------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: timer_list hint: print_daily_error_info+0x0/0x490 WARNING: CPU: 1 PID: 3642 at lib/debugobjects.c:517 debug_print_object lib/debugobjects.c:514 [inline] WARNING: CPU: 1 PID: 3642 at lib/debugobjects.c:517 __debug_check_no_obj_freed lib/debugobjects.c:978 [inline] WARNING: CPU: 1 PID: 3642 at lib/debugobjects.c:517 debug_check_no_obj_freed+0x38e/0x4e0 lib/debugobjects.c:1008 Modules linked in: CPU: 1 PID: 3642 Comm: syz-executor Not tainted 6.1.103-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 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 36 85 a4 fd 4c 8b 45 00 48 c7 c7 40 67 5d 8b 48 c7 c6 00 64 5d 8b 48 c7 c2 a0 68 5d 8b 8b 0c 24 49 89 d9 e8 d2 f9 14 fd <0f> 0b ff 05 d2 61 5c 0a 48 83 c5 30 48 89 e8 48 c1 e8 03 48 b9 00 RSP: 0018:ffffc90003d4fa80 EFLAGS: 00010246 RAX: 559100343bad2d00 RBX: ffffffff824ab1a0 RCX: ffff8880269f1dc0 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffffff8b0dd9a0 R08: ffffffff8152940e R09: fffff520007a9eb1 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807d998698 R13: ffffffff921abd60 R14: ffff88807d999000 R15: ffff8880272a8bb8 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fca5a2ed8fa CR3: 0000000027df6000 CR4: 00000000003506e0 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 __do_sys_exit_group kernel/exit.c:1032 [inline] __se_sys_exit_group kernel/exit.c:1030 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1030 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f8ad87779f9 Code: Unable to access opcode bytes at 0x7f8ad87779cf. RSP: 002b:00007fffa2c06f28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f8ad87e57fe RCX: 00007f8ad87779f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000010 R08: 00007fffa2c04cc6 R09: 00007fffa2c081e0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffa2c081e0 R13: 00007f8ad87e578c R14: 0000555556a894a8 R15: 00007fffa2c092a0