uvm_fault(0xfffffd803f014660, 0x24, 0, 1) -> e kernel: page fault trap, code=0 Stopped at frag6_input+0x762: movl 0x24(%rax),%r14d ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd803f014660, 0x24, 0, 1) -> e frag6_input(ffff800015b39878,ffff800015b39884,2c,18) at frag6_input+0x762 sys/netinet6/frag6.c:321 end trace frame: 0xffff800015b39700, count: 0 ddb> trace frag6_input(ffff800015b39878,ffff800015b39884,2c,18) at frag6_input+0x762 sys/netinet6/frag6.c:321 ip_deliver(ffff800015b39878,ffff800015b39884,2c,18) at ip_deliver+0x2e3 sys/netinet/ip_input.c:665 ip6_input_if(ffff800015b39878,ffff800015b39884,29,0,ffff80000069c000) at ip6_input_if+0x153a ip6_ours sys/netinet6/ip6_input.c:518 [inline] ip6_input_if(ffff800015b39878,ffff800015b39884,29,0,ffff80000069c000) at ip6_input_if+0x153a sys/netinet6/ip6_input.c:340 ipv6_input(ffff80000069c000,fffffd8037c57500) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff80000069c000,fffffd8037c57500,18) at if_input_local+0x121 sys/net/if.c:783 ip6_output(fffffd8037c57700,ffff800000a80b00,fffffd8037a07818,0,0,fffffd8037a077a8) at ip6_output+0xd35 rip6_output(fffffd8037c57700,fffffd8037a08480,ffff800015b39be8,0) at rip6_output+0x4d7 sys/netinet6/raw_ip6.c:481 rip6_usrreq(fffffd8037a08480,9,fffffd8037c57700,0,0,ffff8000ffff3160) at rip6_usrreq+0x5cd sys/netinet6/raw_ip6.c:670 sosend(fffffd8037a08480,0,ffff800015b39e18,0,0,0) at sosend+0x660 sys/kern/uipc_socket.c:524 dofilewritev(ffff8000ffff3160,3,ffff800015b39e18,0,ffff800015b39f20) at dofilewritev+0x1ac sys/kern/sys_generic.c:364 sys_write(ffff8000ffff3160,ffff800015b39eb8,ffff800015b39f20) at sys_write+0x83 sys/kern/sys_generic.c:284 syscall(ffff800015b39f80) at syscall+0x508 Xsyscall(6,0,c,0,3,35d76908010) at Xsyscall+0x128 end of kernel end trace frame: 0x35fcf1671f0, count: -13 ddb> show registers rdi 0 rsi 0 rbp 0xffff800015b39680 rbx 0x600 rdx 0 rcx 0 rax 0 r8 0x30 r9 0 r10 0x5a01cd81f445fed0 r11 0xcf04cae236a16bc r12 0 r13 0xfffffd803e19ceb0 r14 0xfffffd803e19cec0 r15 0xfffffd80047b5054 rip 0xffffffff81c4b992 frag6_input+0x762 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800015b395c0 ss 0x10 frag6_input+0x762: movl 0x24(%rax),%r14d ddb> show proc PROC (syz-executor.0) pid=459576 stat=onproc flags process=0 proc=4000000 pri=82, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2ee8,0xffffffff82570880 process=0xffff8000148a26d8 user=0xffff800015b35000, vmspace=0xfffffd803f014660 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 19272 302791 82859 0 2 0 syz-executor.0 *19272 459576 82859 0 7 0x4000000 syz-executor.0 85868 428719 87619 0 2 0x2 syz-executor.1 82859 305073 87619 0 3 0x82 nanosleep syz-executor.0 99758 172374 1 0 3 0x100083 ttyin getty 17729 134085 0 0 3 0x14200 bored sosplice 91621 90674 0 0 3 0x14200 acct acct 87619 132405 45695 0 3 0x82 kqread syz-fuzzer 87619 498558 45695 0 3 0x4000082 nanosleep syz-fuzzer 87619 246445 45695 0 3 0x4000082 thrsleep syz-fuzzer 87619 201780 45695 0 3 0x4000082 thrsleep syz-fuzzer 87619 157076 45695 0 3 0x4000082 thrsleep syz-fuzzer 87619 269570 45695 0 3 0x4000082 thrsleep syz-fuzzer 87619 483775 45695 0 3 0x4000082 thrsleep syz-fuzzer 45695 421647 33584 0 3 0x10008a pause ksh 33584 167094 42057 0 3 0x92 select sshd 42057 475823 1 0 3 0x80 select sshd 99311 39816 98245 73 3 0x100090 kqread syslogd 98245 377031 1 0 3 0x100082 netio syslogd 81688 264885 1 77 3 0x100090 poll dhclient 31580 435987 1 0 3 0x80 poll dhclient 95507 232699 0 0 2 0x14200 zerothread 30946 355235 0 0 3 0x14200 aiodoned aiodoned 66770 302153 0 0 3 0x14200 syncer update 184 59741 0 0 3 0x14200 cleaner cleaner 81136 89256 0 0 3 0x14200 reaper reaper 87795 215121 0 0 3 0x14200 pgdaemon pagedaemon 61253 150541 0 0 3 0x14200 bored crynlk 70923 465261 0 0 3 0x14200 bored crypto 18255 494867 0 0 3 0x40014200 acpi0 acpi0 73387 329990 0 0 3 0x14200 bored softnet 21097 177469 0 0 3 0x14200 bored systqmp 78525 367465 0 0 3 0x14200 bored systq 91891 405668 0 0 3 0x40014200 bored softclock 36164 458638 0 0 3 0x40014200 idle0 19714 162176 0 0 3 0x14200 bored smr 1 338650 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 9561 6632K 14567K 78643K 17515 0 0 pcb 14 8K 8K 78643K 294 0 0 rtable 111 4K 4K 78643K 1048 0 0 ifaddr 68 15K 16K 78643K 329 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 213 0 0 iov 0 0K 16K 78643K 272 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1207 76K 77K 78643K 3649 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 41 0 0 VM map 2 0K 0K 78643K 8 0 0 sem 12 0K 1K 78643K 263 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 2625 0 0 sigio 1 0K 0K 78643K 48 0 0 proc 42 30K 54K 78643K 956 0 0 subproc 32 2K 2K 78643K 212 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 216 0 0 in_multi 33 2K 2K 78643K 214 0 0 ether_multi 1 0K 0K 78643K 12 0 0 mrt 0 0K 0K 78643K 8 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 596 0 0 pfkey data 0 0K 4K 78643K 4 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 101 21K 39K 78643K 7087 0 0 UVM aobj 103 7K 7K 78643K 118 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 2 0K 1K 78643K 317 0 0 NDP 15 0K 0K 78643K 103 0 0 temp 191 3536K 3611K 78643K 76512 0 0 kqueue 0 0K 0K 78643K 39 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 27 0 21 1 0 1 1 0 8 0 rtpcb 80 135 0 133 1 0 1 1 0 8 0 rtentry 112 156 0 112 2 0 2 2 0 8 0 unpcb 120 827 0 819 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 3464 0 3464 1 1 0 1 0 8 0 tcpcb 544 475 0 470 1 0 1 1 0 8 0 ipq 40 8 0 8 4 4 0 1 0 8 0 ipqe 40 18 0 18 4 4 0 1 0 8 0 inpcb 280 1330 0 1322 3 2 1 2 0 8 0 ip6q 72 3 0 2 3 2 1 1 0 8 0 ip6af 48 5 0 4 3 2 1 1 0 8 0 nd6 48 36 0 30 1 0 1 1 0 8 0 pkpcb 40 19 0 19 7 7 0 1 0 8 0 ppxss 1128 40 0 40 6 6 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 648 0 456 14 2 12 13 0 8 0 art_table 32 649 0 456 2 0 2 2 0 8 0 art_node 16 155 0 115 1 0 1 1 0 8 0 sysvmsgpl 40 32 0 16 1 0 1 1 0 8 0 semapl 112 261 0 251 1 0 1 1 0 8 0 shmpl 112 116 0 15 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5328 0 3916 46 0 46 46 0 8 0 ffsino 240 5328 0 3916 84 0 84 84 0 8 0 nchpl 144 9168 0 7546 61 0 61 61 0 8 0 uvmvnodes 72 7121 0 0 130 0 130 130 0 8 0 vnodes 200 7121 0 0 375 0 375 375 0 8 0 namei 1024 29665 0 29664 3 2 1 1 0 8 0 vmpool 520 6 0 6 3 3 0 1 0 8 0 scsiplug 64 6 0 6 4 4 0 1 0 8 0 scxspl 192 31098 0 31098 14 13 1 7 0 8 1 plimitpl 152 244 0 237 1 0 1 1 0 8 0 sigapl 432 2767 0 2754 2 0 2 2 0 8 0 futexpl 56 41869 0 41869 3 2 1 1 0 8 1 knotepl 112 738 0 719 3 1 2 2 0 8 1 kqueuepl 104 598 0 596 1 0 1 1 0 8 0 pipepl 112 1516 0 1497 4 3 1 2 0 8 0 fdescpl 424 2768 0 2754 2 0 2 2 0 8 0 filepl 120 16077 0 15982 5 1 4 4 0 8 0 lockfpl 104 812 0 812 4 3 1 1 0 8 1 lockfspl 48 271 0 271 4 3 1 1 0 8 1 sessionpl 112 28 0 18 1 0 1 1 0 8 0 pgrppl 48 42 0 32 1 0 1 1 0 8 0 ucredpl 96 2973 0 2965 1 0 1 1 0 8 0 zombiepl 144 2754 0 2754 3 2 1 1 0 8 1 processpl 864 2784 0 2754 4 0 4 4 0 8 0 procpl 632 5933 0 5896 4 0 4 4 0 8 0 sosppl 128 14 0 14 5 5 0 1 0 8 0 sockpl 384 2333 0 2315 5 2 3 3 0 8 1 mcl64k 65536 580 0 580 41 40 1 33 0 8 1 mcl16k 16384 10 0 10 9 8 1 1 0 8 1 mcl12k 12288 47 0 47 8 7 1 1 0 8 1 mcl9k 9216 25 0 25 8 8 0 1 0 8 0 mcl8k 8192 40 0 40 8 7 1 1 0 8 1 mcl4k 4096 139 0 139 5 4 1 1 0 8 1 mcl2k2 2112 17 0 17 9 9 0 1 0 8 0 mcl2k 2048 62755 0 62708 16 9 7 14 0 8 0 mtagpl 80 70 0 59 2 1 1 1 0 8 0 mbufpl 256 114451 0 114341 30 19 11 24 0 8 1 bufpl 256 14829 0 7422 464 0 464 464 0 8 0 anonpl 16 244476 0 232201 114 57 57 68 0 62 3 amapchunkpl 152 13613 0 13509 73 52 21 29 0 158 16 amappl16 192 12614 0 11922 76 39 37 47 0 8 2 amappl15 184 463 0 463 3 3 0 1 0 8 0 amappl14 176 589 0 582 1 0 1 1 0 8 0 amappl13 168 14 0 14 2 2 0 1 0 8 0 amappl12 160 470 0 468 1 0 1 1 0 8 0 amappl11 152 282 0 271 1 0 1 1 0 8 0 amappl10 144 907 0 906 2 1 1 1 0 8 0 amappl9 136 1047 0 1042 1 0 1 1 0 8 0 amappl8 128 583 0 555 1 0 1 1 0 8 0 amappl7 120 880 0 874 1 0 1 1 0 8 0 amappl6 112 263 0 256 1 0 1 1 0 8 0 amappl5 104 668 0 657 1 0 1 1 0 8 0 amappl4 96 2897 0 2871 1 0 1 1 0 8 0 amappl3 88 372 0 361 1 0 1 1 0 8 0 amappl2 80 21190 0 21123 3 1 2 3 0 8 0 amappl1 72 57826 0 57409 25 15 10 19 0 8 0 amappl 80 6309 0 6274 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 dma64 64 259 0 259 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 64 117 0 15 2 0 2 2 0 8 0 uaddrrnd 24 2774 0 2754 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2774 0 2754 1 0 1 1 0 8 0 vmmpekpl 168 20263 0 20237 2 0 2 2 0 8 0 vmmpepl 168 325468 0 323718 229 137 92 105 0 357 10 vmsppl 272 2767 0 2754 3 2 1 2 0 8 0 pdppl 4096 5554 0 5520 6 1 5 6 0 8 0 pvpl 32 778957 0 763568 390 168 222 270 0 265 93 pmappl 200 2773 0 2760 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 690 0 96 17 0 17 17 0 8 0