------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: timer_list hint: print_daily_error_info+0x0/0x490 WARNING: CPU: 0 PID: 9095 at lib/debugobjects.c:517 debug_print_object lib/debugobjects.c:514 [inline] WARNING: CPU: 0 PID: 9095 at lib/debugobjects.c:517 __debug_check_no_obj_freed lib/debugobjects.c:978 [inline] WARNING: CPU: 0 PID: 9095 at lib/debugobjects.c:517 debug_check_no_obj_freed+0x38e/0x4e0 lib/debugobjects.c:1008 Modules linked in: CPU: 0 PID: 9095 Comm: syz.2.926 Not tainted 6.1.106-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:debug_print_object lib/debugobjects.c:514 [inline] RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:978 [inline] RIP: 0010:debug_check_no_obj_freed+0x38e/0x4e0 lib/debugobjects.c:1008 Code: ef e8 f6 36 a4 fd 4c 8b 45 00 48 c7 c7 20 6c 5d 8b 48 c7 c6 e0 68 5d 8b 48 c7 c2 80 6d 5d 8b 8b 0c 24 49 89 d9 e8 82 a9 14 fd <0f> 0b ff 05 c2 20 5c 0a 48 83 c5 30 48 89 e8 48 c1 e8 03 48 b9 00 RSP: 0018:ffffc900045bf6c0 EFLAGS: 00010246 RAX: 89b64c95afe8d800 RBX: ffffffff824ab6d0 RCX: ffff88801fe99dc0 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffffff8b0dd980 R08: ffffffff8152940e R09: fffff520008b7e39 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888058e00698 R13: ffffffff921d5118 R14: ffff888058e01000 R15: ffff88805a2b0330 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f82cbd73f98 CR3: 000000007e727000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: slab_free_hook mm/slub.c:1699 [inline] slab_free_freelist_hook mm/slub.c:1750 [inline] slab_free mm/slub.c:3661 [inline] __kmem_cache_free+0x205/0x3c0 mm/slub.c:3674 generic_shutdown_super+0x130/0x340 fs/super.c:501 kill_block_super+0x7a/0xe0 fs/super.c:1470 deactivate_locked_super+0xa0/0x110 fs/super.c:332 cleanup_mnt+0x490/0x520 fs/namespace.c:1186 task_work_run+0x246/0x300 kernel/task_work.c:203 exit_task_work include/linux/task_work.h:39 [inline] do_exit+0xa73/0x26a0 kernel/exit.c:871 do_group_exit+0x202/0x2b0 kernel/exit.c:1021 get_signal+0x16f7/0x17d0 kernel/signal.c:2870 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:174 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303 ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:288 RIP: 0033:0x7fd68f579ef9 Code: Unable to access opcode bytes at 0x7fd68f579ecf. RSP: 002b:00007fd69041ffe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: 0000000000000000 RBX: 00007fd68f715f80 RCX: 00007fd68f579ef9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fd68f5e793e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fd68f715f80 R15: 00007fff0ecbed88