RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000004bce27 RBP: 000000000073bf00 R08: 0000000000000000 R09: 00000000fbad8001 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf11ff06d4 R13: 00000000004c6757 R14: 00000000004dbd08 R15: 0000000000000003 ====================================================== WARNING: possible circular locking dependency detected 5.0.0-rc8 #88 Not tainted ------------------------------------------------------ syz-executor.0/18851 is trying to acquire lock: 000000008c69bf19 (&sb->s_type->i_mutex_key#12){+.+.}, at: inode_lock include/linux/fs.h:757 [inline] 000000008c69bf19 (&sb->s_type->i_mutex_key#12){+.+.}, at: shmem_fallocate+0x15a/0xc60 mm/shmem.c:2633 but task is already holding lock: 00000000fa16793b (ashmem_mutex){+.+.}, at: ashmem_shrink_scan+0x66/0x4f0 drivers/staging/android/ashmem.c:448 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (ashmem_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0xf7/0x1310 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 ashmem_mmap+0x55/0x520 drivers/staging/android/ashmem.c:361 call_mmap include/linux/fs.h:1868 [inline] mmap_region+0xc37/0x1760 mm/mmap.c:1786 do_mmap+0x8e2/0x1080 mm/mmap.c:1559 do_mmap_pgoff include/linux/mm.h:2379 [inline] vm_mmap_pgoff+0x1c5/0x230 mm/util.c:350 ksys_mmap_pgoff+0x4aa/0x630 mm/mmap.c:1609 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:91 [inline] __x64_sys_mmap+0xe9/0x1b0 arch/x86/kernel/sys_x86_64.c:91 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (&mm->mmap_sem){++++}: down_read+0x3b/0x90 kernel/locking/rwsem.c:24 do_user_addr_fault arch/x86/mm/fault.c:1426 [inline] __do_page_fault+0x9c2/0xd60 arch/x86/mm/fault.c:1541 do_page_fault+0x71/0x581 arch/x86/mm/fault.c:1572 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143 fault_in_pages_readable include/linux/pagemap.h:603 [inline] iov_iter_fault_in_readable+0x1ba/0x450 lib/iov_iter.c:425 generic_perform_write+0x195/0x530 mm/filemap.c:3198 __generic_file_write_iter+0x25e/0x630 mm/filemap.c:3333 generic_file_write_iter+0x360/0x610 mm/filemap.c:3361 call_write_iter include/linux/fs.h:1863 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x613/0x8e0 fs/read_write.c:487 vfs_write+0x20c/0x580 fs/read_write.c:549 ksys_write+0xea/0x1f0 fs/read_write.c:598 kobject: 'vlan0' (000000006f1e10ed): kobject_uevent_env __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 kobject: 'vlan0' (000000006f1e10ed): kobject_uevent_env: attempted to send uevent without kset! do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&sb->s_type->i_mutex_key#12){+.+.}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 kobject: 'mesh' (000000008a58d404): kobject_cleanup, parent (null) down_write+0x38/0x90 kernel/locking/rwsem.c:70 inode_lock include/linux/fs.h:757 [inline] shmem_fallocate+0x15a/0xc60 mm/shmem.c:2633 ashmem_shrink_scan drivers/staging/android/ashmem.c:455 [inline] ashmem_shrink_scan+0x1d7/0x4f0 drivers/staging/android/ashmem.c:439 ashmem_ioctl+0x2f0/0x11a0 drivers/staging/android/ashmem.c:797 kobject: 'mesh' (000000008a58d404): calling ktype release vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: &sb->s_type->i_mutex_key#12 --> &mm->mmap_sem --> ashmem_mutex kobject: (000000008a58d404): dynamic_kobj_release Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(ashmem_mutex); lock(&mm->mmap_sem); lock(ashmem_mutex); lock(&sb->s_type->i_mutex_key#12); *** DEADLOCK *** 1 lock held by syz-executor.0/18851: #0: 00000000fa16793b (ashmem_mutex){+.+.}, at: ashmem_shrink_scan+0x66/0x4f0 drivers/staging/android/ashmem.c:448 stack backtrace: CPU: 1 PID: 18851 Comm: syz-executor.0 Not tainted 5.0.0-rc8 #88 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'mesh': free name Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1224 check_prev_add kernel/locking/lockdep.c:1866 [inline] check_prevs_add kernel/locking/lockdep.c:1979 [inline] validate_chain kernel/locking/lockdep.c:2350 [inline] __lock_acquire+0x2f00/0x4700 kernel/locking/lockdep.c:3338 kobject: 'vlan0' (000000006f1e10ed): kobject_cleanup, parent (null) lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 kobject: 'vlan0' (000000006f1e10ed): calling ktype release down_write+0x38/0x90 kernel/locking/rwsem.c:70 inode_lock include/linux/fs.h:757 [inline] shmem_fallocate+0x15a/0xc60 mm/shmem.c:2633 kobject: (000000006f1e10ed): dynamic_kobj_release kobject: 'vlan0': free name ashmem_shrink_scan drivers/staging/android/ashmem.c:455 [inline] ashmem_shrink_scan+0x1d7/0x4f0 drivers/staging/android/ashmem.c:439 ashmem_ioctl+0x2f0/0x11a0 drivers/staging/android/ashmem.c:797 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e29 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f2463532c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e29 RDX: 0000000000000000 RSI: 000000000000770a RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f24635336d4 R13: 00000000004bf0a2 R14: 00000000004d0a40 R15: 00000000ffffffff kobject: '0:47' (0000000098d9ac20): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:47' (0000000098d9ac20): kobject_uevent_env kobject: '0:47' (0000000098d9ac20): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '0:46' (000000005ee94b53): kobject_add_internal: parent: 'bdi', set: 'devices' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: '0:49' (00000000b232d9b4): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:46' (000000005ee94b53): kobject_uevent_env kobject: '0:47' (0000000098d9ac20): kobject_uevent_env kobject: 'loop0' (00000000e97107a8): kobject_uevent_env kobject: '0:47' (0000000098d9ac20): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: '0:49' (00000000b232d9b4): kobject_uevent_env CPU: 1 PID: 18864 Comm: syz-executor.4 Not tainted 5.0.0-rc8 #88 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: '0:49' (00000000b232d9b4): fill_kobj_path: path = '/devices/virtual/bdi/0:49' Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1604 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3374 [inline] kmem_cache_alloc+0x2b2/0x6f0 mm/slab.c:3548 getname_flags fs/namei.c:140 [inline] getname_flags+0xd6/0x5b0 fs/namei.c:129 kobject: '0:46' (000000005ee94b53): fill_kobj_path: path = '/devices/virtual/bdi/0:46' getname+0x1a/0x20 fs/namei.c:211 do_sys_open+0x2c9/0x5d0 fs/open.c:1057 kobject: 'loop0' (00000000e97107a8): fill_kobj_path: path = '/devices/virtual/block/loop0' __do_sys_open fs/open.c:1081 [inline] __se_sys_open fs/open.c:1076 [inline] __x64_sys_open+0x7e/0xc0 fs/open.c:1076 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe kobject: 'loop1' (00000000463a1cc1): kobject_uevent_env RIP: 0033:0x411f11 Code: 75 14 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 b4 17 00 00 c3 48 83 ec 08 e8 2a fa ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 73 fa ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007fcf11fefa80 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000411f11 RDX: 00007fcf11fefafa RSI: 0000000000000002 RDI: 00007fcf11fefaf0 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000293 R12: 0000000000000004 R13: 0000000000000000 R14: 00000000004dbd08 R15: 0000000000000003 kobject: '0:47' (0000000098d9ac20): kobject_cleanup, parent (null) kobject: 'loop1' (00000000463a1cc1): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: '0:47' (0000000098d9ac20): calling ktype release kobject: '0:46' (000000005ee94b53): kobject_uevent_env kobject: '0:47': free name kobject: '0:46' (000000005ee94b53): fill_kobj_path: path = '/devices/virtual/bdi/0:46' kobject: '0:46' (000000005ee94b53): kobject_cleanup, parent (null) kobject: 'loop1' (00000000463a1cc1): kobject_uevent_env kobject: 'loop1' (00000000463a1cc1): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (0000000015a5ca95): kobject_uevent_env kobject: 'loop3' (0000000015a5ca95): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '0:46' (000000005ee94b53): calling ktype release kobject: 'loop0' (00000000e97107a8): kobject_uevent_env kobject: '0:46': free name kobject: '0:47' (000000002981dea6): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop0' (00000000e97107a8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: '0:47' (000000002981dea6): kobject_uevent_env kobject: '0:47' (000000002981dea6): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (00000000463a1cc1): kobject_uevent_env kobject: 'loop1' (00000000463a1cc1): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (000000007c80e940): kobject_uevent_env kobject: 'loop2' (000000007c80e940): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '0:47' (000000002981dea6): kobject_uevent_env kobject: 'batman_adv' (0000000050c9dc73): kobject_uevent_env kobject: '0:47' (000000002981dea6): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: 'batman_adv' (0000000050c9dc73): kobject_uevent_env: filter function caused the event to drop! kobject: '0:47' (000000002981dea6): kobject_cleanup, parent (null) kobject: 'batman_adv' (0000000050c9dc73): kobject_cleanup, parent (null) kobject: 'batman_adv' (0000000050c9dc73): calling ktype release kobject: '0:47' (000000002981dea6): calling ktype release kobject: (0000000050c9dc73): dynamic_kobj_release kobject: '0:47': free name kobject: 'batman_adv': free name kobject: '0:55' (00000000140ca7e2): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:55' (00000000140ca7e2): kobject_uevent_env kobject: '0:55' (00000000140ca7e2): fill_kobj_path: path = '/devices/virtual/bdi/0:55' kobject: 'loop3' (0000000015a5ca95): kobject_uevent_env kobject: 'rx-0' (00000000777b36c0): kobject_cleanup, parent 00000000880f16cc kobject: 'loop3' (0000000015a5ca95): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'rx-0' (00000000777b36c0): auto cleanup 'remove' event kobject: '0:55' (00000000140ca7e2): kobject_uevent_env kobject: 'rx-0' (00000000777b36c0): kobject_uevent_env kobject: '0:55' (00000000140ca7e2): fill_kobj_path: path = '/devices/virtual/bdi/0:55' kobject: 'rx-0' (00000000777b36c0): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: '0:55' (00000000140ca7e2): kobject_cleanup, parent (null) kobject: 'rx-0' (00000000777b36c0): auto cleanup kobject_del kobject: '0:55' (00000000140ca7e2): calling ktype release kobject: 'rx-0' (00000000777b36c0): calling ktype release kobject: '0:55': free name kobject: 'rx-0': free name kobject: 'tx-0' (000000005fdfefa4): kobject_cleanup, parent 00000000880f16cc kobject: 'tx-0' (000000005fdfefa4): auto cleanup 'remove' event kobject: 'tx-0' (000000005fdfefa4): kobject_uevent_env kobject: 'tx-0' (000000005fdfefa4): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: '0:49' (00000000b232d9b4): kobject_uevent_env kobject: 'tx-0' (000000005fdfefa4): auto cleanup kobject_del kobject: '0:49' (00000000b232d9b4): fill_kobj_path: path = '/devices/virtual/bdi/0:49' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: '0:49' (00000000b232d9b4): kobject_cleanup, parent (null) kobject: 'tx-0' (000000005fdfefa4): calling ktype release kobject: 'tx-0': free name CPU: 0 PID: 18896 Comm: syz-executor.4 Not tainted 5.0.0-rc8 #88 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: kobject: '0:46' (00000000b7e495ef): kobject_add_internal: parent: 'bdi', set: 'devices' __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1604 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3374 [inline] kmem_cache_alloc+0x2b2/0x6f0 mm/slab.c:3548 kmem_cache_zalloc include/linux/slab.h:730 [inline] __alloc_file+0x27/0x300 fs/file_table.c:100 alloc_empty_file+0x72/0x170 fs/file_table.c:150 path_openat+0xef/0x4690 fs/namei.c:3523 kobject: '0:49' (00000000b232d9b4): calling ktype release do_filp_open+0x1a1/0x280 fs/namei.c:3564 kobject: '0:49': free name kobject: '0:46' (00000000b7e495ef): kobject_uevent_env do_sys_open+0x3fe/0x5d0 fs/open.c:1063 __do_sys_open fs/open.c:1081 [inline] __se_sys_open fs/open.c:1076 [inline] __x64_sys_open+0x7e/0xc0 fs/open.c:1076 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x411f11 Code: 75 14 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 b4 17 00 00 c3 48 83 ec 08 e8 2a fa ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 73 fa ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007fcf11fefa80 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000411f11 RDX: 00007fcf11fefafa RSI: 0000000000000002 RDI: 00007fcf11fefaf0 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000293 R12: 0000000000000004 R13: 0000000000000000 R14: 00000000004dbd08 R15: 0000000000000003 kobject: 'queues' (00000000880f16cc): kobject_cleanup, parent (null) kobject: '0:46' (00000000b7e495ef): fill_kobj_path: path = '/devices/virtual/bdi/0:46' kobject: 'queues' (00000000880f16cc): calling ktype release kobject: 'loop5' (000000003cbebe53): kobject_uevent_env kobject: 'queues' (00000000880f16cc): kset_release kobject: 'loop5' (000000003cbebe53): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'queues': free name kobject: '0:47' (00000000f54cee02): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'hsr0' (00000000e44116eb): kobject_uevent_env kobject: '0:47' (00000000f54cee02): kobject_uevent_env kobject: 'hsr0' (00000000e44116eb): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: 'batman_adv' (00000000745483e7): kobject_uevent_env kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'batman_adv' (00000000745483e7): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop1' (00000000463a1cc1): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop1' (00000000463a1cc1): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'batman_adv' (00000000745483e7): kobject_cleanup, parent (null) kobject: '0:47' (00000000f54cee02): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: 'batman_adv' (00000000745483e7): calling ktype release kobject: 'loop3' (0000000015a5ca95): kobject_uevent_env CPU: 0 PID: 18908 Comm: syz-executor.4 Not tainted 5.0.0-rc8 #88 kobject: 'loop3' (0000000015a5ca95): fill_kobj_path: path = '/devices/virtual/block/loop3' 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+0x172/0x1f0 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 kobject: (00000000745483e7): dynamic_kobj_release should_failslab+0x9/0x14 mm/slab_common.c:1604 kobject: 'batman_adv': free name slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3374 [inline] kmem_cache_alloc_trace+0x2d1/0x760 mm/slab.c:3613 kmalloc include/linux/slab.h:545 [inline] __kthread_create_on_node+0xf2/0x460 kernel/kthread.c:291 kthread_create_on_node+0xbb/0xf0 kernel/kthread.c:379 loop_prepare_queue drivers/block/loop.c:895 [inline] loop_set_fd drivers/block/loop.c:945 [inline] lo_ioctl+0xafb/0x20d0 drivers/block/loop.c:1528 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xee8/0x1c40 block/ioctl.c:605 kobject: '0:55' (000000009297919d): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:55' (000000009297919d): kobject_uevent_env kobject: '0:55' (000000009297919d): fill_kobj_path: path = '/devices/virtual/bdi/0:55' block_ioctl+0xee/0x130 fs/block_dev.c:1914 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457c97 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fcf11fefa88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000457c97 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000000 R14: 00000000004dbd08 R15: 0000000000000003 device hsr_slave_1 left promiscuous mode kobject: 'loop0' (00000000e97107a8): kobject_uevent_env kobject: '0:47' (00000000f54cee02): kobject_uevent_env kobject: 'loop0' (00000000e97107a8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: '0:47' (00000000f54cee02): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: '0:47' (00000000f54cee02): kobject_cleanup, parent (null) kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'rx-0' (000000000e9e95da): kobject_cleanup, parent 0000000006ed8bfb kobject: 'loop3' (0000000015a5ca95): kobject_uevent_env kobject: '0:47' (00000000f54cee02): calling ktype release kobject: 'rx-0' (000000000e9e95da): auto cleanup 'remove' event kobject: 'loop3' (0000000015a5ca95): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '0:47': free name kobject: 'rx-0' (000000000e9e95da): kobject_uevent_env kobject: '0:46' (00000000b7e495ef): kobject_uevent_env kobject: 'rx-0' (000000000e9e95da): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop1' (00000000463a1cc1): kobject_uevent_env kobject: '0:46' (00000000b7e495ef): fill_kobj_path: path = '/devices/virtual/bdi/0:46' kobject: 'loop1' (00000000463a1cc1): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: '0:46' (00000000b7e495ef): kobject_cleanup, parent (null) kobject: 'rx-0' (000000000e9e95da): auto cleanup kobject_del kobject: '0:46' (00000000b7e495ef): calling ktype release kobject: 'rx-0' (000000000e9e95da): calling ktype release kobject: '0:46': free name kobject: 'rx-0': free name kobject: 'tx-0' (00000000617eb99b): kobject_cleanup, parent 0000000006ed8bfb kobject: 'tx-0' (00000000617eb99b): auto cleanup 'remove' event kobject: 'tx-0' (00000000617eb99b): kobject_uevent_env kobject: 'loop0' (00000000e97107a8): kobject_uevent_env kobject: 'tx-0' (00000000617eb99b): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (00000000617eb99b): auto cleanup kobject_del kobject: 'tx-0' (00000000617eb99b): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (0000000006ed8bfb): kobject_cleanup, parent (null) kobject: 'queues' (0000000006ed8bfb): calling ktype release kobject: 'queues' (0000000006ed8bfb): kset_release kobject: 'queues': free name kobject: 'hsr_slave_1' (00000000fd0f75e9): kobject_uevent_env kobject: 'loop0' (00000000e97107a8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'hsr_slave_1' (00000000fd0f75e9): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop2' (000000007c80e940): kobject_uevent_env kobject: 'batman_adv' (00000000d0971898): kobject_uevent_env kobject: 'loop2' (000000007c80e940): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'batman_adv' (00000000d0971898): kobject_uevent_env: filter function caused the event to drop! kobject: 'batman_adv' (00000000d0971898): kobject_cleanup, parent (null) kobject: 'batman_adv' (00000000d0971898): calling ktype release kobject: '0:49' (00000000fcf3ad19): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: (00000000d0971898): dynamic_kobj_release kobject: '0:49' (00000000fcf3ad19): kobject_uevent_env kobject: '0:49' (00000000fcf3ad19): fill_kobj_path: path = '/devices/virtual/bdi/0:49' kobject: 'batman_adv': free name kobject: '0:57' (000000004a673e59): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'rx-0' (000000006b344147): kobject_cleanup, parent 00000000c7860a69 kobject: '0:57' (000000004a673e59): kobject_uevent_env kobject: '0:49' (00000000fcf3ad19): kobject_uevent_env kobject: '0:57' (000000004a673e59): fill_kobj_path: path = '/devices/virtual/bdi/0:57' kobject: 'rx-0' (000000006b344147): auto cleanup 'remove' event kobject: '0:49' (00000000fcf3ad19): fill_kobj_path: path = '/devices/virtual/bdi/0:49' kobject: 'rx-0' (000000006b344147): kobject_uevent_env kobject: 'rx-0' (000000006b344147): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (000000006b344147): auto cleanup kobject_del kobject: '0:49' (00000000fcf3ad19): kobject_cleanup, parent (null) kobject: 'rx-0' (000000006b344147): calling ktype release kobject: '0:47' (0000000088eb647d): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'rx-0': free name kobject: '0:47' (0000000088eb647d): kobject_uevent_env kobject: 'tx-0' (00000000a8ec1df9): kobject_cleanup, parent 00000000c7860a69 kobject: '0:49' (00000000fcf3ad19): calling ktype release kobject: '0:49': free name kobject: 'tx-0' (00000000a8ec1df9): auto cleanup 'remove' event kobject: '0:47' (0000000088eb647d): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: 'tx-0' (00000000a8ec1df9): kobject_uevent_env kobject: '0:47' (0000000088eb647d): kobject_uevent_env kobject: 'tx-0' (00000000a8ec1df9): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: '0:47' (0000000088eb647d): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: '0:47' (0000000088eb647d): kobject_cleanup, parent (null) kobject: 'tx-0' (00000000a8ec1df9): auto cleanup kobject_del kobject: '0:47' (0000000088eb647d): calling ktype release kobject: 'tx-0' (00000000a8ec1df9): calling ktype release kobject: '0:47': free name kobject: '0:55' (000000009297919d): kobject_uevent_env kobject: 'tx-0': free name kobject: '0:55' (000000009297919d): fill_kobj_path: path = '/devices/virtual/bdi/0:55' kobject: 'queues' (00000000c7860a69): kobject_cleanup, parent (null) FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: '0:55' (000000009297919d): kobject_cleanup, parent (null) kobject: '0:57' (000000004a673e59): kobject_uevent_env kobject: '0:55' (000000009297919d): calling ktype release kobject: '0:57' (000000004a673e59): fill_kobj_path: path = '/devices/virtual/bdi/0:57' CPU: 0 PID: 18936 Comm: syz-executor.4 Not tainted 5.0.0-rc8 #88 kobject: 'queues' (00000000c7860a69): calling ktype release 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+0x172/0x1f0 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 kobject: 'queues' (00000000c7860a69): kset_release __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1604 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3374 [inline] kmem_cache_alloc_trace+0x2d1/0x760 mm/slab.c:3613 kobject: 'queues': free name kmalloc include/linux/slab.h:545 [inline] __kthread_create_on_node+0xf2/0x460 kernel/kthread.c:291 kobject: '0:57' (000000004a673e59): kobject_cleanup, parent (null) kthread_create_on_node+0xbb/0xf0 kernel/kthread.c:379 loop_prepare_queue drivers/block/loop.c:895 [inline] loop_set_fd drivers/block/loop.c:945 [inline] lo_ioctl+0xafb/0x20d0 drivers/block/loop.c:1528 kobject: 'veth1_to_hsr' (00000000bb7a5d31): kobject_uevent_env __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xee8/0x1c40 block/ioctl.c:605 kobject: '0:57' (000000004a673e59): calling ktype release kobject: '0:57': free name block_ioctl+0xee/0x130 fs/block_dev.c:1914 kobject: 'veth1_to_hsr' (00000000bb7a5d31): kobject_uevent_env: uevent_suppress caused the event to drop! vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696 kobject: 'batman_adv' (000000004ea596a0): kobject_uevent_env kobject: 'batman_adv' (000000004ea596a0): kobject_uevent_env: filter function caused the event to drop! ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 kobject: 'batman_adv' (000000004ea596a0): kobject_cleanup, parent (null) __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457c97 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 kobject: 'batman_adv' (000000004ea596a0): calling ktype release RSP: 002b:00007fcf11fefa88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 kobject: (000000004ea596a0): dynamic_kobj_release RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000457c97 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000000 R14: 00000000004dbd08 R15: 0000000000000003 kobject: '0:55': free name kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: 'batman_adv': free name kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' device hsr_slave_0 left promiscuous mode kobject: 'loop2' (000000007c80e940): kobject_uevent_env kobject: 'loop2' (000000007c80e940): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'rx-0' (000000007227f5d3): kobject_cleanup, parent 00000000767f0824 kobject: 'rx-0' (000000007227f5d3): auto cleanup 'remove' event FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop5' (000000003cbebe53): kobject_uevent_env kobject: 'rx-0' (000000007227f5d3): kobject_uevent_env kobject: 'loop5' (000000003cbebe53): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rx-0' (000000007227f5d3): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: '0:46' (0000000034e4b10c): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop0' (00000000e97107a8): kobject_uevent_env CPU: 0 PID: 18947 Comm: syz-executor.4 Not tainted 5.0.0-rc8 #88 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'rx-0' (000000007227f5d3): auto cleanup kobject_del Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 kobject: 'rx-0' (000000007227f5d3): calling ktype release __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1604 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3374 [inline] kmem_cache_alloc_trace+0x2d1/0x760 mm/slab.c:3613 kmalloc include/linux/slab.h:545 [inline] __kthread_create_on_node+0xf2/0x460 kernel/kthread.c:291 kobject: 'rx-0': free name kthread_create_on_node+0xbb/0xf0 kernel/kthread.c:379 loop_prepare_queue drivers/block/loop.c:895 [inline] loop_set_fd drivers/block/loop.c:945 [inline] lo_ioctl+0xafb/0x20d0 drivers/block/loop.c:1528 kobject: 'loop0' (00000000e97107a8): fill_kobj_path: path = '/devices/virtual/block/loop0' __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xee8/0x1c40 block/ioctl.c:605 kobject: 'loop1' (00000000463a1cc1): kobject_uevent_env block_ioctl+0xee/0x130 fs/block_dev.c:1914 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696 kobject: 'tx-0' (0000000018d6213d): kobject_cleanup, parent 00000000767f0824 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 kobject: 'loop1' (00000000463a1cc1): fill_kobj_path: path = '/devices/virtual/block/loop1' entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457c97 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fcf11fefa88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000457c97 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000000 R14: 00000000004dbd08 R15: 0000000000000003 kobject: '0:47' (000000006b8323a4): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'tx-0' (0000000018d6213d): auto cleanup 'remove' event kobject: '0:47' (000000006b8323a4): kobject_uevent_env kobject: 'loop3' (0000000015a5ca95): kobject_uevent_env kobject: '0:46' (0000000034e4b10c): kobject_uevent_env kobject: 'loop3' (0000000015a5ca95): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '0:47' (000000006b8323a4): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: 'tx-0' (0000000018d6213d): kobject_uevent_env kobject: '0:46' (0000000034e4b10c): fill_kobj_path: path = '/devices/virtual/bdi/0:46' kobject: 'tx-0' (0000000018d6213d): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: '0:55' (00000000367d4205): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'tx-0' (0000000018d6213d): auto cleanup kobject_del kobject: '0:55' (00000000367d4205): kobject_uevent_env kobject: 'tx-0' (0000000018d6213d): calling ktype release kobject: '0:55' (00000000367d4205): fill_kobj_path: path = '/devices/virtual/bdi/0:55' kobject: 'tx-0': free name kobject: 'loop1' (00000000463a1cc1): kobject_uevent_env kobject: 'queues' (00000000767f0824): kobject_cleanup, parent (null) kobject: 'loop1' (00000000463a1cc1): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'queues' (00000000767f0824): calling ktype release kobject: 'loop3' (0000000015a5ca95): kobject_uevent_env kobject: 'queues' (00000000767f0824): kset_release kobject: 'loop3' (0000000015a5ca95): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'queues': free name kobject: '0:55' (00000000367d4205): kobject_uevent_env kobject: 'hsr_slave_0' (00000000a4a2c3a5): kobject_uevent_env kobject: '0:55' (00000000367d4205): fill_kobj_path: path = '/devices/virtual/bdi/0:55' kobject: 'hsr_slave_0' (00000000a4a2c3a5): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'batman_adv' (00000000b5f1f85b): kobject_uevent_env kobject: 'batman_adv' (00000000b5f1f85b): kobject_uevent_env: filter function caused the event to drop! kobject: 'batman_adv' (00000000b5f1f85b): kobject_cleanup, parent (null) kobject: '0:55' (00000000367d4205): kobject_cleanup, parent (null) kobject: 'batman_adv' (00000000b5f1f85b): calling ktype release kobject: '0:55' (00000000367d4205): calling ktype release kobject: (00000000b5f1f85b): dynamic_kobj_release kobject: '0:55': free name kobject: 'batman_adv': free name kobject: 'rx-0' (00000000963dffd1): kobject_cleanup, parent 000000001013bec8 kobject: 'rx-0' (00000000963dffd1): auto cleanup 'remove' event kobject: '0:47' (000000006b8323a4): kobject_uevent_env kobject: 'rx-0' (00000000963dffd1): kobject_uevent_env kobject: '0:47' (000000006b8323a4): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: 'rx-0' (00000000963dffd1): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: '0:47' (000000006b8323a4): kobject_cleanup, parent (null) kobject: 'rx-0' (00000000963dffd1): auto cleanup kobject_del kobject: '0:47' (000000006b8323a4): calling ktype release kobject: 'rx-0' (00000000963dffd1): calling ktype release kobject: '0:47': free name kobject: 'rx-0': free name kobject: 'tx-0' (00000000b0a17ae9): kobject_cleanup, parent 000000001013bec8 kobject: 'tx-0' (00000000b0a17ae9): auto cleanup 'remove' event kobject: 'tx-0' (00000000b0a17ae9): kobject_uevent_env kobject: 'tx-0' (00000000b0a17ae9): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (00000000b0a17ae9): auto cleanup kobject_del kobject: '0:49' (0000000072341467): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'tx-0' (00000000b0a17ae9): calling ktype release kobject: '0:49' (0000000072341467): kobject_uevent_env kobject: 'tx-0': free name kobject: '0:49' (0000000072341467): fill_kobj_path: path = '/devices/virtual/bdi/0:49' kobject: 'queues' (000000001013bec8): kobject_cleanup, parent (null) kobject: 'queues' (000000001013bec8): calling ktype release kobject: 'queues' (000000001013bec8): kset_release kobject: 'queues': free name kobject: 'veth0_to_hsr' (0000000042401c0f): kobject_uevent_env kobject: 'veth0_to_hsr' (0000000042401c0f): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop2' (000000007c80e940): kobject_uevent_env team0 (unregistering): Port device team_slave_1 removed kobject: 'loop2' (000000007c80e940): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'batman_adv' (000000001a204aca): kobject_uevent_env kobject: '0:49' (0000000072341467): kobject_uevent_env kobject: 'batman_adv' (000000001a204aca): kobject_uevent_env: filter function caused the event to drop! kobject: 'batman_adv' (000000001a204aca): kobject_cleanup, parent (null) kobject: 'batman_adv' (000000001a204aca): calling ktype release kobject: (000000001a204aca): dynamic_kobj_release kobject: 'batman_adv': free name kobject: 'rx-0' (000000002e625be0): kobject_cleanup, parent 0000000001d12029 kobject: '0:49' (0000000072341467): fill_kobj_path: path = '/devices/virtual/bdi/0:49' kobject: 'rx-0' (000000002e625be0): auto cleanup 'remove' event kobject: '0:49' (0000000072341467): kobject_cleanup, parent (null) kobject: 'rx-0' (000000002e625be0): kobject_uevent_env kobject: '0:49' (0000000072341467): calling ktype release kobject: 'rx-0' (000000002e625be0): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: '0:49': free name kobject: 'rx-0' (000000002e625be0): auto cleanup kobject_del kobject: '0:46' (0000000034e4b10c): kobject_uevent_env kobject: '0:46' (0000000034e4b10c): fill_kobj_path: path = '/devices/virtual/bdi/0:46' kobject: 'rx-0' (000000002e625be0): calling ktype release kobject: '0:46' (0000000034e4b10c): kobject_cleanup, parent (null) kobject: 'rx-0': free name kobject: 'tx-0' (000000007bac7a48): kobject_cleanup, parent 0000000001d12029 kobject: '0:46' (0000000034e4b10c): calling ktype release FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: '0:46': free name kobject: 'tx-0' (000000007bac7a48): auto cleanup 'remove' event kobject: 'tx-0' (000000007bac7a48): kobject_uevent_env kobject: 'tx-0' (000000007bac7a48): kobject_uevent_env: uevent_suppress caused the event to drop! CPU: 0 PID: 18980 Comm: syz-executor.4 Not tainted 5.0.0-rc8 #88 kobject: 'tx-0' (000000007bac7a48): auto cleanup kobject_del 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+0x172/0x1f0 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 __should_failslab+0x121/0x190 mm/failslab.c:32 kobject: 'tx-0' (000000007bac7a48): calling ktype release should_failslab+0x9/0x14 mm/slab_common.c:1604 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3374 [inline] kmem_cache_alloc+0x2b2/0x6f0 mm/slab.c:3548 kmem_cache_zalloc include/linux/slab.h:730 [inline] __kernfs_new_node+0xef/0x690 fs/kernfs/dir.c:634 kobject: 'tx-0': free name kernfs_new_node+0x99/0x130 fs/kernfs/dir.c:695 __kernfs_create_file+0x51/0x340 fs/kernfs/file.c:991 sysfs_add_file_mode_ns+0x222/0x560 fs/sysfs/file.c:306 create_files fs/sysfs/group.c:63 [inline] internal_create_group+0x35b/0xc40 fs/sysfs/group.c:148 kobject: 'queues' (0000000001d12029): kobject_cleanup, parent (null) sysfs_create_group+0x20/0x30 fs/sysfs/group.c:174 loop_sysfs_init drivers/block/loop.c:839 [inline] loop_set_fd drivers/block/loop.c:969 [inline] lo_ioctl+0xf8f/0x20d0 drivers/block/loop.c:1528 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xee8/0x1c40 block/ioctl.c:605 kobject: 'queues' (0000000001d12029): calling ktype release block_ioctl+0xee/0x130 fs/block_dev.c:1914 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696 kobject: '0:46' (00000000db88202f): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'queues' (0000000001d12029): kset_release kobject: 'queues': free name ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457c97 kobject: '0:46' (00000000db88202f): kobject_uevent_env Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fcf11fefa88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000457c97 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 kobject: 'team_slave_1' (000000003f438f01): kobject_uevent_env RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000000 R14: 00000000004dbd08 R15: 0000000000000003 kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: '0:46' (00000000db88202f): fill_kobj_path: path = '/devices/virtual/bdi/0:46' kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'team_slave_1' (000000003f438f01): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop5' (000000003cbebe53): kobject_uevent_env kobject: '0:49' (00000000c64084c1): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop5' (000000003cbebe53): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'batman_adv' (0000000065586258): kobject_uevent_env kobject: '0:49' (00000000c64084c1): kobject_uevent_env kobject: 'batman_adv' (0000000065586258): kobject_uevent_env: filter function caused the event to drop! kobject: '0:49' (00000000c64084c1): fill_kobj_path: path = '/devices/virtual/bdi/0:49' kobject: 'batman_adv' (0000000065586258): kobject_cleanup, parent (null) kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: 'batman_adv' (0000000065586258): calling ktype release kobject: (0000000065586258): dynamic_kobj_release kobject: 'batman_adv': free name kobject: 'rx-0' (0000000094bf5b0d): kobject_cleanup, parent 00000000d0d373f9 kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'rx-0' (0000000094bf5b0d): auto cleanup 'remove' event kobject: '0:47' (0000000030a1edde): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'rx-0' (0000000094bf5b0d): kobject_uevent_env kobject: '0:49' (00000000c64084c1): kobject_uevent_env kobject: 'rx-0' (0000000094bf5b0d): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: '0:47' (0000000030a1edde): kobject_uevent_env kobject: 'rx-0' (0000000094bf5b0d): auto cleanup kobject_del kobject: '0:47' (0000000030a1edde): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: 'rx-0' (0000000094bf5b0d): calling ktype release kobject: '0:49' (00000000c64084c1): fill_kobj_path: path = '/devices/virtual/bdi/0:49' kobject: 'rx-0': free name kobject: 'loop3' (0000000015a5ca95): kobject_uevent_env kobject: 'tx-0' (0000000066a8399f): kobject_cleanup, parent 00000000d0d373f9 kobject: 'loop3' (0000000015a5ca95): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'tx-0' (0000000066a8399f): auto cleanup 'remove' event kobject: '0:49' (00000000c64084c1): kobject_cleanup, parent (null) kobject: 'loop1' (00000000463a1cc1): kobject_uevent_env kobject: '0:49' (00000000c64084c1): calling ktype release kobject: 'tx-0' (0000000066a8399f): kobject_uevent_env kobject: '0:49': free name kobject: 'tx-0' (0000000066a8399f): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop1' (00000000463a1cc1): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'tx-0' (0000000066a8399f): auto cleanup kobject_del kobject: 'loop0' (00000000e97107a8): kobject_uevent_env kobject: 'tx-0' (0000000066a8399f): calling ktype release kobject: 'loop0' (00000000e97107a8): fill_kobj_path: path = '/devices/virtual/block/loop0' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: '0:46' (00000000db88202f): kobject_uevent_env CPU: 1 PID: 19001 Comm: syz-executor.4 Not tainted 5.0.0-rc8 #88 kobject: 'loop4' (0000000013041a73): kobject_uevent_env 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+0x172/0x1f0 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 kobject: '0:46' (00000000db88202f): fill_kobj_path: path = '/devices/virtual/bdi/0:46' __should_failslab+0x121/0x190 mm/failslab.c:32 kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' should_failslab+0x9/0x14 mm/slab_common.c:1604 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3374 [inline] kmem_cache_alloc+0x2b2/0x6f0 mm/slab.c:3548 kobject: '0:46' (00000000db88202f): kobject_cleanup, parent (null) kmem_cache_zalloc include/linux/slab.h:730 [inline] __kernfs_new_node+0xef/0x690 fs/kernfs/dir.c:634 kobject: '0:46' (00000000db88202f): calling ktype release kobject: '0:46': free name kernfs_new_node+0x99/0x130 fs/kernfs/dir.c:695 __kernfs_create_file+0x51/0x340 fs/kernfs/file.c:991 kobject: 'tx-0': free name sysfs_add_file_mode_ns+0x222/0x560 fs/sysfs/file.c:306 create_files fs/sysfs/group.c:63 [inline] internal_create_group+0x35b/0xc40 fs/sysfs/group.c:148 kobject: 'queues' (00000000d0d373f9): kobject_cleanup, parent (null) sysfs_create_group+0x20/0x30 fs/sysfs/group.c:174 loop_sysfs_init drivers/block/loop.c:839 [inline] loop_set_fd drivers/block/loop.c:969 [inline] lo_ioctl+0xf8f/0x20d0 drivers/block/loop.c:1528 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xee8/0x1c40 block/ioctl.c:605 kobject: 'queues' (00000000d0d373f9): calling ktype release kobject: 'queues' (00000000d0d373f9): kset_release kobject: 'queues': free name block_ioctl+0xee/0x130 fs/block_dev.c:1914 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696 kobject: 'veth1_to_team' (00000000cb9cd992): kobject_uevent_env kobject: 'veth1_to_team' (00000000cb9cd992): kobject_uevent_env: uevent_suppress caused the event to drop! ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457c97 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fcf11fefa88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000457c97 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000000 R14: 00000000004dbd08 R15: 0000000000000003 kobject: 'loop4' (0000000013041a73): kobject_uevent_env team0 (unregistering): Port device team_slave_0 removed kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'batman_adv' (000000001b53fba5): kobject_uevent_env kobject: 'batman_adv' (000000001b53fba5): kobject_uevent_env: filter function caused the event to drop! kobject: '0:46' (00000000393571e5): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop1' (00000000463a1cc1): kobject_uevent_env kobject: 'loop1' (00000000463a1cc1): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: '0:46' (00000000393571e5): kobject_uevent_env kobject: 'batman_adv' (000000001b53fba5): kobject_cleanup, parent (null) kobject: '0:46' (00000000393571e5): fill_kobj_path: path = '/devices/virtual/bdi/0:46' kobject: 'loop3' (0000000015a5ca95): kobject_uevent_env kobject: 'batman_adv' (000000001b53fba5): calling ktype release kobject: 'loop3' (0000000015a5ca95): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: 'loop2' (000000007c80e940): kobject_uevent_env kobject: (000000001b53fba5): dynamic_kobj_release kobject: 'loop2' (000000007c80e940): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '0:46' (00000000393571e5): kobject_uevent_env kobject: 'batman_adv': free name kobject: 'rx-0' (00000000c1766e1c): kobject_cleanup, parent 0000000050d2cf9b kobject: 'loop0' (00000000e97107a8): kobject_uevent_env kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000e97107a8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-0' (00000000c1766e1c): auto cleanup 'remove' event kobject: '0:46' (00000000393571e5): fill_kobj_path: path = '/devices/virtual/bdi/0:46' kobject: 'rx-0' (00000000c1766e1c): kobject_uevent_env kobject: 'rx-0' (00000000c1766e1c): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: '0:49' (000000009d76575c): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'rx-0' (00000000c1766e1c): auto cleanup kobject_del kobject: '0:46' (00000000393571e5): kobject_cleanup, parent (null) kobject: '0:49' (000000009d76575c): kobject_uevent_env kobject: 'rx-0' (00000000c1766e1c): calling ktype release kobject: '0:49' (000000009d76575c): fill_kobj_path: path = '/devices/virtual/bdi/0:49' kobject: '0:46' (00000000393571e5): calling ktype release kobject: 'rx-0': free name kobject: '0:46': free name kobject: 'tx-0' (00000000a19359ef): kobject_cleanup, parent 0000000050d2cf9b kobject: 'tx-0' (00000000a19359ef): auto cleanup 'remove' event kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: '0:55' (00000000e8847b44): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'tx-0' (00000000a19359ef): kobject_uevent_env kobject: '0:55' (00000000e8847b44): kobject_uevent_env kobject: '0:55' (00000000e8847b44): fill_kobj_path: path = '/devices/virtual/bdi/0:55' kobject: '0:47' (0000000030a1edde): kobject_uevent_env kobject: '0:47' (0000000030a1edde): fill_kobj_path: path = '/devices/virtual/bdi/0:47' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'tx-0' (00000000a19359ef): kobject_uevent_env: uevent_suppress caused the event to drop! CPU: 0 PID: 19026 Comm: syz-executor.4 Not tainted 5.0.0-rc8 #88 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: kobject: '0:47' (0000000030a1edde): kobject_cleanup, parent (null) __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 kobject: 'tx-0' (00000000a19359ef): auto cleanup kobject_del __should_failslab+0x121/0x190 mm/failslab.c:32 kobject: '0:47' (0000000030a1edde): calling ktype release should_failslab+0x9/0x14 mm/slab_common.c:1604 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3374 [inline] kmem_cache_alloc+0x2b2/0x6f0 mm/slab.c:3548 kmem_cache_zalloc include/linux/slab.h:730 [inline] __kernfs_new_node+0xef/0x690 fs/kernfs/dir.c:634 kobject: 'tx-0' (00000000a19359ef): calling ktype release kernfs_new_node+0x99/0x130 fs/kernfs/dir.c:695 __kernfs_create_file+0x51/0x340 fs/kernfs/file.c:991 sysfs_add_file_mode_ns+0x222/0x560 fs/sysfs/file.c:306 create_files fs/sysfs/group.c:63 [inline] internal_create_group+0x35b/0xc40 fs/sysfs/group.c:148 kobject: '0:47': free name sysfs_create_group+0x20/0x30 fs/sysfs/group.c:174 loop_sysfs_init drivers/block/loop.c:839 [inline] loop_set_fd drivers/block/loop.c:969 [inline] lo_ioctl+0xf8f/0x20d0 drivers/block/loop.c:1528 kobject: 'tx-0': free name __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xee8/0x1c40 block/ioctl.c:605 kobject: 'queues' (0000000050d2cf9b): kobject_cleanup, parent (null) block_ioctl+0xee/0x130 fs/block_dev.c:1914 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696 kobject: 'queues' (0000000050d2cf9b): calling ktype release ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457c97 Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fcf11fefa88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 kobject: 'queues' (0000000050d2cf9b): kset_release RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000457c97 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000000 R14: 00000000004dbd08 R15: 0000000000000003 kobject: '0:55' (00000000e8847b44): kobject_uevent_env kobject: 'queues': free name kobject: '0:55' (00000000e8847b44): fill_kobj_path: path = '/devices/virtual/bdi/0:55' kobject: '0:55' (00000000e8847b44): kobject_cleanup, parent (null) kobject: 'team_slave_0' (00000000fef684d7): kobject_uevent_env kobject: '0:55' (00000000e8847b44): calling ktype release kobject: 'team_slave_0' (00000000fef684d7): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: '0:55': free name kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: 'batman_adv' (000000007369c2fc): kobject_uevent_env kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'batman_adv' (000000007369c2fc): kobject_uevent_env: filter function caused the event to drop! kobject: '0:49' (000000009d76575c): kobject_uevent_env kobject: 'batman_adv' (000000007369c2fc): kobject_cleanup, parent (null) kobject: '0:49' (000000009d76575c): fill_kobj_path: path = '/devices/virtual/bdi/0:49' kobject: 'batman_adv' (000000007369c2fc): calling ktype release kobject: '0:49' (000000009d76575c): kobject_cleanup, parent (null) kobject: (000000007369c2fc): dynamic_kobj_release kobject: 'loop3' (0000000015a5ca95): kobject_uevent_env kobject: 'batman_adv': free name kobject: 'loop3' (0000000015a5ca95): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '0:49' (000000009d76575c): calling ktype release kobject: 'loop0' (00000000e97107a8): kobject_uevent_env kobject: 'rx-0' (000000000f89f282): kobject_cleanup, parent 000000007991b7b5 kobject: 'loop0' (00000000e97107a8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: '0:49': free name kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: 'rx-0' (000000000f89f282): auto cleanup 'remove' event kobject: '0:47' (00000000d6704c83): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'rx-0' (000000000f89f282): kobject_uevent_env kobject: 'loop1' (00000000463a1cc1): kobject_uevent_env kobject: 'rx-0' (000000000f89f282): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'rx-0' (000000000f89f282): auto cleanup kobject_del kobject: 'loop1' (00000000463a1cc1): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'rx-0' (000000000f89f282): calling ktype release kobject: 'loop5' (000000003cbebe53): kobject_uevent_env kobject: 'rx-0': free name kobject: '0:47' (00000000d6704c83): kobject_uevent_env kobject: 'tx-0' (00000000d7ba295e): kobject_cleanup, parent 000000007991b7b5 kobject: 'loop5' (000000003cbebe53): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'tx-0' (00000000d7ba295e): auto cleanup 'remove' event kobject: '0:47' (00000000d6704c83): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: 'tx-0' (00000000d7ba295e): kobject_uevent_env kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: 'tx-0' (00000000d7ba295e): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'tx-0' (00000000d7ba295e): auto cleanup kobject_del kobject: 'loop1' (00000000463a1cc1): kobject_uevent_env kobject: 'tx-0' (00000000d7ba295e): calling ktype release kobject: '0:46' (000000008b7b365a): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'tx-0': free name kobject: 'loop1' (00000000463a1cc1): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'queues' (000000007991b7b5): kobject_cleanup, parent (null) kobject: 'loop0' (00000000e97107a8): kobject_uevent_env kobject: '0:46' (000000008b7b365a): kobject_uevent_env kobject: 'loop0' (00000000e97107a8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'queues' (000000007991b7b5): calling ktype release kobject: 'loop2' (000000007c80e940): kobject_uevent_env kobject: 'queues' (000000007991b7b5): kset_release kobject: 'loop2' (000000007c80e940): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: '0:46' (000000008b7b365a): fill_kobj_path: path = '/devices/virtual/bdi/0:46' kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: '0:55' (00000000f1f0737d): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'queues': free name kobject: '0:55' (00000000f1f0737d): kobject_uevent_env kobject: 'veth0_to_team' (00000000dc5f06f4): kobject_uevent_env kobject: '0:55' (00000000f1f0737d): fill_kobj_path: path = '/devices/virtual/bdi/0:55' kobject: 'veth0_to_team' (00000000dc5f06f4): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'bonding_slave' (000000000dd0f8d5): kobject_cleanup, parent 00000000f871b07b kobject: 'loop1' (00000000463a1cc1): kobject_uevent_env kobject: 'bonding_slave' (000000000dd0f8d5): does not have a release() function, it is broken and must be fixed. See Documentation/kobject.txt. kobject: 'bonding_slave' (000000000dd0f8d5): auto cleanup kobject_del kobject: 'bonding_slave': free name kobject: 'loop1' (00000000463a1cc1): fill_kobj_path: path = '/devices/virtual/block/loop1' bond0 (unregistering): Releasing backup interface bond_slave_1 kobject: 'loop3' (0000000015a5ca95): kobject_uevent_env kobject: 'loop3' (0000000015a5ca95): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: '0:55' (00000000f1f0737d): kobject_uevent_env kobject: 'loop0' (00000000e97107a8): kobject_uevent_env kobject: '0:55' (00000000f1f0737d): fill_kobj_path: path = '/devices/virtual/bdi/0:55' kobject: 'loop0' (00000000e97107a8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: '0:55' (00000000f1f0737d): kobject_cleanup, parent (null) kobject: '0:55' (00000000f1f0737d): calling ktype release kobject: 'batman_adv' (00000000183dbc14): kobject_uevent_env kobject: '0:55': free name kobject: 'batman_adv' (00000000183dbc14): kobject_uevent_env: filter function caused the event to drop! kobject: 'batman_adv' (00000000183dbc14): kobject_cleanup, parent (null) kobject: '0:49' (000000004df4cdd1): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'batman_adv' (00000000183dbc14): calling ktype release kobject: '0:46' (000000008b7b365a): kobject_uevent_env kobject: '0:49' (000000004df4cdd1): kobject_uevent_env kobject: (00000000183dbc14): dynamic_kobj_release kobject: '0:49' (000000004df4cdd1): fill_kobj_path: path = '/devices/virtual/bdi/0:49' kobject: '0:46' (000000008b7b365a): fill_kobj_path: path = '/devices/virtual/bdi/0:46' kobject: 'batman_adv': free name kobject: 'rx-0' (00000000e1773efd): kobject_cleanup, parent 00000000d7a3309d kobject: '0:46' (000000008b7b365a): kobject_cleanup, parent (null) kobject: 'rx-0' (00000000e1773efd): auto cleanup 'remove' event kobject: 'rx-0' (00000000e1773efd): kobject_uevent_env kobject: 'rx-0' (00000000e1773efd): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000e1773efd): auto cleanup kobject_del kobject: '0:46' (000000008b7b365a): calling ktype release kobject: 'rx-0' (00000000e1773efd): calling ktype release kobject: '0:49' (000000004df4cdd1): kobject_uevent_env kobject: '0:46': free name kobject: '0:49' (000000004df4cdd1): fill_kobj_path: path = '/devices/virtual/bdi/0:49' kobject: 'rx-0': free name kobject: '0:49' (000000004df4cdd1): kobject_cleanup, parent (null) kobject: 'tx-0' (00000000ad0a9cc4): kobject_cleanup, parent 00000000d7a3309d kobject: '0:49' (000000004df4cdd1): calling ktype release kobject: 'tx-0' (00000000ad0a9cc4): auto cleanup 'remove' event kobject: '0:49': free name kobject: 'tx-0' (00000000ad0a9cc4): kobject_uevent_env kobject: 'tx-0' (00000000ad0a9cc4): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (00000000ad0a9cc4): auto cleanup kobject_del kobject: 'loop2' (000000007c80e940): kobject_uevent_env kobject: 'tx-0' (00000000ad0a9cc4): calling ktype release kobject: 'loop2' (000000007c80e940): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'tx-0': free name kobject: '0:47' (00000000d6704c83): kobject_uevent_env kobject: 'queues' (00000000d7a3309d): kobject_cleanup, parent (null) kobject: '0:47' (00000000d6704c83): fill_kobj_path: path = '/devices/virtual/bdi/0:47' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: '0:47' (00000000d6704c83): kobject_cleanup, parent (null) kobject: 'queues' (00000000d7a3309d): calling ktype release kobject: 'queues' (00000000d7a3309d): kset_release kobject: 'queues': free name CPU: 0 PID: 19073 Comm: syz-executor.4 Not tainted 5.0.0-rc8 #88 kobject: '0:47' (00000000d6704c83): calling ktype release 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+0x172/0x1f0 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 kobject: '0:47': free name __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1604 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3374 [inline] kmem_cache_alloc+0x2b2/0x6f0 mm/slab.c:3548 kobject: 'bond_slave_1' (00000000f871b07b): kobject_uevent_env kmem_cache_zalloc include/linux/slab.h:730 [inline] __kernfs_new_node+0xef/0x690 fs/kernfs/dir.c:634 kobject: 'bond_slave_1' (00000000f871b07b): kobject_uevent_env: uevent_suppress caused the event to drop! kernfs_new_node+0x99/0x130 fs/kernfs/dir.c:695 __kernfs_create_file+0x51/0x340 fs/kernfs/file.c:991 sysfs_add_file_mode_ns+0x222/0x560 fs/sysfs/file.c:306 create_files fs/sysfs/group.c:63 [inline] internal_create_group+0x35b/0xc40 fs/sysfs/group.c:148 sysfs_create_group+0x20/0x30 fs/sysfs/group.c:174 kobject: 'batman_adv' (000000004d1dab60): kobject_uevent_env loop_sysfs_init drivers/block/loop.c:839 [inline] loop_set_fd drivers/block/loop.c:969 [inline] lo_ioctl+0xf8f/0x20d0 drivers/block/loop.c:1528 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0xee8/0x1c40 block/ioctl.c:605 kobject: 'batman_adv' (000000004d1dab60): kobject_uevent_env: filter function caused the event to drop! block_ioctl+0xee/0x130 fs/block_dev.c:1914 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696 kobject: 'batman_adv' (000000004d1dab60): kobject_cleanup, parent (null) kobject: 'batman_adv' (000000004d1dab60): calling ktype release ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457c97 kobject: (000000004d1dab60): dynamic_kobj_release Code: 48 83 c4 08 48 89 d8 5b 5d c3 66 0f 1f 84 00 00 00 00 00 48 89 e8 48 f7 d8 48 39 c3 0f 92 c0 eb 92 66 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 0d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fcf11fefa88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000457c97 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 kobject: 'batman_adv': free name RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000000 R14: 00000000004dbd08 R15: 0000000000000003 kobject: '0:47' (0000000087b0b9c9): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'rx-0' (00000000fab94d1a): kobject_cleanup, parent 000000000ec1e0da kobject: '0:47' (0000000087b0b9c9): kobject_uevent_env kobject: 'rx-0' (00000000fab94d1a): auto cleanup 'remove' event kobject: '0:47' (0000000087b0b9c9): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: 'rx-0' (00000000fab94d1a): kobject_uevent_env kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: 'rx-0' (00000000fab94d1a): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: '0:49' (00000000babe0f87): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'rx-0' (00000000fab94d1a): auto cleanup kobject_del kobject: '0:49' (00000000babe0f87): kobject_uevent_env kobject: 'rx-0' (00000000fab94d1a): calling ktype release kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'rx-0': free name kobject: '0:49' (00000000babe0f87): fill_kobj_path: path = '/devices/virtual/bdi/0:49' kobject: 'tx-0' (000000003f7f4097): kobject_cleanup, parent 000000000ec1e0da kobject: 'loop1' (00000000463a1cc1): kobject_uevent_env kobject: 'tx-0' (000000003f7f4097): auto cleanup 'remove' event kobject: 'loop1' (00000000463a1cc1): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'tx-0' (000000003f7f4097): kobject_uevent_env kobject: 'loop3' (0000000015a5ca95): kobject_uevent_env kobject: 'tx-0' (000000003f7f4097): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'loop3' (0000000015a5ca95): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'tx-0' (000000003f7f4097): auto cleanup kobject_del kobject: 'loop5' (000000003cbebe53): kobject_uevent_env kobject: 'tx-0' (000000003f7f4097): calling ktype release kobject: '0:49' (00000000babe0f87): kobject_uevent_env kobject: 'tx-0': free name kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: '0:46' (000000000a12976f): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'loop5' (000000003cbebe53): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: '0:46' (000000000a12976f): kobject_uevent_env kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'queues' (000000000ec1e0da): kobject_cleanup, parent (null) kobject: '0:49' (00000000babe0f87): fill_kobj_path: path = '/devices/virtual/bdi/0:49' kobject: 'queues' (000000000ec1e0da): calling ktype release kobject: 'loop0' (00000000e97107a8): kobject_uevent_env kobject: '0:46' (000000000a12976f): fill_kobj_path: path = '/devices/virtual/bdi/0:46' kobject: 'loop0' (00000000e97107a8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'queues' (000000000ec1e0da): kset_release kobject: '0:49' (00000000babe0f87): kobject_cleanup, parent (null) kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: '0:49' (00000000babe0f87): calling ktype release kobject: 'queues': free name kobject: '0:49': free name kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'veth1_to_bond' (0000000054608715): kobject_uevent_env kobject: 'loop3' (0000000015a5ca95): kobject_uevent_env kobject: 'veth1_to_bond' (0000000054608715): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: '0:47' (0000000087b0b9c9): kobject_uevent_env kobject: 'loop3' (0000000015a5ca95): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'bonding_slave' (00000000c95f8741): kobject_cleanup, parent 00000000e2410ec5 kobject: '0:47' (0000000087b0b9c9): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: 'loop1' (00000000463a1cc1): kobject_uevent_env kobject: '0:47' (0000000087b0b9c9): kobject_cleanup, parent (null) kobject: 'loop1' (00000000463a1cc1): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'bonding_slave' (00000000c95f8741): does not have a release() function, it is broken and must be fixed. See Documentation/kobject.txt. kobject: 'loop4' (0000000013041a73): kobject_uevent_env kobject: '0:47' (0000000087b0b9c9): calling ktype release kobject: 'loop4' (0000000013041a73): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'bonding_slave' (00000000c95f8741): auto cleanup kobject_del kobject: '0:47': free name kobject: 'bonding_slave': free name kobject: 'loop0' (00000000e97107a8): kobject_uevent_env bond0 (unregistering): Releasing backup interface bond_slave_0 kobject: 'loop0' (00000000e97107a8): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (000000007c80e940): kobject_uevent_env kobject: 'loop2' (000000007c80e940): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'batman_adv' (00000000e99fa3bd): kobject_uevent_env kobject: 'batman_adv' (00000000e99fa3bd): kobject_uevent_env: filter function caused the event to drop! kobject: 'batman_adv' (00000000e99fa3bd): kobject_cleanup, parent (null) kobject: 'batman_adv' (00000000e99fa3bd): calling ktype release kobject: (00000000e99fa3bd): dynamic_kobj_release kobject: 'batman_adv': free name kobject: 'rx-0' (00000000d6274f90): kobject_cleanup, parent 000000009c79eab4 kobject: '0:47' (0000000030096bcb): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'rx-0' (00000000d6274f90): auto cleanup 'remove' event kobject: 'rx-0' (00000000d6274f90): kobject_uevent_env kobject: 'rx-0' (00000000d6274f90): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (00000000d6274f90): auto cleanup kobject_del kobject: 'rx-0' (00000000d6274f90): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (00000000ae91a324): kobject_cleanup, parent 000000009c79eab4 kobject: 'tx-0' (00000000ae91a324): auto cleanup 'remove' event kobject: 'tx-0' (00000000ae91a324): kobject_uevent_env kobject: 'tx-0' (00000000ae91a324): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (00000000ae91a324): auto cleanup kobject_del kobject: 'tx-0' (00000000ae91a324): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (000000009c79eab4): kobject_cleanup, parent (null) kobject: 'queues' (000000009c79eab4): calling ktype release kobject: 'queues' (000000009c79eab4): kset_release kobject: 'queues': free name kobject: '0:47' (0000000030096bcb): kobject_uevent_env kobject: 'bond_slave_0' (00000000e2410ec5): kobject_uevent_env kobject: '0:47' (0000000030096bcb): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: 'bond_slave_0' (00000000e2410ec5): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: '0:55' (000000008a841671): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'batman_adv' (00000000d0f74c57): kobject_uevent_env kobject: '0:55' (000000008a841671): kobject_uevent_env kobject: 'batman_adv' (00000000d0f74c57): kobject_uevent_env: filter function caused the event to drop! kobject: '0:55' (000000008a841671): fill_kobj_path: path = '/devices/virtual/bdi/0:55' kobject: 'batman_adv' (00000000d0f74c57): kobject_cleanup, parent (null) kobject: '0:57' (0000000045c2cb67): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'batman_adv' (00000000d0f74c57): calling ktype release kobject: '0:57' (0000000045c2cb67): kobject_uevent_env kobject: (00000000d0f74c57): dynamic_kobj_release kobject: 'batman_adv': free name kobject: 'rx-0' (0000000070f9aa09): kobject_cleanup, parent 000000001bd42084 kobject: '0:55' (000000008a841671): kobject_uevent_env kobject: 'rx-0' (0000000070f9aa09): auto cleanup 'remove' event kobject: 'rx-0' (0000000070f9aa09): kobject_uevent_env kobject: 'rx-0' (0000000070f9aa09): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (0000000070f9aa09): auto cleanup kobject_del kobject: 'rx-0' (0000000070f9aa09): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (0000000013234e4b): kobject_cleanup, parent 000000001bd42084 kobject: 'tx-0' (0000000013234e4b): auto cleanup 'remove' event kobject: 'tx-0' (0000000013234e4b): kobject_uevent_env kobject: '0:55' (000000008a841671): fill_kobj_path: path = '/devices/virtual/bdi/0:55' kobject: 'tx-0' (0000000013234e4b): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (0000000013234e4b): auto cleanup kobject_del kobject: 'tx-0' (0000000013234e4b): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (000000001bd42084): kobject_cleanup, parent (null) kobject: 'queues' (000000001bd42084): calling ktype release kobject: '0:57' (0000000045c2cb67): fill_kobj_path: path = '/devices/virtual/bdi/0:57' kobject: 'queues' (000000001bd42084): kset_release kobject: 'queues': free name kobject: 'veth0_to_bond' (0000000094ba509e): kobject_uevent_env kobject: '0:55' (000000008a841671): kobject_cleanup, parent (null) kobject: 'veth0_to_bond' (0000000094ba509e): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: '0:55' (000000008a841671): calling ktype release kobject: 'batman_adv' (000000000b62bda0): kobject_uevent_env kobject: '0:55': free name kobject: 'batman_adv' (000000000b62bda0): kobject_uevent_env: filter function caused the event to drop! kobject: '0:57' (0000000045c2cb67): kobject_uevent_env kobject: 'batman_adv' (000000000b62bda0): kobject_cleanup, parent (null) kobject: '0:47' (0000000030096bcb): kobject_uevent_env kobject: 'batman_adv' (000000000b62bda0): calling ktype release kobject: '0:47' (0000000030096bcb): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: (000000000b62bda0): dynamic_kobj_release kobject: 'batman_adv': free name kobject: 'rx-0' (0000000064d705ec): kobject_cleanup, parent 000000008017567f kobject: '0:57' (0000000045c2cb67): fill_kobj_path: path = '/devices/virtual/bdi/0:57' kobject: 'rx-0' (0000000064d705ec): auto cleanup 'remove' event kobject: 'rx-0' (0000000064d705ec): kobject_uevent_env kobject: 'rx-0' (0000000064d705ec): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (0000000064d705ec): auto cleanup kobject_del kobject: 'rx-0' (0000000064d705ec): calling ktype release kobject: '0:57' (0000000045c2cb67): kobject_cleanup, parent (null) kobject: 'rx-0': free name kobject: 'tx-0' (000000007d4d1f35): kobject_cleanup, parent 000000008017567f kobject: 'tx-0' (000000007d4d1f35): auto cleanup 'remove' event kobject: 'tx-0' (000000007d4d1f35): kobject_uevent_env kobject: 'tx-0' (000000007d4d1f35): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (000000007d4d1f35): auto cleanup kobject_del kobject: 'tx-0' (000000007d4d1f35): calling ktype release kobject: '0:47' (0000000030096bcb): kobject_cleanup, parent (null) kobject: 'tx-0': free name kobject: 'queues' (000000008017567f): kobject_cleanup, parent (null) kobject: 'queues' (000000008017567f): calling ktype release kobject: '0:47' (0000000030096bcb): calling ktype release kobject: 'queues' (000000008017567f): kset_release kobject: 'queues': free name kobject: 'bridge_slave_1' (000000001194912a): kobject_uevent_env kobject: '0:57' (0000000045c2cb67): calling ktype release kobject: 'bridge_slave_1' (000000001194912a): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'batman_adv' (000000001bbc3d14): kobject_uevent_env kobject: '0:57': free name kobject: 'batman_adv' (000000001bbc3d14): kobject_uevent_env: filter function caused the event to drop! kobject: '0:47': free name kobject: 'batman_adv' (000000001bbc3d14): kobject_cleanup, parent (null) kobject: 'loop2' (000000007c80e940): kobject_uevent_env kobject: 'batman_adv' (000000001bbc3d14): calling ktype release kobject: 'loop2' (000000007c80e940): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: (000000001bbc3d14): dynamic_kobj_release kobject: '0:46' (000000000a12976f): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: '0:46' (000000000a12976f): fill_kobj_path: path = '/devices/virtual/bdi/0:46' kobject: 'batman_adv': free name kobject: '0:46' (000000000a12976f): kobject_cleanup, parent (null) kobject: '0:47' (0000000008af600a): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: 'rx-0' (00000000f4ad9600): kobject_cleanup, parent 00000000ed91c3fe kobject: 'rx-0' (00000000f4ad9600): auto cleanup 'remove' event kobject: '0:46' (000000000a12976f): calling ktype release kobject: 'rx-0' (00000000f4ad9600): kobject_uevent_env kobject: '0:46': free name kobject: 'rx-0' (00000000f4ad9600): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: '0:47' (0000000008af600a): kobject_uevent_env kobject: 'rx-0' (00000000f4ad9600): auto cleanup kobject_del kobject: '0:47' (0000000008af600a): fill_kobj_path: path = '/devices/virtual/bdi/0:47' kobject: 'rx-0' (00000000f4ad9600): calling ktype release CPU: 1 PID: 19119 Comm: syz-executor.4 Not tainted 5.0.0-rc8 #88 kobject: 'rx-0': free name 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+0x172/0x1f0 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 kobject: 'tx-0' (0000000082d6d77c): kobject_cleanup, parent 00000000ed91c3fe __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1604 kobject: 'tx-0' (0000000082d6d77c): auto cleanup 'remove' event slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3374 [inline] kmem_cache_alloc+0x2b2/0x6f0 mm/slab.c:3548 kobject: 'tx-0' (0000000082d6d77c): kobject_uevent_env kobject: 'tx-0' (0000000082d6d77c): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (0000000082d6d77c): auto cleanup kobject_del kmem_cache_zalloc include/linux/slab.h:730 [inline] __kernfs_new_node+0xef/0x690 fs/kernfs/dir.c:634 kobject: '0:49' (000000002ff85542): kobject_add_internal: parent: 'bdi', set: 'devices' kobject: '0:49' (000000002ff85542): kobject_uevent_env kobject: 'tx-0' (0000000082d6d77c): calling ktype release kernfs_new_node+0x99/0x130 fs/kernfs/dir.c:695 kobject: 'tx-0': free name __kernfs_create_file+0x51/0x340 fs/kernfs/file.c:991 kobject: '0:49' (000000002ff85542): fill_kobj_path: path = '/devices/virtual/bdi/0:49' sysfs_add_file_mode_ns+0x222/0x560 fs/sysfs/file.c:306 create_files fs/sysfs/group.c:63 [inline] internal_create_group+0x35b/0xc40 fs/sysfs/group.c:148