------------[ cut here ]------------
WARNING: CPU: 0 PID: 5494 at kernel/softirq.c:387 __local_bh_enable_ip+0x180/0x1c0 kernel/softirq.c:387
Modules linked in:
CPU: 0 UID: 0 PID: 5494 Comm: krxrpcio/7001 Not tainted 6.16.0-rc5-syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__local_bh_enable_ip+0x180/0x1c0 kernel/softirq.c:387
Code: 48 3b 44 24 48 75 57 48 8d 65 e0 5b 41 5c 41 5e 41 5f 5d e9 82 41 ec 09 cc 90 0f 0b 90 e9 f9 fe ff ff e8 53 00 00 00 eb 9f 90 <0f> 0b 90 e9 24 ff ff ff 48 c7 c1 30 17 a2 8f 80 e1 07 80 c1 03 38
RSP: 0018:ffffc900023af4c0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000201 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff89de65e3
RBP: ffffc900023af548 R08: ffff88801fc3bf03 R09: 1ffff11003f877e0
R10: dffffc0000000000 R11: ffffed1003f877e1 R12: ffff88801fc3bf00
R13: ffff88804434e570 R14: dffffc0000000000 R15: 1ffff92000475e98
FS:  0000000000000000(0000) GS:ffff88808d21d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff48a5b7bac CR3: 00000000330cd000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 spin_unlock_bh include/linux/spinlock.h:396 [inline]
 rt_add_uncached_list net/ipv4/route.c:1526 [inline]
 rt_set_nexthop+0x693/0xa80 net/ipv4/route.c:-1
 __mkroute_output net/ipv4/route.c:2669 [inline]
 ip_route_output_key_hash_rcu+0x18f6/0x23a0 net/ipv4/route.c:2864
 ip_route_output_key_hash+0x1b9/0x2e0 net/ipv4/route.c:2694
 __ip_route_output_key include/net/route.h:169 [inline]
 ip_route_output_flow+0x2a/0x150 net/ipv4/route.c:2921
 ip_route_output_ports include/net/route.h:213 [inline]
 rxrpc_assess_MTU_size net/rxrpc/peer_object.c:174 [inline]
 rxrpc_init_peer+0x50a/0xc60 net/rxrpc/peer_object.c:281
 rxrpc_new_incoming_peer+0x281/0x5a0 net/rxrpc/peer_object.c:325
 rxrpc_alloc_incoming_call net/rxrpc/call_accept.c:284 [inline]
 rxrpc_new_incoming_call+0x612/0x14f0 net/rxrpc/call_accept.c:377
 rxrpc_input_packet net/rxrpc/io_thread.c:310 [inline]
 rxrpc_io_thread+0x18b2/0x2cd0 net/rxrpc/io_thread.c:482
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>