uvm_fault(0xffffffff83975160, 0xffff80000149f06a, 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 *389057 30085 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff800000039058,1,fffffd806b3511b0) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806b3511b0) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff80003a94b2d8,0,ffff80003a94b250,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff80000149cd00,ffff80003a94b380,ffff80003a94b2d8,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd8078bc7300,ffff800001423c10) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff800001423c10,fffffd8078bc7300,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800001423c10,0,ffff80003a94b528,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7e9c50,3,ffff80003a94b620,808,ffff80003a94b6d0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80002a7e9c50,ffff80003a94b780,ffff80003a94b6d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003a94b780) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a94b780) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc721ecdc0, 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(0xffffffff83975160, 0xffff80000149f06a, 0, 1) -> e ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806b3511b0) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806b3511b0) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff80003a94b2d8,0,ffff80003a94b250,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff80000149cd00,ffff80003a94b380,ffff80003a94b2d8,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd8078bc7300,ffff800001423c10) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff800001423c10,fffffd8078bc7300,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800001423c10,0,ffff80003a94b528,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7e9c50,3,ffff80003a94b620,808,ffff80003a94b6d0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80002a7e9c50,ffff80003a94b780,ffff80003a94b6d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003a94b780) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a94b780) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc721ecdc0, count: -10 ddb> show registers rdi 0xffff800033934000 rsi 0x926 rbp 0xffff80003a94b120 rbx 0xde rdx 0xffff800033934000 rcx 0x100040600080100 rax 0xfffffd806bbf66e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0xedd33e8cbb80fca r11 0x234ff6ea1153c264 r12 0x1b r13 0xfffffd806bbf6600 r14 0xfffffd806b3511b0 r15 0xffff80000149ef80 rip 0xffffffff82cf4fbe arp_rtrequest+0x65e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003a94b0a0 ss 0x10 arp_rtrequest+0x65e: movzwl 0xc(%r15,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=389057 pid=30085 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=0xffff80002a7e8f80,0xffff80002a7e8d00 process=0xffff80003c978930 user=0xffff80003a946000, vmspace=0xfffffd806bab9010 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 71743 477139 42048 0 2 0 syz-executor 75428 308063 17317 0 2 0 syz-executor 75428 159075 17317 0 2 0x4000000 syz-executor 30085 196217 12877 0 2 0 syz-executor *30085 389057 12877 0 7 0x4000000 syz-executor 889 121615 44708 0 2 0 syz-executor 889 359867 44708 0 2 0x4000000 syz-executor 70882 310983 9972 0 2 0 syz-executor 70882 335144 9972 0 3 0x4000080 fsleep syz-executor 70882 59879 9972 0 2 0x4000000 syz-executor 99037 502862 53027 0 2 0x2 ndp 53027 474771 40980 0 3 0x10008a sigsusp sh 81365 258471 16745 0 2 0x2 syz-executor 42048 87661 16745 0 3 0x82 nanoslp syz-executor 53431 364688 16745 0 2 0x2 syz-executor 12877 11727 16745 0 2 0xc82 syz-executor 44708 482428 16745 0 2 0xc82 syz-executor 40980 507178 16745 0 3 0x82 wait syz-executor 17317 324781 16745 0 3 0x82 nanoslp syz-executor 9972 521060 16745 0 3 0x82 nanoslp syz-executor 16745 391292 22506 0 2 0x2 syz-executor 22506 291770 57309 0 3 0x10008a sigsusp ksh 57309 488502 63605 0 3 0x98 kqread sshd-session 63605 434570 80794 0 3 0x92 kqread sshd-session 282 412222 1 0 3 0x100083 ttyin getty 80794 59884 1 0 3 0x88 kqread sshd 79009 337381 55222 73 3 0x1100090 kqread syslogd 55222 130070 1 0 3 0x100082 sbwait syslogd 63644 93603 1 0 3 0x100080 kqread resolvd 22789 522175 43416 77 3 0x100092 kqread dhcpleased 76942 390943 43416 77 3 0x100092 kqread dhcpleased 43416 21793 1 0 3 0x80 kqread dhcpleased 26192 164641 0 0 3 0x14200 bored smr 52653 284056 0 0 2 0x14200 zerothread 79442 414343 0 0 3 0x14200 aiodoned aiodoned 18669 337639 0 0 3 0x14200 syncer update 78676 78860 0 0 3 0x14200 cleaner cleaner 3652 157407 0 0 3 0x14200 reaper reaper 64032 198649 0 0 3 0x14200 pgdaemon pagedaemon 35354 461690 0 0 3 0x14200 bored viomb 34247 385828 0 0 3 0x40014200 acpi0 acpi0 14891 407947 0 0 3 0x14200 bored softnet7 49808 173708 0 0 3 0x14200 bored softnet6 36137 125458 0 0 3 0x14200 bored softnet5 23616 511 0 0 3 0x14200 bored softnet4 38737 479441 0 0 3 0x14200 bored softnet3 83928 409157 0 0 3 0x14200 bored softnet2 90151 38528 0 0 3 0x14200 bored softnet1 51597 211906 0 0 3 0x14200 bored softnet0 70955 202158 0 0 3 0x14200 bored systqmp 15531 303152 0 0 3 0x14200 bored systq 79065 350038 0 0 3 0x40014200 tmoslp softclock 87343 63301 0 0 3 0x40014200 idle0 1 243637 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 10173 11041K 11053K 166960K 11252 0 pcb 17 12K 12K 166960K 17 0 rtable 220 7K 7K 166960K 290 0 pf 30 12K 12K 166960K 30 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 5 0 counters 32 17K 17K 166960K 32 0 ioctlops 0 0K 2K 166960K 29 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1336 84K 84K 166960K 1353 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 158 0 proc 59 59K 124K 166960K 474 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 345 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 197 151K 159K 166960K 2945 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 38 76K 96K 166960K 1179 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 2 0 NDP 27 2K 2K 166960K 27 0 temp 33 8662K 8726K 166960K 3714 0 kqueue 13 20K 22K 166960K 22 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 39 0 35 1 0 1 1 0 8 0 rtentry 136 96 0 1 4 0 4 4 0 8 0 unpcb 144 35 0 20 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 9 0 5 1 0 1 1 0 8 0 arp 88 10 0 0 1 0 1 1 0 8 0 inpcb 328 59 0 52 2 0 2 2 0 8 1 nd6 104 16 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 437 0 0 28 0 28 28 0 8 0 art_table 40 439 0 0 5 0 5 5 0 8 0 art_node 32 96 0 11 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1564 0 62 94 0 94 94 0 8 0 ffsino 256 1564 0 62 94 0 94 94 0 8 0 nchpl 144 1768 0 96 63 0 63 63 0 8 0 uvmvnodes 80 1648 0 0 34 0 34 34 0 8 0 vnodes 216 1648 0 0 92 0 92 92 0 8 0 namei 1024 5119 0 5118 2 0 2 2 0 8 1 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 6246 0 6246 8 0 8 8 1 8 8 plimitpl 152 26 0 10 1 0 1 1 0 8 0 sigapl 424 439 0 390 7 0 7 7 0 8 0 knotepl 120 3471 0 3424 2 0 2 2 0 8 0 kqueuepl 184 18 0 9 1 0 1 1 0 8 0 pipepl 304 98 0 71 3 0 3 3 0 8 0 fdescpl 448 419 0 390 5 0 5 5 0 8 1 filepl 120 1298 0 1094 7 0 7 7 0 8 0 lockfpl 104 8 0 6 1 0 1 1 0 8 0 lockfspl 48 5 0 3 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 66 0 55 1 0 1 1 0 8 0 zombiepl 144 390 0 390 1 0 1 1 0 8 1 processpl 1168 439 0 390 5 0 5 5 0 8 1 procpl 656 468 0 414 5 0 5 5 0 8 0 sockpl 552 134 0 108 3 0 3 3 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl12k 12288 3 0 3 1 0 1 1 0 8 1 mcl9k 9216 3 0 3 1 0 1 1 0 8 1 mcl8k 8192 14 0 14 1 0 1 1 0 8 1 mcl4k 4096 2364 0 2312 13 0 13 13 0 8 6 mcl2k 2048 150 0 149 1 0 1 1 0 8 0 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 3809 0 3675 9 0 9 9 0 8 0 bufpl 280 2826 0 117 194 0 194 194 0 8 0 anonpl 24 89097 0 86371 23 0 23 23 0 187 4 amapchunkpl 152 8271 0 7905 16 0 16 16 0 158 1 amappl16 200 1490 0 1473 5 0 5 5 0 8 4 amappl15 192 6 0 6 1 0 1 1 0 8 1 amappl14 184 119 0 109 1 0 1 1 0 8 0 amappl13 176 1 0 1 1 0 1 1 0 8 1 amappl12 168 1038 0 1010 3 0 3 3 0 8 1 amappl11 160 77 0 66 1 0 1 1 0 8 0 amappl10 152 59 0 59 1 0 1 1 0 8 1 amappl9 144 246 0 246 1 0 1 1 0 8 1 amappl8 136 26 0 25 1 0 1 1 0 8 0 amappl7 128 96 0 86 1 0 1 1 0 8 0 amappl6 120 172 0 168 1 0 1 1 0 8 0 amappl5 112 130 0 124 1 0 1 1 0 8 0 amappl4 104 255 0 241 1 0 1 1 0 8 0 amappl3 96 1278 0 1194 3 0 3 3 0 8 0 amappl2 88 598 0 544 2 0 2 2 0 8 0 amappl1 80 7943 0 7394 14 0 14 14 0 8 1 amappl 88 2316 0 2184 4 0 4 4 0 92 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 419 0 390 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 419 0 390 1 0 1 1 0 8 0 vmmpekpl 168 4839 0 4816 2 0 2 2 0 8 0 vmmpepl 168 33004 0 31292 81 0 81 81 0 357 4 vmsppl 368 418 0 390 4 0 4 4 0 8 0 rwobjpl 40 13288 0 10839 26 0 26 26 0 8 0 pdppl 4096 844 0 780 94 12 82 82 0 8 18 pvpl 32 202641 0 195290 66 0 66 66 0 265 1 pmappl 216 418 0 390 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 361 0 12 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806b3511b0) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806b3511b0) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff80003a94b2d8,0,ffff80003a94b250,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff80000149cd00,ffff80003a94b380,ffff80003a94b2d8,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd8078bc7300,ffff800001423c10) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff800001423c10,fffffd8078bc7300,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800001423c10,0,ffff80003a94b528,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7e9c50,3,ffff80003a94b620,808,ffff80003a94b6d0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80002a7e9c50,ffff80003a94b780,ffff80003a94b6d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003a94b780) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a94b780) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc721ecdc0, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806b3511b0) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806b3511b0) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff80003a94b2d8,0,ffff80003a94b250,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff80000149cd00,ffff80003a94b380,ffff80003a94b2d8,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd8078bc7300,ffff800001423c10) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff800001423c10,fffffd8078bc7300,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800001423c10,0,ffff80003a94b528,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7e9c50,3,ffff80003a94b620,808,ffff80003a94b6d0) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80002a7e9c50,ffff80003a94b780,ffff80003a94b6d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff80003a94b780) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a94b780) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc721ecdc0, count: -10