------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: timer_list hint: gb_operation_timeout+0x0/0x100
WARNING: CPU: 0 PID: 47 at lib/debugobjects.c:518 debug_print_object lib/debugobjects.c:515 [inline]
WARNING: CPU: 0 PID: 47 at lib/debugobjects.c:518 __debug_check_no_obj_freed lib/debugobjects.c:1045 [inline]
WARNING: CPU: 0 PID: 47 at lib/debugobjects.c:518 debug_check_no_obj_freed+0x395/0x520 lib/debugobjects.c:1075
Modules linked in:
CPU: 0 PID: 47 Comm: kworker/u4:3 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: greybus1:0 gb_operation_work
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:ffffc90000b87908 EFLAGS: 00010246
RAX: 2a4ab63d98fb9200 RBX: ffffffff97cb7b30 RCX: ffff88801e6f3c00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffffff8a8df780 R08: ffffc90000b87607 R09: 1ffff92000170ec0
R10: dffffc0000000000 R11: fffff52000170ec1 R12: 0000000000000001
R13: ffffffff87d21a60 R14: ffff888077516000 R15: ffff8880775166f0
FS:  0000000000000000(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005582db83cef8 CR3: 000000002a791000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 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+0xf7/0x2a0 mm/slub.c:3709
 gb_operation_sync_timeout+0x2d3/0x360 drivers/greybus/operation.c:1171
 gb_operation_sync include/linux/greybus/operation.h:203 [inline]
 gb_svc_pwrmon_rail_count_get drivers/greybus/svc.c:135 [inline]
 gb_svc_pwrmon_debugfs_init drivers/greybus/svc.c:770 [inline]
 gb_svc_debugfs_init drivers/greybus/svc.c:827 [inline]
 gb_svc_hello drivers/greybus/svc.c:875 [inline]
 gb_svc_request_handler+0x864/0x1160 drivers/greybus/svc.c:1276
 gb_operation_request_handle drivers/greybus/operation.c:243 [inline]
 gb_operation_work+0xdc/0x940 drivers/greybus/operation.c:280
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>