------------[ cut here ]------------
refcount_t: decrement hit 0; leaking memory.
WARNING: CPU: 0 PID: 13 at lib/refcount.c:31 refcount_warn_saturate+0xbf/0x1e0 lib/refcount.c:31
Modules linked in:
CPU: 0 PID: 13 Comm: ksoftirqd/0 Not tainted 5.16.0-rc1-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 3a fb a1 09 31 ff 89 de e8 bd f6 9c fd 84 db 75 e0 e8 d4 f2 9c fd 48 c7 c7 a0 d2 04 8a c6 05 1a fb a1 09 01 e8 7b fb 32 05 <0f> 0b eb c4 e8 b8 f2 9c fd 0f b6 1d 09 fb a1 09 31 ff 89 de e8 88
RSP: 0018:ffffc90000d27cb8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888011910000 RSI: ffffffff815f5aa8 RDI: fffff520001a4f89
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815ef87e R11: 0000000000000000 R12: ffff88807e722000
R13: ffff88807e7225b0 R14: 0000000000000000 R15: ffff888078da9e88
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e327000 CR3: 000000003503f000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __refcount_dec include/linux/refcount.h:344 [inline]
 refcount_dec include/linux/refcount.h:359 [inline]
 dev_put include/linux/netdevice.h:4166 [inline]
 fib_nh_common_release+0x2e5/0x330 net/ipv4/fib_semantics.c:211
 fib6_info_destroy_rcu+0x187/0x210 net/ipv6/ip6_fib.c:175
 rcu_do_batch kernel/rcu/tree.c:2506 [inline]
 rcu_core+0x7ab/0x1470 kernel/rcu/tree.c:2741
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558
 run_ksoftirqd kernel/softirq.c:920 [inline]
 run_ksoftirqd+0x2d/0x60 kernel/softirq.c:912
 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>