uvm_fault(0xffffffff825f4ea0, 0xffff800000ae7074, 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(0xffffffff825f4ea0, 0xffff800000ae7074, 0, 1) -> e rtable_satoplen(2,ffff800000ae6f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff800020b43220, count: 0 ddb{1}> trace rtable_satoplen(2,ffff800000ae6f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd806f209520,ffff800000ae6f78,ffff800000ae6f58,4) at rtable_lookup+0xeb sys/net/rtable.c:391 rtrequest_delete(ffff800020b432c0,4,ffff800000ab4000,ffff800020b43390,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000ae6f00,800100,ffff800000ae6f58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000ae6f00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000ae6f00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000ae6f00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000ab4000,ffff800000ae6f00,ffff800020b43710,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff800020b43700,ffff800000ab4000,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff800020b43700,ffff800000ab4000,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd806f6c8000,8040691a,ffff800020b43700,ffff800020ace518) at ifioctl+0xb64 sys/net/if.c:2202 sys_ioctl(ffff800020ace518,ffff800020b43818,ffff800020b43860) at sys_ioctl+0x5b9 syscall(ffff800020b438e0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800020b438e0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,cf20579c0e0) at Xsyscall+0x128 end of kernel end trace frame: 0xcf453bc3a00, count: -12 ddb{1}> show registers rdi 0 rsi 0xfd rbp 0xffff800020b43180 rbx 0xffffffffffffff07 rdx 0xffff800000ae6f7c rcx 0xffff800000ae7075 rax 0xffff800000ae7075 r8 0x4 r9 0x5 r10 0x25b03bac0c868e07 r11 0x1ab321b02d079a65 r12 0 r13 0xffff800000ae7075 r14 0xffffffff824cb908 inetdomain r15 0x4 rip 0xffffffff816afad0 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff800020b43130 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb{1}> show proc PROC (syz-executor.0) pid=361832 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020acf8d8,0xffffffff82651048 process=0xffff800020a4b888 user=0xffff800020b3e000, vmspace=0xfffffd807f00bb80 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 66080 38378 89131 0 2 0 syz-executor.0 66080 78300 89131 0 7 0x4000000 syz-executor.0 *66080 361832 89131 0 7 0x4000000 syz-executor.0 75610 298314 0 0 3 0x14200 acct acct 89131 221991 43391 0 3 0x82 nanosleep syz-executor.0 86987 483448 0 0 3 0x14200 bored sosplice 76768 214505 43391 0 3 0x2 biowait syz-executor.1 43391 94053 90655 0 3 0x82 thrsleep syz-fuzzer 43391 65873 90655 0 3 0x4000082 nanosleep syz-fuzzer 43391 354038 90655 0 3 0x4000082 kqread syz-fuzzer 43391 390426 90655 0 3 0x4000082 thrsleep syz-fuzzer 43391 88928 90655 0 3 0x4000082 thrsleep syz-fuzzer 43391 467313 90655 0 3 0x4000082 thrsleep syz-fuzzer 43391 289044 90655 0 3 0x4000082 thrsleep syz-fuzzer 43391 332969 90655 0 3 0x4000082 thrsleep syz-fuzzer 43391 44949 90655 0 3 0x4000082 thrsleep syz-fuzzer 43391 296514 90655 0 3 0x4000082 nanosleep syz-fuzzer 90655 234193 15097 0 3 0x10008a pause ksh 15097 506929 90174 0 3 0x92 select sshd 32074 367057 1 0 3 0x100083 ttyin getty 90174 463408 1 0 3 0x80 select sshd 15904 2716 56239 74 3 0x100092 bpf pflogd 56239 482519 1 0 3 0x80 netio pflogd 68916 148416 68888 73 3 0x100090 kqread syslogd 68888 21189 1 0 3 0x100082 netio syslogd 94374 229507 1 77 3 0x100090 poll dhclient 17088 399338 1 0 3 0x80 poll dhclient 76104 251155 0 0 2 0x14200 zerothread 60471 261522 0 0 3 0x14200 aiodoned aiodoned 21264 500951 0 0 3 0x14200 syncer update 17175 144037 0 0 3 0x14200 cleaner cleaner 76453 448717 0 0 3 0x14200 reaper reaper 24171 11939 0 0 3 0x14200 pgdaemon pagedaemon 69054 203139 0 0 3 0x14200 bored crynlk 39926 296532 0 0 3 0x14200 bored crypto 64769 234359 0 0 3 0x40014200 acpi0 acpi0 81155 129790 0 0 3 0x40014200 idle1 1995 371170 0 0 3 0x14200 bored softnet 2722 407422 0 0 3 0x14200 bored systqmp 6010 36587 0 0 3 0x14200 bored systq 24805 147639 0 0 3 0x40014200 bored softclock 98476 240374 0 0 3 0x40014200 idle0 59070 182349 0 0 3 0x14200 bored smr 1 269455 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 66080 (syz-executor.0) thread 0xffff800020ace518 (361832) exclusive rwlock netlock r = 0 (0xffffffff824d2b38) #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 (0xffffffff82672458) #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 Process 76768 (syz-executor.1) thread 0xffff800020ab09f8 (214505) exclusive rrwlock inode r = 0 (0xfffffd80661d0d60) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x447 sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #3 VOP_LOCK+0xf0 sys/kern/vfs_vops.c:615 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:574 #5 vget+0x1c3 sys/kern/vfs_subr.c:672 #6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1323 #8 ufs_lookup+0x14b4 sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:91 #10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #11 namei+0x63c sys/kern/vfs_lookup.c:249 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1785 #13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ac625e8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x447 sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #3 VOP_LOCK+0xf0 sys/kern/vfs_vops.c:615 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:574 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x63c sys/kern/vfs_lookup.c:249 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1785 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9501 6400K 6918K 78643K 11139 0 0 pcb 13 8K 8K 78643K 77 0 0 rtable 104 3K 4K 78643K 342 0 0 ifaddr 54 12K 13K 78643K 102 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1482 0 0 iov 0 0K 16K 78643K 27 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1216 76K 77K 78643K 1423 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 4 0 0 VM map 4 2K 2K 78643K 6 0 0 sem 12 0K 0K 78643K 95 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 5 13K 25K 78643K 250 0 0 sigio 0 0K 0K 78643K 4 0 0 proc 61 63K 83K 78643K 503 0 0 subproc 32 2K 2K 78643K 51 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 23 0 0 in_multi 33 2K 2K 78643K 58 0 0 ether_multi 1 0K 0K 78643K 5 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 54 238K 238K 78643K 54 0 0 exec 0 0K 1K 78643K 235 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 107 22K 22K 78643K 1781 0 0 UVM aobj 20 2K 2K 78643K 22 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 1 0K 0K 78643K 89 0 0 NDP 10 0K 0K 78643K 28 0 0 temp 150 3557K 3621K 78643K 15966 0 0 kqueue 0 0K 0K 78643K 5 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 10 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 47 0 45 1 0 1 1 0 8 0 rtentry 112 57 0 15 2 0 2 2 0 8 0 unpcb 120 137 0 127 1 0 1 1 0 8 0 syncache 264 5 0 5 2 2 0 1 0 8 0 tcpcb 544 101 0 97 1 0 1 1 0 8 0 inpcb 280 562 0 549 3 0 3 3 0 8 2 nd6 48 6 0 2 1 0 1 1 0 8 0 ppxss 1128 6 0 6 2 1 1 1 0 8 1 pffrag 232 6 0 6 1 1 0 1 0 482 0 pffrnode 88 6 0 6 1 1 0 1 0 8 0 pffrent 40 260 0 260 1 1 0 1 0 8 0 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 33 0 5 1 0 1 1 0 8 0 pfstkey 112 33 0 5 1 0 1 1 0 8 0 pfstate 328 33 0 5 3 0 3 3 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 257 0 46 14 0 14 14 0 8 0 art_table 32 258 0 46 2 0 2 2 0 8 0 art_node 16 56 0 18 1 0 1 1 0 8 0 sysvmsgpl 40 33 0 21 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 93 0 83 1 0 1 1 0 8 0 shmpl 112 20 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1776 0 371 46 0 46 46 0 8 0 ffsino 272 1776 0 371 95 0 95 95 0 8 0 nchpl 144 2412 0 808 61 0 61 61 0 8 0 uvmvnodes 72 1963 0 0 36 0 36 36 0 8 0 vnodes 208 1963 0 0 104 0 104 104 0 8 0 namei 1024 6817 0 6817 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 552 4 0 2 1 0 1 1 0 8 0 scxspl 192 6789 0 6788 8 7 1 7 0 8 0 plimitpl 152 46 0 38 1 0 1 1 0 8 0 sigapl 432 447 0 432 3 1 2 3 0 8 0 futexpl 56 5153 0 5153 1 0 1 1 0 8 1 knotepl 112 146 0 127 3 2 1 3 0 8 0 kqueuepl 104 68 0 66 1 0 1 1 0 8 0 pipepl 112 276 0 257 2 0 2 2 0 8 1 fdescpl 488 448 0 432 3 0 3 3 0 8 0 filepl 152 3282 0 3176 8 1 7 7 0 8 2 lockfpl 104 71 0 70 1 0 1 1 0 8 0 lockfspl 48 31 0 30 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 19 0 8 1 0 1 1 0 8 0 ucredpl 96 319 0 310 1 0 1 1 0 8 0 zombiepl 144 432 0 432 1 0 1 1 0 8 1 processpl 896 465 0 432 4 0 4 4 0 8 0 procpl 632 971 0 927 6 1 5 5 0 8 0 srpgc 64 2 0 2 1 1 0 1 0 8 0 sosppl 128 3 0 3 1 1 0 1 0 8 0 sockpl 384 746 0 721 7 0 7 7 0 8 4 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 177 0 0 22 0 22 22 0 8 0 mtagpl 80 10 0 0 1 0 1 1 0 8 0 mbufpl 256 283 0 0 16 0 16 16 0 8 0 bufpl 256 6731 0 1317 339 0 339 339 0 8 0 anonpl 16 68506 0 49518 97 7 90 90 0 124 10 amapchunkpl 152 2509 0 2393 7 0 7 7 0 158 0 amappl16 192 2634 0 1532 73 9 64 68 0 8 8 amappl15 184 17 0 16 1 0 1 1 0 8 0 amappl14 176 33 0 32 1 0 1 1 0 8 0 amappl13 168 56 0 53 2 1 1 1 0 8 0 amappl12 160 8 0 7 1 0 1 1 0 8 0 amappl11 152 55 0 39 1 0 1 1 0 8 0 amappl10 144 159 0 155 1 0 1 1 0 8 0 amappl9 136 632 0 626 1 0 1 1 0 8 0 amappl8 128 182 0 157 1 0 1 1 0 8 0 amappl7 120 195 0 188 1 0 1 1 0 8 0 amappl6 112 74 0 65 1 0 1 1 0 8 0 amappl5 104 147 0 132 1 0 1 1 0 8 0 amappl4 96 717 0 681 2 1 1 2 0 8 0 amappl3 88 116 0 111 1 0 1 1 0 8 0 amappl2 80 2683 0 2606 3 1 2 3 0 8 0 amappl1 72 19916 0 19473 25 15 10 20 0 8 0 amappl 80 1234 0 1194 1 0 1 1 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 21 0 2 1 0 1 1 0 8 0 uaddrrnd 24 452 0 432 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 452 0 432 1 0 1 1 0 8 0 vmmpekpl 168 7727 0 7692 2 0 2 2 0 8 0 vmmpepl 168 63609 0 61332 158 19 139 141 0 357 37 vmsppl 368 447 0 432 2 0 2 2 0 8 0 pdppl 4096 911 0 870 6 0 6 6 0 8 0 pvpl 32 206510 0 184844 217 11 206 206 0 265 26 pmappl 232 451 0 434 2 0 2 2 0 8 1 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 508 0 3 15 0 15 15 0 8 0