r4, 0x0)
r6 = dup(r5)
setns(r6, 0x2020000)
ioctl$sock_inet_SIOCGIFNETMASK(0xffffffffffffffff, 0x891b, &(0x7f00000004c0)={'netpci0\x00', {0x2, 0x0, @dev}})
BUG: leak checking failed