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ODEBUG: free active (active state 0) object: ffff888192eb5c90 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.2.8801/6686
Modules linked in:
CPU: 1 UID: 0 PID: 6686 Comm: syz.2.8801 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 97 5a 76 fd 48 8b 44 24 20 4c 8b 4d 00 4c 89 ef 48 c7 c6 c0 db 27 8c 48 c7 c2 40 e1 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: ffffffff8a97b060 RBX: ffffffff9a580558 RCX: 0000000000000000
RDX: ffffffff8c27e140 RSI: ffffffff8c27dbc0 RDI: ffffffff901ca410
RBP: ffffffff8bcf3f60 R08: ffff888192eb5c90 R09: ffffffff8bcf5280
R10: dffffc0000000000 R11: ffffffff81b20310 R12: ffff888192eb5e00
R13: ffffffff901ca410 R14: ffff888192eb5000 R15: ffff888192eb5c90
FS:  00007f81ccd926c0(0000) GS:ffff8882a9454000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000010000 CR3: 000000002e1a2000 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:hash_netnet6_destroy+0x107/0x630
Code: 89 44 24 68 48 c7 c0 c8 28 e6 8c 48 c1 e8 03 48 89 44 24 60 48 89 5c 24 48 4c 89 74 24 40 4c 89 6c 24 78 eb 11 e8 99 93 c5 f7 <ff> c5 49 bf 00 00 00 00 00 fc ff df 48 8b 44 24 58 42 0f b6 04 38
RSP: 0018:ffffc90006f56d50 EFLAGS: 00000293
RAX: ffffffff8a002c57 RBX: ffffc9002b800008 RCX: ffff88802afdba80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000019cd5 R08: ffffffff9011deb7 R09: 1ffffffff2023bd6
R10: dffffc0000000000 R11: ffffffff8a002b50 R12: 0000000000000000
R13: ffff888116db8ac0 R14: ffffc9002b800018 R15: ffffc9002b8ce6c0
 _destroy_all_sets+0x579/0x6b0
 ip_set_destroy+0x4a8/0x810
 nfnetlink_rcv_msg+0xc00/0x12c0
 netlink_rcv_skb+0x232/0x4b0
 nfnetlink_rcv+0x2c0/0x27b0
 netlink_unicast+0x80f/0x9b0
 netlink_sendmsg+0x813/0xb40
 ____sys_sendmsg+0x972/0x9f0
 ___sys_sendmsg+0x2a5/0x360
 __x64_sys_sendmsg+0x1bd/0x2a0
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f81cbf9c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f81ccd92028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f81cc216180 RCX: 00007f81cbf9c819
RDX: 0000000020008000 RSI: 00002000000002c0 RDI: 0000000000000003
RBP: 00007f81cc032c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f81cc216218 R14: 00007f81cc216180 R15: 00007ffc1011c718
 </TASK>
