BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt()
CPU: 0 PID: 19410 Comm: syz-executor.3 Not tainted 6.6.0-rc2-syzkaller-00278-gdc912ba91b7e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106
 tfrc_rx_hist_sample_rtt+0x3db/0x4a0 net/dccp/ccids/lib/packet_history.c:414
 ccid3_hc_rx_packet_recv+0x844/0xf10 net/dccp/ccids/ccid3.c:760
 ccid_hc_rx_packet_recv net/dccp/ccid.h:182 [inline]
 dccp_deliver_input_to_ccids+0xe3/0x260 net/dccp/input.c:176
 dccp_rcv_established net/dccp/input.c:374 [inline]
 dccp_rcv_established+0x106/0x160 net/dccp/input.c:364
 dccp_v4_do_rcv+0x169/0x1a0 net/dccp/ipv4.c:675
 sk_backlog_rcv include/net/sock.h:1121 [inline]
 __sk_receive_skb+0x2a8/0xba0 net/core/sock.c:571
 dccp_v4_rcv+0x1282/0x1a00 net/dccp/ipv4.c:898
 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:304 [inline]
 NF_HOOK include/linux/netfilter.h:298 [inline]
 ip_local_deliver+0x1b6/0x550 net/ipv4/ip_input.c:254
 dst_input include/net/dst.h:468 [inline]
 ip_rcv_finish+0x1c4/0x2e0 net/ipv4/ip_input.c:449
 NF_HOOK include/linux/netfilter.h:304 [inline]
 NF_HOOK include/linux/netfilter.h:298 [inline]
 ip_rcv+0xc9/0x430 net/ipv4/ip_input.c:569
 __netif_receive_skb_one_core+0x115/0x180 net/core/dev.c:5523
 __netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5637
 process_backlog+0x101/0x6b0 net/core/dev.c:5965
 __napi_poll.constprop.0+0xb4/0x530 net/core/dev.c:6527
 napi_poll net/core/dev.c:6594 [inline]
 net_rx_action+0x956/0xe90 net/core/dev.c:6727
 __do_softirq+0x218/0x965 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+0x93/0xc0 arch/x86/kernel/apic/apic.c:1074
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__sanitizer_cov_trace_switch+0x40/0x90 kernel/kcov.c:341
Code: 48 83 f8 20 74 63 77 44 48 83 f8 08 74 53 48 83 f8 10 75 2f 41 bd 03 00 00 00 4c 8b 75 00 31 db 4d 85 f6 74 1e 48 8b 74 dd 10 <4c> 89 e2 4c 89 ef 48 83 c3 01 48 8b 4c 24 28 e8 1c fe ff ff 49 39
RSP: 0018:ffffc9000318f880 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff8a2d6542
RDX: ffff88801aff3b80 RSI: 0000000000000003 RDI: 0000000000000005
RBP: ffffffff8bd1f2a0 R08: 0000000000000005 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000005 R14: 0000000000000003 R15: ffff8880776cc400
 ma_pivots lib/maple_tree.c:633 [inline]
 mas_data_end lib/maple_tree.c:1456 [inline]
 mt_validate_nulls+0x542/0xb20 lib/maple_tree.c:7068
 mt_validate+0x4d1/0x3d00 lib/maple_tree.c:7115
 validate_mm+0x9a/0x460 mm/mmap.c:288
 mmap_region+0x1bd1/0x28b0 mm/mmap.c:2870
 do_mmap+0x893/0xef0 mm/mmap.c:1354
 vm_mmap_pgoff+0x1a8/0x3b0 mm/util.c:546
 ksys_mmap_pgoff+0x7d/0x5b0 mm/mmap.c:1400
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0x61/0xe0 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
 entry_SYSENTER_compat_after_hwframe+0x70/0x82
RIP: 0023:0xf7f54579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f749f990 EFLAGS: 00000246 ORIG_RAX: 00000000000000c0
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000021000
RDX: 0000000000000000 RSI: 0000000000020022 RDI: 00000000ffffffff
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	48 83 f8 20          	cmp    $0x20,%rax
   4:	74 63                	je     0x69
   6:	77 44                	ja     0x4c
   8:	48 83 f8 08          	cmp    $0x8,%rax
   c:	74 53                	je     0x61
   e:	48 83 f8 10          	cmp    $0x10,%rax
  12:	75 2f                	jne    0x43
  14:	41 bd 03 00 00 00    	mov    $0x3,%r13d
  1a:	4c 8b 75 00          	mov    0x0(%rbp),%r14
  1e:	31 db                	xor    %ebx,%ebx
  20:	4d 85 f6             	test   %r14,%r14
  23:	74 1e                	je     0x43
  25:	48 8b 74 dd 10       	mov    0x10(%rbp,%rbx,8),%rsi
* 2a:	4c 89 e2             	mov    %r12,%rdx <-- trapping instruction
  2d:	4c 89 ef             	mov    %r13,%rdi
  30:	48 83 c3 01          	add    $0x1,%rbx
  34:	48 8b 4c 24 28       	mov    0x28(%rsp),%rcx
  39:	e8 1c fe ff ff       	call   0xfffffe5a
  3e:	49                   	rex.WB
  3f:	39                   	.byte 0x39