------------[ cut here ]------------
WARNING: CPU: 0 PID: 5110 at net/mptcp/subflow.c:1405 subflow_data_ready+0x3a0/0x690 net/mptcp/subflow.c:1405
Modules linked in:
CPU: 0 PID: 5110 Comm: syz-executor.3 Not tainted 6.7.0-rc2-syzkaller-00242-g090472ed9c92 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:subflow_data_ready+0x3a0/0x690 net/mptcp/subflow.c:1405
Code: 89 ee e8 a3 b6 21 f7 40 84 ed 75 21 e8 69 bb 21 f7 44 89 fe bf 07 00 00 00 e8 cc b6 21 f7 41 83 ff 07 74 09 e8 51 bb 21 f7 90 <0f> 0b 90 e8 48 bb 21 f7 48 89 df e8 50 b2 ff ff 31 ff 89 c5 89 c6
RSP: 0018:ffffc90000007598 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88807a1c06c0 RCX: ffffffff8a64c4f4
RDX: ffff8880187d8040 RSI: ffffffff8a64c4ff RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000007
R10: 000000000000000b R11: 0000000000000000 R12: 1ffff92000000eb3
R13: ffff8880818f9040 R14: ffff888029554e00 R15: 000000000000000b
FS:  00005555559ea480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3d652c66e4 CR3: 000000002c9b2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 tcp_data_ready+0x14c/0x5b0 net/ipv4/tcp_input.c:5128
 tcp_data_queue+0x19c3/0x5190 net/ipv4/tcp_input.c:5208
 tcp_rcv_state_process+0x11f1/0x4e20 net/ipv4/tcp_input.c:6844
 tcp_v4_do_rcv+0x369/0xa10 net/ipv4/tcp_ipv4.c:1929
 tcp_v4_rcv+0x3892/0x3b40 net/ipv4/tcp_ipv4.c:2329
 ip_protocol_deliver_rcu+0x9f/0x480 net/ipv4/ip_input.c:205
 ip_local_deliver_finish+0x2e4/0x510 net/ipv4/ip_input.c:233
 NF_HOOK include/linux/netfilter.h:314 [inline]
 NF_HOOK include/linux/netfilter.h:308 [inline]
 ip_local_deliver+0x18e/0x1f0 net/ipv4/ip_input.c:254
 dst_input include/net/dst.h:461 [inline]
 ip_rcv_finish+0x1c4/0x2f0 net/ipv4/ip_input.c:449
 NF_HOOK include/linux/netfilter.h:314 [inline]
 NF_HOOK include/linux/netfilter.h:308 [inline]
 ip_rcv+0xaf/0xd0 net/ipv4/ip_input.c:569
 __netif_receive_skb_one_core+0x115/0x180 net/core/dev.c:5529
 __netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5643
 process_backlog+0x101/0x6b0 net/core/dev.c:5971
 __napi_poll.constprop.0+0xb4/0x540 net/core/dev.c:6533
 napi_poll net/core/dev.c:6602 [inline]
 net_rx_action+0x956/0xe90 net/core/dev.c:6735
 __do_softirq+0x21a/0x8de kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:finish_task_switch.isra.0+0x223/0xca0 kernel/sched/core.c:5250
Code: 0a 00 00 44 8b 0d 55 c5 be 0d 45 85 c9 0f 85 c0 01 00 00 48 89 df e8 cc f8 ff ff e8 a7 4b 33 00 fb 65 48 8b 1c 25 00 bd 03 00 <48> 8d bb d8 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0018:ffffc900038afa60 EFLAGS: 00000202
RAX: 0000000000c135fd RBX: ffff8880187d8040 RCX: 1ffffffff1e30989
RDX: 0000000000000000 RSI: ffffffff8acca9e0 RDI: ffffffff8b2ee800
RBP: ffffc900038afaa8 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8f187ed7 R11: 0000000000000000 R12: ffff8880b983d4b8
R13: ffff88802f8f2040 R14: 0000000000000000 R15: ffff8880b983c740
 context_switch kernel/sched/core.c:5379 [inline]
 __schedule+0xee3/0x5af0 kernel/sched/core.c:6688
 __schedule_loop kernel/sched/core.c:6763 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6778
 do_nanosleep+0x218/0x500 kernel/time/hrtimer.c:2047
 hrtimer_nanosleep+0x1ae/0x440 kernel/time/hrtimer.c:2100
 common_nsleep+0xa1/0xc0 kernel/time/posix-timers.c:1350
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1396 [inline]
 __se_sys_clock_nanosleep kernel/time/posix-timers.c:1373 [inline]
 __x64_sys_clock_nanosleep+0x344/0x490 kernel/time/posix-timers.c:1373
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f60576a7ef5
Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 f6 b9 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 4f ba ff ff 48 8b 04 24 48 83 c4 28 f7 d8
RSP: 002b:00007ffd85f0c050 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000000000000ded RCX: 00007f60576a7ef5
RDX: 00007ffd85f0c090 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffd85f0c11c R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 00000000003343ef R14: 0000000000334259 R15: 0000000000000003
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	00 00                	add    %al,(%rax)
   2:	44 8b 0d 55 c5 be 0d 	mov    0xdbec555(%rip),%r9d        # 0xdbec55e
   9:	45 85 c9             	test   %r9d,%r9d
   c:	0f 85 c0 01 00 00    	jne    0x1d2
  12:	48 89 df             	mov    %rbx,%rdi
  15:	e8 cc f8 ff ff       	call   0xfffff8e6
  1a:	e8 a7 4b 33 00       	call   0x334bc6
  1f:	fb                   	sti
  20:	65 48 8b 1c 25 00 bd 	mov    %gs:0x3bd00,%rbx
  27:	03 00
* 29:	48 8d bb d8 15 00 00 	lea    0x15d8(%rbx),%rdi <-- trapping instruction
  30:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  37:	fc ff df
  3a:	48 89 fa             	mov    %rdi,%rdx
  3d:	48                   	rex.W
  3e:	c1                   	.byte 0xc1