uvm_fault(0xffffffff82620600, 0xffff800000b12074, 0, 1) -> e kernel: page fault trap, code=0 Stopped at rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff82620600, 0xffff800000b12074, 0, 1) -> e rtable_satoplen(2,ffff800000b11f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff800023b97000, count: 0 ddb{1}> trace rtable_satoplen(2,ffff800000b11f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd806258ac20,ffff800000b11f78,ffff800000b11f58,4) at rtable_lookup+0xeb sys/net/rtable.c:391 rtrequest_delete(ffff800023b970a0,4,ffff800000b0a800,ffff800023b97170,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000b11f00,800100,ffff800000b11f58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000b11f00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000b11f00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000b11f00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000b0a800,ffff800000b11f00,ffff800023b974f0,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff800023b974e0,ffff800000b0a800,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff800023b974e0,ffff800000b0a800,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd806a0f3790,8040691a,ffff800023b974e0,ffff800020ab1160) at ifioctl+0xb64 sys/net/if.c:2202 sys_ioctl(ffff800020ab1160,ffff800023b975f8,ffff800023b97640) at sys_ioctl+0x5b9 syscall(ffff800023b976c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800023b976c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,81918ac8010) at Xsyscall+0x128 end of kernel end trace frame: 0x81c12748030, count: -12 ddb{1}> show registers rdi 0 rsi 0xfd rbp 0xffff800023b96f60 rbx 0xffffffffffffff07 rdx 0xffff800000b11f7c rcx 0xffff800000b12075 rax 0xffff800000b12075 r8 0x4 r9 0x5 r10 0x94158088c0a7026f r11 0xdd62f16e4e239262 r12 0 r13 0xffff800000b12075 r14 0xffffffff824685c0 inetdomain r15 0x4 rip 0xffffffff816e4d60 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff800023b96f10 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb{1}> show proc PROC (syz-executor.0) pid=68356 stat=onproc flags process=0 proc=4000000 pri=77, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff800020ab0780,0xffffffff826716a0 process=0xffff800020a4bc08 user=0xffff800023b92000, vmspace=0xfffffd807f00aa10 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 77983 33594 43858 0 2 0 syz-executor.0 *77983 68356 43858 0 7 0x4000000 syz-executor.0 43858 93787 71483 0 3 0x82 nanosleep syz-executor.0 53794 67513 0 0 3 0x14200 acct acct 70867 111875 0 0 3 0x14200 bored sosplice 63093 160901 71483 0 3 0x82 nanosleep syz-executor.1 71483 261665 89986 0 3 0x82 thrsleep syz-fuzzer 71483 56663 89986 0 3 0x4000082 thrsleep syz-fuzzer 71483 420290 89986 0 3 0x4000082 thrsleep syz-fuzzer 71483 387906 89986 0 3 0x4000082 thrsleep syz-fuzzer 71483 499480 89986 0 3 0x4000082 thrsleep syz-fuzzer 71483 307915 89986 0 3 0x4000082 thrsleep syz-fuzzer 71483 326935 89986 0 3 0x4000082 thrsleep syz-fuzzer 71483 148030 89986 0 3 0x4000082 thrsleep syz-fuzzer 71483 438773 89986 0 3 0x4000082 kqread syz-fuzzer 71483 209410 89986 0 3 0x4000082 thrsleep syz-fuzzer 89986 114120 44062 0 3 0x10008a pause ksh 44062 102616 15956 0 3 0x92 select sshd 90835 199993 1 0 3 0x100083 ttyin getty 15956 394484 1 0 3 0x80 select sshd 21035 245215 30246 74 3 0x100092 bpf pflogd 30246 378084 1 0 3 0x80 netio pflogd 1668 472970 95729 73 3 0x100090 kqread syslogd 95729 454504 1 0 3 0x100082 netio syslogd 83706 496445 1 77 3 0x100090 poll dhclient 76476 449879 1 0 3 0x80 poll dhclient 14452 427011 0 0 3 0x14200 pgzero zerothread 22408 17122 0 0 3 0x14200 aiodoned aiodoned 60869 351078 0 0 3 0x14200 syncer update 64188 266762 0 0 3 0x14200 cleaner cleaner 14282 491710 0 0 7 0x14200 reaper 77753 356227 0 0 3 0x14200 pgdaemon pagedaemon 70318 409166 0 0 3 0x14200 bored crynlk 87671 63848 0 0 3 0x14200 bored crypto 24888 118562 0 0 3 0x40014200 acpi0 acpi0 52818 167608 0 0 3 0x40014200 idle1 21297 96813 0 0 3 0x14200 bored softnet 70134 300727 0 0 3 0x14200 bored systqmp 353 424693 0 0 3 0x14200 bored systq 4840 361713 0 0 3 0x40014200 bored softclock 33703 294465 0 0 3 0x40014200 idle0 2160 518247 0 0 3 0x14200 bored smr 1 51410 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 77983 (syz-executor.0) thread 0xffff800020ab1160 (68356) exclusive rwlock netlock r = 0 (0xffffffff824ca238) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 in_ioctl_change_ifaddr+0x3f #2 in_ioctl+0x205 sys/netinet/in.c:234 #3 ifioctl+0xb64 sys/net/if.c:2202 #4 sys_ioctl+0x5b9 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82625ee0) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:555 #2 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9561 6428K 7053K 78643K 12283 0 0 pcb 13 10K 12K 78643K 245 0 0 rtable 102 12K 13K 78643K 808 0 0 ifaddr 74 16K 17K 78643K 281 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1523 0 0 iov 0 0K 20K 78643K 190 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1220 77K 77K 78643K 1913 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 20 0 0 VM map 10 5K 5K 78643K 12 0 0 sem 12 0K 1K 78643K 264 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 5 13K 25K 78643K 841 0 0 sigio 0 0K 0K 78643K 10 0 0 proc 61 63K 95K 78643K 698 0 0 subproc 32 2K 2K 78643K 119 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 61 0 0 in_multi 23 1K 2K 78643K 123 0 0 ether_multi 1 0K 0K 78643K 13 0 0 mrt 0 0K 0K 78643K 9 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 96 424K 424K 78643K 96 0 0 exec 0 0K 1K 78643K 363 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 139 89K 90K 78643K 3886 0 0 UVM aobj 59 4K 4K 78643K 60 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 464 0 0 NDP 17 0K 0K 78643K 80 0 0 temp 207 3564K 3632K 78643K 20241 0 0 kqueue 0 0K 0K 78643K 3 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 19 0 15 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 91 0 89 1 0 1 1 0 8 0 rtentry 112 113 0 77 2 0 2 2 0 8 0 unpcb 120 796 0 784 2 1 1 2 0 8 0 syncache 264 7 0 7 3 2 1 1 0 8 1 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 116 0 116 2 1 1 1 0 8 1 tcpcb 544 594 0 588 2 1 1 2 0 8 0 inpcb 280 1909 0 1900 13 11 2 13 0 8 1 rttmr 72 4 0 3 2 1 1 1 0 8 0 nd6 48 15 0 13 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1128 34 0 34 2 1 1 1 0 8 1 pffrag 232 23 0 23 3 2 1 1 0 482 1 pffrnode 88 23 0 23 3 2 1 1 0 8 1 pffrent 40 558 0 558 3 2 1 1 0 8 1 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 87 0 18 1 0 1 1 0 8 0 pfstkey 112 87 0 18 2 0 2 2 0 8 0 pfstate 328 87 0 18 6 0 6 6 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 5 0 3 3 1 2 3 0 8 0 art_heap4 256 551 0 348 17 4 13 14 0 8 0 art_table 32 556 0 351 2 0 2 2 0 8 0 art_node 16 112 0 79 1 0 1 1 0 8 0 sysvmsgpl 40 27 0 22 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 262 0 252 1 0 1 1 0 8 0 shmpl 112 58 0 1 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2674 0 1270 46 0 46 46 0 8 0 ffsino 272 2674 0 1270 95 0 95 95 0 8 0 nchpl 144 4067 0 2457 61 0 61 61 0 8 0 uvmvnodes 72 3207 0 0 59 0 59 59 0 8 0 vnodes 208 3207 0 0 169 0 169 169 0 8 0 namei 1024 13880 0 13880 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 8 0 0 1 0 1 1 0 8 0 vmpool 552 10 0 2 1 0 1 1 0 8 0 scsiplug 64 3 0 3 2 2 0 1 0 8 0 scxspl 192 12588 0 12588 13 12 1 7 0 8 1 plimitpl 152 86 0 78 1 0 1 1 0 8 0 sigapl 432 1026 0 1011 3 1 2 3 0 8 0 futexpl 56 21236 0 21236 1 0 1 1 0 8 1 knotepl 112 229 0 210 1 0 1 1 0 8 0 kqueuepl 104 209 0 207 1 0 1 1 0 8 0 pipepl 112 566 0 547 3 2 1 2 0 8 0 fdescpl 488 1027 0 1011 3 0 3 3 0 8 0 filepl 152 9249 0 9147 15 10 5 14 0 8 1 lockfpl 104 268 0 267 1 0 1 1 0 8 0 lockfspl 48 88 0 87 1 0 1 1 0 8 0 sessionpl 112 23 0 12 1 0 1 1 0 8 0 pgrppl 48 27 0 16 1 0 1 1 0 8 0 ucredpl 96 1142 0 1133 1 0 1 1 0 8 0 zombiepl 144 1011 0 1010 1 0 1 1 0 8 0 processpl 896 1044 0 1010 4 0 4 4 0 8 0 procpl 632 2857 0 2813 6 1 5 5 0 8 1 srpgc 64 12 0 12 2 2 0 1 0 8 0 sosppl 128 7 0 7 3 2 1 1 0 8 1 sockpl 384 2802 0 2779 23 19 4 22 0 8 1 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 16 0 0 2 0 2 2 0 8 0 mcl9k 9216 6 0 0 1 0 1 1 0 8 0 mcl8k 8192 13 0 0 2 0 2 2 0 8 0 mcl4k 4096 12 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 154 0 0 19 0 19 19 0 8 0 mtagpl 80 19 0 0 1 0 1 1 0 8 0 mbufpl 256 377 0 0 21 0 21 21 0 8 0 bufpl 256 8769 0 1721 441 0 441 441 0 8 0 anonpl 16 129987 0 111222 94 16 78 92 0 124 0 amapchunkpl 152 7356 0 7189 27 14 13 20 0 158 6 amappl16 192 5161 0 4129 67 13 54 60 0 8 2 amappl15 184 174 0 174 1 0 1 1 0 8 1 amappl14 176 440 0 436 1 0 1 1 0 8 0 amappl12 160 91 0 91 3 3 0 1 0 8 0 amappl11 152 71 0 55 1 0 1 1 0 8 0 amappl10 144 163 0 157 1 0 1 1 0 8 0 amappl9 136 716 0 707 1 0 1 1 0 8 0 amappl8 128 286 0 244 2 0 2 2 0 8 0 amappl7 120 196 0 189 1 0 1 1 0 8 0 amappl6 112 89 0 76 1 0 1 1 0 8 0 amappl5 104 253 0 239 1 0 1 1 0 8 0 amappl4 96 919 0 888 1 0 1 1 0 8 0 amappl3 88 916 0 907 1 0 1 1 0 8 0 amappl2 80 7096 0 7014 3 1 2 3 0 8 0 amappl1 72 32638 0 32177 25 15 10 20 0 8 0 amappl 80 3201 0 3145 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 17 0 17 1 1 0 1 0 8 0 aobjpl 64 59 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1037 0 1011 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1037 0 1011 1 0 1 1 0 8 0 vmmpekpl 168 11510 0 11470 2 0 2 2 0 8 0 vmmpepl 168 136274 0 133953 162 25 137 137 0 357 36 vmsppl 368 1026 0 1010 2 0 2 2 0 8 0 pdppl 4096 2081 0 2032 7 0 7 7 0 8 0 pvpl 32 371024 0 349058 214 28 186 214 0 265 7 pmappl 232 1036 0 1012 2 0 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 623 0 9 18 0 18 18 0 8 0