uvm_fault(0xfffffd806bc0a330, 0x4, 0, 1) -> e kernel: page fault trap, code=0 Stopped at pfi_address_add+0x1eb: movl 0x4(%rax),%eax ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd806bc0a330, 0x4, 0, 1) -> e pfi_address_add(0,2,0) at pfi_address_add+0x1eb sys/net/pf_if.c:585 end trace frame: 0xffff80001d784b50, count: 0 ddb> trace pfi_address_add(0,2,0) at pfi_address_add+0x1eb sys/net/pf_if.c:585 pfi_instance_add(ffff800000ac6800,0,c3) at pfi_instance_add+0x5e5 pfi_table_update(ffff800000aeef40,ffff800000ad4b00,0,c3) at pfi_table_update+0x174 pfi_kif_update(ffff800000ad4b00) at pfi_kif_update+0xba pfi_dynaddr_update sys/net/pf_if.c:466 [inline] pfi_kif_update(ffff800000ad4b00) at pfi_kif_update+0xba sys/net/pf_if.c:442 pfi_kif_update(ffff8000006b5600) at pfi_kif_update+0x121 if_hooks_run(ffff800000ac6850) at if_hooks_run+0xc5 sys/net/if.c:955 in_ifdetach(ffff800000ac6800) at in_ifdetach+0x7c sys/netinet/in.c:967 if_detach(ffff800000ac6800) at if_detach+0x140 sys/net/if.c:1039 tun_clone_destroy(ffff800000ac6800) at tun_clone_destroy+0x1c7 sys/net/if_tun.c:326 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:477 spec_close(ffff80001d784ee0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd805d7d1680,7,fffffd806c3bfa80,ffff80001d6aa388) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80576e5b50,ffff80001d6aa388) at vn_closefile+0xd2 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80576e5b50,ffff80001d6aa388) at vn_closefile+0xd2 sys/kern/vfs_vnops.c:614 fdrop(fffffd80576e5b50,ffff80001d6aa388) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd80576e5b50,ffff80001d6aa388) at closef+0x117 sys/kern/kern_descrip.c:1263 fdfree(ffff80001d6aa388) at fdfree+0x100 sys/kern/kern_descrip.c:1195 exit1(ffff80001d6aa388,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff80001d6aa388,19) at postsig+0x4b2 sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff80001d6aa388,19) at postsig+0x4b2 sys/kern/kern_sig.c:1415 userret(ffff80001d6aa388) at userret+0x159 sys/kern/kern_sig.c:1872 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x7f7fffff5df0, count: -20 ddb> show registers rdi 0x20 rsi 0 rbp 0xffff80001d784ab0 rbx 0 rdx 0 rcx 0xffff800000654000 rax 0 r8 0xffffffff81ab0ff1 pfi_instance_add+0xf1 r9 0x1 r10 0x2 r11 0xf9aa5ebda7f0cc09 r12 0 r13 0x2 r14 0xffff800000654000 r15 0 rip 0xffffffff81ab173b pfi_address_add+0x1eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001d784a40 ss 0x10 pfi_address_add+0x1eb: movl 0x4(%rax),%eax ddb> show proc PROC (syz-executor.0) pid=75656 stat=onproc flags process=a proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80001d6a99c8,0xffff80001d6a9288 process=0xffff80001d6c4e90 user=0xffff80001d780000, vmspace=0xfffffd806bc0a330 estcpu=36, cpticks=2, pctcpu=0.2 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 82112 510136 0 0 3 0x14200 bored sosplice 95188 390397 31507 0 3 0x2 biowait syz-executor.1 31507 185529 76801 0 3 0x82 thrsleep syz-fuzzer 31507 515086 76801 0 3 0x4000082 nanosleep syz-fuzzer 31507 217039 76801 0 3 0x4000082 thrsleep syz-fuzzer 31507 473126 76801 0 3 0x4000082 thrsleep syz-fuzzer 31507 122866 76801 0 3 0x4000082 kqread syz-fuzzer 31507 512866 76801 0 3 0x4000082 thrsleep syz-fuzzer 31507 379533 76801 0 3 0x4000082 thrsleep syz-fuzzer 31507 451101 76801 0 3 0x4000082 thrsleep syz-fuzzer 76801 201169 59434 0 3 0x10008a pause ksh 59434 275831 42011 0 3 0x92 select sshd 93544 408325 1 0 3 0x100083 ttyin getty 42011 55221 1 0 3 0x80 select sshd 9422 410398 8328 73 3 0x100090 kqread syslogd 8328 305274 1 0 3 0x100082 netio syslogd 28470 246263 1 77 2 0x100090 dhclient 69630 453740 1 0 3 0x80 poll dhclient 648 272106 0 0 3 0x14200 bored smr 10091 212184 0 0 2 0x14200 zerothread 53849 483020 0 0 3 0x14200 aiodoned aiodoned 87731 322342 0 0 3 0x14200 syncer update 60924 212010 0 0 3 0x14200 cleaner cleaner 23006 326332 0 0 3 0x14200 reaper reaper 41152 106623 0 0 3 0x14200 pgdaemon pagedaemon 84150 79720 0 0 3 0x14200 bored crynlk 33579 360429 0 0 3 0x14200 bored crypto 22808 347660 0 0 3 0x40014200 acpi0 acpi0 78250 336820 0 0 3 0x14200 bored softnet 33806 287124 0 0 2 0x14200 systqmp 81285 357295 0 0 3 0x14200 bored systq 215 323778 0 0 3 0x40014200 bored softclock 79186 433340 0 0 3 0x40014200 idle0 1 262804 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 9458 6326K 6913K 78643K 11558 0 pcb 13 8K 8K 78643K 43 0 rtable 93 13K 17K 78643K 390 0 ifaddr 47 11K 12K 78643K 114 0 counters 20 16K 16K 78643K 24 0 ioctlops 0 0K 4K 78643K 63 0 iov 0 0K 12K 78643K 38 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1501 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 0K 0K 78643K 2 0 sem 12 1K 1K 78643K 26 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 195K 288K 78643K 12938 0 file desc 4 9K 21K 78643K 294 0 sigio 0 0K 0K 78643K 6 0 proc 49 38K 54K 78643K 376 0 subproc 23 1K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 26 0 in_multi 40 2K 2K 78643K 108 0 ether_multi 1 0K 0K 78643K 5 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 221 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 117 39K 39K 78643K 1496 0 UVM aobj 11 2K 2K 78643K 13 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 34 0 NDP 6 0K 0K 78643K 22 0 temp 80 3852K 3916K 78643K 3901 0 kqueue 3 4K 8K 78643K 17 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 4 1 0 1 1 0 8 0 rtpcb 80 27 0 25 1 0 1 1 0 8 0 rtentry 112 55 0 26 2 1 1 2 0 8 0 unpcb 120 179 0 171 1 0 1 1 0 8 0 syncache 264 5 0 5 2 1 1 1 0 8 1 tcpqe 32 151 0 151 1 1 0 1 0 8 0 tcpcb 544 107 0 103 1 0 1 1 0 8 0 inpcb 296 469 0 462 3 1 2 2 0 8 1 nd6 48 16 0 13 1 0 1 1 0 8 0 ppxss 1136 1 0 1 1 1 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pfosfp 40 1 0 0 1 0 1 1 0 8 0 pfosfpen 112 2 0 0 1 0 1 1 0 8 0 pfrke_plain 160 4 0 2 1 0 1 1 0 8 0 pfrktable 1344 66 0 62 2 0 2 2 0 8 1 pftag 88 8 0 8 1 0 1 1 0 8 1 pfstkey 112 4 0 4 1 1 0 1 0 8 0 pfstate 328 2 0 2 1 1 0 1 0 8 0 pfrule 1360 18 0 12 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 188 0 44 12 3 9 12 0 8 0 art_table 32 189 0 44 2 0 2 2 0 8 0 art_node 16 54 0 24 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 0 1 0 1 1 0 8 0 semupl 112 6 0 6 3 2 1 1 0 8 1 semapl 112 24 0 14 1 0 1 1 0 8 0 shmpl 112 10 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1746 0 348 88 0 88 88 0 8 0 ffsino 240 1746 0 348 83 0 83 83 0 8 0 nchpl 144 2351 0 751 60 0 60 60 0 8 0 rtmask 32 2 0 1 1 0 1 1 0 8 0 uvmvnodes 72 2052 0 0 38 0 38 38 0 8 0 vnodes 208 2052 0 0 108 0 108 108 0 8 0 namei 1024 6195 0 6195 2 1 1 1 0 8 1 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 528 2 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 20 0 16 1 0 1 1 0 8 0 scxspl 192 6989 0 6988 1 0 1 1 0 8 0 plimitpl 152 40 0 33 1 0 1 1 0 8 0 sigapl 424 481 0 453 4 0 4 4 0 8 0 futexpl 56 5957 0 5957 2 1 1 1 0 8 1 knotepl 112 73 0 56 1 0 1 1 0 8 0 kqueuepl 144 32 0 28 1 0 1 1 0 8 0 pipepl 272 110 0 101 1 0 1 1 0 8 0 fdescpl 432 466 0 453 2 0 2 2 0 8 0 filepl 120 2730 0 2646 4 0 4 4 0 8 1 lockfpl 104 57 0 56 1 0 1 1 0 8 0 lockfspl 48 24 0 23 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 47 0 37 1 0 1 1 0 8 0 ucredpl 96 203 0 196 1 0 1 1 0 8 0 zombiepl 144 454 0 453 1 0 1 1 0 8 0 processpl 928 481 0 453 4 0 4 4 0 8 0 procpl 624 802 0 767 5 1 4 4 0 8 0 sosppl 128 4 0 4 1 0 1 1 0 8 1 sockpl 400 675 0 658 5 1 4 4 0 8 2 mcl64k 65536 265 0 265 33 7 26 33 0 8 26 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl12k 12288 7 0 7 3 2 1 1 0 8 1 mcl9k 9216 2 0 2 2 2 0 1 0 8 0 mcl8k 8192 10 0 10 2 1 1 1 0 8 1 mcl4k 4096 33 0 33 4 3 1 1 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 94912 0 94868 19 12 7 15 0 8 1 mtagpl 96 106 0 106 4 1 3 3 0 8 3 mbufpl 256 150716 0 150558 41 14 27 27 0 8 3 bufpl 280 3849 0 126 266 0 266 266 0 8 0 anonpl 16 61271 0 44698 85 8 77 83 0 107 9 amapchunkpl 152 1924 0 1801 11 5 6 10 0 158 0 amappl16 192 2400 0 1484 58 11 47 58 0 8 0 amappl15 184 131 0 129 1 0 1 1 0 8 0 amappl14 176 26 0 21 1 0 1 1 0 8 0 amappl13 168 158 0 154 1 0 1 1 0 8 0 amappl12 160 8 0 4 1 0 1 1 0 8 0 amappl11 152 43 0 34 1 0 1 1 0 8 0 amappl10 144 25 0 18 1 0 1 1 0 8 0 amappl9 136 318 0 316 1 0 1 1 0 8 0 amappl8 128 338 0 295 2 0 2 2 0 8 0 amappl7 120 105 0 94 1 0 1 1 0 8 0 amappl6 112 24 0 20 1 0 1 1 0 8 0 amappl5 104 517 0 505 1 0 1 1 0 8 0 amappl4 96 552 0 527 1 0 1 1 0 8 0 amappl3 88 117 0 112 1 0 1 1 0 8 0 amappl2 80 3033 0 2976 2 0 2 2 0 8 0 amappl1 72 19324 0 18925 24 15 9 17 0 8 0 amappl 80 1022 0 983 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 18 0 17 1 0 1 1 0 8 0 aobjpl 64 12 0 2 1 0 1 1 0 8 0 uaddrrnd 24 468 0 453 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 468 0 453 1 0 1 1 0 8 0 vmmpekpl 168 7045 0 7015 2 0 2 2 0 8 0 vmmpepl 168 63939 0 62025 123 26 97 116 0 357 7 vmsppl 272 467 0 453 3 1 2 2 0 8 1 pdppl 4096 942 0 908 5 0 5 5 0 8 0 pvpl 32 185182 0 165715 197 6 191 197 0 265 31 pmappl 200 467 0 453 1 0 1 1 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 312 0 46 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace pfi_address_add(0,2,0) at pfi_address_add+0x1eb sys/net/pf_if.c:585 pfi_instance_add(ffff800000ac6800,0,c3) at pfi_instance_add+0x5e5 pfi_table_update(ffff800000aeef40,ffff800000ad4b00,0,c3) at pfi_table_update+0x174 pfi_kif_update(ffff800000ad4b00) at pfi_kif_update+0xba pfi_dynaddr_update sys/net/pf_if.c:466 [inline] pfi_kif_update(ffff800000ad4b00) at pfi_kif_update+0xba sys/net/pf_if.c:442 pfi_kif_update(ffff8000006b5600) at pfi_kif_update+0x121 if_hooks_run(ffff800000ac6850) at if_hooks_run+0xc5 sys/net/if.c:955 in_ifdetach(ffff800000ac6800) at in_ifdetach+0x7c sys/netinet/in.c:967 if_detach(ffff800000ac6800) at if_detach+0x140 sys/net/if.c:1039 tun_clone_destroy(ffff800000ac6800) at tun_clone_destroy+0x1c7 sys/net/if_tun.c:326 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:477 spec_close(ffff80001d784ee0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd805d7d1680,7,fffffd806c3bfa80,ffff80001d6aa388) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80576e5b50,ffff80001d6aa388) at vn_closefile+0xd2 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80576e5b50,ffff80001d6aa388) at vn_closefile+0xd2 sys/kern/vfs_vnops.c:614 fdrop(fffffd80576e5b50,ffff80001d6aa388) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd80576e5b50,ffff80001d6aa388) at closef+0x117 sys/kern/kern_descrip.c:1263 fdfree(ffff80001d6aa388) at fdfree+0x100 sys/kern/kern_descrip.c:1195 exit1(ffff80001d6aa388,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff80001d6aa388,19) at postsig+0x4b2 sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff80001d6aa388,19) at postsig+0x4b2 sys/kern/kern_sig.c:1415 userret(ffff80001d6aa388) at userret+0x159 sys/kern/kern_sig.c:1872 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x7f7fffff5df0, count: -20 ddb> machine ddbcpu 1 No such command ddb> trace pfi_address_add(0,2,0) at pfi_address_add+0x1eb sys/net/pf_if.c:585 pfi_instance_add(ffff800000ac6800,0,c3) at pfi_instance_add+0x5e5 pfi_table_update(ffff800000aeef40,ffff800000ad4b00,0,c3) at pfi_table_update+0x174 pfi_kif_update(ffff800000ad4b00) at pfi_kif_update+0xba pfi_dynaddr_update sys/net/pf_if.c:466 [inline] pfi_kif_update(ffff800000ad4b00) at pfi_kif_update+0xba sys/net/pf_if.c:442 pfi_kif_update(ffff8000006b5600) at pfi_kif_update+0x121 if_hooks_run(ffff800000ac6850) at if_hooks_run+0xc5 sys/net/if.c:955 in_ifdetach(ffff800000ac6800) at in_ifdetach+0x7c sys/netinet/in.c:967 if_detach(ffff800000ac6800) at if_detach+0x140 sys/net/if.c:1039 tun_clone_destroy(ffff800000ac6800) at tun_clone_destroy+0x1c7 sys/net/if_tun.c:326 tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:477 spec_close(ffff80001d784ee0) at spec_close+0x311 sys/kern/spec_vnops.c:560 VOP_CLOSE(fffffd805d7d1680,7,fffffd806c3bfa80,ffff80001d6aa388) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174 vn_closefile(fffffd80576e5b50,ffff80001d6aa388) at vn_closefile+0xd2 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd80576e5b50,ffff80001d6aa388) at vn_closefile+0xd2 sys/kern/vfs_vnops.c:614 fdrop(fffffd80576e5b50,ffff80001d6aa388) at fdrop+0xc2 sys/kern/kern_descrip.c:1279 closef(fffffd80576e5b50,ffff80001d6aa388) at closef+0x117 sys/kern/kern_descrip.c:1263 fdfree(ffff80001d6aa388) at fdfree+0x100 sys/kern/kern_descrip.c:1195 exit1(ffff80001d6aa388,0,19,1) at exit1+0x32c sys/kern/kern_exit.c:197 postsig(ffff80001d6aa388,19) at postsig+0x4b2 sigexit sys/kern/kern_sig.c:1483 [inline] postsig(ffff80001d6aa388,19) at postsig+0x4b2 sys/kern/kern_sig.c:1415 userret(ffff80001d6aa388) at userret+0x159 sys/kern/kern_sig.c:1872 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x7f7fffff5df0, count: -20