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ODEBUG: free active (active state 0) object: ffff8881b74d5490 object type: timer_list hint: rose_t0timer_expiry+0x0/0x560
WARNING: lib/debugobjects.c:632 at debug_check_no_obj_freed+0x405/0x550, CPU#1: syz-executor/11373
Modules linked in:
CPU: 1 UID: 0 PID: 11373 Comm: syz-executor 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: 0018:ffffc90000a08b68 EFLAGS: 00010246
RAX: ffffffff8a9921b0 RBX: ffffffff9a483f40 RCX: 0000000000000000
RDX: ffffffff8c27e0c0 RSI: ffffffff8c27db40 RDI: ffffffff901c7dd0
RBP: ffffffff8bcf3f60 R08: ffff8881b74d5490 R09: ffffffff8bcf5280
R10: dffffc0000000000 R11: ffffffff81b1f310 R12: ffff8881b74d5600
R13: ffffffff901c7dd0 R14: ffff8881b74d5000 R15: ffff8881b74d5490
FS:  000055556ca5a500(0000) GS:ffff8882a944e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff76cb456b8 CR3: 00000001b144c000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 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+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lock_acquire+0x20b/0x2e0
Code: e9 30 ff ff ff e8 65 39 11 0a f7 c3 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 e1 96 7b 11 48 3b 44 24 30 75 33 fb 48 83 c4 38 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 46 1f 14 0a cc 48 8d 3d 4e 81 73
RSP: 0018:ffffc9000b6ef250 EFLAGS: 00000296
RAX: 782be466057ce200 RBX: 0000000000000246 RCX: 0000000080000003
RDX: 0000000022db6d2d RSI: ffffffff8e19f503 RDI: ffffffff8c27d500
RBP: 0000000000000000 R08: ffffffff823c545a R09: ffffffff8e75e660
R10: dffffc0000000000 R11: fffff94000d73981 R12: 0000000000000002
R13: ffffffff8e75e660 R14: 0000000000000000 R15: 0000000000000000
 pfn_valid+0xd6/0x480
 page_table_check_set+0x25/0x610
 copy_pmd_range+0x4f5a/0x8050
 copy_page_range+0xbe8/0x11f0
 dup_mmap+0xf40/0x1d90
 copy_mm+0x13b/0x4a0
 copy_process+0x18b6/0x3cd0
 kernel_clone+0x248/0x8e0
 __x64_sys_clone+0x1b6/0x230
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff76bdc5292
Code: 89 e7 e8 71 8b f7 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 66 89 c5 85 c0 75 3b 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffcfa8f87b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffcfa8f87b0 RCX: 00007ff76bdc5292
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffcfa8f893c R08: 0000000000000000 R09: 0000000000000001
R10: 000055556ca5a7d0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 00000000000e36e5 R15: 00007ffcfa8f8990
 </TASK>
