====================================
WARNING: syz-executor496/6064 still has locks held!
4.20.0-rc3+ #251 Not tainted
------------------------------------
1 lock held by syz-executor496/6064:
 #0: 000000006609abb0 (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds+0x53/0x120 fs/exec.c:1405

stack backtrace:
CPU: 0 PID: 6064 Comm: syz-executor496 Not tainted 4.20.0-rc3+ #251
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
 print_held_locks_bug kernel/locking/lockdep.c:4362 [inline]
 debug_check_no_locks_held.cold.49+0x93/0x9f kernel/locking/lockdep.c:4368
 try_to_freeze include/linux/freezer.h:66 [inline]
 freezer_count include/linux/freezer.h:128 [inline]
 freezable_schedule include/linux/freezer.h:173 [inline]
 de_thread fs/exec.c:1115 [inline]
 flush_old_exec+0x1ea2/0x2480 fs/exec.c:1262
 load_elf_binary+0xa39/0x5620 fs/binfmt_elf.c:869
 search_binary_handler+0x17d/0x570 fs/exec.c:1654
 exec_binprm fs/exec.c:1696 [inline]
 __do_execve_file.isra.33+0x1661/0x25d0 fs/exec.c:1820
 do_execveat_common fs/exec.c:1867 [inline]
 compat_do_execveat fs/exec.c:1927 [inline]
 __do_compat_sys_execveat fs/exec.c:1997 [inline]
 __se_compat_sys_execveat fs/exec.c:1989 [inline]
 __ia32_compat_sys_execveat+0xf3/0x140 fs/exec.c:1989
 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline]
 do_fast_syscall_32+0x34d/0xfb2 arch/x86/entry/common.c:397
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7f20a29
Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f7f1c1ec EFLAGS: 00000296 ORIG_RAX: 0000000000000166
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000001000