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ODEBUG: free active (active state 0) object: ffff8881970dc890 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/25219
Modules linked in:
CPU: 0 UID: 0 PID: 25219 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 4f 77 fd 48 8b 44 24 20 4c 8b 4d 00 4c 89 ef 48 c7 c6 c0 b6 27 8c 48 c7 c2 40 bc 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: ffffffff8a958c90 RBX: ffffffff9a4fb2b0 RCX: 0000000000000000
RDX: ffffffff8c27bc40 RSI: ffffffff8c27b6c0 RDI: ffffffff901c5080
RBP: ffffffff8bcf3c40 R08: ffff8881970dc890 R09: ffffffff8bcf4f60
R10: dffffc0000000000 R11: ffffffff81b1e280 R12: ffff8881970dca00
R13: ffffffff901c5080 R14: ffff8881970dc000 R15: ffff8881970dc890
FS:  0000000000000000(0000) GS:ffff88818de64000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007febf9d19440 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:smp_call_function_many_cond+0xce5/0x12c0
Code: 45 8b 2c 24 44 89 ee 83 e6 01 31 ff e8 24 e6 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 cf e1 0b 00 eb 38 f3 90 <42> 0f b6 04 2b 84 c0 75 11 41 f7 04 24 01 00 00 00 74 1e e8 b3 e1
RSP: 0018:ffffc90007577680 EFLAGS: 00000293
RAX: ffffffff81b9b7cd RBX: 1ffff110478c812d RCX: ffff8881a6489d40
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900075777c0 R08: ffffffff901190b7 R09: 1ffffffff2023216
R10: dffffc0000000000 R11: fffffbfff2023217 R12: ffff88823c640968
R13: dffffc0000000000 R14: ffff88812103bf80 R15: 0000000000000001
 on_each_cpu_cond_mask+0x3f/0x80
 flush_tlb_mm_range+0x5c3/0x10c0
 tlb_flush_mmu+0x1af/0xa30
 tlb_finish_mmu+0xf9/0x230
 free_ldt_pgtables+0x19d/0x350
 exit_mmap+0x1af/0xa10
 __mmput+0x118/0x430
 exit_mm+0x168/0x220
 do_exit+0x62e/0x2320
 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: 0033:0x7febf9dd7a90
Code: Unable to access opcode bytes at 0x7febf9dd7a66.
RSP: 002b:00007fff007e57d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007febf9ec8860 RCX: 00007febf9dd7a90
RDX: 00000000000000e7 RSI: 000000000000003c RDI: 0000000000000001
RBP: 00007febf9ec8860 R08: 00007fff007e5650 R09: 00007fff007e5730
R10: 00007fff007e5690 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007febf9ecc658 R15: 0000000000000001
 </TASK>
