------------[ cut here ]------------ ODEBUG: free active (active state 0) object: ffff88802bdea6d8 object type: timer_list hint: print_daily_error_info+0x0/0x530 fs/ext4/super.c:799 WARNING: CPU: 2 PID: 5749 at lib/debugobjects.c:514 debug_print_object+0x1a3/0x2b0 lib/debugobjects.c:514 Modules linked in: CPU: 2 PID: 5749 Comm: syz-executor Not tainted 6.10.0-rc5-syzkaller-00282-g8282d5af7be8 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:debug_print_object+0x1a3/0x2b0 lib/debugobjects.c:514 Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 54 48 8b 14 dd 80 0a 90 8b 41 56 4c 89 e6 48 c7 c7 e0 fd 8f 8b e8 5e cf c6 fc 90 <0f> 0b 90 90 58 83 05 b5 4b 5b 0b 01 48 83 c4 18 5b 5d 41 5c 41 5d RSP: 0018:ffffc900033f78c8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff81500069 RDX: ffff888027de0000 RSI: ffffffff81500076 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff8b900480 R13: ffffffff8b2f2a00 R14: ffffffff82560bc0 R15: ffffc900033f79d8 FS: 00007f1ba3dbd6c0(0000) GS:ffff88806b200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1ba31a8000 CR3: 000000003d9c4000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __debug_check_no_obj_freed lib/debugobjects.c:989 [inline] debug_check_no_obj_freed+0x4b8/0x600 lib/debugobjects.c:1019 slab_free_hook mm/slub.c:2163 [inline] slab_free mm/slub.c:4438 [inline] kfree+0x284/0x3b0 mm/slub.c:4559 ext4_free_sbi fs/ext4/super.c:4298 [inline] ext4_fill_super+0x2f29/0xace0 fs/ext4/super.c:5701 get_tree_bdev+0x36f/0x610 fs/super.c:1615 vfs_get_tree+0x8f/0x380 fs/super.c:1780 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __x64_sys_mount+0x297/0x320 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1ba307e5ea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007f1ba3dbcef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f1ba3dbcf80 RCX: 00007f1ba307e5ea RDX: 00000000200000c0 RSI: 0000000020000500 RDI: 00007f1ba3dbcf40 RBP: 00000000200000c0 R08: 00007f1ba3dbcf80 R09: 0000000000000084 R10: 0000000000000084 R11: 0000000000000246 R12: 0000000020000500 R13: 00007f1ba3dbcf40 R14: 00000000000004c2 R15: 0000000020000040