uvm_fault(0xfffffd803f013660, 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(0xfffffd803f013660, 0x24, 0, 1) -> e frag6_input(ffff8000148fc078,ffff8000148fc084,2c,18) at frag6_input+0x762 sys/netinet6/frag6.c:321 end trace frame: 0xffff8000148fbf00, count: 0 ddb> trace frag6_input(ffff8000148fc078,ffff8000148fc084,2c,18) at frag6_input+0x762 sys/netinet6/frag6.c:321 ip_deliver(ffff8000148fc078,ffff8000148fc084,2c,18) at ip_deliver+0x2e3 sys/netinet/ip_input.c:665 ip6_input_if(ffff8000148fc078,ffff8000148fc084,29,0,ffff80000069c000) at ip6_input_if+0x153a ip6_ours sys/netinet6/ip6_input.c:518 [inline] ip6_input_if(ffff8000148fc078,ffff8000148fc084,29,0,ffff80000069c000) at ip6_input_if+0x153a sys/netinet6/ip6_input.c:340 ipv6_input(ffff80000069c000,fffffd802f4ac100) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171 if_input_local(ffff80000069c000,fffffd802f4ac100,18) at if_input_local+0x121 sys/net/if.c:783 ip6_output(fffffd802f4acd00,ffff800000a49800,fffffd803703aea8,0,0,fffffd803703ae38) at ip6_output+0xd35 rip6_output(fffffd802f4acd00,fffffd803703ba80,ffff8000148fc3e8,0) at rip6_output+0x4d7 sys/netinet6/raw_ip6.c:481 rip6_usrreq(fffffd803703ba80,9,fffffd802f4acd00,0,0,ffff8000ffff38c8) at rip6_usrreq+0x5cd sys/netinet6/raw_ip6.c:670 sosend(fffffd803703ba80,0,ffff8000148fc618,0,0,0) at sosend+0x660 sys/kern/uipc_socket.c:524 dofilewritev(ffff8000ffff38c8,4,ffff8000148fc618,0,ffff8000148fc720) at dofilewritev+0x1ac sys/kern/sys_generic.c:364 sys_write(ffff8000ffff38c8,ffff8000148fc6b8,ffff8000148fc720) at sys_write+0x83 sys/kern/sys_generic.c:284 syscall(ffff8000148fc780) at syscall+0x508 Xsyscall(6,0,c,0,3,428cc22e010) at Xsyscall+0x128 end of kernel end trace frame: 0x42b2358c4e0, count: -13 ddb> show registers rdi 0 rsi 0 rbp 0xffff8000148fbe80 rbx 0x600 rdx 0 rcx 0 rax 0 r8 0x30 r9 0 r10 0xf7fd842b115cf29c r11 0x74505d15029fe09d r12 0 r13 0xfffffd803e1f2ef8 r14 0xfffffd803e1f2f08 r15 0xfffffd80342a7854 rip 0xffffffff8165f522 frag6_input+0x762 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff8000148fbdc0 ss 0x10 frag6_input+0x762: movl 0x24(%rax),%r14d ddb> show proc PROC (syz-executor.0) pid=263359 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2ee8,0xffffffff8257fe00 process=0xffff8000148a3458 user=0xffff8000148f7000, vmspace=0xfffffd803f013660 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 89052 391689 82710 0 2 0 syz-executor.0 *89052 263359 82710 0 7 0x4000000 syz-executor.0 37563 258881 42282 0 2 0x2 syz-executor.1 82710 252402 42282 0 3 0x82 nanosleep syz-executor.0 9754 509270 0 0 3 0x14200 acct acct 5653 457218 1 0 3 0x100083 ttyin getty 12249 29866 0 0 3 0x14200 bored sosplice 42282 517704 7338 0 3 0x82 thrsleep syz-fuzzer 42282 314111 7338 0 3 0x4000082 nanosleep syz-fuzzer 42282 28390 7338 0 3 0x4000082 thrsleep syz-fuzzer 42282 502841 7338 0 3 0x4000082 thrsleep syz-fuzzer 42282 257417 7338 0 3 0x4000082 thrsleep syz-fuzzer 42282 160136 7338 0 3 0x4000082 kqread syz-fuzzer 42282 156877 7338 0 3 0x4000082 thrsleep syz-fuzzer 42282 26186 7338 0 3 0x4000082 thrsleep syz-fuzzer 7338 255128 21783 0 3 0x10008a pause ksh 21783 178276 3687 0 3 0x92 select sshd 3687 246197 1 0 3 0x80 select sshd 37057 66802 17037 73 3 0x100090 kqread syslogd 17037 186411 1 0 3 0x100082 netio syslogd 31610 269190 1 77 3 0x100090 poll dhclient 19402 379327 1 0 3 0x80 poll dhclient 53685 481878 0 0 2 0x14200 zerothread 11378 337345 0 0 3 0x14200 aiodoned aiodoned 45017 449017 0 0 3 0x14200 syncer update 1558 264139 0 0 3 0x14200 cleaner cleaner 23791 441006 0 0 3 0x14200 reaper reaper 28588 42447 0 0 3 0x14200 pgdaemon pagedaemon 86436 156475 0 0 3 0x14200 bored crynlk 87720 3509 0 0 3 0x14200 bored crypto 4965 101548 0 0 3 0x40014200 acpi0 acpi0 24022 197897 0 0 3 0x14200 bored softnet 18562 428848 0 0 3 0x14200 bored systqmp 32173 336359 0 0 3 0x14200 bored systq 12143 498950 0 0 3 0x40014200 bored softclock 56953 198019 0 0 3 0x40014200 idle0 27726 284503 0 0 3 0x14200 bored smr 1 176723 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 9588 6384K 15335K 78643K 44307 0 0 pcb 14 8K 8K 78643K 1394 0 0 rtable 118 4K 5K 78643K 3830 0 0 ifaddr 81 22K 27K 78643K 1253 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 620 0 0 iov 0 0K 32K 78643K 1418 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1194 75K 77K 78643K 13184 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 9K 78643K 178 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 1394 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 13072 0 0 sigio 0 0K 0K 78643K 180 0 0 proc 42 30K 54K 78643K 3007 0 0 subproc 32 2K 2K 78643K 699 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 1262 0 0 in_multi 33 2K 2K 78643K 837 0 0 ether_multi 1 0K 0K 78643K 41 0 0 mrt 0 0K 0K 78643K 26 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 120 530K 530K 78643K 120 0 0 exec 0 0K 1K 78643K 1908 0 0 pfkey data 0 0K 0K 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 111 22K 31K 78643K 31618 0 0 UVM aobj 130 6K 6K 78643K 152 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 1266 0 0 NDP 20 0K 1K 78643K 395 0 0 temp 226 3536K 4176K 78643K 208742 0 0 kqueue 0 0K 0K 78643K 104 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 89 0 83 1 0 1 1 0 8 0 rtpcb 80 633 0 631 1 0 1 1 0 8 0 rtentry 112 495 0 450 2 0 2 2 0 8 0 unpcb 120 4236 0 4228 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 sackhl 24 4 0 4 4 4 0 1 0 8 0 tcpqe 32 1235 0 1235 1 1 0 1 0 8 0 tcpcb 544 2376 0 2371 1 0 1 1 0 8 0 ipq 40 29 0 29 15 15 0 1 0 8 0 ipqe 40 64 0 64 15 15 0 1 0 8 0 inpcb 280 7047 0 7037 34 33 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 48 123 0 117 1 0 1 1 0 8 0 pkpcb 40 56 0 56 19 19 0 1 0 8 0 swfcl 56 6 0 0 1 0 1 1 0 8 0 ppxss 1128 193 0 193 53 53 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1991 0 1794 18 5 13 13 0 8 0 art_table 32 1992 0 1794 2 0 2 2 0 8 0 art_node 16 479 0 439 1 0 1 1 0 8 0 sysvmsgpl 40 38 0 26 1 0 1 1 0 8 0 semapl 112 1392 0 1382 1 0 1 1 0 8 0 shmpl 112 150 0 22 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 21710 0 20275 47 0 47 47 0 8 0 ffsino 240 21710 0 20275 85 0 85 85 0 8 0 nchpl 144 39970 0 38343 62 0 62 62 0 8 0 uvmvnodes 72 8678 0 0 158 0 158 158 0 8 0 vnodes 200 8678 0 0 457 0 457 457 0 8 0 namei 1024 131131 0 131130 15 14 1 1 0 8 0 scsiplug 64 24 0 24 18 18 0 1 0 8 0 scxspl 192 135869 0 135869 36 35 1 7 0 8 1 plimitpl 152 1046 0 1039 1 0 1 1 0 8 0 sigapl 432 13127 0 13114 2 0 2 2 0 8 0 futexpl 56 214969 0 214969 21 20 1 1 0 8 1 knotepl 112 2779 0 2760 2 1 1 2 0 8 0 kqueuepl 104 2927 0 2925 1 0 1 1 0 8 0 pipepl 112 7478 0 7459 15 14 1 2 0 8 0 fdescpl 424 13128 0 13114 2 0 2 2 0 8 0 filepl 120 78540 0 78444 17 13 4 5 0 8 1 lockfpl 104 4457 0 4457 20 19 1 1 0 8 1 lockfspl 48 1475 0 1475 20 19 1 1 0 8 1 sessionpl 112 57 0 47 1 0 1 1 0 8 0 pgrppl 48 189 0 179 1 0 1 1 0 8 0 ucredpl 96 15547 0 15539 1 0 1 1 0 8 0 zombiepl 144 13118 0 13118 5 4 1 1 0 8 1 processpl 864 13148 0 13118 4 0 4 4 0 8 0 procpl 632 28912 0 28874 4 0 4 4 0 8 0 sosppl 128 193 0 193 45 45 0 1 0 8 0 sockpl 384 12081 0 12063 24 21 3 4 0 8 1 mcl64k 65536 2280 0 2280 198 169 29 33 0 8 29 mcl16k 16384 62 0 62 38 38 0 1 0 8 0 mcl12k 12288 227 0 227 48 47 1 1 0 8 1 mcl9k 9216 181 0 181 50 50 0 1 0 8 0 mcl8k 8192 239 0 239 41 41 0 1 0 8 0 mcl4k 4096 691 0 691 21 20 1 1 0 8 1 mcl2k2 2112 72 0 72 35 35 0 1 0 8 0 mcl2k 2048 80936 0 80889 17 10 7 12 0 8 0 mtagpl 80 385 0 375 3 2 1 1 0 8 0 mbufpl 256 199303 0 199200 97 84 13 25 0 8 5 bufpl 256 40238 0 30680 599 1 598 598 0 8 0 anonpl 16 1171600 0 1159230 341 277 64 70 0 62 0 amapchunkpl 152 58702 0 58599 162 156 6 18 0 158 0 amappl16 192 67696 0 66990 439 398 41 49 0 8 5 amappl15 184 1319 0 1315 1 0 1 1 0 8 0 amappl14 176 1578 0 1569 1 0 1 1 0 8 0 amappl13 168 3702 0 3702 6 6 0 1 0 8 0 amappl12 160 1270 0 1267 1 0 1 1 0 8 0 amappl11 152 2790 0 2779 1 0 1 1 0 8 0 amappl10 144 1777 0 1776 5 4 1 1 0 8 0 amappl9 136 2139 0 2135 1 0 1 1 0 8 0 amappl8 128 1553 0 1517 2 0 2 2 0 8 0 amappl7 120 1800 0 1793 1 0 1 1 0 8 0 amappl6 112 2690 0 2679 1 0 1 1 0 8 0 amappl5 104 1742 0 1731 1 0 1 1 0 8 0 amappl4 96 13064 0 13036 1 0 1 1 0 8 0 amappl3 88 2420 0 2408 1 0 1 1 0 8 0 amappl2 80 104074 0 104004 3 1 2 3 0 8 0 amappl1 72 238155 0 237750 25 15 10 19 0 8 0 amappl 80 29817 0 29782 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 64 151 0 22 3 0 3 3 0 8 0 uaddrrnd 24 13128 0 13114 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 13128 0 13114 1 0 1 1 0 8 0 vmmpekpl 168 73442 0 73413 2 0 2 2 0 8 0 vmmpepl 168 1526000 0 1524230 644 549 95 108 0 357 9 vmsppl 272 13127 0 13114 5 4 1 2 0 8 0 pdppl 4096 26262 0 26228 7 2 5 6 0 8 0 pvpl 32 3603480 0 3587968 1081 924 157 273 0 265 16 pmappl 200 13127 0 13114 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 1148 0 390 29 6 23 23 0 8 1