login: uvm_fault(0xffffffff8257b240, 0xffff800000acb074, 0, 1) -> e kernel: page fault trap, code=0 Stopped at rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff8257b240, 0xffff800000acb074, 0, 1) -> e rtable_satoplen(2,ffff800000acaf78) at rtable_satoplen+0x150 sys/net/rtable.c:894 end trace frame: 0xffff800021b68fc0, count: 0 ddb{0}> trace rtable_satoplen(2,ffff800000acaf78) at rtable_satoplen+0x150 sys/net/rtable.c:894 rtable_lookup(0,fffffd807e9a3120,ffff800000acaf78,ffff800000acaf58,4) at rtable_lookup+0xeb sys/net/rtable.c:391 rtrequest_delete(ffff800021b69060,4,ffff800000a68000,ffff800021b69130,0) at rtrequest_delete+0xe3 sys/net/route.c:775 rt_ifa_del(ffff800000acaf00,800100,ffff800000acaf58,0) at rt_ifa_del+0x3c3 sys/net/route.c:1191 in_purgeaddr(ffff800000acaf00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:738 [inline] in_purgeaddr(ffff800000acaf00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:562 [inline] in_purgeaddr(ffff800000acaf00) at in_purgeaddr+0xc6 sys/netinet/in.c:678 in_ifinit(ffff800000a68000,ffff800000acaf00,ffff800021b694b0,1) at in_ifinit+0x234 sys/netinet/in.c:664 in_ioctl_change_ifaddr(8040691a,ffff800021b694a0,ffff800000a68000,1) at in_ioctl_change_ifaddr+0x5de sys/netinet/in.c:452 in_ioctl(8040691a,ffff800021b694a0,ffff800000a68000,1) at in_ioctl+0x205 sys/netinet/in.c:234 ifioctl(fffffd806f6cd780,8040691a,ffff800021b694a0,ffff800020ab0018) at ifioctl+0xb64 sys/net/if.c:2202 sys_ioctl(ffff800020ab0018,ffff800021b695b8,ffff800021b69600) at sys_ioctl+0x5b9 syscall(ffff800021b69680) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800021b69680) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,7a7b5afc010) at Xsyscall+0x128 end of kernel end trace frame: 0x7aa44bac000, count: -12 ddb{0}> show registers rdi 0 rsi 0xfd rbp 0xffff800021b68f20 rbx 0xffffffffffffff07 rdx 0xffff800000acaf7c rcx 0xffff800000acb075 rax 0xffff800000acb075 r8 0x4 r9 0x5 r10 0xcc0d5ce9225d7efc r11 0xe53648df962d1336 r12 0 r13 0xffff800000acb075 r14 0xffffffff825165d0 inetdomain r15 0x4 rip 0xffffffff81b500e0 rtable_satoplen+0x150 cs 0x8 rflags 0x10283 __ALIGN_SIZE+0xf283 rsp 0xffff800021b68ed0 ss 0x10 rtable_satoplen+0x150: movzbl 0xffffffffffffffff(%r13),%r12d ddb{0}> show proc PROC (syz-executor.0) pid=229776 stat=onproc flags process=0 proc=4000000 pri=52, usrpri=52, nice=20 forw=0xffffffffffffffff, list=0xffff800020ab18c8,0xffffffff8264c6f8 process=0xffff800020adc700 user=0xffff800021b64000, vmspace=0xfffffd807f00a8a0 estcpu=6, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 47938 426216 48223 0 2 0 syz-executor.0 *47938 229776 48223 0 7 0x4000000 syz-executor.0 71904 302040 43006 0 7 0x2 syz-executor.1 48223 505210 43006 0 3 0x82 nanosleep syz-executor.0 43006 432161 59802 0 3 0x82 thrsleep syz-fuzzer 43006 375266 59802 0 2 0x4000482 syz-fuzzer 43006 117570 59802 0 3 0x4000082 thrsleep syz-fuzzer 43006 386685 59802 0 3 0x4000082 kqread syz-fuzzer 43006 157710 59802 0 2 0x4000482 syz-fuzzer 43006 470282 59802 0 3 0x4000082 thrsleep syz-fuzzer 43006 131547 59802 0 3 0x4000082 thrsleep syz-fuzzer 43006 472489 59802 0 3 0x4000082 thrsleep syz-fuzzer 43006 446036 59802 0 3 0x4000082 thrsleep syz-fuzzer 43006 509816 59802 0 3 0x4000082 thrsleep syz-fuzzer 59802 523118 94676 0 3 0x10008a pause ksh 94676 58289 5811 0 3 0x92 select sshd 12537 51361 1 0 3 0x100083 ttyin getty 5811 137051 1 0 3 0x80 select sshd 65073 108965 13110 74 3 0x100092 bpf pflogd 13110 523701 1 0 3 0x80 netio pflogd 77794 243626 73399 73 3 0x100090 kqread syslogd 73399 311232 1 0 3 0x100082 netio syslogd 19069 240772 1 77 3 0x100090 poll dhclient 2897 444519 1 0 3 0x80 poll dhclient 33230 353157 0 0 3 0x14200 pgzero zerothread 29098 359673 0 0 3 0x14200 aiodoned aiodoned 21783 7346 0 0 3 0x14200 syncer update 93588 448776 0 0 3 0x14200 cleaner cleaner 71302 511826 0 0 3 0x14200 reaper reaper 58133 521442 0 0 3 0x14200 pgdaemon pagedaemon 89520 5491 0 0 3 0x14200 bored crynlk 59171 457820 0 0 3 0x14200 bored crypto 62787 58900 0 0 3 0x40014200 acpi0 acpi0 58585 94482 0 0 3 0x40014200 idle1 71345 253738 0 0 3 0x14200 bored softnet 64342 137473 0 0 3 0x14200 bored systqmp 17649 379407 0 0 3 0x14200 bored systq 57098 434248 0 0 3 0x40014200 bored softclock 20742 94666 0 0 3 0x40014200 idle0 66949 210081 0 0 3 0x14200 bored smr 1 280388 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 47938 (syz-executor.0) thread 0xffff800020ab0018 (229776) exclusive rwlock netlock r = 0 (0xffffffff824e8728) #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 (0xffffffff8266bc58) #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 Process 71904 (syz-executor.1) thread 0xffff800020ab1160 (302040) exclusive rrwlock inode r = 0 (0xfffffd806e19fb38) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x447 sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #3 ufs_ihashins+0x45 sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x13e sys/ufs/ffs/ffs_vfsops.c:1352 #5 ffs_inode_alloc+0x1cf sys/ufs/ffs/ffs_alloc.c:392 #6 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1164 #7 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 #8 domkdirat+0x121 sys/kern/vfs_syscalls.c:2983 #9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ac741a8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x447 sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #3 VOP_LOCK+0xf0 sys/kern/vfs_vops.c:615 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:574 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x63c sys/kern/vfs_lookup.c:249 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:2968 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9490 6649K 6843K 78643K 10851 0 0 pcb 13 8K 8K 78643K 35 0 0 rtable 114 4K 4K 78643K 266 0 0 ifaddr 45 11K 12K 78643K 74 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1469 0 0 iov 0 0K 8K 78643K 6 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1220 77K 77K 78643K 1318 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 3 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 10 1K 1K 78643K 10 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 5 13K 25K 78643K 97 0 0 proc 60 63K 83K 78643K 435 0 0 subproc 32 2K 2K 78643K 34 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 4 0 0 in_multi 33 2K 2K 78643K 33 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 36 159K 159K 78643K 36 0 0 exec 0 0K 1K 78643K 217 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 109 22K 22K 78643K 1244 0 0 UVM aobj 4 2K 2K 78643K 4 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 18 0 0 NDP 7 0K 0K 78643K 19 0 0 temp 137 3558K 3628K 78643K 5057 0 0 kqueue 0 0K 0K 78643K 4 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 7 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 31 0 29 1 0 1 1 0 8 0 rtentry 112 48 0 1 2 0 2 2 0 8 0 unpcb 120 45 0 35 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 170 0 170 1 1 0 1 0 8 0 tcpcb 544 34 0 30 1 0 1 1 0 8 0 inpcb 280 121 0 113 2 0 2 2 0 8 1 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 3 0 3 1 0 1 1 0 8 1 pffrag 232 2 0 2 1 0 1 1 0 482 1 pffrnode 88 2 0 2 1 0 1 1 0 8 1 pffrent 40 90 0 90 1 0 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 16 0 0 1 0 1 1 0 8 0 pfstkey 112 16 0 0 1 0 1 1 0 8 0 pfstate 328 16 0 0 2 0 2 2 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 256 224 0 0 14 0 14 14 0 8 0 art_table 32 225 0 0 2 0 2 2 0 8 0 art_node 16 47 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1534 0 127 46 0 46 46 0 8 0 ffsino 272 1534 0 127 95 1 94 95 0 8 0 nchpl 144 1890 0 274 61 0 61 61 0 8 0 uvmvnodes 72 1658 0 0 31 0 31 31 0 8 0 vnodes 208 1658 0 0 88 0 88 88 0 8 0 namei 1024 5037 0 5036 1 0 1 1 0 8 0 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 5195 0 5195 8 2 6 7 0 8 6 plimitpl 152 17 0 9 1 0 1 1 0 8 0 sigapl 432 297 0 282 3 1 2 3 0 8 0 futexpl 56 1578 0 1578 1 0 1 1 0 8 1 knotepl 112 61 0 42 1 0 1 1 0 8 0 kqueuepl 104 14 0 12 1 0 1 1 0 8 0 pipepl 112 170 0 151 1 0 1 1 0 8 0 fdescpl 488 298 0 282 3 0 3 3 0 8 0 filepl 152 1668 0 1567 5 0 5 5 0 8 1 lockfpl 104 17 0 16 1 0 1 1 0 8 0 lockfspl 48 8 0 7 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 96 0 87 1 0 1 1 0 8 0 zombiepl 144 282 0 282 1 0 1 1 0 8 1 processpl 896 313 0 282 4 0 4 4 0 8 0 procpl 632 476 0 435 5 0 5 5 0 8 1 sockpl 384 198 0 178 3 0 3 3 0 8 1 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 10 0 0 2 0 2 2 0 8 0 mcl2k 2048 172 0 0 21 0 21 21 0 8 0 mtagpl 80 3 0 0 1 0 1 1 0 8 0 mbufpl 256 311 0 0 19 0 19 19 0 8 0 bufpl 256 6386 0 1315 317 0 317 317 0 8 0 anonpl 16 49158 0 31153 90 1 89 89 0 124 15 amapchunkpl 152 1384 0 1269 9 0 9 9 0 158 3 amappl16 192 1655 0 643 63 2 61 63 0 8 10 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 27 0 26 1 0 1 1 0 8 0 amappl13 168 63 0 60 1 0 1 1 0 8 0 amappl12 160 8 0 5 1 0 1 1 0 8 0 amappl11 152 57 0 42 1 0 1 1 0 8 0 amappl10 144 12 0 7 1 0 1 1 0 8 0 amappl9 136 617 0 611 1 0 1 1 0 8 0 amappl8 128 194 0 158 2 0 2 2 0 8 0 amappl7 120 43 0 38 1 0 1 1 0 8 0 amappl6 112 74 0 63 1 0 1 1 0 8 0 amappl5 104 149 0 135 1 0 1 1 0 8 0 amappl4 96 560 0 524 1 0 1 1 0 8 0 amappl3 88 114 0 108 1 0 1 1 0 8 0 amappl2 80 1538 0 1464 3 1 2 3 0 8 0 amappl1 72 16215 0 15777 25 14 11 20 0 8 1 amappl 80 724 0 685 2 0 2 2 0 84 1 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 298 0 282 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 298 0 282 1 0 1 1 0 8 0 vmmpekpl 168 6392 0 6356 2 0 2 2 0 8 0 vmmpepl 168 44243 0 42079 137 6 131 132 0 357 35 vmsppl 368 297 0 282 2 0 2 2 0 8 0 pdppl 4096 603 0 564 6 0 6 6 0 8 1 pvpl 32 154936 0 133795 215 0 215 215 0 265 43 pmappl 232 297 0 282 2 1 1 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 489 0 4 14 0 14 14 0 8 0