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ODEBUG: free active (active state 0) object: ffff888168b7e890 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: syz.0.15961/10186
Modules linked in:
CPU: 0 UID: 0 PID: 10186 Comm: syz.0.15961 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 07 36 77 fd 48 8b 44 24 20 4c 8b 4d 00 4c 89 ef 48 c7 c6 40 b8 27 8c 48 c7 c2 c0 bd 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:ffffc90000007b68 EFLAGS: 00010246
RAX: ffffffff8a967230 RBX: ffffffff9a49b558 RCX: 0000000000000000
RDX: ffffffff8c27bdc0 RSI: ffffffff8c27b840 RDI: ffffffff901c02c0
RBP: ffffffff8bcf3ca0 R08: ffff888168b7e890 R09: ffffffff8bcf4fc0
R10: dffffc0000000000 R11: ffffffff81b1e270 R12: ffff888168b7ea00
R13: ffffffff901c02c0 R14: ffff888168b7e000 R15: ffff888168b7e890
FS:  0000555577a06500(0000) GS:ffff88818de65000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2896c6 CR3: 000000000e54c000 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_release+0x2d7/0x3d0
Code: 3f 7a 11 00 00 00 00 eb b5 e8 25 1c 0d 0a f7 c3 00 02 00 00 74 b9 65 48 8b 05 a5 f9 79 11 48 3b 44 24 28 75 44 fb 48 83 c4 30 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 0a 02 10 0a cc 48 8d 3d a2 e1 72
RSP: 0018:ffffc90003517558 EFLAGS: 00000282
RAX: 6ec1968e4110bf00 RBX: 0000000000000202 RCX: 0000000080000001
RDX: 0000000000000003 RSI: ffffffff8e169a62 RDI: ffffffff8c27b200
RBP: ffff88810c0c8bd0 R08: ffff888162d65acf R09: 1ffff1102c5acb59
R10: dffffc0000000000 R11: ffffed102c5acb5a R12: 0000000000000003
R13: 0000000000000003 R14: ffffffff8e7602e0 R15: ffff88810c0c8000
 page_table_check_clear+0x4b8/0x5f0
 unmap_page_range+0x33b3/0x48f0
 unmap_vmas+0x48f/0x6a0
 exit_mmap+0x280/0xa10
 __mmput+0x118/0x430
 exit_mm+0x168/0x220
 do_exit+0x6a2/0x23c0
 do_group_exit+0x21b/0x2d0
 __x64_sys_exit_group+0x3f/0x40
 x64_sys_call+0x221a/0x2240
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f53b6f9c799
Code: Unable to access opcode bytes at 0x7f53b6f9c76f.
RSP: 002b:00007ffd2984f858 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f53b6f9c799
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffd2984f8bc R08: 0000000000000000 R09: 00000000000927c0
R10: 0000000000000001 R11: 0000000000000246 R12: 000000000000147e
R13: 00000000000927c0 R14: 00000000000a6471 R15: 00007ffd2984f910
 </TASK>
