uvm_fault(0xffffffff82620600, 0xffff800000ad4074, 0, 1) -> e kernel: page fault trap, code=0 Stopped at rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff82620600, 0xffff800000ad4074, 0, 1) -> e rtable_satoplen(2,ffff800000ad3f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff800021b95270, count: 0 ddb{1}> trace rtable_satoplen(2,ffff800000ad3f78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd80798f6f20,ffff800000ad3f78,ffff800000ad3f58,4) at rtable_lookup+0xeb sys/net/rtable.c:391 rtrequest_delete(ffff800021b95310,4,ffff800000abc000,ffff800021b953e0,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000ad3f00,800100,ffff800000ad3f58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000ad3f00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000ad3f00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000ad3f00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000abc000,ffff800000ad3f00,ffff800021b95760,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff800021b95750,ffff800000abc000,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff800021b95750,ffff800000abc000,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd8068026940,8040691a,ffff800021b95750,ffff800020abe018) at ifioctl+0xb64 sys/net/if.c:2202 sys_ioctl(ffff800020abe018,ffff800021b95868,ffff800021b958b0) at sys_ioctl+0x5b9 syscall(ffff800021b95930) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800021b95930) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,c0e815561b0) at Xsyscall+0x128 end of kernel end trace frame: 0xc110a8fe730, count: -12 ddb{1}> show registers rdi 0 rsi 0xfd rbp 0xffff800021b951d0 rbx 0xffffffffffffff07 rdx 0xffff800000ad3f7c rcx 0xffff800000ad4075 rax 0xffff800000ad4075 r8 0x4 r9 0x5 r10 0x1103cd0c56dbf9a3 r11 0xed1fbd652c64d408 r12 0 r13 0xffff800000ad4075 r14 0xffffffff824685c0 inetdomain r15 0x4 rip 0xffffffff816e4d60 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff800021b95180 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb{1}> show proc PROC (syz-executor.1) pid=179732 stat=onproc flags process=0 proc=4000000 pri=75, usrpri=75, nice=20 forw=0xffffffffffffffff, list=0xffff800020abec70,0xffffffff826716a0 process=0xffff800020add880 user=0xffff800021b90000, vmspace=0xfffffd807f00aa10 estcpu=25, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 35014 492982 68897 0 3 0x80 nanosleep syz-executor.0 35014 143109 68897 0 3 0x4000080 kqread syz-executor.0 35014 336371 68897 0 3 0x4000080 fsleep syz-executor.0 6275 471019 82406 0 7 0 syz-executor.1 6275 288225 82406 0 3 0x4000080 kqread syz-executor.1 6275 430945 82406 0 3 0x4000080 kqread syz-executor.1 * 6275 179732 82406 0 7 0x4000000 syz-executor.1 82406 156432 32259 0 3 0x82 nanosleep syz-executor.1 44839 191565 0 0 3 0x14200 bored sosplice 68897 96242 32259 0 3 0x82 nanosleep syz-executor.0 32259 122542 93889 0 3 0x82 kqread syz-fuzzer 32259 173376 93889 0 3 0x4000082 thrsleep syz-fuzzer 32259 92527 93889 0 3 0x4000082 thrsleep syz-fuzzer 32259 57807 93889 0 3 0x4000082 thrsleep syz-fuzzer 32259 48564 93889 0 3 0x4000082 thrsleep syz-fuzzer 32259 277775 93889 0 3 0x4000082 thrsleep syz-fuzzer 32259 273155 93889 0 3 0x4000082 thrsleep syz-fuzzer 32259 136891 93889 0 3 0x4000082 thrsleep syz-fuzzer 32259 390288 93889 0 3 0x4000082 thrsleep syz-fuzzer 32259 142737 93889 0 3 0x4000082 thrsleep syz-fuzzer 93889 28154 96623 0 3 0x10008a pause ksh 96623 17401 48419 0 3 0x92 select sshd 64611 287620 1 0 3 0x100083 ttyin getty 48419 414078 1 0 3 0x80 select sshd 91650 389136 54947 74 3 0x100092 bpf pflogd 54947 502151 1 0 3 0x80 netio pflogd 54020 479148 17738 73 3 0x100090 kqread syslogd 17738 142840 1 0 3 0x100082 netio syslogd 15671 173995 1 77 3 0x100090 poll dhclient 60157 424698 1 0 3 0x80 poll dhclient 20737 302394 0 0 3 0x14200 pgzero zerothread 76637 169287 0 0 3 0x14200 aiodoned aiodoned 81093 445505 0 0 3 0x14200 syncer update 14261 177033 0 0 3 0x14200 cleaner cleaner 73822 269000 0 0 3 0x14200 reaper reaper 9778 82402 0 0 3 0x14200 pgdaemon pagedaemon 29239 291535 0 0 3 0x14200 bored crynlk 46456 423366 0 0 3 0x14200 bored crypto 93248 509462 0 0 3 0x40014200 acpi0 acpi0 84455 416203 0 0 3 0x40014200 idle1 75474 221444 0 0 3 0x14200 bored softnet 41667 249574 0 0 3 0x14200 bored systqmp 65453 370645 0 0 3 0x14200 bored systq 67311 367450 0 0 3 0x40014200 bored softclock 65135 480623 0 0 3 0x40014200 idle0 88127 136489 0 0 3 0x14200 bored smr 1 260799 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 6275 (syz-executor.1) thread 0xffff800020abe018 (179732) exclusive rwlock netlock r = 0 (0xffffffff824ca238) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 in_ioctl_change_ifaddr+0x3f #2 in_ioctl+0x205 sys/netinet/in.c:234 #3 ifioctl+0xb64 sys/net/if.c:2202 #4 sys_ioctl+0x5b9 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82625ee0) #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 9527 7060K 7569K 78643K 11619 0 0 pcb 13 8K 8K 78643K 78 0 0 rtable 109 4K 4K 78643K 487 0 0 ifaddr 64 14K 14K 78643K 135 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1506 0 0 iov 0 0K 16K 78643K 63 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1222 77K 77K 78643K 1549 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 1K 78643K 2 0 0 VM map 8 4K 4K 78643K 9 0 0 sem 12 1K 1K 78643K 18 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 6 17K 25K 78643K 374 0 0 sigio 0 0K 0K 78643K 6 0 0 proc 60 63K 83K 78643K 537 0 0 subproc 32 2K 2K 78643K 68 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 82 0 0 in_multi 33 2K 2K 78643K 84 0 0 ether_multi 1 0K 0K 78643K 9 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 42 185K 185K 78643K 42 0 0 exec 0 0K 1K 78643K 276 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 118 71K 71K 78643K 2260 0 0 UVM aobj 11 2K 2K 78643K 11 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 77 0 0 NDP 13 0K 0K 78643K 39 0 0 temp 176 3562K 4198K 78643K 26870 0 0 kqueue 0 0K 0K 78643K 4 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 20 0 14 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 355 0 350 1 0 1 1 0 8 0 rtentry 112 84 0 41 2 0 2 2 0 8 0 unpcb 120 153 0 142 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 68 0 68 1 1 0 1 0 8 0 tcpcb 544 307 0 302 4 3 1 4 0 8 0 inpcb 280 847 0 837 5 3 2 5 0 8 1 ip6q 72 2 0 2 1 1 0 1 0 8 0 ip6af 40 6 0 6 1 1 0 1 0 8 0 nd6 48 9 0 5 1 0 1 1 0 8 0 ppxss 1128 8 0 8 2 1 1 1 0 8 1 pffrag 232 7 0 7 3 2 1 1 0 482 1 pffrnode 88 7 0 7 3 2 1 1 0 8 1 pffrent 40 183 0 183 3 2 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 52 0 11 1 0 1 1 0 8 0 pfstkey 112 52 0 11 2 0 2 2 0 8 0 pfstate 328 52 0 11 4 0 4 4 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 326 0 112 15 0 15 15 0 8 1 art_table 32 327 0 112 2 0 2 2 0 8 0 art_node 16 83 0 44 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 4 2 1 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 16 0 6 1 0 1 1 0 8 0 shmpl 112 9 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1945 0 545 46 0 46 46 0 8 0 ffsino 272 1945 0 545 95 0 95 95 0 8 0 nchpl 144 2690 0 1082 61 0 61 61 0 8 0 uvmvnodes 72 2238 0 0 41 0 41 41 0 8 0 vnodes 208 2238 0 0 118 0 118 118 0 8 0 namei 1024 8100 0 8100 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 552 7 0 1 1 0 1 1 0 8 0 scxspl 192 8758 0 8758 7 6 1 6 0 8 1 plimitpl 152 44 0 36 1 0 1 1 0 8 0 sigapl 432 568 0 552 3 1 2 3 0 8 0 futexpl 56 9786 0 9785 1 0 1 1 0 8 0 knotepl 112 622 0 603 3 0 3 3 0 8 2 kqueuepl 104 352 0 347 1 0 1 1 0 8 0 pipepl 112 342 0 321 1 0 1 1 0 8 0 fdescpl 488 569 0 552 3 0 3 3 0 8 0 filepl 152 4717 0 4605 9 3 6 7 0 8 1 lockfpl 104 162 0 161 1 0 1 1 0 8 0 lockfspl 48 49 0 48 1 0 1 1 0 8 0 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 30 0 19 1 0 1 1 0 8 0 ucredpl 96 432 0 423 1 0 1 1 0 8 0 zombiepl 144 552 0 552 1 0 1 1 0 8 1 processpl 896 585 0 552 4 0 4 4 0 8 0 procpl 632 1378 0 1331 5 0 5 5 0 8 1 srpgc 64 4 0 4 2 1 1 1 0 8 1 sosppl 128 9 0 9 2 1 1 1 0 8 1 sockpl 384 1357 0 1331 9 5 4 8 0 8 1 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 11 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 147 0 0 18 0 18 18 0 8 0 mtagpl 80 28 0 0 1 0 1 1 0 8 0 mbufpl 256 294 0 0 17 0 17 17 0 8 0 bufpl 256 7597 0 1321 393 0 393 393 0 8 0 anonpl 16 81468 0 62859 93 5 88 92 0 124 11 amapchunkpl 152 4030 0 3902 18 12 6 13 0 158 0 amappl16 192 3067 0 2022 67 11 56 64 0 8 3 amappl14 176 144 0 142 1 0 1 1 0 8 0 amappl13 168 8 0 7 1 0 1 1 0 8 0 amappl12 160 49 0 47 1 0 1 1 0 8 0 amappl11 152 58 0 43 1 0 1 1 0 8 0 amappl10 144 44 0 39 1 0 1 1 0 8 0 amappl9 136 801 0 793 1 0 1 1 0 8 0 amappl8 128 371 0 338 2 0 2 2 0 8 0 amappl7 120 73 0 66 1 0 1 1 0 8 0 amappl6 112 74 0 64 1 0 1 1 0 8 0 amappl5 104 184 0 170 1 0 1 1 0 8 0 amappl4 96 835 0 799 2 1 1 2 0 8 0 amappl3 88 220 0 214 1 0 1 1 0 8 0 amappl2 80 3508 0 3430 3 1 2 3 0 8 0 amappl1 72 22542 0 22069 26 16 10 20 0 8 0 amappl 80 1674 0 1627 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 10 0 0 1 0 1 1 0 8 0 uaddrrnd 24 576 0 552 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 576 0 552 1 0 1 1 0 8 0 vmmpekpl 168 8612 0 8578 2 0 2 2 0 8 0 vmmpepl 168 79541 0 77218 156 20 136 136 0 357 35 vmsppl 368 568 0 552 2 0 2 2 0 8 0 pdppl 4096 1159 0 1112 6 0 6 6 0 8 0 pvpl 32 245844 0 223925 214 4 210 214 0 265 30 pmappl 232 575 0 553 2 0 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 564 0 6 16 0 16 16 0 8 0