syzbot

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ODEBUG: free active (active state 0) object type: timer_list hint: print_daily_error_info+0x0/0x490
WARNING: CPU: 0 PID: 4250 at lib/debugobjects.c:518 debug_print_object lib/debugobjects.c:515 [inline]
WARNING: CPU: 0 PID: 4250 at lib/debugobjects.c:518 __debug_check_no_obj_freed lib/debugobjects.c:979 [inline]
WARNING: CPU: 0 PID: 4250 at lib/debugobjects.c:518 debug_check_no_obj_freed+0x38e/0x4e0 lib/debugobjects.c:1009
Modules linked in:
CPU: 0 PID: 4250 Comm: syz-executor Not tainted 6.1.134-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:debug_print_object lib/debugobjects.c:515 [inline]
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:979 [inline]
RIP: 0010:debug_check_no_obj_freed+0x38e/0x4e0 lib/debugobjects.c:1009
Code: ef e8 36 31 99 fd 4c 8b 45 00 48 c7 c7 c0 7c 5f 8b 48 c7 c6 80 79 5f 8b 48 c7 c2 20 7e 5f 8b 8b 0c 24 49 89 d9 e8 c2 e4 09 fd <0f> 0b ff 05 32 18 58 0a 48 83 c5 30 48 89 e8 48 c1 e8 03 48 b9 00
RSP: 0018:ffffc90003c27a80 EFLAGS: 00010246
RAX: 6955df65612f5500 RBX: ffffffff824aabd0 RCX: ffff888030f43b80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffffff8b0dfba0 R08: ffffffff8152c26e R09: fffff52000784eb1
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888079c72698
R13: ffffffff975e6bc0 R14: ffff888079c73000 R15: ffff888058ac2f70
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc638ccd18 CR3: 0000000048609000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 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+0xa6e/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: 0033:0x7f3af0f8d169
Code: Unable to access opcode bytes at 0x7f3af0f8d13f.
RSP: 002b:00007ffd34038f88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f3af100e800 RCX: 00007f3af0f8d169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000027 R08: 00007ffd34036d26 R09: 00007ffd3403a240
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd3403a240
R13: 00007f3af100e77c R14: 00005555869b34a8 R15: 00007ffd3403c400
 </TASK>