==================================== kobject: 'loop1' (00000000bc083017): kobject_uevent_env WARNING: syz-executor4/29920 still has locks held! kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' 4.20.0-rc5+ #141 Not tainted ------------------------------------ 1 lock held by syz-executor4/29920: #0: 00000000cce2d202 (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds+0x53/0x120 fs/exec.c:1405 kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' stack backtrace: CPU: 1 PID: 29920 Comm: syz-executor4 Not tainted 4.20.0-rc5+ #141 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 device lo entered promiscuous mode load_elf_binary+0xa9a/0x5cf0 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] do_execveat fs/exec.c:1895 [inline] __do_sys_execveat fs/exec.c:1976 [inline] __se_sys_execveat fs/exec.c:1968 [inline] __x64_sys_execveat+0xed/0x130 fs/exec.c:1968 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fe2cf788c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000142 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000457569 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000004 RBP: 000000000072bf00 R08: 0000000000001000 R09: 0000000000000000 R10: 0000000020000500 R11: 0000000000000246 R12: 00007fe2cf7896d4 R13: 00000000004bdc9b R14: 00000000004cd1d8 R15: 00000000ffffffff device lo left promiscuous mode kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (000000001f03346d): kobject_uevent_env kobject: 'loop3' (000000001f03346d): fill_kobj_path: path = '/devices/virtual/block/loop3' device lo entered promiscuous mode kobject: 'loop5' (0000000039472d58): kobject_uevent_env device lo left promiscuous mode kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env device lo entered promiscuous mode device lo left promiscuous mode kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' device lo entered promiscuous mode device lo left promiscuous mode kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (000000001f03346d): kobject_uevent_env kobject: 'loop3' (000000001f03346d): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000bc083017): kobject_uevent_env device lo entered promiscuous mode kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' device lo left promiscuous mode kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' device lo entered promiscuous mode device lo left promiscuous mode kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (000000001f03346d): kobject_uevent_env kobject: 'loop3' (000000001f03346d): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' device lo entered promiscuous mode kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' device lo left promiscuous mode kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (000000001f03346d): kobject_uevent_env device lo entered promiscuous mode kobject: 'loop3' (000000001f03346d): fill_kobj_path: path = '/devices/virtual/block/loop3' device lo left promiscuous mode kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' device lo entered promiscuous mode kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' device lo left promiscuous mode kobject: 'loop3' (000000001f03346d): kobject_uevent_env device lo entered promiscuous mode kobject: 'loop3' (000000001f03346d): fill_kobj_path: path = '/devices/virtual/block/loop3' device lo left promiscuous mode kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (000000001f03346d): kobject_uevent_env kobject: 'loop3' (000000001f03346d): fill_kobj_path: path = '/devices/virtual/block/loop3' device lo entered promiscuous mode kobject: 'loop5' (0000000039472d58): kobject_uevent_env device lo left promiscuous mode kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'input13' (000000002b6d6f86): kobject_cleanup, parent (null) kobject: 'input13' (000000002b6d6f86): calling ktype release kobject: 'input13': free name kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' device lo entered promiscuous mode device lo left promiscuous mode kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (000000001f03346d): kobject_uevent_env kobject: 'loop3' (000000001f03346d): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (000000001f03346d): kobject_uevent_env kobject: 'loop3' (000000001f03346d): fill_kobj_path: path = '/devices/virtual/block/loop3' device lo entered promiscuous mode kobject: 'loop5' (0000000039472d58): kobject_uevent_env device lo left promiscuous mode kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' device lo entered promiscuous mode device lo left promiscuous mode kobject: 'loop3' (000000001f03346d): kobject_uevent_env kobject: 'loop3' (000000001f03346d): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' device lo entered promiscuous mode kobject: 'loop1' (00000000bc083017): kobject_uevent_env device lo left promiscuous mode kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (000000001f03346d): kobject_uevent_env kobject: 'loop3' (000000001f03346d): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' capability: warning: `syz-executor4' uses deprecated v2 capabilities in a way that may be insecure device lo entered promiscuous mode kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' device lo left promiscuous mode kobject: 'loop3' (000000001f03346d): kobject_uevent_env kobject: 'loop3' (000000001f03346d): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000000c4ead25): kobject_uevent_env kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (000000001f03346d): kobject_uevent_env kobject: 'loop3' (000000001f03346d): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'kvm' (00000000404b1ef5): kobject_uevent_env kobject: 'kvm' (00000000404b1ef5): fill_kobj_path: path = '/devices/virtual/misc/kvm' device lo entered promiscuous mode kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' device lo left promiscuous mode kobject: 'kvm' (00000000404b1ef5): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'kvm' (00000000404b1ef5): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (00000000404b1ef5): kobject_uevent_env kobject: 'kvm' (00000000404b1ef5): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'kvm' (00000000404b1ef5): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (00000000404b1ef5): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' device lo entered promiscuous mode kobject: 'loop3' (000000001f03346d): kobject_uevent_env device lo left promiscuous mode kobject: 'loop3' (000000001f03346d): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000bc083017): kobject_uevent_env kobject: 'loop1' (00000000bc083017): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (00000000c5e1f70c): kobject_uevent_env kobject: 'loop4' (00000000c5e1f70c): fill_kobj_path: path = '/devices/virtual/block/loop4' device lo entered promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode device lo left promiscuous mode kobject: 'loop2' (000000000c4ead25): kobject_uevent_env device lo entered promiscuous mode kobject: 'loop2' (000000000c4ead25): fill_kobj_path: path = '/devices/virtual/block/loop2' device lo left promiscuous mode kobject: 'loop5' (0000000039472d58): kobject_uevent_env kobject: 'loop5' (0000000039472d58): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (00000000bc083017): kobject_uevent_env