Warning: Permanently added '10.128.0.43' (ECDSA) to the list of known hosts. executing program [ 39.831377] [ 39.833046] ==================================== [ 39.837778] WARNING: syz-executor496/6064 still has locks held! [ 39.843874] 4.20.0-rc3+ #251 Not tainted [ 39.847979] ------------------------------------ [ 39.852949] 1 lock held by syz-executor496/6064: [ 39.857690] #0: 000000006609abb0 (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds+0x53/0x120 [ 39.866905] [ 39.866905] stack backtrace: [ 39.871518] CPU: 0 PID: 6064 Comm: syz-executor496 Not tainted 4.20.0-rc3+ #251 [ 39.878949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.888280] Call Trace: [ 39.890849] dump_stack+0x244/0x39d [ 39.894459] ? dump_stack_print_info.cold.1+0x20/0x20 [ 39.899650] ? vprintk_func+0x85/0x181 [ 39.903542] debug_check_no_locks_held.cold.49+0x93/0x9f [ 39.908972] flush_old_exec+0x1ea2/0x2480 [ 39.913117] ? save_stack+0x43/0xd0 [ 39.916729] ? __kmalloc+0x15b/0x760 [ 39.920423] ? copy_strings_kernel+0x110/0x110 [ 39.924985] ? iov_iter_init+0xe5/0x210 [ 39.928943] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 39.934469] ? __vfs_read+0x11f/0x9b0 [ 39.938248] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.943769] ? fsnotify+0x50e/0xef0 [ 39.947377] ? fsnotify+0xef0/0xef0 [ 39.950984] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 39.956513] ? fsnotify_first_mark+0x350/0x350 [ 39.961089] ? __fsnotify_parent+0xcc/0x430 [ 39.965426] ? fsnotify+0xef0/0xef0 [ 39.969039] ? rw_verify_area+0x118/0x360 [ 39.973189] ? vfs_read+0x1ce/0x3c0 [ 39.976797] ? kernel_read+0xab/0x120 [ 39.980608] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 39.985631] ? load_elf_phdrs+0x1cd/0x260 [ 39.989760] ? writenote+0x3d0/0x3d0 [ 39.993465] ? refcount_inc_not_zero_checked+0x2f0/0x2f0 [ 39.998922] load_elf_binary+0xa39/0x5620 [ 40.003052] ? find_held_lock+0x36/0x1c0 [ 40.007099] ? notesize.isra.6+0x80/0x80 [ 40.011138] ? ima_file_mmap+0x160/0x160 [ 40.015178] ? lock_downgrade+0x900/0x900 [ 40.019312] ? kasan_check_write+0x14/0x20 [ 40.023543] search_binary_handler+0x17d/0x570 [ 40.028109] __do_execve_file.isra.33+0x1661/0x25d0 [ 40.033110] ? prepare_bprm_creds+0x120/0x120 [ 40.037587] ? usercopy_warn+0x110/0x110 [ 40.041641] ? check_preemption_disabled+0x48/0x280 [ 40.046646] ? rcu_lockdep_current_cpu_online+0x1a4/0x210 [ 40.052181] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 40.057701] ? strncpy_from_user+0x411/0x5a0 [ 40.062097] ? digsig_verify+0x1530/0x1530 [ 40.066329] ? kmem_cache_alloc+0x33a/0x730 [ 40.070638] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 40.075219] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 40.080752] __ia32_compat_sys_execveat+0xf3/0x140 [ 40.085770] do_fast_syscall_32+0x34d/0xfb2 [ 40.090092] ? do_int80_syscall_32+0x890/0x890 [ 40.094657] ? entry_SYSENTER_compat+0x68/0x7f [ 40.099223] ? trace_hardirqs_off_caller+0xbb/0x310 [ 40.104222] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.109048] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.113876] ? trace_hardirqs_on_caller+0x310/0x310 [ 40.118881] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 40.123903] ? prepare_exit_to_usermode+0x291/0x3b0 [ 40.128922] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.133749] entry_SYSENTER_compat+0x70/0x7f [ 40.138139] RIP: 0023:0xf7f20a29 [ 40.141488] 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 [ 40.160370] RSP: 002b:00000000f7f1c1ec EFLAGS: 00000296 ORIG_RAX: 0000000000000166 [ 40.168055] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000000 [ 40.175456] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000001000 [ 4