overlayfs: './file0' not a directory Process accounting resumed ====================================================== WARNING: possible circular locking dependency detected 4.19.37 #5 Not tainted ------------------------------------------------------ syz-executor.2/27582 is trying to acquire lock: 000000000964c0c8 (&ovl_i_mutex_key[depth]){+.+.}, at: inode_lock include/linux/fs.h:738 [inline] 000000000964c0c8 (&ovl_i_mutex_key[depth]){+.+.}, at: ovl_write_iter+0x148/0xc20 fs/overlayfs/file.c:231 but task is already holding lock: 000000003316b815 (&acct->lock#2){+.+.}, at: acct_pin_kill+0x27/0x100 kernel/acct.c:173 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&acct->lock#2){+.+.}: kobject: 'loop4' (00000000acec313b): kobject_uevent_env __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0xf7/0x1300 kernel/locking/mutex.c:1072 kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 acct_pin_kill+0x27/0x100 kernel/acct.c:173 pin_kill+0x18f/0x860 fs/fs_pin.c:50 acct_on+0x574/0x790 kernel/acct.c:254 __do_sys_acct kernel/acct.c:286 [inline] __se_sys_acct kernel/acct.c:273 [inline] __x64_sys_acct+0xae/0x200 kernel/acct.c:273 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (sb_writers#4){.+.+}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x20b/0x360 fs/super.c:1387 sb_start_write include/linux/fs.h:1569 [inline] mnt_want_write+0x3f/0xc0 fs/namespace.c:360 ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24 ovl_setattr+0xdd/0x950 fs/overlayfs/inode.c:30 notify_change+0xad9/0xfb0 fs/attr.c:334 do_truncate+0x158/0x220 fs/open.c:63 handle_truncate fs/namei.c:3008 [inline] do_last fs/namei.c:3424 [inline] path_openat+0x2cc6/0x4690 fs/namei.c:3534 do_filp_open+0x1a1/0x280 fs/namei.c:3564 do_sys_open+0x3fe/0x550 fs/open.c:1069 __do_sys_openat fs/open.c:1096 [inline] __se_sys_openat fs/open.c:1090 [inline] __x64_sys_openat+0x9d/0x100 fs/open.c:1090 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&ovl_i_mutex_key[depth]){+.+.}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900 down_write+0x38/0x90 kernel/locking/rwsem.c:70 inode_lock include/linux/fs.h:738 [inline] ovl_write_iter+0x148/0xc20 fs/overlayfs/file.c:231 call_write_iter include/linux/fs.h:1811 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x58e/0x820 fs/read_write.c:487 __kernel_write+0x110/0x390 fs/read_write.c:506 do_acct_process+0xd37/0x1150 kernel/acct.c:520 acct_pin_kill+0x2f/0x100 kernel/acct.c:174 pin_kill+0x18f/0x860 fs/fs_pin.c:50 acct_on+0x574/0x790 kernel/acct.c:254 __do_sys_acct kernel/acct.c:286 [inline] __se_sys_acct kernel/acct.c:273 [inline] __x64_sys_acct+0xae/0x200 kernel/acct.c:273 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: &ovl_i_mutex_key[depth] --> sb_writers#4 --> &acct->lock#2 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&acct->lock#2); lock(sb_writers#4); lock(&acct->lock#2); lock(&ovl_i_mutex_key[depth]); *** DEADLOCK *** 4 locks held by syz-executor.2/27582: #0: 00000000039638ba (acct_on_mutex){+.+.}, at: __do_sys_acct kernel/acct.c:285 [inline] #0: 00000000039638ba (acct_on_mutex){+.+.}, at: __se_sys_acct kernel/acct.c:273 [inline] #0: 00000000039638ba (acct_on_mutex){+.+.}, at: __x64_sys_acct+0xa6/0x200 kernel/acct.c:273 #1: 00000000a3fc44d3 (sb_writers#17){.+.+}, at: sb_start_write include/linux/fs.h:1569 [inline] #1: 00000000a3fc44d3 (sb_writers#17){.+.+}, at: mnt_want_write+0x3f/0xc0 fs/namespace.c:360 #2: 000000003316b815 (&acct->lock#2){+.+.}, at: acct_pin_kill+0x27/0x100 kernel/acct.c:173 #3: 00000000a3fc44d3 (sb_writers#17){.+.+}, at: file_start_write_trylock include/linux/fs.h:2771 [inline] #3: 00000000a3fc44d3 (sb_writers#17){.+.+}, at: do_acct_process+0xf37/0x1150 kernel/acct.c:517 stack backtrace: CPU: 1 PID: 27582 Comm: syz-executor.2 Not tainted 4.19.37 #5 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 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1221 check_prev_add kernel/locking/lockdep.c:1861 [inline] check_prevs_add kernel/locking/lockdep.c:1974 [inline] validate_chain kernel/locking/lockdep.c:2415 [inline] __lock_acquire+0x2e6d/0x48f0 kernel/locking/lockdep.c:3411 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900 down_write+0x38/0x90 kernel/locking/rwsem.c:70 inode_lock include/linux/fs.h:738 [inline] ovl_write_iter+0x148/0xc20 fs/overlayfs/file.c:231 call_write_iter include/linux/fs.h:1811 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x58e/0x820 fs/read_write.c:487 __kernel_write+0x110/0x390 fs/read_write.c:506 do_acct_process+0xd37/0x1150 kernel/acct.c:520 acct_pin_kill+0x2f/0x100 kernel/acct.c:174 pin_kill+0x18f/0x860 fs/fs_pin.c:50 acct_on+0x574/0x790 kernel/acct.c:254 __do_sys_acct kernel/acct.c:286 [inline] __se_sys_acct kernel/acct.c:273 [inline] __x64_sys_acct+0xae/0x200 kernel/acct.c:273 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458da9 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:00007fcbade09c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a3 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000458da9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200000c0 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcbade0a6d4 R13: 00000000004becd2 R14: 00000000004cfa50 R15: 00000000ffffffff kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' Process accounting resumed kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' Enabling of bearer rejected, illegal name kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env Enabling of bearer rejected, illegal name kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' Enabling of bearer rejected, illegal name kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (00000000ca0a9aa1): kobject_uevent_env kobject: 'kvm' (00000000ca0a9aa1): fill_kobj_path: path = '/devices/virtual/misc/kvm' Enabling of bearer rejected, illegal name kobject: 'kvm' (00000000ca0a9aa1): kobject_uevent_env kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'kvm' (00000000ca0a9aa1): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (00000000ca0a9aa1): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (00000000ca0a9aa1): fill_kobj_path: path = '/devices/virtual/misc/kvm' Enabling of bearer rejected, illegal name kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (00000000ca0a9aa1): kobject_uevent_env kobject: 'kvm' (00000000ca0a9aa1): fill_kobj_path: path = '/devices/virtual/misc/kvm' Enabling of bearer rejected, illegal name kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' net_ratelimit: 31 callbacks suppressed openvswitch: netlink: IP tunnel dst address not specified kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' openvswitch: netlink: IP tunnel dst address not specified kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' openvswitch: netlink: IP tunnel dst address not specified kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env openvswitch: netlink: IP tunnel dst address not specified kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000acec313b): kobject_uevent_env openvswitch: netlink: IP tunnel dst address not specified kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' openvswitch: netlink: IP tunnel dst address not specified kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' openvswitch: netlink: IP tunnel dst address not specified kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env openvswitch: netlink: IP tunnel dst address not specified kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' openvswitch: netlink: IP tunnel dst address not specified kobject: 'loop5' (000000000d991ad8): kobject_uevent_env openvswitch: netlink: IP tunnel dst address not specified kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' binder: 27954:27957 Acquire 1 refcount change on invalid ref 6 ret -22 binder: 27954:27957 Acquire 1 refcount change on invalid ref 0 ret -22 kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' binder: 27954:27957 got reply transaction with no transaction stack binder: 27954:27957 transaction failed 29201/-71, size 0-0 line 2762 kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' binder: undelivered TRANSACTION_ERROR: 29201 kobject: 'loop5' (000000000d991ad8): kobject_uevent_env binder: 27954:27968 Acquire 1 refcount change on invalid ref 6 ret -22 kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' binder: 27954:27974 Acquire 1 refcount change on invalid ref 0 ret -22 binder: 27954:27974 got reply transaction with no transaction stack kobject: 'loop2' (000000008ef4af37): kobject_uevent_env binder: 27954:27974 transaction failed 29201/-71, size 0-0 line 2762 binder: undelivered TRANSACTION_ERROR: 29201 kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' net_ratelimit: 38 callbacks suppressed openvswitch: netlink: IP tunnel dst address not specified openvswitch: netlink: Message has 8 unknown bytes. openvswitch: netlink: IP tunnel dst address not specified kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' openvswitch: netlink: Key 5 has unexpected len 0 expected 2 kobject: 'loop5' (000000000d991ad8): kobject_uevent_env openvswitch: netlink: IP tunnel dst address not specified kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' openvswitch: netlink: IP tunnel dst address not specified openvswitch: netlink: IP tunnel attribute has 1 unknown bytes. kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' openvswitch: netlink: IP tunnel dst address not specified kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' openvswitch: netlink: IP tunnel attribute has 2 unknown bytes. kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' CPU: 0 PID: 28490 Comm: syz-executor.2 Not tainted 4.19.37 #5 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 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc_node mm/slab.c:3304 [inline] kmem_cache_alloc_node+0x26f/0x710 mm/slab.c:3647 __alloc_skb+0xd5/0x5f0 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:995 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1189 [inline] netlink_sendmsg+0x97b/0xd70 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:632 ___sys_sendmsg+0x806/0x930 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458da9 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:00007fcbade09c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fcbade09c90 RCX: 0000000000458da9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcbade0a6d4 R13: 00000000004c6636 R14: 00000000004daf58 R15: 0000000000000004 kobject: 'loop2' (000000008ef4af37): kobject_uevent_env openvswitch: netlink: IP tunnel dst address not specified kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' Enabling of bearer rejected, illegal name kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' Enabling of bearer rejected, illegal name kobject: 'loop5' (000000000d991ad8): kobject_uevent_env kobject: 'loop5' (000000000d991ad8): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (000000008ef4af37): kobject_uevent_env kobject: 'loop2' (000000008ef4af37): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (0000000055dc9313): kobject_uevent_env kobject: 'loop3' (0000000055dc9313): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000acec313b): kobject_uevent_env kobject: 'loop4' (00000000acec313b): fill_kobj_path: path = '/devices/virtual/block/loop4' Enabling of bearer rejected, illegal name kobject: 'loop3' (0000000055dc9313): kobject_uevent_env