BUG: memory leak
unreferenced object 0xffff888018623440 (size 368):
  comm "syz-executor.5", pid 4351, jiffies 4294894365 (age 21.241s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    2b 00 00 00 00 00 00 00 88 80 31 06 00 00 00 00  +.........1.....
  backtrace:
    [<0000000069536a55>] kmem_cache_zalloc include/linux/slab.h:705 [inline]
    [<0000000069536a55>] taskstats_tgid_alloc kernel/taskstats.c:561 [inline]
    [<0000000069536a55>] taskstats_exit+0x5c6/0xac0 kernel/taskstats.c:600
    [<000000003a92d711>] do_exit+0x8b1/0x2840 kernel/exit.c:778
    [<000000001fdaa479>] do_group_exit+0x128/0x330 kernel/exit.c:932
    [<00000000321c9671>] __do_sys_exit_group kernel/exit.c:943 [inline]
    [<00000000321c9671>] __se_sys_exit_group kernel/exit.c:941 [inline]
    [<00000000321c9671>] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:941
    [<00000000ce7fce69>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<00000000ce7fce69>] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
    [<00000000fd9e9d1c>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: leak checking failed