oLoLpanic: ifa_update_broadaddr does not support dynamic length Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 126579 31828 0 0 0 0 syz-executor.1 *154473 31828 0 0 0x4000000 1K syz-executor.1 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:207 ifa_update_broadaddr(ffff800000adc000,ffff800000ac9400,ffff800022794ee0) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff800022794ed0,ffff800000adc000,1) at in_ioctl+0x463 sys/netinet/in.c:311 ifioctl(fffffd8065c80af8,80206913,ffff800022794ed0,ffff800020ab1650) at ifioctl+0xb64 sys/net/if.c:2202 sys_ioctl(ffff800020ab1650,ffff800022794fe8,ffff800022795030) at sys_ioctl+0x5b9 syscall(ffff8000227950b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff8000227950b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,923d0d20010) at Xsyscall+0x128 end of kernel end trace frame: 0x9262ac49a80, count: 7 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic ifa_update_broadaddr does not support dynamic length ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:207 ifa_update_broadaddr(ffff800000adc000,ffff800000ac9400,ffff800022794ee0) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff800022794ed0,ffff800000adc000,1) at in_ioctl+0x463 sys/netinet/in.c:311 ifioctl(fffffd8065c80af8,80206913,ffff800022794ed0,ffff800020ab1650) at ifioctl+0xb64 sys/net/if.c:2202 sys_ioctl(ffff800020ab1650,ffff800022794fe8,ffff800022795030) at sys_ioctl+0x5b9 syscall(ffff8000227950b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff8000227950b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,923d0d20010) at Xsyscall+0x128 end of kernel end trace frame: 0x9262ac49a80, count: -8 ddb{1}> show registers rdi 0xffffffff815a92f7 db_enter+0x17 rsi 0x1c42 __ALIGN_SIZE+0xc42 rbp 0xffff800022794c70 rbx 0xffff800022794d20 rdx 0x1c43 __ALIGN_SIZE+0xc43 rcx 0xffff800023d7c000 rax 0xffff800023d7c000 r8 0xffffffff821269af kprintf+0x16f r9 0x1 r10 0x25 r11 0xfe60e038dd40ef80 r12 0x3000000008 r13 0xffff800022794c80 r14 0x100 r15 0x1 rip 0xffffffff815a92f8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800022794c60 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=154473 stat=onproc flags process=0 proc=4000000 pri=80, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff800020ab0290,0xffffffff8266aad8 process=0xffff800020addc00 user=0xffff800022790000, vmspace=0xfffffd807f00aa10 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 31828 126579 1870 0 7 0 syz-executor.1 *31828 154473 1870 0 7 0x4000000 syz-executor.1 74392 322980 58104 0 2 0x2 syz-executor.0 1870 152655 58104 0 3 0x82 nanosleep syz-executor.1 54170 256345 1 0 3 0x100083 ttyin getty 95661 305581 0 0 3 0x14200 acct acct 25260 154640 0 0 3 0x14200 bored sosplice 58104 33114 97928 0 3 0x82 nanosleep syz-fuzzer 58104 358786 97928 0 3 0x4000082 nanosleep syz-fuzzer 58104 331758 97928 0 3 0x4000082 thrsleep syz-fuzzer 58104 104461 97928 0 3 0x4000082 thrsleep syz-fuzzer 58104 423740 97928 0 3 0x4000082 thrsleep syz-fuzzer 58104 219079 97928 0 3 0x4000082 thrsleep syz-fuzzer 58104 171798 97928 0 3 0x4000082 thrsleep syz-fuzzer 58104 494230 97928 0 3 0x4000082 thrsleep syz-fuzzer 58104 405745 97928 0 3 0x4000082 thrsleep syz-fuzzer 58104 374352 97928 0 3 0x4000082 kqread syz-fuzzer 97928 277956 74071 0 3 0x10008a pause ksh 74071 211509 93159 0 3 0x92 select sshd 93159 363408 1 0 3 0x80 select sshd 73183 114805 93376 74 3 0x100092 bpf pflogd 93376 521460 1 0 3 0x80 netio pflogd 25704 65648 35056 73 3 0x100090 kqread syslogd 35056 349585 1 0 3 0x100082 netio syslogd 14997 149869 1 77 3 0x100090 poll dhclient 41805 207137 1 0 3 0x80 poll dhclient 8715 503201 0 0 2 0x14200 zerothread 68973 415548 0 0 3 0x14200 aiodoned aiodoned 11314 260493 0 0 3 0x14200 syncer update 61285 453991 0 0 3 0x14200 cleaner cleaner 46428 30675 0 0 3 0x14200 reaper reaper 33315 290583 0 0 3 0x14200 pgdaemon pagedaemon 84829 65018 0 0 3 0x14200 bored crynlk 70298 208526 0 0 3 0x14200 bored crypto 71861 94420 0 0 3 0x40014200 acpi0 acpi0 40463 366632 0 0 3 0x40014200 idle1 13987 75225 0 0 3 0x14200 bored softnet 42688 147681 0 0 3 0x14200 bored systqmp 85561 21053 0 0 3 0x14200 bored systq 90517 423585 0 0 3 0x40014200 bored softclock 6820 508379 0 0 3 0x40014200 idle0 30677 93380 0 0 3 0x14200 bored smr 1 264684 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 31828 (syz-executor.1) thread 0xffff800020ab1650 (154473) exclusive rwlock netlock r = 0 (0xffffffff824895c8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 in_ioctl+0x142 #2 ifioctl+0xb64 sys/net/if.c:2202 #3 sys_ioctl+0x5b9 #4 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #4 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (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 9550 6425K 7201K 78643K 12771 0 0 pcb 13 8K 8K 78643K 235 0 0 rtable 122 13K 13K 78643K 746 0 0 ifaddr 73 15K 16K 78643K 171 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1515 0 0 iov 0 0K 32K 78643K 579 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1227 77K 77K 78643K 2042 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 14 0 0 VM map 9 4K 4K 78643K 11 0 0 sem 12 0K 1K 78643K 427 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 5 13K 25K 78643K 888 0 0 sigio 0 0K 0K 78643K 68 0 0 proc 61 63K 95K 78643K 781 0 0 subproc 32 2K 2K 78643K 136 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 58 0 0 in_multi 30 2K 2K 78643K 135 0 0 ether_multi 1 0K 0K 78643K 10 0 0 mrt 0 0K 0K 78643K 4 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 66 291K 291K 78643K 66 0 0 exec 0 0K 1K 78643K 385 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 139 76K 76K 78643K 4205 0 0 UVM aobj 70 3K 3K 78643K 70 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 225 0 0 NDP 16 0K 0K 78643K 53 0 0 temp 200 3564K 3639K 78643K 30680 0 0 kqueue 0 0K 0K 78643K 2 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 34 0 27 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 96 0 94 1 0 1 1 0 8 0 rtentry 112 147 0 99 2 0 2 2 0 8 0 unpcb 120 697 0 683 3 1 2 2 0 8 1 syncache 264 14 0 14 4 4 0 1 0 8 0 tcpqe 32 206 0 206 3 3 0 1 0 8 0 tcpcb 544 1417 0 1412 10 8 2 7 0 8 1 inpcb 280 2614 0 2605 14 12 2 8 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 17 0 14 2 1 1 1 0 8 0 pkpcb 40 8 0 8 2 2 0 1 0 8 0 ppxss 1128 12 0 12 4 3 1 1 0 8 1 pffrag 232 26 0 20 3 2 1 1 0 482 0 pffrnode 88 23 0 20 3 2 1 1 0 8 0 pffrent 40 703 0 671 3 2 1 1 0 8 0 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 93 0 31 1 0 1 1 0 8 0 pfstkey 112 93 0 31 2 0 2 2 0 8 0 pfstate 328 93 0 31 6 0 6 6 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 588 0 365 23 7 16 16 0 8 0 art_table 32 591 0 365 3 0 3 3 0 8 0 art_node 16 146 0 103 1 0 1 1 0 8 0 sysvmsgpl 40 38 0 20 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 425 0 415 1 0 1 1 0 8 0 shmpl 112 68 0 0 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2823 0 1415 46 0 46 46 0 8 0 ffsino 272 2823 0 1415 95 0 95 95 0 8 0 nchpl 144 4350 0 2745 60 0 60 60 0 8 0 uvmvnodes 72 3506 0 0 64 0 64 64 0 8 0 vnodes 208 3506 0 0 185 0 185 185 0 8 0 namei 1024 14003 0 14003 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 7 0 0 1 0 1 1 0 8 0 vmpool 552 9 0 2 1 0 1 1 0 8 0 scxspl 192 14039 0 14039 14 12 2 7 0 8 2 plimitpl 152 99 0 91 1 0 1 1 0 8 0 sigapl 432 1069 0 1054 4 2 2 3 0 8 0 futexpl 56 21975 0 21975 1 0 1 1 0 8 1 knotepl 112 270 0 251 2 1 1 2 0 8 0 kqueuepl 104 214 0 212 1 0 1 1 0 8 0 pipepl 112 730 0 711 2 1 1 2 0 8 0 fdescpl 488 1070 0 1054 3 0 3 3 0 8 0 filepl 152 9776 0 9674 13 7 6 9 0 8 2 lockfpl 104 347 0 346 1 0 1 1 0 8 0 lockfspl 48 130 0 129 1 0 1 1 0 8 0 sessionpl 112 25 0 14 1 0 1 1 0 8 0 pgrppl 48 33 0 22 1 0 1 1 0 8 0 ucredpl 96 1069 0 1060 1 0 1 1 0 8 0 zombiepl 144 1054 0 1054 1 0 1 1 0 8 1 processpl 896 1087 0 1054 5 1 4 5 0 8 0 procpl 632 3079 0 3036 5 0 5 5 0 8 0 srpgc 64 14 0 14 4 4 0 1 0 8 0 sosppl 128 33 0 33 5 4 1 1 0 8 1 sockpl 384 3434 0 3407 21 13 8 12 0 8 4 mcl64k 65536 21 0 0 3 0 3 3 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 8 0 0 1 0 1 1 0 8 0 mcl4k 4096 13 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 173 0 0 21 0 21 21 0 8 0 mtagpl 80 38 0 0 1 0 1 1 0 8 0 mbufpl 256 830 0 0 49 0 49 49 0 8 0 bufpl 256 10711 0 3653 442 0 442 442 0 8 0 anonpl 16 153588 0 133527 130 33 97 97 0 124 13 amapchunkpl 152 7784 0 7627 19 12 7 12 0 158 0 amappl16 192 6025 0 4885 101 34 67 70 0 8 8 amappl15 184 704 0 703 1 0 1 1 0 8 0 amappl14 176 160 0 154 1 0 1 1 0 8 0 amappl13 168 3 0 2 1 0 1 1 0 8 0 amappl12 160 23 0 19 1 0 1 1 0 8 0 amappl11 152 107 0 92 1 0 1 1 0 8 0 amappl10 144 155 0 149 1 0 1 1 0 8 0 amappl9 136 678 0 675 1 0 1 1 0 8 0 amappl8 128 251 0 214 2 0 2 2 0 8 0 amappl7 120 213 0 204 1 0 1 1 0 8 0 amappl6 112 101 0 88 1 0 1 1 0 8 0 amappl5 104 199 0 183 1 0 1 1 0 8 0 amappl4 96 1278 0 1244 1 0 1 1 0 8 0 amappl3 88 286 0 281 1 0 1 1 0 8 0 amappl2 80 7641 0 7567 3 1 2 3 0 8 0 amappl1 72 34408 0 33967 27 17 10 20 0 8 0 amappl 80 3467 0 3415 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 69 0 0 2 0 2 2 0 8 0 uaddrrnd 24 1079 0 1054 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1079 0 1054 1 0 1 1 0 8 0 vmmpekpl 168 12579 0 12541 2 0 2 2 0 8 0 vmmpepl 168 144979 0 142664 184 43 141 153 0 357 35 vmsppl 368 1069 0 1054 2 0 2 2 0 8 0 pdppl 4096 2165 0 2119 8 1 7 7 0 8 0 pvpl 32 415753 0 392433 262 36 226 226 0 265 33 pmappl 232 1078 0 1056 2 0 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 668 0 19 19 0 19 19 0 8 0