BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:422/tfrc_rx_hist_sample_rtt() CPU: 0 PID: 13408 Comm: syz-executor.0 Not tainted 5.1.0-rc2+ #38 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 tfrc_rx_hist_sample_rtt.cold+0x56/0x61 net/dccp/ccids/lib/packet_history.c:422 ccid3_hc_rx_packet_recv+0x5c6/0xeb0 net/dccp/ccids/ccid3.c:767 ccid_hc_rx_packet_recv net/dccp/ccid.h:185 [inline] dccp_deliver_input_to_ccids+0xee/0x280 net/dccp/input.c:180 dccp_rcv_established net/dccp/input.c:378 [inline] dccp_rcv_established+0x83/0xb0 net/dccp/input.c:368 dccp_v4_do_rcv+0x139/0x190 net/dccp/ipv4.c:659 sk_backlog_rcv include/net/sock.h:937 [inline] __sk_receive_skb+0x33a/0xbd0 net/core/sock.c:527 dccp_v4_rcv+0xeaa/0x1bf1 net/dccp/ipv4.c:880 ip_protocol_deliver_rcu+0x60/0x8f0 net/ipv4/ip_input.c:208 ip_local_deliver_finish+0x23b/0x390 net/ipv4/ip_input.c:234 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip_local_deliver+0x1e9/0x520 net/ipv4/ip_input.c:255 dst_input include/net/dst.h:450 [inline] ip_rcv_finish+0x1e1/0x300 net/ipv4/ip_input.c:414 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip_rcv+0xe8/0x3f0 net/ipv4/ip_input.c:524 __netif_receive_skb_one_core+0x115/0x1a0 net/core/dev.c:4973 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 process_backlog+0x206/0x750 net/core/dev.c:5923 napi_poll net/core/dev.c:6346 [inline] net_rx_action+0x4fa/0x1070 net/core/dev.c:6412 __do_softirq+0x266/0x95a kernel/softirq.c:293 invoke_softirq kernel/softirq.c:374 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:414 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x14a/0x570 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore+0x35/0x60 arch/x86/include/asm/paravirt.h:767 Code: 48 b9 00 00 00 00 00 fc ff df 48 c1 ea 03 48 89 e5 48 83 ec 08 80 3c 0a 00 75 18 48 83 3d 52 f6 e5 06 00 74 0c 48 89 c7 57 9d <0f> 1f 44 00 00 c9 c3 0f 0b 48 89 7d f8 48 c7 c7 f0 96 92 88 e8 72 RSP: 0000:ffff88805bc8f930 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000282 RBX: 0000000000000001 RCX: dffffc0000000000 RDX: 1ffffffff11252de RSI: ffff8880972d8f40 RDI: 0000000000000282 RBP: ffff88805bc8f938 R08: ffff8880972d86c0 R09: ffff8880972d8f60 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88806c54c080 R13: ffff88805bc8fa60 R14: 0000000000000282 R15: ffff8880ae829260 consume_stock mm/memcontrol.c:1995 [inline] try_charge+0x3f8/0x15c0 mm/memcontrol.c:2198 __memcg_kmem_charge_memcg+0x7c/0x130 mm/memcontrol.c:2601 __memcg_kmem_charge+0x136/0x300 mm/memcontrol.c:2634 __alloc_pages_nodemask+0x437/0x7e0 mm/page_alloc.c:4626 alloc_pages_current+0x107/0x210 mm/mempolicy.c:2106 alloc_pages include/linux/gfp.h:509 [inline] pte_alloc_one+0x1b/0x1a0 arch/x86/mm/pgtable.c:35 do_fault_around mm/memory.c:3404 [inline] do_read_fault mm/memory.c:3444 [inline] do_fault mm/memory.c:3578 [inline] handle_pte_fault mm/memory.c:3809 [inline] __handle_mm_fault+0x3491/0x3ec0 mm/memory.c:3933 handle_mm_fault+0x43f/0xb30 mm/memory.c:3970 do_user_addr_fault arch/x86/mm/fault.c:1475 [inline] __do_page_fault+0x5ef/0xda0 arch/x86/mm/fault.c:1541 do_page_fault+0x71/0x581 arch/x86/mm/fault.c:1572 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143 RIP: 0033:0x4567da Code: Bad RIP value. RSP: 002b:0000000000a4fd30 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000a4fd30 RCX: 00000000004567da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000a4fd70 R08: 0000000000000001 R09: 00000000024b0940 R10: 00000000024b0c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000a4fdc0 net_ratelimit: 22 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 net_ratelimit: 39 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1