g íàŸ2tj" 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, 0xffff800000b0906e, 0, 1) -> e rtable_satoplen(2,ffff800000b08f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff8000235a98f0, count: 0 ddb{1}> trace rtable_satoplen(2,ffff800000b08f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd807dc08220,ffff800000b08f78,ffff800000b08f58,4) at rtable_lookup+0xeb sys/net/rtable.c:391 rtrequest_delete(ffff8000235a9990,4,ffff800000aff000,ffff8000235a9a60,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000b08f00,800100,ffff800000b08f58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_ioctl_change_ifaddr(8040691a,ffff8000235a9cf0,ffff800000aff000,1) at in_ioctl_change_ifaddr+0x355 in_remove_prefix sys/netinet/in.c:738 [inline] in_ioctl_change_ifaddr(8040691a,ffff8000235a9cf0,ffff800000aff000,1) at in_ioctl_change_ifaddr+0x355 in_ifscrub sys/netinet/in.c:562 [inline] in_ioctl_change_ifaddr(8040691a,ffff8000235a9cf0,ffff800000aff000,1) at in_ioctl_change_ifaddr+0x355 sys/netinet/in.c:432 in_ioctl(8040691a,ffff8000235a9cf0,ffff800000aff000,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd806e97f608,8040691a,ffff8000235a9cf0,ffff800020acf660) at ifioctl+0xb64 sys/net/if.c:2202 sys_ioctl(ffff800020acf660,ffff8000235a9e08,ffff8000235a9e50) at sys_ioctl+0x5b9 syscall(ffff8000235a9ed0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff8000235a9ed0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,37adae8a1b0) at Xsyscall+0x128 end of kernel end trace frame: 0x37dcf624cb0, count: -10 ddb{1}> show registers rdi 0 rsi 0xf7 rbp 0xffff8000235a9850 rbx 0xffffffffffffff0d rdx 0xffff800000b08f7c rcx 0xffff800000b0906f rax 0xffff800000b0906f r8 0x4 r9 0x7 r10 0x2c3531738c7c5c53 r11 0x15c78ed1b2f688c2 r12 0 r13 0xffff800000b0906f r14 0xffffffff824685c0 inetdomain r15 0x4 rip 0xffffffff816e4d60 rtable_satoplen+0x150 cs 0x8 rflags 0x10293 __ALIGN_SIZE+0xf293 rsp 0xffff8000235a9800 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb{1}> show proc PROC (syz-executor.0) pid=11654 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ace518,0xffffffff826716a0 process=0xffff800020adca80 user=0xffff8000235a4000, vmspace=0xfffffd807f00a730 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 99578 347196 78340 0 7 0 syz-executor.0 99578 298496 78340 0 3 0x4000080 fsleep syz-executor.0 99578 102673 78340 0 3 0x4000080 fsleep syz-executor.0 *99578 11654 78340 0 7 0x4000000 syz-executor.0 4506 136578 8064 0 3 0x82 nanosleep syz-executor.1 78340 358486 8064 0 3 0x82 nanosleep syz-executor.0 96478 105928 0 0 3 0x14200 acct acct 3083 118254 1 0 3 0x100083 ttyin getty 27048 180682 0 0 3 0x14200 bored sosplice 8064 371306 76497 0 3 0x82 thrsleep syz-fuzzer 8064 367911 76497 0 3 0x4000082 nanosleep syz-fuzzer 8064 23682 76497 0 3 0x4000082 thrsleep syz-fuzzer 8064 46880 76497 0 3 0x4000082 thrsleep syz-fuzzer 8064 511092 76497 0 3 0x4000082 thrsleep syz-fuzzer 8064 505677 76497 0 3 0x4000082 kqread syz-fuzzer 8064 261673 76497 0 3 0x4000082 thrsleep syz-fuzzer 8064 97877 76497 0 3 0x4000082 thrsleep syz-fuzzer 8064 423847 76497 0 3 0x4000082 thrsleep syz-fuzzer 8064 216381 76497 0 3 0x4000082 thrsleep syz-fuzzer 76497 495170 86589 0 3 0x10008a pause ksh 86589 456783 65028 0 3 0x92 select sshd 65028 158647 1 0 3 0x80 select sshd 29699 123542 72100 74 3 0x100092 bpf pflogd 72100 114707 1 0 3 0x80 netio pflogd 59539 245156 66166 73 3 0x100090 kqread syslogd 66166 336091 1 0 3 0x100082 netio syslogd 98171 207509 1 77 3 0x100090 poll dhclient 44754 316060 1 0 3 0x80 poll dhclient 974 349347 0 0 3 0x14200 pgzero zerothread 90818 438964 0 0 3 0x14200 aiodoned aiodoned 3006 131302 0 0 3 0x14200 syncer update 53208 131651 0 0 3 0x14200 cleaner cleaner 71977 189192 0 0 3 0x14200 reaper reaper 38958 321197 0 0 3 0x14200 pgdaemon pagedaemon 42154 74040 0 0 3 0x14200 bored crynlk 18035 504953 0 0 3 0x14200 bored crypto 74041 426720 0 0 3 0x40014200 acpi0 acpi0 4505 332985 0 0 3 0x40014200 idle1 67155 439042 0 0 3 0x14200 bored softnet 38858 17192 0 0 3 0x14200 bored systqmp 46254 477304 0 0 3 0x14200 bored systq 79076 57777 0 0 3 0x40014200 bored softclock 94695 454193 0 0 3 0x40014200 idle0 22300 416350 0 0 3 0x14200 bored smr 1 224553 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 99578 (syz-executor.0) thread 0xffff800020acf660 (11654) 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 9595 7078K 14614K 78643K 18796 0 0 pcb 15 10K 12K 78643K 612 0 0 rtable 102 12K 13K 78643K 1982 0 0 ifaddr 86 19K 21K 78643K 579 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1660 0 0 iov 0 0K 24K 78643K 881 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1222 77K 77K 78643K 4009 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 40 0 0 VM map 43 21K 22K 78643K 53 0 0 sem 12 0K 0K 78643K 1097 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 5 13K 25K 78643K 2773 0 0 sigio 0 0K 0K 78643K 40 0 0 proc 62 63K 95K 78643K 1438 0 0 subproc 32 2K 2K 78643K 344 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 1K 78643K 276 0 0 in_multi 27 1K 2K 78643K 418 0 0 ether_multi 1 0K 0K 78643K 33 0 0 mrt 0 0K 0K 78643K 15 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 90 397K 397K 78643K 90 0 0 exec 0 0K 1K 78643K 749 0 0 pfkey data 0 0K 0K 78643K 2 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 188 366K 366K 78643K 10736 0 0 UVM aobj 130 4K 4K 78643K 137 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 689 0 0 NDP 21 0K 0K 78643K 186 0 0 temp 236 3565K 4200K 78643K 95076 0 0 kqueue 0 0K 0K 78643K 18 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 64 0 58 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 282 0 280 1 0 1 1 0 8 0 rtentry 112 364 0 328 2 0 2 2 0 8 0 unpcb 120 1396 0 1383 1 0 1 1 0 8 0 syncache 264 19 0 19 8 7 1 1 0 8 1 sackhl 24 3 0 3 2 2 0 1 0 8 0 tcpqe 32 18 0 18 8 7 1 1 0 8 1 tcpcb 544 1726 0 1721 40 27 13 13 0 8 12 inpcb 280 4664 0 4652 38 29 9 9 0 8 8 rttmr 72 2 0 2 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 60 0 58 1 0 1 1 0 8 0 pkpcb 40 13 0 13 6 5 1 1 0 8 1 swfcl 56 3 0 0 1 0 1 1 0 8 0 ppxss 1128 81 0 81 11 10 1 1 0 8 1 pffrag 232 91 0 91 11 10 1 1 0 482 1 pffrnode 88 90 0 90 11 10 1 1 0 8 1 pffrent 40 2798 0 2798 11 10 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 24 241 0 203 1 0 1 1 0 8 0 pfstkey 112 241 0 203 2 0 2 2 0 8 0 pfstate 328 241 0 203 7 2 5 5 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 10 0 8 6 3 3 3 0 8 1 art_heap4 256 1747 0 1545 31 15 16 17 0 8 0 art_table 32 1757 0 1553 4 1 3 3 0 8 0 art_node 16 362 0 328 1 0 1 1 0 8 0 sysvmsgpl 40 31 0 19 1 0 1 1 0 8 0 semapl 112 1095 0 1085 1 0 1 1 0 8 0 shmpl 112 135 0 7 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5437 0 4024 46 0 46 46 0 8 0 ffsino 272 5437 0 4024 95 0 95 95 0 8 0 nchpl 144 9885 0 9409 61 40 21 61 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 208 5926 0 0 312 0 312 312 0 8 0 namei 1024 38941 0 38941 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 42 0 1 6 0 6 6 0 8 0 vmpool 552 51 0 10 3 0 3 3 0 8 0 scsiplug 64 2 0 2 1 1 0 1 0 8 0 scxspl 192 33415 0 33415 28 27 1 7 0 8 1 plimitpl 152 279 0 271 1 0 1 1 0 8 0 sigapl 432 2921 0 2906 3 1 2 3 0 8 0 futexpl 56 71396 0 71394 2 1 1 1 0 8 0 knotepl 112 833 0 814 3 2 1 3 0 8 0 kqueuepl 104 1033 0 1031 10 6 4 4 0 8 3 pipepl 112 2678 0 2659 8 6 2 2 0 8 1 fdescpl 488 2922 0 2906 3 0 3 3 0 8 0 filepl 152 26900 0 26796 45 33 12 14 0 8 8 lockfpl 104 936 0 935 1 0 1 1 0 8 0 lockfspl 48 309 0 308 1 0 1 1 0 8 0 sessionpl 112 38 0 27 1 0 1 1 0 8 0 pgrppl 48 64 0 53 1 0 1 1 0 8 0 ucredpl 96 2684 0 2675 1 0 1 1 0 8 0 zombiepl 144 2906 0 2905 5 4 1 1 0 8 0 processpl 896 2939 0 2905 4 0 4 4 0 8 0 procpl 632 8911 0 8865 6 1 5 5 0 8 0 srpgc 64 23 0 23 10 9 1 1 0 8 1 sosppl 128 38 0 38 11 10 1 1 0 8 1 sockpl 384 6413 0 6386 51 40 11 14 0 8 8 mcl64k 65536 272 0 0 34 11 23 34 0 8 1 mcl16k 16384 11 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 12 0 0 2 0 2 2 0 8 0 mcl4k 4096 25 0 0 3 0 3 3 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 272 0 0 33 5 28 33 0 8 0 mtagpl 80 56 0 0 1 0 1 1 0 8 0 mbufpl 256 1114 0 0 55 0 55 55 0 8 0 bufpl 256 14505 0 7457 441 0 441 441 0 8 0 anonpl 16 384014 0 366092 156 74 82 96 0 124 0 amapchunkpl 152 21585 0 21453 36 29 7 13 0 158 0 amappl16 192 17012 0 15853 129 64 65 69 0 8 2 amappl15 184 132 0 131 1 0 1 1 0 8 0 amappl14 176 319 0 313 1 0 1 1 0 8 0 amappl13 168 441 0 441 3 3 0 1 0 8 0 amappl12 160 9 0 7 2 1 1 1 0 8 0 amappl11 152 597 0 579 1 0 1 1 0 8 0 amappl10 144 421 0 417 1 0 1 1 0 8 0 amappl9 136 1416 0 1409 1 0 1 1 0 8 0 amappl8 128 947 0 908 2 0 2 2 0 8 0 amappl7 120 549 0 543 1 0 1 1 0 8 0 amappl6 112 596 0 579 1 0 1 1 0 8 0 amappl5 104 288 0 274 1 0 1 1 0 8 0 amappl4 96 3513 0 3475 2 1 1 2 0 8 0 amappl3 88 215 0 204 1 0 1 1 0 8 0 amappl2 80 21495 0 21421 3 1 2 3 0 8 0 amappl1 72 75637 0 75191 25 14 11 20 0 8 0 amappl 80 9554 0 9489 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 64 136 0 7 3 0 3 3 0 8 0 uaddrrnd 24 2973 0 2906 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2973 0 2906 1 0 1 1 0 8 0 vmmpekpl 168 27348 0 27301 4 1 3 3 0 8 0 vmmpepl 168 383216 0 380792 341 193 148 171 0 357 33 vmsppl 368 2921 0 2906 2 0 2 2 0 8 0 pdppl 4096 5953 0 5873 13 2 11 11 0 8 0 pvpl 32 1023555 0 1003732 342 150 192 219 0 265 9 pmappl 232 2972 0 2916 5 1 4 4 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 766 0 67 20 0 20 20 0 8 0