r0 = syz_open_dev$tty20(0xc, 0x4, 0x1)
r1 = syz_open_procfs(0x0, &(0x7f0000000980)='fdinfo/3\x00')
r2 = timerfd_create(0x0, 0x0)
dup2(r2, r0)
pread64(r1, &(0x7f0000000100)=""/147, 0x93, 0x0)