------------[ cut here ]------------
WARNING: CPU: 2 PID: 3634 at net/core/skbuff.c:5295 skb_try_coalesce+0x1235/0x1560 net/core/skbuff.c:5295
Modules linked in:
CPU: 2 PID: 3634 Comm: sshd Not tainted 5.17.0-rc8-syzkaller-00072-g97e9c8eb4bb1 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:skb_try_coalesce+0x1235/0x1560 net/core/skbuff.c:5295
Code: bf 01 00 00 00 0f b7 c0 89 c6 89 44 24 20 e8 92 47 4f fa 8b 44 24 20 83 e8 01 0f 85 e5 f0 ff ff e9 87 f4 ff ff e8 fb 43 4f fa <0f> 0b e9 06 f9 ff ff e8 7f bd 96 fa e9 69 f0 ff ff e8 65 bd 96 fa
RSP: 0018:ffffc90000dc75b8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 00000000ffffff70 RCX: 0000000000000000
RDX: ffff8880173b0000 RSI: ffffffff87297c35 RDI: 0000000000000003
RBP: ffff888020141180 R08: 00000000ffffff70 R09: 0000000000000000
R10: ffffffff87297539 R11: 0000000000000000 R12: ffff888020141400
R13: ffff888029b80ac0 R14: ffff888028091ac0 R15: 00000000000000f0
FS:  00007fccd5b58800(0000) GS:ffff88802cc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000058134404 CR3: 000000001eceb000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 tcp_try_coalesce net/ipv4/tcp_input.c:4651 [inline]
 tcp_try_coalesce+0x393/0x920 net/ipv4/tcp_input.c:4630
 tcp_queue_rcv+0x8a/0x6e0 net/ipv4/tcp_input.c:4914
 tcp_data_queue+0x11fd/0x4bb0 net/ipv4/tcp_input.c:5025
 tcp_rcv_established+0x81e/0x1ff0 net/ipv4/tcp_input.c:5947
 tcp_v4_do_rcv+0x65e/0x980 net/ipv4/tcp_ipv4.c:1719
 sk_backlog_rcv include/net/sock.h:1037 [inline]
 __release_sock+0x134/0x3b0 net/core/sock.c:2779
 release_sock+0x54/0x1b0 net/core/sock.c:3311
 tcp_recvmsg+0x142/0x610 net/ipv4/tcp.c:2576
 inet_recvmsg+0x11b/0x5e0 net/ipv4/af_inet.c:850
 sock_recvmsg_nosec net/socket.c:948 [inline]
 sock_recvmsg net/socket.c:966 [inline]
 sock_recvmsg net/socket.c:962 [inline]
 sock_read_iter+0x33c/0x470 net/socket.c:1039
 call_read_iter include/linux/fs.h:2068 [inline]
 new_sync_read+0x5c2/0x6e0 fs/read_write.c:400
 vfs_read+0x35c/0x600 fs/read_write.c:481
 ksys_read+0x1ee/0x250 fs/read_write.c:619
 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: 0033:0x7fccd5ca88fe
Code: c0 e9 e6 fe ff ff 50 48 8d 3d 0e c7 09 00 e8 c9 cf 01 00 66 0f 1f 84 00 00 00 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28
RSP: 002b:00007ffed9febdf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fccd5ca88fe
RDX: 0000000000004000 RSI: 00007ffed9febe18 RDI: 0000000000000007
RBP: 00005587f8dfada0 R08: 00005587f8de5bf0 R09: 00007ffed9ff5080
R10: 00007ffed9ff50f0 R11: 0000000000000246 R12: 00005587f8df9fa0
R13: 00007fccd5b586a0 R14: 00005587f8de5bf0 R15: 00005587f8dfc530
 </TASK>