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: 1 PID: 5469 Comm: syz-executor.0 Not tainted 6.8.0-rc1-syzkaller-gecb1b8288dc7 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106
tfrc_rx_hist_sample_rtt+0x3dd/0x4a0 net/dccp/ccids/lib/packet_history.c:414
ccid3_hc_rx_packet_recv+0x443/0xf50 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+0x169/0x1b0 net/dccp/ipv4.c:675
sk_backlog_rcv include/net/sock.h:1092 [inline]
__sk_receive_skb+0x2af/0x840 net/core/sock.c:568
dccp_v4_rcv+0x1281/0x1980 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: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+0x1b8/0x2e0 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:5534
__netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5648
process_backlog+0x101/0x6b0 net/core/dev.c:5976
__napi_poll.constprop.0+0xb4/0x540 net/core/dev.c:6576
napi_poll net/core/dev.c:6645 [inline]
net_rx_action+0x956/0xe90 net/core/dev.c:6778
__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
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:unwind_next_frame+0x121c/0x2390 arch/x86/kernel/unwind_orc.c:665
Code: 79 11 00 00 4c 8b 6b 10 4c 39 ed 73 36 e8 5c b5 4c 00 4c 8d 75 08 4d 39 f4 73 28 e8 4e b5 4c 00 4d 39 f5 72 1e e8 44 b5 4c 00 <4c> 8b 7c 24 18 48 89 ee 4c 89 ff e8 44 b0 4c 00 49 39 ef 0f 83 50
RSP: 0018:ffffc900039d7168 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffffc900039d71e8 RCX: ffffffff813a568b
RDX: ffff88802121a400 RSI: ffffffff813a572c RDI: ffffc900039d71f8
RBP: ffffc900039d79d0 R08: 0000000000000004 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000800 R12: ffffc900039d0000
R13: ffffc900039d8000 R14: ffffc900039d79d8 R15: 0000000000000001
arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x50 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:372 [inline]
__kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:389
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slub.c:3981 [inline]
__kmalloc_node_track_caller+0x219/0x460 mm/slub.c:4001
kmalloc_reserve+0xef/0x260 net/core/skbuff.c:582
__alloc_skb+0x12b/0x330 net/core/skbuff.c:651
alloc_skb include/linux/skbuff.h:1296 [inline]
alloc_skb_with_frags+0xe4/0x710 net/core/skbuff.c:6394
sock_alloc_send_pskb+0x7e4/0x970 net/core/sock.c:2784
sock_alloc_send_skb include/net/sock.h:1855 [inline]
dccp_sendmsg+0x2f4/0xcc0 net/dccp/proto.c:764
inet_sendmsg+0x9d/0xe0 net/ipv4/af_inet.c:850
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0xd5/0x180 net/socket.c:745
____sys_sendmsg+0x2ac/0x940 net/socket.c:2584
___sys_sendmsg+0x135/0x1d0 net/socket.c:2638
__sys_sendmmsg+0x1a1/0x450 net/socket.c:2724
__do_sys_sendmmsg net/socket.c:2753 [inline]
__se_sys_sendmmsg net/socket.c:2750 [inline]
__x64_sys_sendmmsg+0x9c/0x100 net/socket.c:2750
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fa69f87cd29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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:00007fa6a05cc0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007fa69f9abf80 RCX: 00007fa69f87cd29
RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006
RBP: 00007fa69f8c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa69f9abf80 R15: 00007ffdb43ae078
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: 1 PID: 5827 Comm: syz-executor.0 Not tainted 6.8.0-rc1-syzkaller-gecb1b8288dc7 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x125/0x1b0 lib/dump_stack.c:106
tfrc_rx_hist_sample_rtt+0x3dd/0x4a0 net/dccp/ccids/lib/packet_history.c:414
ccid3_hc_rx_packet_recv+0x443/0xf50 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+0x169/0x1b0 net/dccp/ipv4.c:675
sk_backlog_rcv include/net/sock.h:1092 [inline]
__sk_receive_skb+0x2af/0x840 net/core/sock.c:568
dccp_v4_rcv+0x1281/0x1980 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: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+0x1b8/0x2e0 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:5534
__netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5648
process_backlog+0x101/0x6b0 net/core/dev.c:5976
__napi_poll.constprop.0+0xb4/0x540 net/core/dev.c:6576
napi_poll net/core/dev.c:6645 [inline]
net_rx_action+0x956/0xe90 net/core/dev.c:6778
__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
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:write_comp_data+0x0/0x80 kernel/kcov.c:230
Code: 65 8b 15 cb bb 7c 7e 81 e2 00 01 ff 00 75 10 65 48 8b 04 25 40 c2 03 00 48 8b 80 f0 15 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 <49> 89 d2 49 89 f8 49 89 f1 65 48 8b 14 25 40 c2 03 00 65 8b 05 8f
RSP: 0018:ffffc90003aaf160 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc90003aaf1e8 RCX: ffffffff813a568b
RDX: 0000000000000001 RSI: 0000000000000001 RDI: 0000000000000004
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000004
R10: 0000000000000000 R11: 0000000000000800 R12: 0000000000000001
R13: ffffc90003aaff28 R14: 0000000000000000 R15: 0000000000000001
unwind_next_frame+0x117b/0x2390 arch/x86/kernel/unwind_orc.c:664
arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x50 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:372 [inline]
__kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:389
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slub.c:3981 [inline]
__kmalloc_node_track_caller+0x219/0x460 mm/slub.c:4001
kmalloc_reserve+0xef/0x260 net/core/skbuff.c:582
__alloc_skb+0x12b/0x330 net/core/skbuff.c:651
alloc_skb include/linux/skbuff.h:1296 [inline]
alloc_skb_with_frags+0xe4/0x710 net/core/skbuff.c:6394
sock_alloc_send_pskb+0x7e4/0x970 net/core/sock.c:2784
sock_alloc_send_skb include/net/sock.h:1855 [inline]
dccp_sendmsg+0x2f4/0xcc0 net/dccp/proto.c:764
inet_sendmsg+0x9d/0xe0 net/ipv4/af_inet.c:850
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0xd5/0x180 net/socket.c:745
____sys_sendmsg+0x2ac/0x940 net/socket.c:2584
___sys_sendmsg+0x135/0x1d0 net/socket.c:2638
__sys_sendmmsg+0x1a1/0x450 net/socket.c:2724
__do_sys_sendmmsg net/socket.c:2753 [inline]
__se_sys_sendmmsg net/socket.c:2750 [inline]
__x64_sys_sendmmsg+0x9c/0x100 net/socket.c:2750
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fa69f87cd29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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:00007fa6a05cc0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007fa69f9abf80 RCX: 00007fa69f87cd29
RDX: 000000000000ffc3 RSI: 0000000020001e80 RDI: 0000000000000006
RBP: 00007fa69f8c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa69f9abf80 R15: 00007ffdb43ae078
----------------
Code disassembly (best guess):
0: 79 11 jns 0x13
2: 00 00 add %al,(%rax)
4: 4c 8b 6b 10 mov 0x10(%rbx),%r13
8: 4c 39 ed cmp %r13,%rbp
b: 73 36 jae 0x43
d: e8 5c b5 4c 00 call 0x4cb56e
12: 4c 8d 75 08 lea 0x8(%rbp),%r14
16: 4d 39 f4 cmp %r14,%r12
19: 73 28 jae 0x43
1b: e8 4e b5 4c 00 call 0x4cb56e
20: 4d 39 f5 cmp %r14,%r13
23: 72 1e jb 0x43
25: e8 44 b5 4c 00 call 0x4cb56e
* 2a: 4c 8b 7c 24 18 mov 0x18(%rsp),%r15 <-- trapping instruction
2f: 48 89 ee mov %rbp,%rsi
32: 4c 89 ff mov %r15,%rdi
35: e8 44 b0 4c 00 call 0x4cb07e
3a: 49 39 ef cmp %rbp,%r15
3d: 0f .byte 0xf
3e: 83 .byte 0x83
3f: 50 push %rax