uvm_fault(0xffffffff83959040, 0xffff8000014a204a, 0, 1) -> e kernel: page fault trap, code=0 Stopped at arp_rtrequest+0x65e: movzwl 0xc(%r15,%rbx,1),%ecx TID PID UID PRFLAGS PFLAGS CPU COMMAND * 76149 161 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff800000039058,1,fffffd806b0e0788) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806b0e0788) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff80003c9954e8,0,ffff80003c995460,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff80000149f800,ffff80003c995590,ffff80003c9954e8,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd807ebb4200,ffff800001491150) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff800001491150,fffffd807ebb4200,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800001491150,0,ffff80003c995738,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a813c48,a,ffff80003c995830,808,ffff80003c9958e0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80002a813c48,ffff80003c995990,ffff80003c9958e0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003c995990) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c995990) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1d61edeb430, count: 5 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xffffffff83959040, 0xffff8000014a204a, 0, 1) -> e ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806b0e0788) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806b0e0788) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff80003c9954e8,0,ffff80003c995460,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff80000149f800,ffff80003c995590,ffff80003c9954e8,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd807ebb4200,ffff800001491150) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff800001491150,fffffd807ebb4200,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800001491150,0,ffff80003c995738,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a813c48,a,ffff80003c995830,808,ffff80003c9958e0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80002a813c48,ffff80003c995990,ffff80003c9958e0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003c995990) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c995990) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1d61edeb430, count: -10 ddb> show registers rdi 0xffff800033934000 rsi 0x8ba rbp 0xffff80003c995330 rbx 0xde rdx 0xffff800033934000 rcx 0x100040600080100 rax 0xfffffd807ebb44e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x47322b908947ea3e r11 0x8793fe07460e985d r12 0x20 r13 0xfffffd807ebb4400 r14 0xfffffd806b0e0788 r15 0xffff8000014a1f60 rip 0xffffffff82b6378e arp_rtrequest+0x65e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c9952b0 ss 0x10 arp_rtrequest+0x65e: movzwl 0xc(%r15,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=76149 pid=161 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a812f78,0xffffffff83964ce8 process=0xffff80002d920008 user=0xffff80003c990000, vmspace=0xfffffd8070355018 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 161 206229 48907 0 2 0 syz-executor * 161 76149 48907 0 7 0x4000000 syz-executor 52073 498139 71963 0 2 0 syz-executor 45253 209822 23863 0 2 0 syz-executor 45253 381508 23863 0 2 0x4000000 syz-executor 33107 425830 58781 0 3 0x80 fsleep syz-executor 33107 92033 58781 0 3 0x4000080 wsevent_read syz-executor 3284 330875 2064 0 3 0x80 fsleep syz-executor 3284 70823 2064 0 3 0x4000080 pipewr syz-executor 3284 67207 2064 0 3 0x4000080 pipewr syz-executor 52422 223466 0 0 3 0x14200 bored sosplice 26493 492915 78176 0 3 0x80 fsleep syz-executor 26493 115384 78176 0 3 0x4000080 kqread syz-executor 95714 346370 69441 0 3 0x80 fsleep syz-executor 95714 71651 69441 0 3 0x4000080 wsevent_read syz-executor 95714 239884 69441 0 3 0x4000080 wsevent_read syz-executor 23863 131253 21801 0 2 0xc82 syz-executor 75425 432380 21801 0 2 0x2 syz-executor 69441 1323 21801 0 2 0xc82 syz-executor 48907 118779 21801 0 3 0x82 nanoslp syz-executor 78176 326774 21801 0 2 0xc82 syz-executor 2064 44347 21801 0 2 0xc82 syz-executor 58781 308156 21801 0 2 0xc82 syz-executor 71963 310069 21801 0 2 0xc82 syz-executor 21801 463326 20487 0 3 0x82 kqread syz-executor 20487 26042 31282 0 3 0x10008a sigsusp ksh 31282 360978 40641 0 3 0x98 kqread sshd-session 40641 427304 96713 0 3 0x92 kqread sshd-session 84896 152657 1 0 3 0x100083 ttyin getty 96713 145426 1 0 3 0x88 kqread sshd 52045 127891 19502 73 3 0x1100090 kqread syslogd 19502 475504 1 0 3 0x100082 sbwait syslogd 19871 377054 1 0 3 0x100080 kqread resolvd 20159 377357 33609 77 3 0x100092 kqread dhcpleased 85315 522745 33609 77 3 0x100092 kqread dhcpleased 33609 383771 1 0 3 0x80 kqread dhcpleased 3411 19312 0 0 3 0x14200 bored smr 19773 494656 0 0 2 0x14200 zerothread 29966 407939 0 0 3 0x14200 aiodoned aiodoned 92813 132539 0 0 3 0x14200 syncer update 63800 78550 0 0 3 0x14200 cleaner cleaner 80953 246555 0 0 3 0x14200 reaper reaper 97841 119594 0 0 3 0x14200 pgdaemon pagedaemon 36502 252819 0 0 3 0x14200 bored viomb 83005 389460 0 0 3 0x40014200 acpi0 acpi0 67129 208505 0 0 3 0x14200 bored softnet7 22275 350000 0 0 3 0x14200 bored softnet6 60359 304282 0 0 3 0x14200 bored softnet5 13699 455159 0 0 3 0x14200 bored softnet4 20850 297736 0 0 3 0x14200 bored softnet3 70997 487424 0 0 3 0x14200 bored softnet2 37851 281860 0 0 3 0x14200 bored softnet1 19033 99531 0 0 3 0x14200 bored softnet0 96187 129464 0 0 3 0x14200 bored systqmp 12372 165581 0 0 3 0x14200 bored systq 54426 300861 0 0 3 0x40014200 tmoslp softclock 21350 457728 0 0 3 0x40014200 idle0 1 435216 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10187 11074K 11529K 166960K 11602 0 pcb 18 12K 12K 166960K 44 0 rtable 202 6K 6K 166960K 304 0 pf 30 12K 13K 166960K 37 0 ifaddr 42 7K 7K 166960K 45 0 ifgroup 50 2K 2K 166960K 53 0 sysctl 2 1K 9K 166960K 7 0 counters 32 17K 17K 166960K 32 0 ioctlops 0 0K 4K 166960K 45 0 iov 0 0K 12K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1383 87K 87K 166960K 1481 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 4 0K 0K 166960K 5 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 251 0 proc 60 59K 124K 166960K 489 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 23 0 in_multi 99 7K 7K 166960K 107 0 ether_multi 1 0K 0K 166960K 3 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 359 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 214 150K 159K 166960K 3771 0 UVM aobj 9 4K 4K 166960K 10 0 pinsyscall 38 76K 96K 166960K 1283 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 11 0 NDP 11 0K 2K 166960K 27 0 temp 36 8662K 8726K 166960K 4258 0 kqueue 13 20K 24K 166960K 36 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 56 0 52 1 0 1 1 0 8 0 rtentry 136 98 0 12 4 0 4 4 0 8 0 unpcb 144 77 0 62 1 0 1 1 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 107 0 101 3 1 2 2 0 8 1 arp 88 10 0 0 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 220 0 207 2 0 2 2 0 8 0 nd6 104 16 0 0 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfrule 1344 3 0 3 1 1 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 467 0 41 30 1 29 30 0 8 0 art_table 40 470 0 41 5 0 5 5 0 8 0 art_node 32 98 0 22 1 0 1 1 0 8 0 semapl 112 2 0 0 1 0 1 1 0 8 0 shmpl 112 7 0 1 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1748 0 240 95 0 95 95 0 8 0 ffsino 256 1748 0 240 95 0 95 95 0 8 0 nchpl 144 2105 0 420 63 0 63 63 0 8 0 uvmvnodes 80 1928 0 0 40 0 40 40 0 8 0 vnodes 216 1928 0 0 108 0 108 108 0 8 0 namei 1024 6357 0 6357 3 2 1 2 0 8 1 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 7298 0 7298 8 7 1 8 1 8 1 plimitpl 152 46 0 30 1 0 1 1 0 8 0 sigapl 424 536 0 486 7 1 6 7 0 8 0 knotepl 120 6790 0 6743 4 0 4 4 0 8 2 kqueuepl 184 115 0 103 4 3 1 4 0 8 0 pipepl 304 109 0 80 3 0 3 3 0 8 0 fdescpl 448 515 0 486 5 1 4 5 0 8 0 filepl 120 2046 0 1817 9 1 8 9 0 8 0 lockfpl 104 100 0 95 1 0 1 1 0 8 0 lockfspl 48 49 0 44 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 29 0 13 1 0 1 1 0 8 0 ucredpl 104 143 0 132 1 0 1 1 0 8 0 zombiepl 144 486 0 486 2 1 1 1 0 8 1 processpl 1168 536 0 486 5 1 4 5 0 8 0 procpl 656 717 0 659 6 0 6 6 0 8 0 sosppl 168 4 0 2 1 0 1 1 0 8 0 sockpl 552 361 0 329 4 1 3 4 0 8 0 mcl64k 65536 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 2 0 2 2 1 1 1 0 8 1 mcl8k 8192 5 0 5 1 1 0 1 0 8 0 mcl4k 4096 2576 0 2526 15 8 7 15 0 8 0 mcl2k 2048 319 0 316 2 1 1 2 0 8 0 mtagpl 96 50 0 4 2 0 2 2 0 8 0 mbufpl 256 4863 0 4666 14 0 14 14 0 8 0 bufpl 280 2958 0 117 203 0 203 203 0 8 0 anonpl 24 106804 0 102707 29 3 26 26 0 187 0 amapchunkpl 152 11144 0 10698 22 1 21 21 0 158 2 amappl16 200 2046 0 1955 8 3 5 5 0 8 0 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 102 0 92 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 1129 0 1101 3 1 2 3 0 8 0 amappl11 160 48 0 38 1 0 1 1 0 8 0 amappl10 152 5 0 4 1 0 1 1 0 8 0 amappl9 144 246 0 246 1 1 0 1 0 8 0 amappl8 136 20 0 19 1 0 1 1 0 8 0 amappl7 128 97 0 87 1 0 1 1 0 8 0 amappl6 120 168 0 165 1 0 1 1 0 8 0 amappl5 112 113 0 106 1 0 1 1 0 8 0 amappl4 104 261 0 245 1 0 1 1 0 8 0 amappl3 96 1926 0 1824 3 0 3 3 0 8 0 amappl2 88 612 0 557 2 0 2 2 0 8 0 amappl1 80 8350 0 7815 13 1 12 13 0 8 0 amappl 88 3107 0 2957 4 0 4 4 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 9 0 1 1 0 1 1 0 8 0 uaddrrnd 24 515 0 486 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 515 0 486 1 0 1 1 0 8 0 vmmpekpl 168 5453 0 5421 2 0 2 2 0 8 0 vmmpepl 168 38625 0 36755 84 0 84 84 0 357 0 vmsppl 368 514 0 486 4 1 3 4 0 8 0 rwobjpl 40 15178 0 12358 29 0 29 29 0 8 0 pdppl 4096 1036 0 972 98 32 66 82 0 8 2 pvpl 32 244284 0 234969 86 8 78 81 0 265 0 pmappl 216 514 0 486 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 381 0 52 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806b0e0788) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806b0e0788) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff80003c9954e8,0,ffff80003c995460,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff80000149f800,ffff80003c995590,ffff80003c9954e8,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd807ebb4200,ffff800001491150) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff800001491150,fffffd807ebb4200,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800001491150,0,ffff80003c995738,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a813c48,a,ffff80003c995830,808,ffff80003c9958e0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80002a813c48,ffff80003c995990,ffff80003c9958e0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003c995990) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c995990) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1d61edeb430, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806b0e0788) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806b0e0788) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff80003c9954e8,0,ffff80003c995460,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff80000149f800,ffff80003c995590,ffff80003c9954e8,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd807ebb4200,ffff800001491150) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff800001491150,fffffd807ebb4200,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800001491150,0,ffff80003c995738,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a813c48,a,ffff80003c995830,808,ffff80003c9958e0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80002a813c48,ffff80003c995990,ffff80003c9958e0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003c995990) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c995990) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1d61edeb430, count: -10