------------[ cut here ]------------
refcount_t: decrement hit 0; leaking memory.
WARNING: CPU: 1 PID: 8464 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0 lib/refcount.c:31
Modules linked in:
CPU: 1 PID: 8464 Comm: syz-executor.5 Not tainted 5.12.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:refcount_warn_saturate+0xbf/0x1e0 lib/refcount.c:31
Code: 1d 3e 55 e8 09 31 ff 89 de e8 bd e7 aa fd 84 db 75 e0 e8 04 e1 aa fd 48 c7 c7 a0 e8 c1 89 c6 05 1e 55 e8 09 01 e8 ce f7 fa 04 <0f> 0b eb c4 e8 e8 e0 aa fd 0f b6 1d 0d 55 e8 09 31 ff 89 de e8 88
RSP: 0018:ffffc90000dc0e10 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88801b56d4c0 RSI: ffffffff815c4d85 RDI: fffff520001b81b4
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815bdb1e R11: 0000000000000000 R12: ffff88802bb68000
R13: ffff88802bb68568 R14: ffff88801c76a9e0 R15: 0000000000000000
FS:  0000000002ef9400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005571c5a0c1e8 CR3: 000000005bc40000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __refcount_dec include/linux/refcount.h:344 [inline]
 refcount_dec include/linux/refcount.h:359 [inline]
 dev_put include/linux/netdevice.h:4135 [inline]
 in_dev_finish_destroy+0x172/0x1b0 net/ipv4/devinet.c:244
 in_dev_put include/linux/inetdevice.h:265 [inline]
 in_dev_rcu_put+0x83/0xb0 net/ipv4/devinet.c:301
 rcu_do_batch kernel/rcu/tree.c:2559 [inline]
 rcu_core+0x74a/0x12f0 kernel/rcu/tree.c:2794
 __do_softirq+0x29b/0x9f6 kernel/softirq.c:345
 invoke_softirq kernel/softirq.c:221 [inline]
 __irq_exit_rcu kernel/softirq.c:422 [inline]
 irq_exit_rcu+0x134/0x200 kernel/softirq.c:434
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:191
Code: 74 24 10 e8 0a 46 52 f8 48 89 ef e8 32 fc 52 f8 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 <e8> 23 ca 46 f8 65 8b 05 5c 94 fa 76 85 c0 74 0a 5b 5d c3 e8 90 85
RSP: 0018:ffffc900017dfc60 EFLAGS: 00000206
RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff1b8acb9
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8880b9d26340 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8179e138 R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000001 R14: ffffc900017dfde0 R15: ffff88801b56d4c0
 hrtimer_start_expires include/linux/hrtimer.h:436 [inline]
 hrtimer_sleeper_start_expires kernel/time/hrtimer.c:1817 [inline]
 do_nanosleep+0x202/0x6a0 kernel/time/hrtimer.c:1893
 hrtimer_nanosleep+0x1f9/0x4a0 kernel/time/hrtimer.c:1949
 common_nsleep+0xa2/0xc0 kernel/time/posix-timers.c:1227
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1267 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1245 [inline]
 __x64_sys_clock_nanosleep+0x2f4/0x430 kernel/time/posix-timers.c:1245
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x48a621
Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 aa e7 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 e3 e7 ff ff 48 8b 04 24 eb 97 66 2e 0f 1f
RSP: 002b:00007fff2f154440 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00000000000005c2 RCX: 000000000048a621
RDX: 00007fff2f154480 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fff2f15451c R08: 0000000000000000 R09: 00007fff2f1f3090
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 000000000007be43 R14: 0000000000000014 R15: 00007fff2f154580