------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: timer_list hint: print_daily_error_info+0x0/0x480 WARNING: CPU: 0 PID: 8996 at lib/debugobjects.c:518 debug_print_object lib/debugobjects.c:515 [inline] WARNING: CPU: 0 PID: 8996 at lib/debugobjects.c:518 __debug_check_no_obj_freed lib/debugobjects.c:1045 [inline] WARNING: CPU: 0 PID: 8996 at lib/debugobjects.c:518 debug_check_no_obj_freed+0x395/0x520 lib/debugobjects.c:1075 Modules linked in: CPU: 0 PID: 8996 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 RIP: 0010:debug_print_object lib/debugobjects.c:515 [inline] RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:1045 [inline] RIP: 0010:debug_check_no_obj_freed+0x395/0x520 lib/debugobjects.c:1075 Code: e8 f0 60 b8 fd 4c 8b 45 00 48 c7 c7 20 7b df 8a 48 c7 c6 80 77 df 8a 48 c7 c2 80 7c df 8a 8b 4c 24 1c 4d 89 e9 e8 1b 78 32 fd <0f> 0b 4c 8b 6c 24 10 48 b9 00 00 00 00 00 fc ff df ff 05 4c c5 e5 RSP: 0018:ffffc90003447a80 EFLAGS: 00010246 RAX: a20888e1a2630f00 RBX: ffffffff97d07c48 RCX: ffff88802dfb9e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: ffffffff8a8df780 R08: ffffc90003447707 R09: 1ffff92000688ee0 R10: dffffc0000000000 R11: fffff52000688ee1 R12: 0000000000000001 R13: ffffffff82359fb0 R14: ffff88807d73c000 R15: ffff88807d73c728 FS: 0000000000000000(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f354c412a80 CR3: 000000007f8d4000 CR4: 00000000003506f0 DR0: ffffffffffffffca DR1: 0000000400006892 DR2: 0000000000000010 DR3: 0100000000000401 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: slab_free_hook mm/slub.c:1704 [inline] slab_free_freelist_hook+0xd2/0x1b0 mm/slub.c:1755 slab_free mm/slub.c:3687 [inline] __kmem_cache_free+0xb6/0x200 mm/slub.c:3700 generic_shutdown_super+0x130/0x340 fs/super.c:501 kill_block_super+0x7c/0xe0 fs/super.c:1481 deactivate_locked_super+0x93/0xf0 fs/super.c:332 cleanup_mnt+0x471/0x4f0 fs/namespace.c:1191 task_work_run+0x1d0/0x260 kernel/task_work.c:203 exit_task_work include/linux/task_work.h:39 [inline] do_exit+0x9d5/0x2570 kernel/exit.c:887 do_group_exit+0x229/0x2e0 kernel/exit.c:1030 __do_sys_exit_group kernel/exit.c:1041 [inline] __se_sys_exit_group kernel/exit.c:1039 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1039 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f2feed9e559 Code: Unable to access opcode bytes at 0x7f2feed9e52f. RSP: 002b:00007ffc291e8648 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f2feee34f20 RCX: 00007f2feed9e559 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000002 R08: 0000000000000000 R09: 00007f2feee34efb R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc291e9900 R13: 00007f2feee34efb R14: 0000000000078ecd R15: 00007ffc291ea9d0