uvm_fault(0xfffffd807f00a450, 0xafdb5ad8, 0, 1) -> e kernel: page fault trap, code=0 Stopped at in6_purgeaddr+0x135: movq 0x8(%r12),%r13 ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xfffffd807f00a450, 0xafdb5ad8, 0, 1) -> e in6_purgeaddr(ffff800000ac9100) at in6_purgeaddr+0x135 sys/netinet6/in6.c:914 end trace frame: 0xffff800023bc3260, count: 0 ddb{1}> trace in6_purgeaddr(ffff800000ac9100) at in6_purgeaddr+0x135 sys/netinet6/in6.c:914 in6_ifdetach(ffff800000ad7800) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:422 if_setrdomain(ffff800000ad7800,0) at if_setrdomain+0x1a2 sys/net/if.c:1845 ifioctl(fffffd807a7cbc68,8020699f,ffff800023bc33b0,ffff800020abf8c8) at ifioctl+0x1303 sys/net/if.c:2103 sys_ioctl(ffff800020abf8c8,ffff800023bc34c8,ffff800023bc3510) at sys_ioctl+0x5b9 syscall(ffff800023bc3590) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800023bc3590) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,4651b433010) at Xsyscall+0x128 end of kernel end trace frame: 0x467bfc24e00, count: -7 ddb{1}> show registers rdi 0xffffffff8113cf79 rtfree+0x59 rsi 0x28804 acpi_pdirpa+0x1466c rbp 0xffff800023bc31f0 rbx 0xffff800000b21c00 rdx 0x28805 acpi_pdirpa+0x1466d rcx 0xffff800020b58000 rax 0 r8 0xffffffff81140454 rt_ifa_dellocal+0x44 r9 0x1 r10 0x18 r11 0x886ea9fe79434ef0 r12 0xafdb5ad0 r13 0 r14 0xffff800000ac9100 r15 0xffff800000ad7800 rip 0xffffffff8162bb25 in6_purgeaddr+0x135 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff800023bc3180 ss 0x10 in6_purgeaddr+0x135: movq 0x8(%r12),%r13 ddb{1}> show proc PROC (syz-executor.1) pid=273903 stat=onproc flags process=0 proc=4000000 pri=80, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff800020abf160,0xffffffff82662210 process=0xffff800020adc380 user=0xffff800023bbe000, vmspace=0xfffffd807f00a450 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 41912 129913 5029 0 2 0 syz-executor.1 *41912 273903 5029 0 7 0x4000000 syz-executor.1 23674 114635 2688 0 2 0 syz-executor.0 23674 375553 2688 0 3 0x4000080 fifow syz-executor.0 2688 139486 79676 0 3 0x82 nanosleep syz-executor.0 5029 168802 79676 0 3 0x82 nanosleep syz-executor.1 73647 166039 1 0 3 0x100083 ttyin getty 9045 387283 0 0 3 0x14200 acct acct 80619 377990 0 0 3 0x14200 bored sosplice 79676 199560 93633 0 3 0x82 thrsleep syz-fuzzer 79676 476284 93633 0 3 0x4000082 thrsleep syz-fuzzer 79676 60580 93633 0 3 0x4000082 thrsleep syz-fuzzer 79676 83359 93633 0 3 0x4000082 kqread syz-fuzzer 79676 289706 93633 0 3 0x4000082 thrsleep syz-fuzzer 79676 388106 93633 0 3 0x4000082 thrsleep syz-fuzzer 79676 160378 93633 0 3 0x4000082 thrsleep syz-fuzzer 79676 139957 93633 0 3 0x4000082 thrsleep syz-fuzzer 79676 300291 93633 0 3 0x4000082 thrsleep syz-fuzzer 79676 165831 93633 0 3 0x4000082 thrsleep syz-fuzzer 93633 124413 15728 0 3 0x10008a pause ksh 15728 366661 16488 0 3 0x92 select sshd 16488 136574 1 0 3 0x80 select sshd 56885 404379 11728 74 3 0x100092 bpf pflogd 11728 35163 1 0 3 0x80 netio pflogd 21853 131309 42954 73 3 0x100090 kqread syslogd 42954 490993 1 0 3 0x100082 netio syslogd 5932 268424 1 77 3 0x100090 poll dhclient 31025 372840 1 0 3 0x80 poll dhclient 317 387591 0 0 2 0x14200 zerothread 90780 332949 0 0 3 0x14200 aiodoned aiodoned 58263 145074 0 0 3 0x14200 syncer update 16780 184522 0 0 3 0x14200 cleaner cleaner 911 144729 0 0 3 0x14200 reaper reaper 50745 15130 0 0 3 0x14200 pgdaemon pagedaemon 33347 133403 0 0 3 0x14200 bored crynlk 85370 452925 0 0 3 0x14200 bored crypto 89336 219103 0 0 3 0x40014200 acpi0 acpi0 672 495742 0 0 3 0x40014200 idle1 800 15665 0 0 3 0x14200 bored softnet 394 372445 0 0 7 0x14200 systqmp 25122 158257 0 0 3 0x14200 bored systq 59223 157940 0 0 3 0x40014200 bored softclock 83816 360295 0 0 3 0x40014200 idle0 27091 110103 0 0 3 0x14200 bored smr 1 306247 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 41912 (syz-executor.1) thread 0xffff800020abf8c8 (273903) exclusive rwlock netlock r = 0 (0xffffffff8250cdb8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 ifioctl+0x12f6 sys/net/if.c:2103 #2 sys_ioctl+0x5b9 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82624c28) #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 9603 7071K 7596K 78643K 17490 0 0 pcb 13 8K 9K 78643K 660 0 0 rtable 142 15K 17K 78643K 1743 0 0 ifaddr 100 20K 21K 78643K 535 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1624 0 0 iov 0 0K 24K 78643K 605 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1219 77K 77K 78643K 3739 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 33 0 0 VM map 17 8K 8K 78643K 27 0 0 sem 9 1K 1K 78643K 9 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 6 17K 25K 78643K 2785 0 0 sigio 0 0K 0K 78643K 40 0 0 proc 61 63K 95K 78643K 1438 0 0 subproc 32 2K 2K 78643K 289 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 303 0 0 in_multi 28 1K 2K 78643K 352 0 0 ether_multi 1 0K 0K 78643K 34 0 0 mrt 0 0K 0K 78643K 18 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 84 371K 371K 78643K 84 0 0 exec 0 0K 1K 78643K 727 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 155 137K 138K 78643K 10890 0 0 UVM aobj 130 4K 4K 78643K 134 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 642 0 0 NDP 24 0K 0K 78643K 164 0 0 temp 220 3565K 4205K 78643K 88878 0 0 kqueue 0 0K 0K 78643K 33 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 43 0 37 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 244 0 242 1 0 1 1 0 8 0 rtentry 112 317 0 262 2 0 2 2 0 8 0 unpcb 120 1753 0 1737 5 4 1 2 0 8 0 syncache 264 41 0 41 6 6 0 1 0 8 0 tcpqe 32 5 0 5 4 4 0 1 0 8 0 tcpcb 544 5582 0 5575 9 7 2 3 0 8 1 inpcb 280 8373 0 8361 14 12 2 4 0 8 1 rttmr 72 7 0 6 2 1 1 1 0 8 0 nd6 48 45 0 42 3 2 1 1 0 8 0 pkpcb 40 11 0 11 5 5 0 1 0 8 0 swfcl 56 4 0 0 1 0 1 1 0 8 0 ppxss 1128 65 0 65 9 9 0 1 0 8 0 pffrag 232 68 0 68 9 8 1 1 0 482 1 pffrnode 88 68 0 68 9 8 1 1 0 8 1 pffrent 40 2272 0 2272 9 8 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 24 232 0 173 1 0 1 1 0 8 0 pfstkey 112 232 0 173 2 0 2 2 0 8 0 pfstate 328 232 0 173 6 0 6 6 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 21 0 17 12 8 4 4 0 8 0 art_heap4 256 1504 0 1178 26 5 21 21 0 8 0 art_table 32 1525 0 1195 3 0 3 3 0 8 0 art_node 16 312 0 261 1 0 1 1 0 8 0 sysvmsgpl 40 47 0 37 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 7 0 0 1 0 1 1 0 8 0 shmpl 112 132 0 4 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5742 0 4328 46 0 46 46 0 8 0 ffsino 272 5742 0 4328 95 0 95 95 0 8 0 nchpl 144 10135 0 9669 60 41 19 60 0 8 0 uvmvnodes 72 5960 0 0 109 0 109 109 0 8 0 vnodes 208 5960 0 0 314 0 314 314 0 8 0 namei 1024 34282 0 34282 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 15 0 0 2 0 2 2 0 8 0 vmpool 552 25 0 10 2 0 2 2 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 31280 0 31280 19 16 3 7 0 8 3 plimitpl 152 259 0 251 1 0 1 1 0 8 0 sigapl 432 2941 0 2925 3 1 2 3 0 8 0 futexpl 56 71881 0 71881 1 0 1 1 0 8 1 knotepl 112 619 0 600 2 1 1 2 0 8 0 kqueuepl 104 711 0 709 1 0 1 1 0 8 0 pipepl 112 2118 0 2099 4 3 1 2 0 8 0 fdescpl 488 2942 0 2925 3 0 3 3 0 8 0 filepl 152 27414 0 27310 15 10 5 7 0 8 0 lockfpl 104 903 0 902 1 0 1 1 0 8 0 lockfspl 48 300 0 299 1 0 1 1 0 8 0 sessionpl 112 36 0 25 1 0 1 1 0 8 0 pgrppl 48 55 0 44 1 0 1 1 0 8 0 ucredpl 96 2873 0 2864 1 0 1 1 0 8 0 zombiepl 144 2926 0 2926 1 0 1 1 0 8 1 processpl 896 2960 0 2926 4 0 4 4 0 8 0 procpl 632 9260 0 9215 6 1 5 5 0 8 1 srpgc 64 25 0 23 7 6 1 1 0 8 0 sosppl 128 62 0 62 10 10 0 1 0 8 0 sockpl 384 10410 0 10380 21 16 5 8 0 8 1 mcl64k 65536 262 0 0 33 0 33 33 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 32 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 18 0 0 3 1 2 3 0 8 0 mcl4k 4096 25 0 0 4 1 3 3 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 169 0 0 19 0 19 19 0 8 0 mtagpl 80 73 0 0 2 0 2 2 0 8 0 mbufpl 256 599 0 0 34 0 34 34 0 8 0 bufpl 256 16112 0 9054 442 0 442 442 0 8 0 anonpl 16 350038 0 329860 179 61 118 118 0 124 16 amapchunkpl 152 21711 0 21314 34 17 17 17 0 158 0 amappl16 192 15084 0 13913 150 82 68 71 0 8 8 amappl15 184 608 0 608 2 2 0 1 0 8 0 amappl14 176 753 0 747 1 0 1 1 0 8 0 amappl13 168 603 0 601 4 3 1 1 0 8 0 amappl12 160 21 0 19 1 0 1 1 0 8 0 amappl11 152 660 0 644 1 0 1 1 0 8 0 amappl10 144 378 0 373 1 0 1 1 0 8 0 amappl9 136 919 0 915 1 0 1 1 0 8 0 amappl8 128 532 0 478 2 0 2 2 0 8 0 amappl7 120 463 0 453 1 0 1 1 0 8 0 amappl6 112 628 0 612 1 0 1 1 0 8 0 amappl5 104 263 0 249 1 0 1 1 0 8 0 amappl4 96 3476 0 3443 1 0 1 1 0 8 0 amappl3 88 663 0 656 1 0 1 1 0 8 0 amappl2 80 22283 0 22198 3 1 2 3 0 8 0 amappl1 72 75977 0 75529 25 15 10 20 0 8 0 amappl 80 9825 0 9770 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 64 133 0 4 3 0 3 3 0 8 0 uaddrrnd 24 2967 0 2925 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2967 0 2925 1 0 1 1 0 8 0 vmmpekpl 168 29332 0 29295 2 0 2 2 0 8 0 vmmpepl 168 379201 0 376699 259 108 151 151 0 357 41 vmsppl 368 2941 0 2925 2 0 2 2 0 8 0 pdppl 4096 5941 0 5885 9 1 8 8 0 8 1 pvpl 32 933190 0 914279 318 89 229 234 0 265 33 pmappl 232 2966 0 2935 3 1 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 700 0 27 20 0 20 20 0 8 0