panic: malformed IPv4 option passed to ip_optcopy Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *284071 69354 0 0 0x4000000 1 syz-executor.5 214652 25859 0 0x14000 0x40000200 0 softclock db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82913ff7) at panic+0x17b sys/kern/subr_prf.c:198 ip_fragment(fffffd8078fc9f00,ffff80002a223de8,ffff8000001a02a8,5dc) at ip_fragment+0x5b4 ip_output(fffffd8078fc9f00,0,fffffd80782826b0,22,0,0,fe12a598db57c7f9) at ip_output+0xe3c sys/netinet/ip_output.c:478 divert_output(fffffd8078282638,fffffd8078fc9f00,fffffd806eef1100,0) at divert_output+0x30a sys/netinet/ip_divert.c:174 sosend(ffff800000e97000,fffffd806eef1100,ffff80002a224050,0,0,0) at sosend+0x66d sendit(ffff80002a188010,3,ffff80002a2241e8,0,ffff80002a2241d8) at sendit+0x65d sys/kern/uipc_syscalls.c:786 sys_sendmmsg(ffff80002a188010,ffff80002a224390,ffff80002a2242e0) at sys_sendmmsg+0x344 sys/kern/uipc_syscalls.c:677 syscall(ffff80002a224390) at syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a224390) at syscall+0x5ae sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd52bc708920, count: 5 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 *cpu1: malformed IPv4 option passed to ip_optcopy ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82913ff7) at panic+0x17b sys/kern/subr_prf.c:198 ip_fragment(fffffd8078fc9f00,ffff80002a223de8,ffff8000001a02a8,5dc) at ip_fragment+0x5b4 ip_output(fffffd8078fc9f00,0,fffffd80782826b0,22,0,0,fe12a598db57c7f9) at ip_output+0xe3c sys/netinet/ip_output.c:478 divert_output(fffffd8078282638,fffffd8078fc9f00,fffffd806eef1100,0) at divert_output+0x30a sys/netinet/ip_divert.c:174 sosend(ffff800000e97000,fffffd806eef1100,ffff80002a224050,0,0,0) at sosend+0x66d sendit(ffff80002a188010,3,ffff80002a2241e8,0,ffff80002a2241d8) at sendit+0x65d sys/kern/uipc_syscalls.c:786 sys_sendmmsg(ffff80002a188010,ffff80002a224390,ffff80002a2242e0) at sys_sendmmsg+0x344 sys/kern/uipc_syscalls.c:677 syscall(ffff80002a224390) at syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a224390) at syscall+0x5ae sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd52bc708920, count: -10 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a223c30 rbx 0xffff800029ceccb7 rdx 0 rcx 0xffff80002a188010 rax 0xffff800029cebff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xe7e98c73914f4d93 r11 0x7c67db23d82ae586 r12 0xffff800029cecab8 r13 0 r14 0 r15 0x1 rip 0xffffffff827c0c6c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002a223c20 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.5) tid=284071 pid=69354 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a22daa0,0xffff80002a187d78 process=0xffff80003739f0f8 user=0xffff80002a21f000, vmspace=0xfffffd80697b8020 estcpu=9, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 89095 234090 34604 0 3 0x80 nanoslp syz-executor.3 89095 507176 34604 0 3 0x4000080 netcon2 syz-executor.3 89095 477158 34604 0 3 0x4000080 fsleep syz-executor.3 69354 443004 81761 0 2 0 syz-executor.5 *69354 284071 81761 0 7 0x4000000 syz-executor.5 50236 401656 33824 0 2 0 syz-executor.6 50236 478357 33824 0 3 0x4000080 fsleep syz-executor.6 50236 410683 33824 0 2 0x4000000 syz-executor.6 30091 26254 28524 0 2 0 syz-executor.2 90243 141437 50305 0 2 0x480 syz-executor.0 90243 365404 50305 0 3 0x4000080 fsleep syz-executor.0 90243 21914 50305 0 3 0x4000080 lockf syz-executor.0 90243 146544 50305 0 3 0x4000080 fsleep syz-executor.0 80334 515353 44333 0 3 0x82 piperd syz-executor.1 33824 42035 44333 0 3 0x82 nanoslp syz-executor.6 81761 155642 44333 0 3 0x82 nanoslp syz-executor.5 34604 178967 44333 0 3 0x82 nanoslp syz-executor.3 50305 314338 44333 0 3 0x82 nanoslp syz-executor.0 28524 494730 44333 0 3 0x82 nanoslp syz-executor.2 82228 65854 0 0 3 0x14280 nfsidl nfsio 17697 170172 0 0 3 0x14280 nfsidl nfsio 82104 394939 0 0 3 0x14280 nfsidl nfsio 68078 392257 0 0 3 0x14280 nfsidl nfsio 19029 78487 0 0 3 0x14280 nfsidl nfsio 56505 307668 0 0 3 0x14200 bored sosplice 26853 337226 44333 0 3 0x82 nanoslp syz-executor.7 44333 407369 17873 0 3 0x2000082 wait syz-fuzzer 44333 323356 17873 0 3 0x6000082 thrsleep syz-fuzzer 44333 73527 17873 0 3 0x6000082 wait syz-fuzzer 44333 239618 17873 0 3 0x6000082 wait syz-fuzzer 44333 332186 17873 0 3 0x6000082 thrsleep syz-fuzzer 44333 326249 17873 0 3 0x6000082 thrsleep syz-fuzzer 44333 453885 17873 0 3 0x6000082 thrsleep syz-fuzzer 44333 2876 17873 0 3 0x6000082 wait syz-fuzzer 44333 275161 17873 0 3 0x6000082 wait syz-fuzzer 44333 165366 17873 0 3 0x6000082 kqread syz-fuzzer 44333 38626 17873 0 3 0x6000082 thrsleep syz-fuzzer 44333 298471 17873 0 3 0x6000082 thrsleep syz-fuzzer 44333 66467 17873 0 3 0x6000082 wait syz-fuzzer 44333 86246 17873 0 3 0x6000082 thrsleep syz-fuzzer 44333 114220 17873 0 3 0x6000082 thrsleep syz-fuzzer 44333 509500 17873 0 3 0x6000082 wait syz-fuzzer 17873 419404 66837 0 3 0x10008a sigsusp ksh 66837 99188 22018 0 3 0x9a kqread sshd 8446 462697 1 0 3 0x100083 ttyin getty 22018 344608 1 0 3 0x88 kqread sshd 11442 240446 81792 74 3 0x1100092 bpf pflogd 81792 483962 1 0 3 0x80 netio pflogd 93443 275743 50929 73 3 0x1100090 kqread syslogd 50929 521834 1 0 3 0x100082 netio syslogd 96152 199125 1 0 3 0x100080 kqread resolvd 56804 92168 11216 77 3 0x100092 kqread dhcpleased 25628 449693 11216 77 3 0x100092 kqread dhcpleased 11216 491118 1 0 3 0x80 kqread dhcpleased 27453 373338 0 0 3 0x14200 bored smr 16305 358168 0 0 2 0x14200 zerothread 60094 214978 0 0 3 0x14200 aiodoned aiodoned 35956 227942 0 0 3 0x14200 syncer update 22500 270585 0 0 3 0x14200 cleaner cleaner 45222 206176 0 0 3 0x14200 reaper reaper 30412 29955 0 0 3 0x14200 pgdaemon pagedaemon 9448 50679 0 0 3 0x14200 bored viomb 55818 271644 0 0 3 0x40014200 acpi0 acpi0 90516 406131 0 0 3 0x40014200 idle1 88454 441570 0 0 3 0x14200 bored softnet3 33876 210902 0 0 3 0x14200 bored softnet2 39678 303693 0 0 3 0x14200 bored softnet1 21582 210580 0 0 3 0x14200 bored softnet0 44260 43298 0 0 3 0x14200 bored systqmp 854 498666 0 0 3 0x14200 bored systq 49813 79744 0 0 3 0x14200 tmoslp softclockmp 25859 214652 0 0 7 0x40014200 softclock 11651 149430 0 0 3 0x40014200 idle0 1 510369 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 69354 (syz-executor.5) thread 0xffff80002a188010 (284071) exclusive rwlock inet r = 0 (0xffff800000e97018) #0 witness_lock+0x447 #1 sosend+0x4fe sys/kern/uipc_socket.c:642 #2 sendit+0x65d sys/kern/uipc_syscalls.c:786 #3 sys_sendmmsg+0x344 sys/kern/uipc_syscalls.c:677 #4 syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline] #4 syscall+0x5ae sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 shared rwlock netlock r = 0 (0xffffffff82d1e1a0) #0 witness_lock+0x447 #1 solock_shared+0x68 sys/kern/uipc_socket2.c:374 #2 sosend+0x4fe sys/kern/uipc_socket.c:642 #3 sendit+0x65d sys/kern/uipc_syscalls.c:786 #4 sys_sendmmsg+0x344 sys/kern/uipc_syscalls.c:677 #5 syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline] #5 syscall+0x5ae sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10193 6497K 7327K 166960K 18492 0 pcb 15 18K 23K 166960K 592 0 rtable 219 14K 16K 166960K 1065 0 pf 32 9K 10K 166960K 116 0 ifaddr 42 15K 16K 166960K 118 0 ifgroup 55 2K 2K 166960K 176 0 sysctl 3 0K 0K 166960K 3 0 counters 64 36K 36K 166960K 128 0 ioctlops 0 0K 4K 166960K 1834 0 iov 0 0K 32K 166960K 772 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1444 90K 91K 166960K 3972 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 59 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 243 0 dirhash 12 2K 2K 166960K 51 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 15 53K 81K 166960K 5352 0 sigio 0 0K 0K 166960K 157 0 proc 69 91K 115K 166960K 1056 0 subproc 104 6K 6K 166960K 251 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 491 0 in_multi 88 6K 7K 166960K 301 0 ether_multi 1 0K 0K 166960K 8 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 1211 0 pfkey data 0 0K 4K 166960K 9 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 376 137K 151K 166960K 54578 0 UVM aobj 131 9K 9K 166960K 141 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 187 0 NDP 12 0K 1K 166960K 82 0 temp 74 6772K 7408K 166960K 47169 0 kqueue 12 18K 26K 166960K 459 0 SYN cache 2 36K 44K 166960K 3 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 382 0 379 7 6 1 3 0 8 0 rtentry 112 296 0 197 4 0 4 4 0 8 0 unpcb 144 3303 0 3288 33 32 1 6 0 8 0 syncache 336 44 0 44 11 11 0 1 0 8 0 tcpqe 32 86 0 86 7 7 0 1 0 8 0 tcpcb 808 1641 0 1622 75 72 3 16 0 8 0 arp 120 61 0 44 1 0 1 1 0 8 0 inpcb 392 4901 0 4876 110 107 3 17 0 8 0 nd6 136 61 0 40 1 0 1 1 0 8 0 pkpcb 40 139 0 139 4 4 0 1 0 8 0 kcovpl 48 19 0 11 1 0 1 1 0 8 0 ppxss 1168 9 0 9 3 3 0 1 0 8 0 pffrag 232 43 0 42 3 2 1 1 0 482 0 pffrnode 88 43 0 42 3 2 1 1 0 8 0 pffrent 40 123 0 122 4 3 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 158 0 148 1 0 1 1 0 8 0 pfstkey 128 158 0 148 2 0 2 2 0 8 0 pfstate 376 158 0 148 6 3 3 4 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 5 0 4 3 2 1 3 0 8 0 art_heap4 256 1079 0 655 44 14 30 31 0 8 0 art_table 32 1084 0 659 4 0 4 4 0 8 0 art_node 16 288 0 199 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 237 0 227 1 0 1 1 0 8 0 shmpl 112 138 0 10 4 0 4 4 0 8 0 dirhash 1024 43 0 26 3 0 3 3 0 8 0 dino2pl 256 8505 0 7041 92 0 92 92 0 8 0 ffsino 272 8505 0 7041 99 1 98 98 0 8 0 nchpl 144 15904 0 14256 64 0 64 64 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 52467 0 52467 5 4 1 2 0 8 1 percpumem 16 78 0 32 1 0 1 1 0 8 0 vcpupl 2048 6 0 0 1 0 1 1 0 8 0 vmpool 696 9 0 3 1 0 1 1 0 8 0 kstatmem 264 88 0 64 2 0 2 2 0 8 0 scxspl 216 45852 0 45852 22 21 1 8 1 8 1 plimitpl 152 789 0 773 1 0 1 1 0 8 0 sigapl 424 5668 0 5615 11 4 7 9 0 8 0 futexpl 64 41135 0 41131 2 1 1 1 0 8 0 knotepl 120 422 0 0 11 0 11 11 0 8 0 kqueuepl 216 1593 0 1585 30 29 1 8 0 8 0 pipepl 320 1140 0 1114 31 28 3 8 0 8 0 fdescpl 496 5628 0 5600 8 4 4 5 0 8 0 filepl 152 33320 0 33011 70 55 15 26 0 8 0 lockfpl 104 1477 0 1472 5 3 2 2 0 8 1 lockfspl 48 471 0 467 1 0 1 1 0 8 0 sessionpl 144 35 0 18 1 0 1 1 0 8 0 pgrppl 48 59 0 42 1 0 1 1 0 8 0 ucredpl 104 4417 0 4405 1 0 1 1 0 8 0 zombiepl 144 5617 0 5615 2 1 1 1 0 8 0 processpl 1136 5668 0 5615 6 0 6 6 0 8 0 procpl 680 15072 0 14996 11 3 8 9 0 8 0 srpgc 96 21 0 21 8 7 1 1 0 8 1 sosppl 168 39 0 33 1 0 1 1 0 8 0 sockpl 584 8727 0 8683 92 87 5 15 0 8 0 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 11 0 0 2 0 2 2 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 13 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 1 2 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 10 0 0 1 0 1 1 0 8 0 mcl2k 2048 296 0 0 34 6 28 34 0 8 0 mtagpl 96 279 0 0 5 0 5 5 0 8 0 mbufpl 256 1015 0 0 54 0 54 54 0 8 0 bufpl 280 12165 0 5848 452 0 452 452 0 8 0 anonpl 24 669545 0 657518 160 61 99 119 0 186 0 amapchunkpl 152 185101 0 184279 84 48 36 52 0 158 0 amappl16 200 15005 0 14502 81 51 30 43 0 8 0 amappl15 192 52 0 50 1 0 1 1 0 8 0 amappl14 184 232 0 216 2 1 1 2 0 8 0 amappl13 176 45 0 45 1 1 0 1 0 8 0 amappl12 168 6447 0 6419 3 1 2 2 0 8 0 amappl11 160 59 0 44 1 0 1 1 0 8 0 amappl10 152 51 0 38 1 0 1 1 0 8 0 amappl9 144 229 0 229 4 3 1 1 0 8 1 amappl8 136 441 0 346 4 0 4 4 0 8 0 amappl7 128 220 0 192 2 1 1 2 0 8 0 amappl6 120 469 0 457 1 0 1 1 0 8 0 amappl5 112 226 0 215 1 0 1 1 0 8 0 amappl4 104 610 0 579 2 1 1 2 0 8 0 amappl3 96 33989 0 33904 4 1 3 3 0 8 0 amappl2 88 6330 0 6252 3 1 2 3 0 8 0 amappl1 80 28943 0 28391 24 11 13 23 0 8 0 amappl 88 53794 0 53568 7 0 7 7 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 72 140 0 10 3 0 3 3 0 8 0 uaddrrnd 24 5638 0 5604 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5638 0 5604 1 0 1 1 0 8 0 vmmpekpl 168 46760 0 46698 4 0 4 4 0 8 0 vmmpepl 168 354786 0 352356 224 103 121 150 0 357 1 vmsppl 448 5637 0 5604 6 1 5 5 0 8 0 rwobjpl 56 96349 0 88657 117 6 111 113 0 8 0 pdppl 4096 11283 0 11214 267 194 73 79 0 8 4 pvpl 32 44845 0 0 362 0 362 362 0 265 0 pmappl 248 5637 0 5604 5 2 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 814 0 401 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82c9aff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82e6f748) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82e6f748) at __mp_lock+0x122 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82e6f748,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x46f sys/kern/sched_bsd.c:470 sleep_finish(0,1) at sleep_finish+0x19b sys/kern/kern_synch.c:414 msleep(ffffffff82e3c6d0,ffffffff82cdd840,0,ffffffff828818df,0) at msleep+0xea sys/kern/kern_synch.c:249 softclock_thread(ffff80002a0fbff0) at softclock_thread+0xd0 sys/kern/kern_timeout.c:810 end trace frame: 0x0, count: 6 ddb{0}> trace x86_ipi_db(ffffffff82c9aff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82e6f748) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82e6f748) at __mp_lock+0x122 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82e6f748,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x46f sys/kern/sched_bsd.c:470 sleep_finish(0,1) at sleep_finish+0x19b sys/kern/kern_synch.c:414 msleep(ffffffff82e3c6d0,ffffffff82cdd840,0,ffffffff828818df,0) at msleep+0xea sys/kern/kern_synch.c:249 softclock_thread(ffff80002a0fbff0) at softclock_thread+0xd0 sys/kern/kern_timeout.c:810 end trace frame: 0x0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82913ff7) at panic+0x17b sys/kern/subr_prf.c:198 ip_fragment(fffffd8078fc9f00,ffff80002a223de8,ffff8000001a02a8,5dc) at ip_fragment+0x5b4 ip_output(fffffd8078fc9f00,0,fffffd80782826b0,22,0,0,fe12a598db57c7f9) at ip_output+0xe3c sys/netinet/ip_output.c:478 divert_output(fffffd8078282638,fffffd8078fc9f00,fffffd806eef1100,0) at divert_output+0x30a sys/netinet/ip_divert.c:174 sosend(ffff800000e97000,fffffd806eef1100,ffff80002a224050,0,0,0) at sosend+0x66d sendit(ffff80002a188010,3,ffff80002a2241e8,0,ffff80002a2241d8) at sendit+0x65d sys/kern/uipc_syscalls.c:786 sys_sendmmsg(ffff80002a188010,ffff80002a224390,ffff80002a2242e0) at sys_sendmmsg+0x344 sys/kern/uipc_syscalls.c:677 syscall(ffff80002a224390) at syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a224390) at syscall+0x5ae sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd52bc708920, count: 5 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82913ff7) at panic+0x17b sys/kern/subr_prf.c:198 ip_fragment(fffffd8078fc9f00,ffff80002a223de8,ffff8000001a02a8,5dc) at ip_fragment+0x5b4 ip_output(fffffd8078fc9f00,0,fffffd80782826b0,22,0,0,fe12a598db57c7f9) at ip_output+0xe3c sys/netinet/ip_output.c:478 divert_output(fffffd8078282638,fffffd8078fc9f00,fffffd806eef1100,0) at divert_output+0x30a sys/netinet/ip_divert.c:174 sosend(ffff800000e97000,fffffd806eef1100,ffff80002a224050,0,0,0) at sosend+0x66d sendit(ffff80002a188010,3,ffff80002a2241e8,0,ffff80002a2241d8) at sendit+0x65d sys/kern/uipc_syscalls.c:786 sys_sendmmsg(ffff80002a188010,ffff80002a224390,ffff80002a2242e0) at sys_sendmmsg+0x344 sys/kern/uipc_syscalls.c:677 syscall(ffff80002a224390) at syscall+0x5ae mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a224390) at syscall+0x5ae sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd52bc708920, count: -10