------------[ cut here ]------------ ODEBUG: activate active (active state 1) object: ffff88805f7d8880 object type: rcu_head hint: 0x0 WARNING: CPU: 0 PID: 5312 at lib/debugobjects.c:517 debug_print_object+0x17a/0x1f0 lib/debugobjects.c:514 Modules linked in: CPU: 0 PID: 5312 Comm: syz-executor.1 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 RIP: 0010:debug_print_object+0x17a/0x1f0 lib/debugobjects.c:514 Code: e8 0b ce 4a fd 4c 8b 0b 48 c7 c7 c0 dc fe 8b 48 8b 74 24 08 48 89 ea 44 89 e1 4d 89 f8 ff 34 24 e8 fb 52 aa fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 1c f7 d9 0a 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 RSP: 0018:ffffc90009357918 EFLAGS: 00010286 RAX: 4f99673346f48000 RBX: ffffffff8babd760 RCX: 0000000000040000 RDX: ffffc900095f9000 RSI: 000000000002ed31 RDI: 000000000002ed32 RBP: ffffffff8bfede40 R08: ffffffff8157cc12 R09: fffffbfff1bf9650 R10: dffffc0000000000 R11: fffffbfff1bf9650 R12: 0000000000000001 R13: ffffffff8bfedd58 R14: dffffc0000000000 R15: ffff88805f7d8880 FS: 00007f327e7906c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007facb9302542 CR3: 000000001f4e8000 CR4: 0000000000350ef0 Call Trace: debug_object_activate+0x357/0x510 lib/debugobjects.c:732 debug_rcu_head_queue kernel/rcu/rcu.h:227 [inline] __call_rcu_common kernel/rcu/tree.c:2719 [inline] call_rcu+0x97/0xa70 kernel/rcu/tree.c:2838 put_super fs/super.c:424 [inline] bdev_super_lock+0x1ea/0x360 fs/super.c:1384 fs_bdev_sync+0x17/0x50 fs/super.c:1419 blkdev_flushbuf block/ioctl.c:380 [inline] blkdev_common_ioctl+0x88e/0x2880 block/ioctl.c:512 blkdev_ioctl+0x532/0x740 block/ioctl.c:634 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:904 [inline] __se_sys_ioctl+0xfe/0x170 fs/ioctl.c:890 do_syscall_64+0xfd/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f327da7dda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f327e7900c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f327dbac050 RCX: 00007f327da7dda9 RDX: 0000000000000000 RSI: 0000000000001261 RDI: 0000000000000003 RBP: 00007f327daca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f327dbac050 R15: 00007ffd57eb0408