uvm_fault(0xfffffd807f00a000, 0x12, 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(0xfffffd807f00a000, 0x12, 0, 1) -> e in6_purgeaddr(ffff800000b07800) at in6_purgeaddr+0x135 sys/netinet6/in6.c:914 end trace frame: 0xffff800023b70dc0, count: 0 ddb{1}> trace in6_purgeaddr(ffff800000b07800) at in6_purgeaddr+0x135 sys/netinet6/in6.c:914 in6_ifdetach(ffff800000abd800) at in6_ifdetach+0x74 sys/netinet6/in6_ifattach.c:422 if_setrdomain(ffff800000abd800,0) at if_setrdomain+0x1a2 sys/net/if.c:1829 ifioctl(fffffd80641064c0,8020699f,ffff800023b70f10,ffff800020abe9f8) at ifioctl+0x1303 sys/net/if.c:2087 sys_ioctl(ffff800020abe9f8,ffff800023b71028,ffff800023b71070) at sys_ioctl+0x5b9 syscall(ffff800023b710f0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800023b710f0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,a4de9d69010) at Xsyscall+0x128 end of kernel end trace frame: 0xa50d450c710, count: -7 ddb{1}> show registers rdi 0xffffffff81cd8c29 rtfree+0x59 rsi 0x14b0d acpi_pdirpa+0x975 rbp 0xffff800023b70d50 rbx 0xffff800000b07900 rdx 0x14b0e acpi_pdirpa+0x976 rcx 0xffff800020d5e000 rax 0 r8 0xffffffff81cdc104 rt_ifa_dellocal+0x44 r9 0x1 r10 0x18 r11 0x8dd8cefcc9720139 r12 0xa r13 0 r14 0xffff800000b07800 r15 0xffff800000abd800 rip 0xffffffff82171be5 in6_purgeaddr+0x135 cs 0x8 rflags 0x10206 __ALIGN_SIZE+0xf206 rsp 0xffff800023b70ce0 ss 0x10 in6_purgeaddr+0x135: movq 0x8(%r12),%r13 ddb{1}> show proc PROC (syz-executor.1) pid=147185 stat=onproc flags process=0 proc=4000000 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff800020abe780,0xffff800020abeef8 process=0xffff800020a8ae10 user=0xffff800023b6c000, vmspace=0xfffffd807f00a000 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 18605 382762 48321 0 2 0 syz-executor.0 5217 104522 58406 0 7 0 syz-executor.1 * 5217 147185 58406 0 7 0x4000000 syz-executor.1 48321 249613 55024 0 3 0x82 nanosleep syz-executor.0 58406 173923 55024 0 3 0x82 nanosleep syz-executor.1 74464 344496 0 0 3 0x14200 acct acct 19647 257215 1 0 3 0x100083 ttyin getty 83772 114156 0 0 3 0x14200 bored sosplice 55024 118390 55062 0 3 0x82 thrsleep syz-fuzzer 55024 360646 55062 0 3 0x4000082 nanosleep syz-fuzzer 55024 336111 55062 0 3 0x4000082 nanosleep syz-fuzzer 55024 62950 55062 0 3 0x4000082 thrsleep syz-fuzzer 55024 438188 55062 0 3 0x4000082 thrsleep syz-fuzzer 55024 28336 55062 0 3 0x4000082 thrsleep syz-fuzzer 55024 136227 55062 0 3 0x4000082 thrsleep syz-fuzzer 55024 376856 55062 0 3 0x4000082 thrsleep syz-fuzzer 55024 363598 55062 0 3 0x4000082 kqread syz-fuzzer 55024 367350 55062 0 3 0x4000082 thrsleep syz-fuzzer 55024 70604 55062 0 3 0x4000082 thrsleep syz-fuzzer 55062 446299 29419 0 3 0x10008a pause ksh 29419 34617 54224 0 3 0x92 select sshd 54224 135325 1 0 3 0x80 select sshd 46480 204348 6839 74 3 0x100092 bpf pflogd 6839 34315 1 0 3 0x80 netio pflogd 9361 494259 76629 73 3 0x100090 kqread syslogd 76629 167613 1 0 3 0x100082 netio syslogd 83935 473162 1 77 3 0x100090 poll dhclient 31265 150339 1 0 3 0x80 poll dhclient 25622 406431 0 0 3 0x14200 pgzero zerothread 90343 250872 0 0 3 0x14200 aiodoned aiodoned 28432 492842 0 0 3 0x14200 syncer update 8395 45411 0 0 3 0x14200 cleaner cleaner 55090 491328 0 0 3 0x14200 reaper reaper 44043 323745 0 0 3 0x14200 pgdaemon pagedaemon 31209 290425 0 0 3 0x14200 bored crynlk 59025 148147 0 0 3 0x14200 bored crypto 11690 90988 0 0 3 0x40014200 acpi0 acpi0 32915 303915 0 0 3 0x40014200 idle1 77409 456695 0 0 3 0x14200 bored softnet 4656 489857 0 0 2 0x14200 systqmp 53733 514965 0 0 3 0x14200 bored systq 37493 505209 0 0 3 0x40014200 bored softclock 36466 398103 0 0 3 0x40014200 idle0 54954 85740 0 0 3 0x14200 bored smr 1 130552 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 5217 (syz-executor.1) thread 0xffff800020abe9f8 (147185) exclusive rwlock netlock r = 0 (0xffffffff824895c8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 ifioctl+0x12f6 sys/net/if.c:2087 #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 (0xffffffff82663580) #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 9591 6467K 8239K 78643K 16147 0 0 pcb 13 10K 12K 78643K 623 0 0 rtable 154 15K 16K 78643K 1697 0 0 ifaddr 98 20K 22K 78643K 491 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1632 0 0 iov 0 0K 32K 78643K 1124 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1219 77K 77K 78643K 3316 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 52 0 0 VM map 33 16K 16K 78643K 45 0 0 sem 12 0K 1K 78643K 583 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 6 17K 25K 78643K 2399 0 0 sigio 0 0K 0K 78643K 26 0 0 proc 61 63K 95K 78643K 1332 0 0 subproc 32 2K 2K 78643K 306 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 246 0 0 in_multi 38 2K 2K 78643K 346 0 0 ether_multi 1 0K 0K 78643K 33 0 0 mrt 0 0K 0K 78643K 10 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 78 344K 344K 78643K 78 0 0 exec 0 0K 1K 78643K 663 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 176 248K 248K 78643K 9627 0 0 UVM aobj 130 6K 6K 78643K 159 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 520 0 0 NDP 21 0K 0K 78643K 151 0 0 temp 237 3565K 4200K 78643K 74329 0 0 kqueue 0 0K 0K 78643K 24 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 56 0 51 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 268 0 266 1 0 1 1 0 8 0 rtentry 112 332 0 271 2 0 2 2 0 8 0 unpcb 120 5201 0 5188 12 10 2 2 0 8 1 syncache 264 22 0 22 5 4 1 1 0 8 1 tcpqe 32 126 0 126 3 2 1 1 0 8 1 tcpcb 544 1129 0 1123 6 4 2 2 0 8 1 inpcb 280 3945 0 3935 21 19 2 13 0 8 1 rttmr 72 3 0 3 3 3 0 1 0 8 0 ip6q 72 3 0 3 2 1 1 1 0 8 1 ip6af 40 7 0 7 2 1 1 1 0 8 1 nd6 48 46 0 42 1 0 1 1 0 8 0 pkpcb 40 20 0 20 6 5 1 1 0 8 1 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 62 0 62 7 6 1 1 0 8 1 pffrag 232 54 0 54 8 7 1 1 0 482 1 pffrnode 88 54 0 54 8 7 1 1 0 8 1 pffrent 40 1439 0 1439 8 7 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 24 214 0 167 1 0 1 1 0 8 0 pfstkey 112 214 0 167 3 0 3 3 0 8 0 pfstate 328 214 0 167 7 2 5 7 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 19 0 14 11 5 6 6 0 8 1 art_heap4 256 1572 0 1268 29 9 20 20 0 8 0 art_table 32 1591 0 1282 4 1 3 3 0 8 0 art_node 16 329 0 280 1 0 1 1 0 8 0 sysvmsgpl 40 56 0 36 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 581 0 571 1 0 1 1 0 8 0 shmpl 112 157 0 29 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5197 0 3775 47 0 47 47 0 8 1 ffsino 272 5197 0 3775 96 0 96 96 0 8 1 nchpl 144 9355 0 7748 61 0 61 61 0 8 0 uvmvnodes 72 6251 0 0 114 0 114 114 0 8 0 vnodes 208 6251 0 0 329 0 329 329 0 8 0 namei 1024 31965 0 31965 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 31 0 0 4 0 4 4 0 8 0 vmpool 552 43 0 12 6 3 3 3 0 8 0 scsiplug 64 1 0 1 1 0 1 1 0 8 1 scxspl 192 29296 0 29296 21 20 1 7 0 8 1 plimitpl 152 180 0 172 1 0 1 1 0 8 0 sigapl 432 2550 0 2534 4 2 2 3 0 8 0 futexpl 56 58777 0 58777 2 1 1 1 0 8 1 knotepl 112 582 0 563 3 2 1 2 0 8 0 kqueuepl 104 696 0 694 1 0 1 1 0 8 0 pipepl 112 1774 0 1755 5 4 1 2 0 8 0 fdescpl 488 2551 0 2534 3 0 3 3 0 8 0 filepl 152 26250 0 26149 29 22 7 14 0 8 3 lockfpl 104 1816 0 1815 1 0 1 1 0 8 0 lockfspl 48 534 0 533 1 0 1 1 0 8 0 sessionpl 112 35 0 24 1 0 1 1 0 8 0 pgrppl 48 78 0 67 1 0 1 1 0 8 0 ucredpl 96 2533 0 2524 1 0 1 1 0 8 0 zombiepl 144 2534 0 2534 1 0 1 1 0 8 1 processpl 896 2568 0 2534 4 0 4 4 0 8 0 procpl 632 7882 0 7837 6 1 5 5 0 8 1 srpgc 64 34 0 32 9 8 1 1 0 8 0 sosppl 128 65 0 65 9 9 0 1 0 8 0 sockpl 384 9480 0 9455 46 40 6 22 0 8 2 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 15 0 0 2 0 2 2 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 14 0 0 1 0 1 1 0 8 0 mcl8k 8192 20 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 178 0 0 20 2 18 20 0 8 0 mtagpl 80 48 0 0 1 0 1 1 0 8 0 mbufpl 256 537 0 0 25 0 25 25 0 8 0 bufpl 256 17226 0 10168 442 0 442 442 0 8 0 anonpl 16 341031 0 316265 149 37 112 116 0 124 12 amapchunkpl 152 20658 0 20232 44 24 20 21 0 158 3 amappl16 192 14017 0 12872 112 47 65 70 0 8 6 amappl15 184 509 0 507 1 0 1 1 0 8 0 amappl14 176 647 0 643 1 0 1 1 0 8 0 amappl13 168 247 0 246 4 3 1 1 0 8 0 amappl12 160 134 0 134 2 2 0 1 0 8 0 amappl11 152 125 0 110 1 0 1 1 0 8 0 amappl10 144 293 0 284 1 0 1 1 0 8 0 amappl9 136 1129 0 1125 1 0 1 1 0 8 0 amappl8 128 692 0 639 2 0 2 2 0 8 0 amappl7 120 401 0 390 1 0 1 1 0 8 0 amappl6 112 117 0 102 1 0 1 1 0 8 0 amappl5 104 413 0 398 1 0 1 1 0 8 0 amappl4 96 2891 0 2857 1 0 1 1 0 8 0 amappl3 88 701 0 695 1 0 1 1 0 8 0 amappl2 80 19028 0 18950 3 1 2 3 0 8 0 amappl1 72 68215 0 67777 25 15 10 20 0 8 0 amappl 80 8496 0 8432 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 64 158 0 29 3 0 3 3 0 8 0 uaddrrnd 24 2594 0 2534 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2594 0 2534 1 0 1 1 0 8 0 vmmpekpl 168 24554 0 24514 3 0 3 3 0 8 0 vmmpepl 168 334626 0 332156 240 97 143 165 0 357 31 vmsppl 368 2550 0 2534 2 0 2 2 0 8 0 pdppl 4096 5195 0 5123 11 1 10 10 0 8 1 pvpl 32 883072 0 859424 294 73 221 229 0 265 21 pmappl 232 2593 0 2546 5 2 3 3 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 661 0 24 19 0 19 19 0 8 0