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 509590 10433 0 0 0 0 syz-executor.0 *332773 10433 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(ffff800000a68000,ffff800000a48d00,ffff800022d81070) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff800022d81060,ffff800000a68000,1) at in_ioctl+0x463 sys/netinet/in.c:311 ifioctl(fffffd806f6cfa80,80206913,ffff800022d81060,ffff800020ab0780) at ifioctl+0xb64 sys/net/if.c:2202 sys_ioctl(ffff800020ab0780,ffff800022d81178,ffff800022d811c0) at sys_ioctl+0x5b9 syscall(ffff800022d81240) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800022d81240) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,15406bc010) at Xsyscall+0x128 end of kernel end trace frame: 0x17c4e09210, 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(ffff800000a68000,ffff800000a48d00,ffff800022d81070) at ifa_update_broadaddr+0x61 sys/net/if.c:2970 in_ioctl(80206913,ffff800022d81060,ffff800000a68000,1) at in_ioctl+0x463 sys/netinet/in.c:311 ifioctl(fffffd806f6cfa80,80206913,ffff800022d81060,ffff800020ab0780) at ifioctl+0xb64 sys/net/if.c:2202 sys_ioctl(ffff800020ab0780,ffff800022d81178,ffff800022d811c0) at sys_ioctl+0x5b9 syscall(ffff800022d81240) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800022d81240) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff36,0,3,15406bc010) at Xsyscall+0x128 end of kernel end trace frame: 0x17c4e09210, count: -8 ddb{1}> show registers rdi 0xffffffff82125777 db_enter+0x17 rsi 0x1b82 __ALIGN_SIZE+0xb82 rbp 0xffff800022d80e00 rbx 0xffff800022d80eb0 rdx 0x1b83 __ALIGN_SIZE+0xb83 rcx 0xffff800020b64000 rax 0xffff800020b64000 r8 0xffffffff8165462f kprintf+0x16f r9 0x1 r10 0x25 r11 0xeca3f5d268c2ac0a r12 0x3000000008 r13 0xffff800022d80e10 r14 0x100 r15 0x1 rip 0xffffffff82125778 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800022d80df0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) pid=332773 stat=onproc flags process=0 proc=4000000 pri=69, usrpri=69, nice=20 forw=0xffffffffffffffff, list=0xffff800020ab0508,0xffffffff8267a4c0 process=0xffff800020adc000 user=0xffff800022d7c000, vmspace=0xfffffd807f00b8a0 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 10433 509590 59164 0 7 0 syz-executor.0 *10433 332773 59164 0 7 0x4000000 syz-executor.0 49117 328526 81549 0 3 0x2 biowait syz-executor.1 59164 427526 81549 0 3 0x82 nanosleep syz-executor.0 81549 452733 82198 0 3 0x82 thrsleep syz-fuzzer 81549 239528 82198 0 3 0x4000082 nanosleep syz-fuzzer 81549 21051 82198 0 3 0x4000082 thrsleep syz-fuzzer 81549 156076 82198 0 3 0x4000082 thrsleep syz-fuzzer 81549 82549 82198 0 3 0x4000082 thrsleep syz-fuzzer 81549 4007 82198 0 3 0x4000082 kqread syz-fuzzer 81549 514152 82198 0 3 0x4000082 thrsleep syz-fuzzer 81549 116798 82198 0 3 0x4000082 nanosleep syz-fuzzer 81549 145775 82198 0 3 0x4000082 thrsleep syz-fuzzer 81549 238887 82198 0 3 0x4000082 thrsleep syz-fuzzer 82198 99269 11791 0 3 0x10008a pause ksh 11791 18022 76172 0 3 0x92 select sshd 30793 169076 1 0 3 0x100083 ttyin getty 76172 466009 1 0 3 0x80 select sshd 71822 501866 75183 74 3 0x100092 bpf pflogd 75183 121211 1 0 3 0x80 netio pflogd 41249 498050 65153 73 3 0x100090 kqread syslogd 65153 132669 1 0 3 0x100082 netio syslogd 86639 102473 1 77 3 0x100090 poll dhclient 94121 331814 1 0 3 0x80 poll dhclient 24986 418359 0 0 3 0x14200 pgzero zerothread 19942 465854 0 0 3 0x14200 aiodoned aiodoned 52650 288429 0 0 3 0x14200 syncer update 42650 429966 0 0 3 0x14200 cleaner cleaner 90065 287563 0 0 3 0x14200 reaper reaper 83565 512772 0 0 3 0x14200 pgdaemon pagedaemon 86981 330957 0 0 3 0x14200 bored crynlk 523 447891 0 0 3 0x14200 bored crypto 77980 497030 0 0 3 0x40014200 acpi0 acpi0 95043 265445 0 0 3 0x40014200 idle1 2819 427791 0 0 3 0x14200 bored softnet 30086 77590 0 0 3 0x14200 bored systqmp 39841 50407 0 0 3 0x14200 bored systq 1010 370301 0 0 3 0x40014200 bored softclock 5742 117100 0 0 3 0x40014200 idle0 21040 233074 0 0 3 0x14200 bored smr 1 36153 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 10433 (syz-executor.0) thread 0xffff800020ab0780 (332773) exclusive rwlock netlock r = 0 (0xffffffff8248f918) #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 (0xffffffff82638a30) #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 49117 (syz-executor.1) thread 0xffff800020ab13d8 (328526) exclusive rrwlock inode r = 0 (0xfffffd806dc0f1b8) #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 (0xfffffd80691c9098) #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9480 6518K 6518K 78643K 10569 0 0 pcb 13 8K 8K 78643K 19 0 0 rtable 105 3K 3K 78643K 201 0 0 ifaddr 38 10K 10K 78643K 39 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1471 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1216 76K 76K 78643K 1226 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 1K 1K 78643K 2 0 0 sem 2 0K 0K 78643K 2 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 5 13K 25K 78643K 41 0 0 proc 59 63K 95K 78643K 438 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 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 30 132K 132K 78643K 30 0 0 exec 0 0K 1K 78643K 207 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 104 21K 23K 78643K 1031 0 0 UVM aobj 3 2K 2K 78643K 3 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 2 0 0 NDP 10 0K 0K 78643K 10 0 0 temp 88 3548K 3612K 78643K 3466 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 6 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 19 0 17 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 29 0 19 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 33 0 33 1 0 1 1 0 8 1 tcpcb 544 15 0 10 1 0 1 1 0 8 0 inpcb 280 48 0 40 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 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 12 0 0 1 0 1 1 0 8 0 pfstkey 112 12 0 0 1 0 1 1 0 8 0 pfstate 328 12 0 0 1 0 1 1 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 256 213 0 0 14 0 14 14 0 8 0 art_table 32 214 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1438 0 33 46 0 46 46 0 8 0 ffsino 272 1438 0 33 94 0 94 94 0 8 0 nchpl 144 1684 0 72 60 0 60 60 0 8 0 uvmvnodes 72 1488 0 0 28 0 28 28 0 8 0 vnodes 208 1488 0 0 79 0 79 79 0 8 0 namei 1024 4275 0 4274 1 0 1 1 0 8 0 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 4482 0 4476 2 1 1 2 0 8 0 plimitpl 152 15 0 7 1 0 1 1 0 8 0 sigapl 432 239 0 224 3 0 3 3 0 8 1 futexpl 56 182 0 182 1 0 1 1 0 8 1 knotepl 112 53 0 34 1 0 1 1 0 8 0 kqueuepl 104 6 0 4 1 0 1 1 0 8 0 pipepl 112 152 0 133 1 0 1 1 0 8 0 fdescpl 488 240 0 224 3 0 3 3 0 8 0 filepl 152 1194 0 1093 5 0 5 5 0 8 1 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 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 51 0 42 1 0 1 1 0 8 0 zombiepl 144 224 0 224 1 0 1 1 0 8 1 processpl 896 255 0 224 4 0 4 4 0 8 0 procpl 632 280 0 239 4 0 4 4 0 8 0 sockpl 384 96 0 76 3 0 3 3 0 8 1 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 175 0 0 21 0 21 21 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 198 0 0 12 0 12 12 0 8 0 bufpl 256 6204 0 1310 306 0 306 306 0 8 0 anonpl 16 40285 0 22538 74 1 73 73 0 124 1 amapchunkpl 152 1091 0 949 11 0 11 11 0 158 5 amappl16 192 1119 0 145 49 0 49 49 0 8 0 amappl15 184 7 0 5 1 0 1 1 0 8 0 amappl14 176 49 0 44 1 0 1 1 0 8 0 amappl13 168 6 0 4 1 0 1 1 0 8 0 amappl12 160 7 0 7 1 1 0 1 0 8 0 amappl11 152 57 0 42 1 0 1 1 0 8 0 amappl10 144 20 0 14 1 0 1 1 0 8 0 amappl9 136 603 0 600 1 0 1 1 0 8 0 amappl8 128 162 0 135 1 0 1 1 0 8 0 amappl7 120 39 0 35 1 0 1 1 0 8 0 amappl6 112 61 0 50 1 0 1 1 0 8 0 amappl5 104 129 0 116 1 0 1 1 0 8 0 amappl4 96 492 0 460 1 0 1 1 0 8 0 amappl3 88 108 0 102 1 0 1 1 0 8 0 amappl2 80 1007 0 934 3 0 3 3 0 8 1 amappl1 72 15112 0 14678 25 7 18 20 0 8 8 amappl 80 527 0 482 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 240 0 224 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 240 0 224 1 0 1 1 0 8 0 vmmpekpl 168 6004 0 5976 2 0 2 2 0 8 0 vmmpepl 168 36834 0 34719 141 6 135 135 0 357 43 vmsppl 368 239 0 224 2 0 2 2 0 8 0 pdppl 4096 487 0 448 6 0 6 6 0 8 1 pvpl 32 133623 0 112730 174 0 174 174 0 265 3 pmappl 232 239 0 224 2 0 2 2 0 8 1 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 466 0 3 14 0 14 14 0 8 0