net_ratelimit: 20 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 BUG: spinlock bad magic on CPU#1, syz-executor.3/13206 lock: 0xffff8880ae92c9fb, .magic: 00000000, .owner: /-1, .owner_cpu: 0 kobject: 'loop0' (00000000eada5c14): kobject_uevent_env CPU: 1 PID: 13206 Comm: syz-executor.3 Not tainted 5.0.0-rc8+ #89 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 spin_dump.cold+0x81/0xe6 kernel/locking/spinlock_debug.c:67 kobject: 'loop0' (00000000eada5c14): fill_kobj_path: path = '/devices/virtual/block/loop0' spin_bug kernel/locking/spinlock_debug.c:75 [inline] debug_spin_lock_before kernel/locking/spinlock_debug.c:83 [inline] do_raw_spin_lock+0x231/0x2e0 kernel/locking/spinlock_debug.c:112 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:129 [inline] _raw_spin_lock_irq+0x68/0x80 kernel/locking/spinlock.c:160 spin_lock_irq include/linux/spinlock.h:354 [inline] flush_workqueue_prep_pwqs+0x1c5/0x590 kernel/workqueue.c:2633 flush_workqueue+0x54b/0x14c0 kernel/workqueue.c:2704 kobject: 'loop0' (00000000eada5c14): kobject_uevent_env kobject: 'loop0' (00000000eada5c14): fill_kobj_path: path = '/devices/virtual/block/loop0' ceph_msgr_flush+0x15/0x20 net/ceph/messenger.c:293 ceph_mdsc_destroy+0x49/0x140 fs/ceph/mds_client.c:3934 ceph_mount+0xc9e/0x1870 fs/ceph/super.c:1110 mount_fs+0x106/0x3ff fs/super.c:1258 vfs_kern_mount.part.0+0x6f/0x410 fs/namespace.c:959 vfs_kern_mount fs/namespace.c:949 [inline] do_new_mount fs/namespace.c:2513 [inline] do_mount+0x581/0x2d30 fs/namespace.c:2845 __do_compat_sys_mount fs/compat.c:125 [inline] __se_compat_sys_mount fs/compat.c:92 [inline] __ia32_compat_sys_mount+0x664/0x790 fs/compat.c:92 kobject: 'loop4' (00000000c9111748): kobject_uevent_env do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline] do_fast_syscall_32+0x281/0xc98 arch/x86/entry/common.c:397 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f1b869 Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f5d170cc EFLAGS: 00000296 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 0000000020000040 RCX: 0000000020000080 RDX: 0000000020000100 RSI: 0000000000000000 RDI: 0000000020000140 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 kobject: 'loop4' (00000000c9111748): fill_kobj_path: path = '/devices/virtual/block/loop4' R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop2' (000000004faf16d1): kobject_uevent_env kobject: 'loop2' (000000004faf16d1): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'kvm' (00000000dc82dc3c): kobject_uevent_env kobject: 'kvm' (00000000dc82dc3c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (00000000eada5c14): kobject_uevent_env kobject: 'loop0' (00000000eada5c14): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (00000000dc82dc3c): kobject_uevent_env kobject: 'kvm' (00000000dc82dc3c): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop2' (000000004faf16d1): kobject_uevent_env kobject: 'loop2' (000000004faf16d1): fill_kobj_path: path = '/devices/virtual/block/loop2' BUG: unable to handle kernel paging request at ffffffffff000010 kobject: 'loop3' (000000004fdcb592): kobject_uevent_env #PF error: [normal kernel read fault] kobject: 'loop3' (000000004fdcb592): fill_kobj_path: path = '/devices/virtual/block/loop3' PGD 8874067 P4D 8874067 PUD 8876067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5856 Comm: kworker/1:1 Not tainted 5.0.0-rc8+ #89 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: (null) (rcu_gp) RIP: 0010:find_worker_executing_work kernel/workqueue.c:1026 [inline] RIP: 0010:process_one_work+0x340/0x1790 kernel/workqueue.c:2097 Code: 48 85 db 74 73 e8 70 65 25 00 48 85 db 74 69 e8 66 65 25 00 48 8d 7b 10 48 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 7d 10 00 00 <4c> 3b 63 10 75 b6 e8 45 65 25 00 48 8d 7b 18 48 89 f8 48 c1 e8 03 RSP: 0018:ffff888160947d40 EFLAGS: 00010046 RAX: 1fffffffffe00002 RBX: ffffffffff000000 RCX: ffffffff814a78f6 RDX: 0000000000000000 RSI: ffffffff814a79ba RDI: ffffffffff000010 RBP: ffff888160947e48 R08: ffff88805fe9c5c0 R09: ffffed1015d251ee R10: ffffed1015d251ed R11: ffff8880ae928f6f R12: ffff8880ae928f68 R13: dffffc0000000000 R14: ffffed1015d251f0 R15: ffff8880ae92c800 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000130 CR3: 000000008bdef000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: worker_thread+0x98/0xe40 kernel/workqueue.c:2319 kthread+0x357/0x430 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Modules linked in: CR2: ffffffffff000010 ---[ end trace ba47a8cb3992a8c9 ]--- RIP: 0010:find_worker_executing_work kernel/workqueue.c:1026 [inline] RIP: 0010:process_one_work+0x340/0x1790 kernel/workqueue.c:2097 Code: 48 85 db 74 73 e8 70 65 25 00 48 85 db 74 69 e8 66 65 25 00 48 8d 7b 10 48 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 7d 10 00 00 <4c> 3b 63 10 75 b6 e8 45 65 25 00 48 8d 7b 18 48 89 f8 48 c1 e8 03 RSP: 0018:ffff888160947d40 EFLAGS: 00010046 RAX: 1fffffffffe00002 RBX: ffffffffff000000 RCX: ffffffff814a78f6 RDX: 0000000000000000 RSI: ffffffff814a79ba RDI: ffffffffff000010 RBP: ffff888160947e48 R08: ffff88805fe9c5c0 R09: ffffed1015d251ee R10: ffffed1015d251ed R11: ffff8880ae928f6f R12: ffff8880ae928f68 R13: dffffc0000000000 R14: ffffed1015d251f0 R15: ffff8880ae92c800 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000130 CR3: 000000008bdef000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400