------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff8881ab662090 object type: timer_list hint: rose_t0timer_expiry+0x0/0x350
WARNING: lib/debugobjects.c:615 at debug_check_no_obj_freed+0x405/0x550, CPU#1: syz-executor/5826
Modules linked in:
CPU: 1 UID: 0 PID: 5826 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 47 4a 87 fd 48 8b 44 24 20 4c 8b 4d 00 4c 89 ef 48 c7 c6 c0 3e e7 8b 48 c7 c2 40 44 e7 8b 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:ffffc90000a08b70 EFLAGS: 00010246
RAX: ffffffff8a65e3b0 RBX: ffffffff99fea528 RCX: 0000000000000000
RDX: ffffffff8be74440 RSI: ffffffff8be73ec0 RDI: ffffffff8fd935b0
RBP: ffffffff8b8f3e40 R08: ffff8881ab662090 R09: ffffffff8b8f5160
R10: dffffc0000000000 R11: ffffffff81af61b0 R12: ffff8881ab662200
R13: ffffffff8fd935b0 R14: ffff8881ab662000 R15: ffff8881ab662090
FS:  000055558ff85500(0000) GS:ffff8882a9929000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8ef1ddfd58 CR3: 0000000168e54000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 kfree+0x139/0x650
 rose_timer_expiry+0x4cb/0x600
 call_timer_fn+0x192/0x5a0
 __run_timer_base+0x652/0x8b0
 run_timer_softirq+0xb7/0x170
 handle_softirqs+0x22a/0x7c0
 __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+0x221/0x330
Code: ff ff ff e8 51 83 d9 09 f7 44 24 08 00 02 00 00 0f 84 3a ff ff ff 65 48 8b 05 3b 54 30 11 48 3b 44 24 58 75 33 fb 48 83 c4 60 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 88 ff 32
RSP: 0018:ffffc90004827418 EFLAGS: 00000286
RAX: 48a00c6c7fba1d00 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 00000000bdc0e1de RSI: ffffffff8dd3d02b RDI: ffffffff8be73880
RBP: ffffffff8174c0e5 R08: ffffffff8174c0e5 R09: ffffffff8e35a320
R10: ffffc90004827578 R11: ffffffff81ae4560 R12: 0000000000000002
R13: ffffffff8e35a320 R14: 0000000000000000 R15: 0000000000000246
 unwind_next_frame+0xc2/0x23c0
 arch_stack_walk+0x11b/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5c/0x80
 kfree+0x1be/0x650
 do_ip6t_get_ctl+0xf14/0x1230
 nf_getsockopt+0x26e/0x290
 ipv6_getsockopt+0x1fd/0x2b0
 do_sock_getsockopt+0x2d3/0x3f0
 __x64_sys_getsockopt+0x1a4/0x240
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8ef1b9c4aa
Code: 48 83 ec 10 89 d2 48 63 ff 45 31 c9 6a 2a 45 31 c0 31 c9 e8 58 9a fb ff 48 83 c4 18 c3 0f 1f 00 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 e8 ff ff ff f7
RSP: 002b:00007ffe1854b118 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007ffe1854b1a0 RCX: 00007f8ef1b9c4aa
RDX: 0000000000000041 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007ffe1854b13c R09: fffffeffffffff00
R10: 00007ffe1854b1a0 R11: 0000000000000212 R12: 00007f8ef1de0a20
R13: 00007ffe1854b13c R14: 0000000000000000 R15: 00007f8ef1de1e60
 </TASK>
