uvm_fault(0xffffffff82535d88, 0xffff800000abc074, 0, 1) -> e kernel: page fault trap, code=0 Stopped at rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff82535d88, 0xffff800000abc074, 0, 1) -> e rtable_satoplen(2,ffff800000abbf78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff80001698ad90, count: 0 ddb> trace rtable_satoplen(2,ffff800000abbf78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(6,fffffd8029b54520,ffff800000abbf78,ffff800000abbf58,4) at rtable_lookup+0xe0 sys/net/rtable.c:391 rtrequest_delete(ffff80001698ae30,4,ffff800000b92800,ffff80001698af00,6) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000abbf00,800100,ffff800000abbf58,6) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000abbf00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000abbf00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000abbf00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000b92800,ffff800000abbf00,ffff80001698b280,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff80001698b270,ffff800000b92800,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff80001698b270,ffff800000b92800,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd803ea2ac00,8040691a,ffff80001698b270,ffff8000149149f8) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000149149f8,ffff80001698b388,ffff80001698b3d0) at sys_ioctl+0x5b9 syscall(ffff80001698b450) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,939f4ce3010) at Xsyscall+0x128 end of kernel end trace frame: 0x93c83036890, count: -12 ddb> show registers rdi 0 rsi 0xfd rbp 0xffff80001698acf0 rbx 0xffffffffffffff07 rdx 0xffff800000abbf7c rcx 0xffff800000abc075 rax 0xffff800000abc075 r8 0x4 r9 0x5 r10 0xce7c7a0c283379b3 r11 0x2037f03baf3637f2 r12 0 r13 0xffff800000abc075 r14 0xffffffff8247ee88 inetdomain r15 0x4 rip 0xffffffff817890f0 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff80001698aca0 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb> show proc PROC (syz-executor.0) pid=293208 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800014915160,0xffff800014915b50 process=0xffff8000ffff7450 user=0xffff800016986000, vmspace=0xfffffd803f013220 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 37752 409688 94515 0 2 0 syz-executor.0 *37752 293208 94515 0 7 0x4000000 syz-executor.0 40415 293937 43871 0 2 0 syz-executor.1 40415 4387 43871 0 2 0x4000000 syz-executor.1 40415 388195 43871 0 3 0x4000080 fsleep syz-executor.1 94515 307260 26857 0 2 0x482 syz-executor.0 43871 515903 26857 0 2 0x482 syz-executor.1 47433 164620 1 0 3 0x100083 ttyin getty 99308 90808 0 0 3 0x14200 acct acct 5255 154440 0 0 3 0x14200 bored sosplice 26857 137694 14901 0 3 0x82 thrsleep syz-fuzzer 26857 478415 14901 0 3 0x4000082 thrsleep syz-fuzzer 26857 102604 14901 0 3 0x4000082 kqread syz-fuzzer 26857 1325 14901 0 3 0x4000082 thrsleep syz-fuzzer 26857 18409 14901 0 3 0x4000082 thrsleep syz-fuzzer 26857 257376 14901 0 3 0x4000082 thrsleep syz-fuzzer 26857 210994 14901 0 3 0x4000082 thrsleep syz-fuzzer 26857 495717 14901 0 3 0x4000082 thrsleep syz-fuzzer 14901 407819 26008 0 3 0x10008a pause ksh 26008 294194 38724 0 3 0x92 select sshd 38724 303193 1 0 3 0x80 select sshd 35008 99375 64121 73 3 0x100090 kqread syslogd 64121 318273 1 0 3 0x100082 netio syslogd 97452 196518 1 77 3 0x100090 poll dhclient 44222 247715 1 0 3 0x80 poll dhclient 79997 383613 0 0 2 0x14200 zerothread 2387 132339 0 0 3 0x14200 aiodoned aiodoned 42627 264053 0 0 3 0x14200 syncer update 58300 398319 0 0 3 0x14200 cleaner cleaner 78077 144741 0 0 3 0x14200 reaper reaper 18233 323069 0 0 3 0x14200 pgdaemon pagedaemon 88168 437104 0 0 3 0x14200 bored crynlk 82096 246630 0 0 3 0x14200 bored crypto 77675 517800 0 0 3 0x40014200 acpi0 acpi0 70332 148649 0 0 3 0x14200 bored softnet 57329 444793 0 0 3 0x14200 bored systqmp 9373 497858 0 0 3 0x14200 bored systq 34613 290906 0 0 3 0x40014200 bored softclock 65959 321477 0 0 3 0x40014200 idle0 37323 362765 0 0 3 0x14200 bored smr 1 415863 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 Kern Lim devbuf 9568 7017K 8210K 78643K 16610 0 0 pcb 13 8K 9K 78643K 548 0 0 rtable 114 8K 9K 78643K 1951 0 0 ifaddr 88 18K 18K 78643K 460 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 175 0 0 iov 0 0K 24K 78643K 449 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1221 77K 77K 78643K 3513 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 33 0 0 VM map 12 3K 3K 78643K 26 0 0 sem 12 0K 1K 78643K 385 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 2200 0 0 sigio 0 0K 1K 78643K 348 0 0 proc 49 38K 63K 78643K 1533 0 0 subproc 32 2K 2K 78643K 459 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 140 0 0 in_multi 30 2K 2K 78643K 338 0 0 ether_multi 1 0K 0K 78643K 12 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 78 344K 344K 78643K 78 0 0 exec 0 0K 1K 78643K 733 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 132 104K 113K 78643K 6848 0 0 UVM aobj 130 4K 4K 78643K 141 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 486 0 0 NDP 20 0K 1K 78643K 155 0 0 temp 230 3541K 4179K 78643K 59264 0 0 kqueue 0 0K 0K 78643K 19 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 86 0 80 1 0 1 1 0 8 0 rtpcb 80 284 0 282 1 0 1 1 0 8 0 rtentry 112 406 0 365 2 0 2 2 0 8 0 unpcb 120 1780 0 1770 3 1 2 2 0 8 1 syncache 264 22 0 22 9 8 1 1 0 8 1 tcpqe 32 174 0 174 2 2 0 1 0 8 0 tcpcb 544 1204 0 1200 5 3 2 2 0 8 1 ipq 40 17 0 17 9 8 1 1 0 8 1 ipqe 40 341 0 341 9 8 1 1 0 8 1 inpcb 280 3641 0 3632 22 18 4 4 0 8 3 rttmr 72 3 0 3 2 2 0 1 0 8 0 ip6q 72 2 0 2 1 1 0 1 0 8 0 ip6af 40 6 0 6 1 1 0 1 0 8 0 nd6 48 51 0 48 1 0 1 1 0 8 0 pkpcb 40 6 0 6 3 3 0 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 30 0 30 12 11 1 1 0 8 1 art_heap8 4096 22 0 20 11 8 3 3 0 8 1 art_heap4 256 1737 0 1511 33 16 17 17 0 8 0 art_table 32 1759 0 1531 5 2 3 3 0 8 0 art_node 16 403 0 365 1 0 1 1 0 8 0 sysvmsgpl 40 24 0 16 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 383 0 373 1 0 1 1 0 8 0 shmpl 112 139 0 11 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 4718 0 3319 46 0 46 46 0 8 0 ffsino 240 4718 0 3319 83 0 83 83 0 8 0 nchpl 144 8634 0 8166 61 40 21 61 0 8 0 uvmvnodes 72 6554 0 0 120 0 120 120 0 8 0 vnodes 208 6554 0 0 345 0 345 345 0 8 0 namei 1024 29658 0 29658 13 12 1 1 0 8 1 vcpupl 1984 10 0 0 2 0 2 2 0 8 0 vmpool 520 24 0 14 1 0 1 1 0 8 0 scsiplug 64 2 0 2 2 1 1 1 0 8 1 scxspl 192 46117 0 46117 21 19 2 7 0 8 2 plimitpl 152 215 0 208 1 0 1 1 0 8 0 sigapl 432 2297 0 2283 2 0 2 2 0 8 0 futexpl 56 61071 0 61070 8 7 1 1 0 8 0 knotepl 112 830 0 811 2 1 1 2 0 8 0 kqueuepl 104 537 0 535 1 0 1 1 0 8 0 pipepl 112 2126 0 2107 8 6 2 2 0 8 1 fdescpl 424 2298 0 2283 2 0 2 2 0 8 0 filepl 120 21849 0 21749 23 16 7 7 0 8 3 lockfpl 104 727 0 726 1 0 1 1 0 8 0 lockfspl 48 259 0 258 1 0 1 1 0 8 0 sessionpl 112 43 0 33 1 0 1 1 0 8 0 pgrppl 48 83 0 73 1 0 1 1 0 8 0 ucredpl 96 2244 0 2237 1 0 1 1 0 8 0 zombiepl 144 2283 0 2283 7 6 1 1 0 8 1 processpl 864 2314 0 2283 4 0 4 4 0 8 0 procpl 632 4972 0 4931 5 1 4 5 0 8 0 sosppl 128 436 0 436 11 10 1 1 0 8 1 sockpl 384 5739 0 5718 41 32 9 9 0 8 6 mcl64k 65536 652 0 652 70 66 4 33 0 8 4 mcl16k 16384 19 0 19 8 7 1 1 0 8 1 mcl12k 12288 57 0 57 10 9 1 1 0 8 1 mcl9k 9216 43 0 43 10 9 1 1 0 8 1 mcl8k 8192 97 0 97 10 9 1 1 0 8 1 mcl4k 4096 237 0 237 11 10 1 1 0 8 1 mcl2k2 2112 17 0 17 8 8 0 1 0 8 0 mcl2k 2048 69969 0 69919 27 20 7 15 0 8 0 mtagpl 80 326 0 278 5 4 1 1 0 8 0 mbufpl 256 132183 0 131952 77 58 19 22 0 8 3 bufpl 256 23663 0 15781 494 0 494 494 0 8 0 anonpl 16 333119 0 313567 143 49 94 94 0 62 13 amapchunkpl 152 14326 0 14196 49 40 9 16 0 158 2 amappl16 192 14076 0 12954 155 88 67 69 0 8 8 amappl15 184 51 0 51 2 2 0 1 0 8 0 amappl14 176 283 0 280 1 0 1 1 0 8 0 amappl13 168 764 0 759 1 0 1 1 0 8 0 amappl12 160 259 0 254 1 0 1 1 0 8 0 amappl11 152 448 0 437 1 0 1 1 0 8 0 amappl10 144 297 0 295 1 0 1 1 0 8 0 amappl9 136 980 0 973 1 0 1 1 0 8 0 amappl8 128 433 0 396 2 0 2 2 0 8 0 amappl7 120 400 0 392 1 0 1 1 0 8 0 amappl6 112 408 0 396 1 0 1 1 0 8 0 amappl5 104 559 0 549 1 0 1 1 0 8 0 amappl4 96 2793 0 2760 1 0 1 1 0 8 0 amappl3 88 337 0 330 1 0 1 1 0 8 0 amappl2 80 16312 0 16234 3 1 2 3 0 8 0 amappl1 72 55563 0 55135 29 20 9 20 0 8 0 amappl 80 5617 0 5571 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 64 140 0 11 3 0 3 3 0 8 0 uaddrrnd 24 2322 0 2283 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2322 0 2283 1 0 1 1 0 8 0 vmmpekpl 168 20625 0 20597 2 0 2 2 0 8 0 vmmpepl 168 302009 0 299675 232 94 138 142 0 357 34 vmsppl 272 2297 0 2283 10 9 1 2 0 8 0 pdppl 4096 4650 0 4604 10 4 6 7 0 8 0 pvpl 32 923177 0 900908 393 160 233 295 0 265 49 pmappl 200 2321 0 2297 4 2 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 867 0 224 20 0 20 20 0 8 0