BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt()
CPU: 1 PID: 5539 Comm: syz-executor.0 Not tainted 6.5.0-syzkaller-12107-g7ba2090ca64e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 tfrc_rx_hist_sample_rtt+0x393/0x4b0 net/dccp/ccids/lib/packet_history.c:414
 ccid3_hc_rx_packet_recv+0x6ae/0xf50 net/dccp/ccids/ccid3.c:760
 ccid_hc_rx_packet_recv net/dccp/ccid.h:182 [inline]
 dccp_deliver_input_to_ccids net/dccp/input.c:176 [inline]
 dccp_rcv_established+0x1b7/0x310 net/dccp/input.c:374
 dccp_v4_do_rcv+0xff/0x1e0 net/dccp/ipv4.c:680
 sk_backlog_rcv include/net/sock.h:1115 [inline]
 __sk_receive_skb+0x41e/0x9d0 net/core/sock.c:571
 ip_protocol_deliver_rcu+0x208/0x3f0 net/ipv4/ip_input.c:205
 ip_local_deliver_finish+0x28e/0x4c0 net/ipv4/ip_input.c:233
 NF_HOOK+0x368/0x410 include/linux/netfilter.h:304
 NF_HOOK+0x368/0x410 include/linux/netfilter.h:304
 __netif_receive_skb_one_core net/core/dev.c:5523 [inline]
 __netif_receive_skb+0x1ca/0x530 net/core/dev.c:5637
 process_backlog+0x34b/0x710 net/core/dev.c:5965
 __napi_poll+0xc7/0x470 net/core/dev.c:6527
 napi_poll net/core/dev.c:6594 [inline]
 net_rx_action+0x78b/0x1010 net/core/dev.c:6727
 __do_softirq+0x2ab/0x908 kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu+0xf1/0x1b0 kernel/softirq.c:632
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x95/0xb0 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:bpf_lsm_socket_sendmsg+0x0/0x10 include/linux/lsm_hook_defs.h:302
Code: 04 d8 ff 31 c0 c3 0f 1f 40 00 f3 0f 1e fa e8 37 04 d8 ff 31 c0 c3 0f 1f 40 00 f3 0f 1e fa e8 27 04 d8 ff 31 c0 c3 0f 1f 40 00 <f3> 0f 1e fa e8 17 04 d8 ff 31 c0 c3 0f 1f 40 00 f3 0f 1e fa e8 07
RSP: 0018:ffffc9000552f880 EFLAGS: 00000246
RAX: 1ffffffff1998274 RBX: ffffffff8ccc1388 RCX: ffff888020efd940
RDX: 0000000000000000 RSI: ffffc9000552fd40 RDI: ffff888076673000
RBP: ffffffff8ccc13a0 R08: ffffffff83fd9045 R09: ffffffff83fd8fad
R10: 0000000000000003 R11: ffff888020efd940 R12: ffff888076673000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc9000552fd40
 security_socket_sendmsg+0x71/0xa0 security/security.c:4243
 sock_sendmsg net/socket.c:750 [inline]
 ____sys_sendmsg+0x513/0x890 net/socket.c:2540
 ___sys_sendmsg net/socket.c:2594 [inline]
 __sys_sendmmsg+0x3b2/0x730 net/socket.c:2680
 __do_sys_sendmmsg net/socket.c:2709 [inline]
 __se_sys_sendmmsg net/socket.c:2706 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2706
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f62b347c8c9
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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f62b42930c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f62b359bf80 RCX: 00007f62b347c8c9
RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006
RBP: 00007f62b34d8ae8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f62b359bf80 R15: 00007ffc9f33d478
 </TASK>
Negotiation of local Allow Short Seqnos failed in state CHANGING at net/dccp/feat.c:1537/dccp_feat_activate_values()
BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:417/tfrc_rx_hist_sample_rtt()
CPU: 1 PID: 6013 Comm: syz-executor.0 Not tainted 6.5.0-syzkaller-12107-g7ba2090ca64e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 tfrc_rx_hist_sample_rtt+0x393/0x4b0 net/dccp/ccids/lib/packet_history.c:414
 ccid3_hc_rx_packet_recv+0x6ae/0xf50 net/dccp/ccids/ccid3.c:760
 ccid_hc_rx_packet_recv net/dccp/ccid.h:182 [inline]
 dccp_deliver_input_to_ccids net/dccp/input.c:176 [inline]
 dccp_rcv_established+0x1b7/0x310 net/dccp/input.c:374
 dccp_v4_do_rcv+0xff/0x1e0 net/dccp/ipv4.c:680
 sk_backlog_rcv include/net/sock.h:1115 [inline]
 __sk_receive_skb+0x41e/0x9d0 net/core/sock.c:571
 ip_protocol_deliver_rcu+0x208/0x3f0 net/ipv4/ip_input.c:205
 ip_local_deliver_finish+0x28e/0x4c0 net/ipv4/ip_input.c:233
 NF_HOOK+0x368/0x410 include/linux/netfilter.h:304
 NF_HOOK+0x368/0x410 include/linux/netfilter.h:304
 __netif_receive_skb_one_core net/core/dev.c:5523 [inline]
 __netif_receive_skb+0x1ca/0x530 net/core/dev.c:5637
 process_backlog+0x34b/0x710 net/core/dev.c:5965
 __napi_poll+0xc7/0x470 net/core/dev.c:6527
 napi_poll net/core/dev.c:6594 [inline]
 net_rx_action+0x78b/0x1010 net/core/dev.c:6727
 __do_softirq+0x2ab/0x908 kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu+0xf1/0x1b0 kernel/softirq.c:632
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x95/0xb0 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:PageTail include/linux/page-flags.h:286 [inline]
RIP: 0010:free_tail_page_prepare+0x1d0/0x410 mm/page_alloc.c:1012
Code: 04 00 00 00 00 ad de 49 39 04 24 75 32 4c 8d 7b 08 4d 89 fc 49 c1 ec 03 43 80 3c 2c 00 74 08 4c 89 ff e8 33 52 0b 00 49 8b 07 <a8> 01 0f 85 93 01 00 00 48 c7 04 24 e0 22 15 8b 0f 1f 44 00 00 48
RSP: 0018:ffffc9000313f1b0 EFLAGS: 00000246
RAX: ffffea0000acf401 RBX: ffffea0000acf480 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffffea0000acf480 RDI: ffffea0000acf400
RBP: 0000000000000000 R08: ffffea0000acf477 R09: 1ffffd4000159e8e
R10: dffffc0000000000 R11: fffff94000159e8f R12: 1ffffd4000159e91
R13: dffffc0000000000 R14: ffffea0000acf400 R15: ffffea0000acf488
 free_pages_prepare mm/page_alloc.c:1113 [inline]
 free_unref_page_prepare+0x4bc/0x9f0 mm/page_alloc.c:2312
 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2405
 __slab_free+0x2f6/0x390 mm/slub.c:3715
 qlist_free_all+0x22/0x60 mm/kasan/quarantine.c:185
 kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:292
 __kasan_slab_alloc+0x23/0x70 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:186 [inline]
 slab_post_alloc_hook+0x6c/0x3b0 mm/slab.h:762
 slab_alloc_node mm/slub.c:3478 [inline]
 kmem_cache_alloc_node+0x148/0x330 mm/slub.c:3523
 __alloc_skb+0x181/0x420 net/core/skbuff.c:634
 alloc_skb include/linux/skbuff.h:1286 [inline]
 alloc_skb_with_frags+0xc3/0x780 net/core/skbuff.c:6299
 sock_alloc_send_pskb+0x919/0xa50 net/core/sock.c:2794
 sock_alloc_send_skb include/net/sock.h:1879 [inline]
 dccp_sendmsg+0x3e1/0xb60 net/dccp/proto.c:764
 sock_sendmsg_nosec net/socket.c:730 [inline]
 sock_sendmsg net/socket.c:753 [inline]
 ____sys_sendmsg+0x592/0x890 net/socket.c:2540
 ___sys_sendmsg net/socket.c:2594 [inline]
 __sys_sendmmsg+0x3b2/0x730 net/socket.c:2680
 __do_sys_sendmmsg net/socket.c:2709 [inline]
 __se_sys_sendmmsg net/socket.c:2706 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2706
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f62b347c8c9
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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f62b42930c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f62b359bf80 RCX: 00007f62b347c8c9
RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006
RBP: 00007f62b34d8ae8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f62b359bf80 R15: 00007ffc9f33d478
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	d8 ff                	fdivr  %st(7),%st
   2:	31 c0                	xor    %eax,%eax
   4:	c3                   	ret
   5:	0f 1f 40 00          	nopl   0x0(%rax)
   9:	f3 0f 1e fa          	endbr64
   d:	e8 37 04 d8 ff       	call   0xffd80449
  12:	31 c0                	xor    %eax,%eax
  14:	c3                   	ret
  15:	0f 1f 40 00          	nopl   0x0(%rax)
  19:	f3 0f 1e fa          	endbr64
  1d:	e8 27 04 d8 ff       	call   0xffd80449
  22:	31 c0                	xor    %eax,%eax
  24:	c3                   	ret
  25:	0f 1f 40 00          	nopl   0x0(%rax)
* 29:	f3 0f 1e fa          	endbr64 <-- trapping instruction
  2d:	e8 17 04 d8 ff       	call   0xffd80449
  32:	31 c0                	xor    %eax,%eax
  34:	c3                   	ret
  35:	0f 1f 40 00          	nopl   0x0(%rax)
  39:	f3 0f 1e fa          	endbr64
  3d:	e8                   	.byte 0xe8
  3e:	07                   	(bad)