""‰~¼t§êÏ€ñúHôD^Õ""‰~¼t§êÏ€ñúHôD^Õpanic: ifa_update_broadaddr does not support dynamic length Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 198804 70417 0 0 0 0 syz-executor.0 *328594 70417 0 0 0x4000000 1K 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(ffff800000b21000,ffff800000b35e00,ffff8000239c1810) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff8000239c1800,ffff800000b21000,1) at in_ioctl+0x463 sys/netinet/in.c:311 ifioctl(fffffd8077ce0900,80206913,ffff8000239c1800,ffff800020abec70) at ifioctl+0xb64 sys/net/if.c:2202 sys_ioctl(ffff800020abec70,ffff8000239c1918,ffff8000239c1960) at sys_ioctl+0x5b9 syscall(ffff8000239c19e0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff8000239c19e0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,69c4de2e010) at Xsyscall+0x128 end of kernel end trace frame: 0x69eccd6e1e0, 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(ffff800000b21000,ffff800000b35e00,ffff8000239c1810) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff8000239c1800,ffff800000b21000,1) at in_ioctl+0x463 sys/netinet/in.c:311 ifioctl(fffffd8077ce0900,80206913,ffff8000239c1800,ffff800020abec70) at ifioctl+0xb64 sys/net/if.c:2202 sys_ioctl(ffff800020abec70,ffff8000239c1918,ffff8000239c1960) at sys_ioctl+0x5b9 syscall(ffff8000239c19e0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff8000239c19e0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,69c4de2e010) at Xsyscall+0x128 end of kernel end trace frame: 0x69eccd6e1e0, count: -8 ddb{1}> show registers rdi 0xffffffff814c4807 db_enter+0x17 rsi 0x1609 __ALIGN_SIZE+0x609 rbp 0xffff8000239c15a0 rbx 0xffff8000239c1650 rdx 0x160a __ALIGN_SIZE+0x60a rcx 0xffff800023794000 rax 0xffff800023794000 r8 0xffffffff8141f94f kprintf+0x16f r9 0x1 r10 0x25 r11 0xa402aa9cabd9d5cf r12 0x3000000008 r13 0xffff8000239c15b0 r14 0x100 r15 0x1 rip 0xffffffff814c4808 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff8000239c1590 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=328594 stat=onproc flags process=0 proc=4000000 pri=79, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff800020abe508,0xffffffff8265b7c8 process=0xffff800020add500 user=0xffff8000239bc000, vmspace=0xfffffd807f008730 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 70417 198804 55801 0 7 0 syz-executor.0 *70417 328594 55801 0 7 0x4000000 syz-executor.0 31588 445372 56749 0 2 0 syz-executor.1 31588 520598 56749 0 3 0x4000080 ttyin syz-executor.1 56749 161136 59371 0 3 0x82 nanosleep syz-executor.1 55801 212570 59371 0 3 0x82 nanosleep syz-executor.0 83473 374300 1 0 3 0x100083 ttyin getty 17267 333241 0 0 3 0x14200 acct acct 21582 189179 0 0 3 0x14200 bored sosplice 59371 208445 3302 0 3 0x82 thrsleep syz-fuzzer 59371 477828 3302 0 3 0x4000082 thrsleep syz-fuzzer 59371 256592 3302 0 3 0x4000082 thrsleep syz-fuzzer 59371 326327 3302 0 3 0x4000082 thrsleep syz-fuzzer 59371 331917 3302 0 3 0x4000082 thrsleep syz-fuzzer 59371 243055 3302 0 3 0x4000082 thrsleep syz-fuzzer 59371 354867 3302 0 3 0x4000082 thrsleep syz-fuzzer 59371 422232 3302 0 3 0x4000082 thrsleep syz-fuzzer 59371 242928 3302 0 3 0x4000082 kqread syz-fuzzer 59371 77467 3302 0 3 0x4000082 thrsleep syz-fuzzer 3302 154909 47316 0 3 0x10008a pause ksh 47316 111665 42666 0 3 0x92 select sshd 42666 419676 1 0 3 0x80 select sshd 78775 41428 73021 74 3 0x100092 bpf pflogd 73021 514030 1 0 3 0x80 netio pflogd 36894 265217 96645 73 3 0x100090 kqread syslogd 96645 247536 1 0 3 0x100082 netio syslogd 33018 73759 1 77 3 0x100090 poll dhclient 30139 299433 1 0 3 0x80 poll dhclient 72683 70269 0 0 2 0x14200 zerothread 65330 324844 0 0 3 0x14200 aiodoned aiodoned 75263 35581 0 0 3 0x14200 syncer update 82524 17423 0 0 3 0x14200 cleaner cleaner 74862 453424 0 0 3 0x14200 reaper reaper 17273 242113 0 0 3 0x14200 pgdaemon pagedaemon 38250 113078 0 0 3 0x14200 bored crynlk 60857 523953 0 0 3 0x14200 bored crypto 84300 268395 0 0 3 0x40014200 acpi0 acpi0 31943 240098 0 0 3 0x40014200 idle1 91958 250095 0 0 3 0x14200 bored softnet 80961 134694 0 0 3 0x14200 bored systqmp 10188 312262 0 0 3 0x14200 bored systq 16182 267422 0 0 3 0x40014200 bored softclock 938 342149 0 0 3 0x40014200 idle0 16912 79892 0 0 3 0x14200 bored smr 1 20394 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 70417 (syz-executor.0) thread 0xffff800020abec70 (328594) exclusive rwlock netlock r = 0 (0xffffffff824dc718) #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 (0xffffffff82648ec0) #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 9629 6469K 8844K 78643K 39298 0 0 pcb 13 10K 12K 78643K 1266 0 0 rtable 154 17K 18K 78643K 3313 0 0 ifaddr 117 26K 28K 78643K 896 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1762 0 0 iov 0 0K 24K 78643K 1157 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1233 77K 79K 78643K 9773 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 82 0 0 VM map 48 24K 24K 78643K 69 0 0 sem 12 0K 0K 78643K 2248 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1809 196K 290K 78643K 12766 0 0 file desc 6 17K 25K 78643K 5322 0 0 sigio 0 0K 0K 78643K 77 0 0 proc 62 63K 95K 78643K 2430 0 0 subproc 32 2K 2K 78643K 639 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 504 0 0 in_multi 31 2K 2K 78643K 691 0 0 ether_multi 1 0K 0K 78643K 52 0 0 mrt 0 0K 0K 78643K 29 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 108 477K 477K 78643K 108 0 0 exec 0 0K 1K 78643K 1284 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 190 293K 297K 78643K 20190 0 0 UVM aobj 130 4K 4K 78643K 132 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 1208 0 0 NDP 23 0K 1K 78643K 291 0 0 temp 252 3561K 4201K 78643K 205786 0 0 kqueue 0 0K 0K 78643K 40 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 95 0 90 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 508 0 506 1 0 1 1 0 8 0 rtentry 112 650 0 591 4 2 2 3 0 8 0 unpcb 120 3230 0 3218 4 3 1 2 0 8 0 syncache 264 30 0 30 14 14 0 1 0 8 0 tcpqe 32 50 0 50 10 10 0 1 0 8 0 tcpcb 544 2733 0 2729 30 29 1 13 0 8 0 inpcb 280 7982 0 7974 31 29 2 9 0 8 1 rttmr 72 10 0 10 8 8 0 1 0 8 0 ip6q 72 3 0 2 2 1 1 1 0 8 0 ip6af 40 1 0 1 1 1 0 1 0 8 0 nd6 48 91 0 90 2 1 1 1 0 8 0 pkpcb 40 27 0 27 7 6 1 1 0 8 1 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 102 0 102 18 17 1 1 0 8 1 pffrag 232 138 0 138 15 14 1 1 0 482 1 pffrnode 88 138 0 138 15 14 1 1 0 8 1 pffrent 40 4434 0 4434 15 14 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 24 362 0 309 1 0 1 1 0 8 0 pfstkey 112 362 0 309 3 1 2 3 0 8 0 pfstate 328 362 0 309 7 2 5 7 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 30 0 26 9 5 4 6 0 8 0 art_heap4 256 2679 0 2489 26 10 16 17 0 8 0 art_table 32 2709 0 2515 3 0 3 3 0 8 0 art_node 16 646 0 609 1 0 1 1 0 8 0 sysvmsgpl 40 23 0 6 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 2246 0 2236 1 0 1 1 0 8 0 shmpl 112 130 0 2 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 9911 0 8483 48 1 47 47 0 8 0 ffsino 272 9911 0 8483 96 0 96 96 0 8 0 nchpl 144 18185 0 17707 60 41 19 60 0 8 0 uvmvnodes 72 6242 0 0 114 0 114 114 0 8 0 vnodes 208 6242 0 0 329 0 329 329 0 8 0 namei 1024 68672 0 68672 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 47 0 1 6 0 6 6 0 8 0 vmpool 552 67 0 21 4 0 4 4 0 8 0 scsiplug 64 6 0 6 5 5 0 1 0 8 0 scxspl 192 58901 0 58901 31 29 2 7 0 8 2 plimitpl 152 483 0 475 1 0 1 1 0 8 0 sigapl 432 5418 0 5402 4 2 2 3 0 8 0 futexpl 56 141722 0 141722 1 0 1 1 0 8 1 knotepl 112 1240 0 1221 6 5 1 3 0 8 0 kqueuepl 104 1669 0 1667 7 6 1 4 0 8 0 pipepl 112 10740 0 10721 20 18 2 3 0 8 1 fdescpl 488 5419 0 5402 3 0 3 3 0 8 0 filepl 152 55625 0 55522 40 35 5 14 0 8 1 lockfpl 104 2111 0 2110 1 0 1 1 0 8 0 lockfspl 48 708 0 707 1 0 1 1 0 8 0 sessionpl 112 56 0 45 1 0 1 1 0 8 0 pgrppl 48 121 0 110 1 0 1 1 0 8 0 ucredpl 96 5894 0 5884 1 0 1 1 0 8 0 zombiepl 144 5402 0 5402 1 0 1 1 0 8 1 processpl 896 5436 0 5402 5 1 4 5 0 8 0 procpl 632 17476 0 17431 5 0 5 5 0 8 1 srpgc 64 104 0 104 18 17 1 1 0 8 1 sosppl 128 147 0 147 20 20 0 1 0 8 0 sockpl 384 11813 0 11789 56 52 4 14 0 8 1 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 25 0 0 4 1 3 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 25 0 0 4 1 3 3 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 188 0 0 19 3 16 19 0 8 0 mtagpl 80 436 0 0 6 0 6 6 0 8 0 mbufpl 256 909 0 0 42 0 42 42 0 8 0 bufpl 256 22999 0 15941 442 0 442 442 0 8 0 anonpl 16 676469 0 649922 240 130 110 125 0 124 1 amapchunkpl 152 41193 0 40779 79 61 18 24 0 158 1 amappl16 192 28176 0 26885 202 135 67 77 0 8 2 amappl15 184 1911 0 1907 4 3 1 1 0 8 0 amappl14 176 674 0 669 1 0 1 1 0 8 0 amappl13 168 415 0 413 8 7 1 1 0 8 0 amappl12 160 864 0 863 1 0 1 1 0 8 0 amappl11 152 1262 0 1247 1 0 1 1 0 8 0 amappl10 144 253 0 246 1 0 1 1 0 8 0 amappl9 136 1551 0 1547 1 0 1 1 0 8 0 amappl8 128 1115 0 1052 4 1 3 3 0 8 0 amappl7 120 432 0 423 1 0 1 1 0 8 0 amappl6 112 1140 0 1125 1 0 1 1 0 8 0 amappl5 104 1324 0 1310 1 0 1 1 0 8 0 amappl4 96 5571 0 5533 1 0 1 1 0 8 0 amappl3 88 1162 0 1154 1 0 1 1 0 8 0 amappl2 80 41498 0 41414 3 1 2 3 0 8 0 amappl1 72 132985 0 132522 26 16 10 20 0 8 0 amappl 80 18408 0 18345 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 18 0 17 1 0 1 1 0 8 0 aobjpl 64 131 0 2 3 0 3 3 0 8 0 uaddrrnd 24 5486 0 5402 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5486 0 5402 1 0 1 1 0 8 0 vmmpekpl 168 59471 0 59427 3 0 3 3 0 8 0 vmmpepl 168 702863 0 700130 313 153 160 164 0 357 38 vmsppl 368 5418 0 5402 2 0 2 2 0 8 0 pdppl 4096 10979 0 10892 14 3 11 11 0 8 0 pvpl 32 1748285 0 1724508 404 192 212 232 0 265 13 pmappl 232 5485 0 5423 4 0 4 4 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 702 0 55 19 0 19 19 0 8 0