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ODEBUG: free active (active state 0) object: ffff88811fa72090 object type: timer_list hint: rose_t0timer_expiry+0x0/0x560
WARNING: lib/debugobjects.c:632 at debug_check_no_obj_freed+0x405/0x550, CPU#0: modprobe/772
Modules linked in:
CPU: 0 UID: 0 PID: 772 Comm: modprobe Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:debug_check_no_obj_freed+0x44a/0x550
Code: 89 44 24 20 e8 f7 5a 76 fd 48 8b 44 24 20 4c 8b 4d 00 4c 89 ef 48 c7 c6 40 db 27 8c 48 c7 c2 c0 e0 27 8c 8b 0c 24 4d 89 f8 50 <67> 48 0f b9 3a 48 83 c4 08 4c 8b 6c 24 18 48 b9 00 00 00 00 00 fc
RSP: 0000:ffffc9000daefa88 EFLAGS: 00010246
RAX: ffffffff8a992230 RBX: ffffffff9a587cf8 RCX: 0000000000000000
RDX: ffffffff8c27e0c0 RSI: ffffffff8c27db40 RDI: ffffffff901c7dd0
RBP: ffffffff8bcf3f60 R08: ffff88811fa72090 R09: ffffffff8bcf5280
R10: dffffc0000000000 R11: ffffffff81b1f310 R12: ffff88811fa72200
R13: ffffffff901c7dd0 R14: ffff88811fa72000 R15: ffff88811fa72090
FS:  00007fc34b44a380(0000) GS:ffff88818de4e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc34b748000 CR3: 0000000184522000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 kfree+0x13a/0x630
 rose_timer_expiry+0x4cb/0x600
 call_timer_fn+0x192/0x640
 __run_timer_base+0x652/0x8b0
 run_timer_softirq+0xb7/0x170
 handle_softirqs+0x22a/0x870
 __irq_exit_rcu+0x5f/0x150
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0x57/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0033:0x7fc34b75de95
Code: 58 08 b8 01 00 00 00 eb 1d 48 ff 84 24 a0 00 00 00 48 8b 44 24 28 48 3b 84 24 a0 00 00 00 0f 87 1c f8 ff ff 31 c0 48 83 c4 68 <5b> 5d 41 5c 41 5d 41 5e 41 5f c3 41 57 41 56 41 55 49 89 d5 41 54
RSP: 002b:00007ffef32ceba8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 00007fc34b74b000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 00007fc34b68c230 RDI: 00007fc34b68de77
RBP: 00007fc34b68c230 R08: 0000000000000000 R09: 00007fc34b68c230
R10: 00007fc34b68de77 R11: 0000000000000001 R12: 00007fc34b6898a4
R13: 00007ffef32ceb94 R14: 00007ffef32cec58 R15: 00007fc34b68de77
 </TASK>
