r0 = syz_open_procfs(0x0, &(0x7f0000000000)='limits\x00')
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={<r1=>0xffffffffffffffff})
r2 = fcntl$dupfd(r0, 0x0, r1)
lseek(r2, 0x400000000000000, 0x0)