17:45:36 executing program 2:
r0 = epoll_create1(0x0)
r1 = syz_open_dev$tty20(0xc, 0x4, 0x0)
epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, r1, &(0x7f0000000000))
ioctl$TIOCSTI(r1, 0x4bfb, &(0x7f0000000040))
BUG: memory leak
unreferenced object (percpu) 0x607f1a644c18 (size 4):
  comm "syz-executor.0", pid 6972, jiffies 4295441002
  hex dump (first 4 bytes on cpu 1):
    01 00 00 00                                      ....
  backtrace (crc b8bc6765):
    pcpu_alloc_noprof+0x892/0x1140
    futex_mm_init+0x102/0x1a0
    mm_init+0x6df/0x1190
    mm_alloc+0xa0/0xd0
    alloc_bprm+0x2e3/0x6e0
    do_execveat_common+0x235/0x770
    __x64_sys_execveat+0xe4/0x130
    do_syscall_64+0xbf/0x360
    entry_SYSCALL_64_after_hwframe+0x77/0x7f

BUG: leak checking failed