------------[ cut here ]------------ WARNING: CPU: 1 PID: 20558 at net/ipv4/route.c:1245 kfree_skb include/linux/skbuff.h:1115 [inline] WARNING: CPU: 1 PID: 20558 at net/ipv4/route.c:1245 ip_rt_bug+0x24/0x130 net/ipv4/route.c:1244 Modules linked in: CPU: 1 PID: 20558 Comm: syz-executor.0 Not tainted 5.17.0-rc2-next-20220131-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ip_rt_bug+0x24/0x130 net/ipv4/route.c:1245 Code: 01 0f 1f 44 00 00 55 48 89 d5 53 48 83 ec 08 e8 82 28 bc f9 66 90 e8 7b 28 bc f9 e8 76 28 bc f9 31 f6 48 89 ef e8 bc 83 7d ff <0f> 0b 48 83 c4 08 31 c0 5b 5d c3 e8 5c 28 bc f9 48 8d 7d 10 48 b8 RSP: 0018:ffffc90014ef7158 EFLAGS: 00010216 RAX: 000000000000c142 RBX: ffff888037d0b480 RCX: ffffc9000ecee000 RDX: 0000000000040000 RSI: ffffffff87bc7934 RDI: 0000000000000000 RBP: ffff888022b39a00 R08: 0000000000000000 R09: ffffffff902039d7 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88802d7d3400 R13: ffff888022b39a00 R14: 0000000000000000 R15: ffff888022b39a58 FS: 00007f540fc77700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f540fc77718 CR3: 000000003cd09000 CR4: 00000000003506e0 Call Trace: dst_output include/net/dst.h:451 [inline] ip_local_out net/ipv4/ip_output.c:126 [inline] ip_send_skb net/ipv4/ip_output.c:1570 [inline] ip_push_pending_frames+0x125/0x2b0 net/ipv4/ip_output.c:1590 icmp_push_reply+0x2bc/0x3e0 net/ipv4/icmp.c:384 __icmp_send+0xb97/0x1400 net/ipv4/icmp.c:760 icmp_send include/net/icmp.h:43 [inline] ip_fragment.constprop.0+0x1ea/0x240 net/ipv4/ip_output.c:587 ip_finish_output_gso net/ipv4/ip_output.c:279 [inline] __ip_finish_output net/ipv4/ip_output.c:301 [inline] __ip_finish_output+0x4a0/0x650 net/ipv4/ip_output.c:288 ip_finish_output+0x32/0x280 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip_output+0x196/0x310 net/ipv4/ip_output.c:430 dst_output include/net/dst.h:451 [inline] ip_local_out net/ipv4/ip_output.c:126 [inline] __ip_queue_xmit+0x8fe/0x1bb0 net/ipv4/ip_output.c:532 __tcp_transmit_skb+0x187d/0x3810 net/ipv4/tcp_output.c:1402 tcp_transmit_skb net/ipv4/tcp_output.c:1420 [inline] tcp_write_xmit+0xd91/0x5f70 net/ipv4/tcp_output.c:2680 __tcp_push_pending_frames+0xaa/0x390 net/ipv4/tcp_output.c:2864 do_tcp_sendpages+0x18bc/0x2430 net/ipv4/tcp.c:1056 tcp_sendpage_locked net/ipv4/tcp.c:1103 [inline] tcp_sendpage_locked net/ipv4/tcp.c:1095 [inline] tcp_sendpage+0x80/0xd0 net/ipv4/tcp.c:1113 inet_sendpage+0xd0/0x140 net/ipv4/af_inet.c:833 kernel_sendpage.part.0+0x1ff/0x7b0 net/socket.c:3492 kernel_sendpage net/socket.c:3489 [inline] sock_sendpage+0xe5/0x140 net/socket.c:1007 pipe_to_sendpage+0x2ad/0x380 fs/splice.c:364 splice_from_pipe_feed fs/splice.c:418 [inline] __splice_from_pipe+0x43e/0x8a0 fs/splice.c:562 splice_from_pipe fs/splice.c:597 [inline] generic_splice_sendpage+0xd4/0x140 fs/splice.c:746 do_splice_from fs/splice.c:767 [inline] do_splice+0xb7e/0x1960 fs/splice.c:1079 __do_splice+0x134/0x250 fs/splice.c:1144 __do_sys_splice fs/splice.c:1350 [inline] __se_sys_splice fs/splice.c:1332 [inline] __x64_sys_splice+0x198/0x250 fs/splice.c:1332 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f5410d23059 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f540fc77168 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 00007f5410e36030 RCX: 00007f5410d23059 RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f5410d7d08d R08: 0000000000010004 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffbd4c577f R14: 00007f540fc77300 R15: 0000000000022000