------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff88811523d490 object type: timer_list hint: rose_t0timer_expiry+0x0/0x350
WARNING: lib/debugobjects.c:615 at debug_check_no_obj_freed+0x405/0x550, CPU#0: syz.2.18559/2973
Modules linked in:
CPU: 0 UID: 0 PID: 2973 Comm: syz.2.18559 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:ffffc90000007b70 EFLAGS: 00010246
RAX: ffffffff8a65e8c0 RBX: ffffffff99fb58d8 RCX: 0000000000000000
RDX: ffffffff8be74440 RSI: ffffffff8be73ec0 RDI: ffffffff8fd936b0
RBP: ffffffff8b8f3e40 R08: ffff88811523d490 R09: ffffffff8b8f5160
R10: dffffc0000000000 R11: ffffffff81af61b0 R12: ffff88811523d600
R13: ffffffff8fd936b0 R14: ffff88811523d000 R15: ffff88811523d490
FS:  00007fd6011396c0(0000) GS:ffff88818e329000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000027c22000 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:ipoib_netdev_event+0x0/0xf0
Code: 02 cc 44 89 f1 80 e1 07 fe c1 38 c1 7c d2 4c 89 f7 e8 b4 50 98 f9 eb c8 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 41 57 41 56 41 54 53 48 89 d3 49 89 f6 49 bc 00 00 00
RSP: 0018:ffffc90007faead0 EFLAGS: 00000246
RAX: ffffffff818fa5a8 RBX: ffffffff8f576560 RCX: 0000000000080000
RDX: ffffc90007faeba0 RSI: 000000000000001b RDI: ffffffff8f5484c0
RBP: 00000000ffffffd5 R08: ffffffff8fced877 R09: 1ffffffff1f9db0e
R10: dffffc0000000000 R11: ffffffff88912870 R12: ffffffff8f5484c0
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffffffff1ea9098
 notifier_call_chain+0x19d/0x3a0
 __netdev_upper_dev_link+0x2c9/0x570
 netdev_upper_dev_link+0xb0/0x100
 macvlan_common_newlink+0x12f2/0x1a30
 rtnl_newlink_create+0x329/0xb70
 rtnl_newlink+0x1666/0x1be0
 rtnetlink_rcv_msg+0x7d5/0xbe0
 netlink_rcv_skb+0x232/0x4b0
 netlink_unicast+0x80f/0x9b0
 netlink_sendmsg+0x813/0xb40
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x4d7/0x810
 ___sys_sendmsg+0x2a5/0x360
 __x64_sys_sendmsg+0x1bd/0x2a0
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd60019acb9
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:00007fd601139028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fd600415fa0 RCX: 00007fd60019acb9
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 000000000000000d
RBP: 00007fd600208bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd600416038 R14: 00007fd600415fa0 R15: 00007fffcd4c57e8
 </TASK>
