login: panic: ifa_update_broadaddr does not support dynamic length Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *204820 2971 0 0 0 0 syz-executor.0 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(ffff800000a62800,ffff8000006a1600,ffff800014918320) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff800014918310,ffff800000a62800,1) at in_ioctl+0x463 sys/netinet/in.c:299 ifioctl(fffffd80363dba88,80206913,ffff800014918310,ffff8000ffff8008) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000ffff8008,ffff800014918428,ffff800014918470) at sys_ioctl+0x5b9 syscall(ffff8000149184f0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,4299155b010) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc9740, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic ifa_update_broadaddr does not support dynamic length ddb> 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(ffff800000a62800,ffff8000006a1600,ffff800014918320) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff800014918310,ffff800000a62800,1) at in_ioctl+0x463 sys/netinet/in.c:299 ifioctl(fffffd80363dba88,80206913,ffff800014918310,ffff8000ffff8008) at ifioctl+0xb34 sys/net/if.c:2202 sys_ioctl(ffff8000ffff8008,ffff800014918428,ffff800014918470) at sys_ioctl+0x5b9 syscall(ffff8000149184f0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,4299155b010) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc9740, count: -8 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff8000149180b0 rbx 0xffff800014918160 rdx 0x2 rcx 0x1 rax 0x1 r8 0xffff800014918070 r9 0x1 r10 0xbeddb156f32fc9a1 r11 0x2fe77e416fc76d81 r12 0x3000000008 r13 0xffff8000149180c0 r14 0x100 r15 0x1 rip 0xffffffff814d3648 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000149180a0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.0) pid=204820 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8770,0xffffffff82585f08 process=0xffff8000148a30f8 user=0xffff800014913000, vmspace=0xfffffd803f014550 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND * 2971 204820 10903 0 7 0 syz-executor.0 10903 401039 51754 0 3 0x82 nanosleep syz-executor.0 51754 321467 27590 0 3 0x82 thrsleep syz-execprog 51754 32202 27590 0 3 0x4000082 thrsleep syz-execprog 51754 464381 27590 0 3 0x4000082 thrsleep syz-execprog 51754 220220 27590 0 3 0x4000082 thrsleep syz-execprog 51754 61480 27590 0 3 0x4000082 kqread syz-execprog 51754 149088 27590 0 3 0x4000082 thrsleep syz-execprog 51754 274327 27590 0 3 0x4000082 thrsleep syz-execprog 27590 240983 37405 0 3 0x10008a pause ksh 37405 488595 20356 0 3 0x92 select sshd 57500 397139 1 0 3 0x100083 ttyin getty 20356 160471 1 0 3 0x80 select sshd 39865 325669 14940 73 3 0x100090 kqread syslogd 14940 509711 1 0 3 0x100082 netio syslogd 57091 266687 1 77 3 0x100090 poll dhclient 96957 520887 1 0 3 0x80 poll dhclient 91551 517958 0 0 2 0x14200 zerothread 24004 94094 0 0 3 0x14200 aiodoned aiodoned 70287 498060 0 0 3 0x14200 syncer update 81710 171497 0 0 3 0x14200 cleaner cleaner 90505 256362 0 0 3 0x14200 reaper reaper 22749 221853 0 0 3 0x14200 pgdaemon pagedaemon 32647 3245 0 0 3 0x14200 bored crynlk 71881 454551 0 0 3 0x14200 bored crypto 60061 496406 0 0 3 0x40014200 acpi0 acpi0 63048 60593 0 0 3 0x14200 bored softnet 85802 245725 0 0 3 0x14200 bored systqmp 24951 108067 0 0 3 0x14200 bored systq 3037 23372 0 0 3 0x40014200 bored softclock 3332 207050 0 0 3 0x40014200 idle0 32818 204673 0 0 3 0x14200 bored smr 1 420786 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9433 6309K 6309K 78643K 10526 0 0 pcb 13 8K 8K 78643K 13 0 0 rtable 83 2K 2K 78643K 153 0 0 ifaddr 28 8K 8K 78643K 28 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 14 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1180 74K 74K 78643K 1185 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 2 0K 0K 78643K 2 0 0 sem 2 0K 0K 78643K 2 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 3 8K 12K 78643K 18 0 0 proc 47 38K 54K 78643K 307 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 22 1K 1K 78643K 22 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 18 79K 79K 78643K 18 0 0 exec 0 0K 1K 78643K 172 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 63 11K 11K 78643K 839 0 0 UVM aobj 2 2K 2K 78643K 2 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 NDP 6 0K 0K 78643K 6 0 0 temp 39 3517K 3581K 78643K 3057 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 4 0 0 1 0 1 1 0 8 0 rtpcb 80 17 0 15 1 0 1 1 0 8 0 rtentry 112 34 0 1 1 0 1 1 0 8 0 unpcb 120 27 0 19 1 0 1 1 0 8 0 syncache 264 5 0 5 1 0 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 27 0 20 1 0 1 1 0 8 0 nd6 48 2 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 167 0 0 11 0 11 11 0 8 0 art_table 32 168 0 0 2 0 2 2 0 8 0 art_node 16 33 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1413 0 19 45 0 45 45 0 8 0 ffsino 240 1413 0 19 82 0 82 82 0 8 0 nchpl 144 1653 0 48 60 0 60 60 0 8 0 uvmvnodes 72 1422 0 0 26 0 26 26 0 8 0 vnodes 208 1422 0 0 75 0 75 75 0 8 0 namei 1024 3839 0 3839 2 1 1 1 0 8 1 scxspl 192 4112 0 4112 8 1 7 7 0 8 7 plimitpl 152 14 0 8 1 0 1 1 0 8 0 sigapl 432 197 0 185 2 0 2 2 0 8 0 knotepl 112 39 0 28 1 0 1 1 0 8 0 kqueuepl 104 2 0 0 1 0 1 1 0 8 0 pipepl 112 138 0 125 2 1 1 1 0 8 0 fdescpl 424 198 0 185 2 0 2 2 0 8 0 filepl 120 977 0 923 2 0 2 2 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 112 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 47 0 40 1 0 1 1 0 8 0 zombiepl 144 185 0 185 2 1 1 1 0 8 1 processpl 864 212 0 185 4 0 4 4 0 8 0 procpl 632 218 0 185 3 0 3 3 0 8 0 sockpl 384 71 0 54 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k 2048 5473 0 5445 6 2 4 6 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9548 0 9477 8 3 5 5 0 8 0 bufpl 256 5785 0 1327 279 0 279 279 0 8 0 anonpl 16 20058 0 18626 15 2 13 13 0 62 7 amapchunkpl 152 670 0 610 5 0 5 5 0 158 2 amappl16 192 120 0 93 2 0 2 2 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 19 0 18 2 1 1 1 0 8 0 amappl12 160 4 0 3 1 0 1 1 0 8 0 amappl11 152 45 0 33 1 0 1 1 0 8 0 amappl10 144 12 0 11 1 0 1 1 0 8 0 amappl9 136 366 0 361 1 0 1 1 0 8 0 amappl8 128 115 0 105 1 0 1 1 0 8 0 amappl7 120 30 0 28 1 0 1 1 0 8 0 amappl6 112 76 0 66 1 0 1 1 0 8 0 amappl5 104 232 0 220 1 0 1 1 0 8 0 amappl4 96 428 0 402 1 0 1 1 0 8 0 amappl3 88 117 0 112 1 0 1 1 0 8 0 amappl2 80 841 0 785 4 1 3 3 0 8 1 amappl1 72 13367 0 12970 26 8 18 20 0 8 8 amappl 80 420 0 394 1 0 1 1 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 dma64 64 259 0 259 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 198 0 185 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 198 0 185 1 0 1 1 0 8 0 vmmpekpl 168 6178 0 6163 1 0 1 1 0 8 0 vmmpepl 168 28832 0 27973 88 12 76 76 0 357 37 vmsppl 272 197 0 185 1 0 1 1 0 8 0 pdppl 4096 402 0 370 5 0 5 5 0 8 0 pvpl 32 103204 0 99514 117 5 112 112 0 265 81 pmappl 200 197 0 185 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 402 0 8 12 0 12 12 0 8 0 ddb>