greybus greybus1: 0/0:0: synchronous operation id 0x0003 of type 0x10 failed: -71 ------------[ cut here ]------------ ODEBUG: free active (active state 0) object: ffff88805c13c6f0 object type: timer_list hint: gb_operation_timeout+0x0/0x110 drivers/greybus/operation.c:1265 WARNING: lib/debugobjects.c:632 at debug_print_object+0xec/0x230 lib/debugobjects.c:629, CPU#1: kworker/u8:0/12 Modules linked in: CPU: 1 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 Workqueue: greybus1:svc gb_svc_process_deferred_request RIP: 0010:debug_print_object+0x18a/0x230 lib/debugobjects.c:629 Code: f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 3d e8 3d fd 4d 8b 0f 4c 89 ef 48 8b 74 24 08 48 89 ea 44 89 e1 4d 89 f0 ff 34 24 <67> 48 0f b9 3a 48 83 c4 08 ff 05 c3 91 bc 0c 48 83 c4 10 5b 41 5c RSP: 0018:ffffc900001177e0 EFLAGS: 00010246 RAX: 1ffffffff185f41c RBX: dffffc0000000000 RCX: 0000000000000000 RDX: ffffffff8c8fc940 RSI: ffffffff8c8fc3c0 RDI: ffffffff91c881b0 RBP: ffffffff8c8fc940 R08: ffff88805c13c6f0 R09: ffffffff8c2fb440 R10: dffffc0000000000 R11: ffffffff81b4d3d0 R12: 0000000000000000 R13: ffffffff91c881b0 R14: ffff88805c13c6f0 R15: ffffffff8c2fa0e0 FS: 0000000000000000(0000) GS:ffff8881234f7000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f945f3ebc40 CR3: 0000000074e80000 CR4: 00000000003526f0 Call Trace: __debug_check_no_obj_freed lib/debugobjects.c:1171 [inline] debug_check_no_obj_freed+0x2e3/0x450 lib/debugobjects.c:1201 slab_free_hook mm/slub.c:2711 [inline] slab_free mm/slub.c:6630 [inline] kmem_cache_free+0xfd/0x650 mm/slub.c:6757 gb_operation_sync_timeout+0x1c7/0x270 drivers/greybus/operation.c:1172 gb_operation_sync include/linux/greybus/operation.h:203 [inline] gb_svc_intf_set_power_mode drivers/greybus/svc.c:584 [inline] gb_svc_process_hello_deferred drivers/greybus/svc.c:936 [inline] gb_svc_process_deferred_request+0x5f3/0x1150 drivers/greybus/svc.c:1102 process_one_work kernel/workqueue.c:3495 [inline] process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---------------- Code disassembly (best guess): 0: f8 clc 1: 48 c1 e8 03 shr $0x3,%rax 5: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) 9: 74 08 je 0x13 b: 4c 89 ff mov %r15,%rdi e: e8 3d e8 3d fd call 0xfd3de850 13: 4d 8b 0f mov (%r15),%r9 16: 4c 89 ef mov %r13,%rdi 19: 48 8b 74 24 08 mov 0x8(%rsp),%rsi 1e: 48 89 ea mov %rbp,%rdx 21: 44 89 e1 mov %r12d,%ecx 24: 4d 89 f0 mov %r14,%r8 27: ff 34 24 push (%rsp) * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 48 83 c4 08 add $0x8,%rsp 33: ff 05 c3 91 bc 0c incl 0xcbc91c3(%rip) # 0xcbc91fc 39: 48 83 c4 10 add $0x10,%rsp 3d: 5b pop %rbx 3e: 41 5c pop %r12