QàQàuvm_fault(0xfffffd803f014bb0, 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(0xfffffd803f014bb0, 0x24, 0, 1) -> e frag6_input(ffff800016b25898,ffff800016b258a4,2c,18) at frag6_input+0x762 sys/netinet6/frag6.c:321 end trace frame: 0xffff800016b25720, count: 0 ddb> trace frag6_input(ffff800016b25898,ffff800016b258a4,2c,18) at frag6_input+0x762 sys/netinet6/frag6.c:321 ip_deliver(ffff800016b25898,ffff800016b258a4,2c,18) at ip_deliver+0x2e3 sys/netinet/ip_input.c:665 ip6_input_if(ffff800016b25898,ffff800016b258a4,29,0,ffff80000069c000) at ip6_input_if+0x153a ip6_ours sys/netinet6/ip6_input.c:518 [inline] ip6_input_if(ffff800016b25898,ffff800016b258a4,29,0,ffff80000069c000) at ip6_input_if+0x153a sys/netinet6/ip6_input.c:340 ipv6_input(ffff80000069c000,fffffd80351aa900) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff80000069c000,fffffd80351aa900,18) at if_input_local+0x121 sys/net/if.c:783 ip6_output(fffffd80351aa000,ffff800000a79380,fffffd8037017a48,0,0,fffffd80370179d8) at ip6_output+0xd35 rip6_output(fffffd80351aa000,fffffd8037018780,ffff800016b25c08,0) at rip6_output+0x4d7 sys/netinet6/raw_ip6.c:481 rip6_usrreq(fffffd8037018780,9,fffffd80351aa000,0,0,ffff800016b40c70) at rip6_usrreq+0x5cd sys/netinet6/raw_ip6.c:670 sosend(fffffd8037018780,0,ffff800016b25e38,0,0,0) at sosend+0x660 sys/kern/uipc_socket.c:524 dofilewritev(ffff800016b40c70,3,ffff800016b25e38,0,ffff800016b25f40) at dofilewritev+0x1ac sys/kern/sys_generic.c:364 sys_write(ffff800016b40c70,ffff800016b25ed8,ffff800016b25f40) at sys_write+0x83 sys/kern/sys_generic.c:284 syscall(ffff800016b25fa0) at syscall+0x508 Xsyscall(6,0,c,0,3,653bc7b2010) at Xsyscall+0x128 end of kernel end trace frame: 0x655d94f8090, count: -13 ddb> show registers rdi 0 rsi 0 rbp 0xffff800016b256a0 rbx 0x600 rdx 0 rcx 0 rax 0 r8 0x30 r9 0 r10 0x23908c054702bf50 r11 0xb6b67b487b46fda7 r12 0 r13 0xfffffd802ee9ff30 r14 0xfffffd802ee9ff40 r15 0xfffffd8034aa3854 rip 0xffffffff818f50a2 frag6_input+0x762 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800016b255e0 ss 0x10 frag6_input+0x762: movl 0x24(%rax),%r14d ddb> show proc PROC (syz-executor.1) pid=130541 stat=onproc flags process=0 proc=4000000 pri=79, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff800016b418c8,0xffffffff8257f9f0 process=0xffff8000ffff70f0 user=0xffff800016b21000, vmspace=0xfffffd803f014bb0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 22025 187242 5168 0 2 0 syz-executor.1 *22025 130541 5168 0 7 0x4000000 syz-executor.1 44274 504563 0 0 3 0x14200 acct acct 5168 317366 86518 0 3 0x82 nanosleep syz-executor.1 5423 94774 0 0 3 0x14200 bored sosplice 999 350604 86518 0 2 0x2 syz-executor.0 86518 42361 6295 0 3 0x82 kqread syz-fuzzer 86518 386125 6295 0 3 0x4000082 nanosleep syz-fuzzer 86518 158727 6295 0 3 0x4000082 thrsleep syz-fuzzer 86518 249860 6295 0 3 0x4000082 thrsleep syz-fuzzer 86518 463310 6295 0 3 0x4000082 thrsleep syz-fuzzer 86518 393549 6295 0 3 0x4000082 thrsleep syz-fuzzer 86518 215017 6295 0 3 0x4000082 thrsleep syz-fuzzer 6295 361842 51029 0 3 0x10008a pause ksh 51029 165442 45901 0 3 0x92 select sshd 42952 303419 1 0 3 0x100083 ttyin getty 45901 180807 1 0 3 0x80 select sshd 92537 357260 93120 73 3 0x100090 kqread syslogd 93120 353242 1 0 3 0x100082 netio syslogd 30759 34232 1 77 3 0x100090 poll dhclient 50818 5026 1 0 3 0x80 poll dhclient 23142 343285 0 0 2 0x14200 zerothread 48539 386494 0 0 3 0x14200 aiodoned aiodoned 8698 164196 0 0 3 0x14200 syncer update 37004 497161 0 0 3 0x14200 cleaner cleaner 16437 212140 0 0 3 0x14200 reaper reaper 14847 133928 0 0 3 0x14200 pgdaemon pagedaemon 91435 246134 0 0 3 0x14200 bored crynlk 75464 372084 0 0 3 0x14200 bored crypto 34522 192870 0 0 3 0x40014200 acpi0 acpi0 32458 296025 0 0 3 0x14200 bored softnet 97995 270279 0 0 3 0x14200 bored systqmp 75356 405542 0 0 3 0x14200 bored systq 15676 155712 0 0 3 0x40014200 bored softclock 29022 274365 0 0 3 0x40014200 idle0 83882 114892 0 0 3 0x14200 bored smr 1 138075 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 9520 6478K 6930K 78643K 13651 0 0 pcb 14 8K 8K 78643K 144 0 0 rtable 112 12K 12K 78643K 507 0 0 ifaddr 57 13K 13K 78643K 201 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 98 0 0 iov 0 0K 24K 78643K 127 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1212 76K 77K 78643K 2291 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 22 0 0 VM map 2 0K 0K 78643K 4 0 0 sem 12 0K 0K 78643K 132 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 1235 0 0 sigio 1 0K 0K 78643K 26 0 0 proc 42 30K 54K 78643K 523 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 100 0 0 in_multi 33 2K 2K 78643K 78 0 0 ether_multi 1 0K 0K 78643K 3 0 0 mrt 0 0K 0K 78643K 7 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 72 318K 318K 78643K 72 0 0 exec 0 0K 1K 78643K 298 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 90 21K 29K 78643K 3707 0 0 UVM aobj 53 2K 2K 78643K 58 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 2 0K 0K 78643K 168 0 0 NDP 12 0K 0K 78643K 55 0 0 temp 170 3535K 3603K 78643K 17911 0 0 kqueue 0 0K 0K 78643K 6 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 8 0 2 1 0 1 1 0 8 0 rtpcb 80 59 0 57 1 0 1 1 0 8 0 rtentry 112 58 0 14 2 0 2 2 0 8 0 unpcb 120 513 0 505 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 2619 0 2619 1 1 0 1 0 8 0 tcpcb 544 241 0 236 1 0 1 1 0 8 0 ipq 40 2 0 2 1 1 0 1 0 8 0 ipqe 40 6 0 6 1 1 0 1 0 8 0 inpcb 280 678 0 670 1 0 1 1 0 8 0 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 48 1 0 0 1 0 1 1 0 8 0 nd6 48 9 0 3 1 0 1 1 0 8 0 pkpcb 40 22 0 22 4 3 1 1 0 8 1 swfcl 56 1 0 0 1 0 1 1 0 8 0 ppxss 1128 29 0 29 5 4 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 235 0 44 12 0 12 12 0 8 0 art_table 32 236 0 44 2 0 2 2 0 8 0 art_node 16 55 0 15 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 8 1 0 1 1 0 8 0 semapl 112 130 0 120 1 0 1 1 0 8 0 shmpl 112 56 0 5 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 3359 0 1948 46 0 46 46 0 8 0 ffsino 240 3359 0 1948 84 0 84 84 0 8 0 nchpl 144 5313 0 3699 61 0 61 61 0 8 0 uvmvnodes 72 4114 0 0 75 0 75 75 0 8 0 vnodes 200 4114 0 0 217 0 217 217 0 8 0 namei 1024 16075 0 16074 3 2 1 1 0 8 0 vmpool 520 2 0 2 1 1 0 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 15074 0 15074 14 13 1 7 0 8 1 plimitpl 152 135 0 128 1 0 1 1 0 8 0 sigapl 432 1403 0 1390 2 0 2 2 0 8 0 futexpl 56 21077 0 21077 2 1 1 1 0 8 1 knotepl 112 307 0 288 1 0 1 1 0 8 0 kqueuepl 104 277 0 275 1 0 1 1 0 8 0 pipepl 112 954 0 935 4 2 2 2 0 8 1 fdescpl 424 1404 0 1390 2 0 2 2 0 8 0 filepl 120 8518 0 8423 7 2 5 5 0 8 2 lockfpl 104 495 0 495 3 2 1 1 0 8 1 lockfspl 48 164 0 164 3 2 1 1 0 8 1 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 28 0 18 1 0 1 1 0 8 0 ucredpl 96 1600 0 1593 1 0 1 1 0 8 0 zombiepl 144 1390 0 1390 2 1 1 1 0 8 1 processpl 864 1420 0 1390 4 0 4 4 0 8 0 procpl 632 2934 0 2897 4 0 4 4 0 8 0 sosppl 128 13 0 13 4 3 1 1 0 8 1 sockpl 384 1285 0 1267 7 3 4 4 0 8 2 mcl64k 65536 251 0 251 34 33 1 29 0 8 1 mcl16k 16384 5 0 5 4 3 1 1 0 8 1 mcl12k 12288 20 0 20 4 4 0 1 0 8 0 mcl9k 9216 12 0 12 4 3 1 1 0 8 1 mcl8k 8192 23 0 23 4 3 1 1 0 8 1 mcl4k 4096 65 0 65 3 2 1 1 0 8 1 mcl2k2 2112 9 0 9 4 3 1 1 0 8 1 mcl2k 2048 60893 0 60846 16 9 7 13 0 8 0 mtagpl 80 22 0 6 3 2 1 1 0 8 0 mbufpl 256 102799 0 102678 25 15 10 19 0 8 0 bufpl 256 8377 0 3781 288 0 288 288 0 8 0 anonpl 16 134327 0 121717 95 36 59 68 0 62 7 amapchunkpl 152 6042 0 5938 18 13 5 10 0 158 0 amappl16 192 6880 0 6184 63 26 37 47 0 8 1 amappl15 184 2 0 0 1 0 1 1 0 8 0 amappl14 176 676 0 666 1 0 1 1 0 8 0 amappl13 168 6 0 6 1 1 0 1 0 8 0 amappl12 160 583 0 580 1 0 1 1 0 8 0 amappl11 152 50 0 39 1 0 1 1 0 8 0 amappl10 144 63 0 62 1 0 1 1 0 8 0 amappl9 136 573 0 570 1 0 1 1 0 8 0 amappl8 128 158 0 137 1 0 1 1 0 8 0 amappl7 120 34 0 30 1 0 1 1 0 8 0 amappl6 112 52 0 47 1 0 1 1 0 8 0 amappl5 104 717 0 706 1 0 1 1 0 8 0 amappl4 96 1061 0 1036 1 0 1 1 0 8 0 amappl3 88 1392 0 1380 1 0 1 1 0 8 0 amappl2 80 10402 0 10335 3 1 2 3 0 8 0 amappl1 72 33699 0 33288 25 16 9 19 0 8 0 amappl 80 3201 0 3166 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 57 0 5 1 0 1 1 0 8 0 uaddrrnd 24 1406 0 1390 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1406 0 1390 1 0 1 1 0 8 0 vmmpekpl 168 12778 0 12750 2 0 2 2 0 8 0 vmmpepl 168 169243 0 167500 138 56 82 100 0 357 6 vmsppl 272 1403 0 1390 2 1 1 2 0 8 0 pdppl 4096 2818 0 2784 6 1 5 6 0 8 0 pvpl 32 369047 0 353430 215 60 155 165 0 265 28 pmappl 200 1405 0 1392 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 488 0 71 14 0 14 14 0 8 0