===================================== WARNING: bad unlock balance detected! 5.2.0-rc5+ #3 Not tainted ------------------------------------- syz-executor.3/1203 is trying to release lock (rcu_callback) at: [] rcu_lock_release+0x4/0x20 include/linux/rcupdate.h:212 but there are no more locks to release! other info that might help us debug this: 1 lock held by syz-executor.3/1203: #0: 00000000ae396ab9 (&type->s_umount_key#48/1){+.+.}, at: alloc_super+0x15f/0x740 fs/super.c:228 stack backtrace: CPU: 0 PID: 1203 Comm: syz-executor.3 Not tainted 5.2.0-rc5+ #3 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+0x1d8/0x2f8 lib/dump_stack.c:113 print_unlock_imbalance_bug+0x26d/0x2b0 kernel/locking/lockdep.c:3846 __lock_release kernel/locking/lockdep.c:4062 [inline] lock_release+0x435/0x790 kernel/locking/lockdep.c:4322 rcu_lock_release+0x1c/0x20 include/linux/rcupdate.h:214 __rcu_reclaim kernel/rcu/rcu.h:223 [inline] rcu_do_batch kernel/rcu/tree.c:2092 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2310 [inline] rcu_core+0x8e2/0xf90 kernel/rcu/tree.c:2291 __do_softirq+0x340/0x7b0 arch/x86/include/asm/paravirt.h:777 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x21a/0x230 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0xf8/0x260 arch/x86/kernel/apic/apic.c:1068 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:806 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:767 [inline] RIP: 0010:console_unlock+0xa65/0xf20 kernel/printk/printk.c:2471 Code: 20 00 74 0c 48 c7 c7 90 63 aa 88 e8 a5 44 50 00 48 83 3d fd cc 4b 07 00 0f 84 7d 04 00 00 e8 52 1b 17 00 48 8b 7c 24 28 57 9d <0f> 1f 44 00 00 f6 44 24 1f 01 75 52 e8 3a 1b 17 00 eb 63 0f 1f 84 RSP: 0018:ffff88805b6c7540 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: ffffffff815e969e RBX: 0000000000000200 RCX: 0000000000040000 RDX: ffffc9000c450000 RSI: 000000000002643c RDI: 0000000000000282 RBP: ffff88805b6c7670 R08: ffff88805cb14040 R09: fffffbfff115a505 R10: fffffbfff115a505 R11: 1ffffffff115a504 R12: dffffc0000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff88c31298 vprintk_emit+0x239/0x3a0 kernel/printk/printk.c:1986 vprintk_default+0x28/0x30 kernel/printk/printk.c:2013 vprintk_func+0x158/0x170 kernel/printk/printk_safe.c:386 printk+0xc4/0x11d kernel/printk/printk.c:2046 __ntfs_error+0x21b/0x230 fs/ntfs/debug.c:89 parse_options+0x481/0x1f80 fs/ntfs/super.c:234 ntfs_fill_super+0x19b/0x2940 fs/ntfs/super.c:2748 mount_bdev+0x31c/0x440 fs/super.c:1346 ntfs_mount+0x34/0x40 fs/ntfs/super.c:3051 legacy_get_tree+0xf9/0x1a0 fs/fs_context.c:661 vfs_get_tree+0x8f/0x360 fs/super.c:1476 do_new_mount fs/namespace.c:2791 [inline] do_mount+0x1813/0x2730 fs/namespace.c:3111 ksys_mount+0xcc/0x100 fs/namespace.c:3320 __do_sys_mount fs/namespace.c:3334 [inline] __se_sys_mount fs/namespace.c:3331 [inline] __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3331 do_syscall_64+0xfe/0x140 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45bd1a Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 9d 8d fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 7a 8d fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007f49071c9a88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f49071c9b40 RCX: 000000000045bd1a RDX: 00007f49071c9ae0 RSI: 0000000020000140 RDI: 00007f49071c9b00 RBP: 0000000000000000 R08: 00007f49071c9b40 R09: 00007f49071c9ae0 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000003 R13: 00000000004c82e2 R14: 00000000004deb40 R15: 00000000ffffffff 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 protocol 88fb is buggy, dev hsr_slave_1 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 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 net_ratelimit: 21 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