Warning: Permanently added '10.128.0.152' (ED25519) to the list of known hosts. executing program kernel: integer divide fault trap, code=0 Stopped at rc4_keysetup+0xaf: divl 0xffffffffffffffac(%rbp),%eax ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace rc4_keysetup(ffff8000212d27da,ffff8000212d28ec,0) at rc4_keysetup+0xaf pipex_mppe_init(ffff8000212d27a0,ffff91cf,a6a,ffff800000ba2e6c,ffff91cf) at pipex_mppe_init+0x212 pipex_init_session(ffff80002128a378,ffff800000ba2c00) at pipex_init_session+0x5e1 pppacioctl(4086337,82907003,ffff800000ba2c00,1,ffff800021233a48) at pppacioctl+0x156 VOP_IOCTL(fffffd806fb29008,82907003,ffff800000ba2c00,1,fffffd807f7d7888,ffff800021233a48) at VOP_IOCTL+0x96 vn_ioctl(fffffd806e5de600,82907003,ffff800000ba2c00,ffff800021233a48) at vn_ioctl+0xbc sys_ioctl(ffff800021233a48,ffff80002128a6c8,ffff80002128a710) at sys_ioctl+0x4a2 syscall(ffff80002128a790) at syscall+0x4c3 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe68c0, count: -9 ddb{1}> show registers rdi 0xffff8000212d27da rsi 0 rbp 0xffff80002128a200 rbx 0 rdx 0 rcx 0 rax 0x1 r8 0x60 r9 0x2f2d33bf r10 0xfe09de4b5ac4e13d r11 0xededeb4ff5ccda31 r12 0xffff8000212d28ec r13 0 r14 0xffff8000212d27da r15 0 rip 0xffffffff814ec96f rc4_keysetup+0xaf cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002128a1a0 ss 0x10 rc4_keysetup+0xaf: divl 0xffffffffffffffac(%rbp),%eax ddb{1}> show proc PROC (syz-executor408546519) pid=306983 stat=onproc flags process=2 proc=0 pri=54, usrpri=54, nice=20 forw=0xffffffffffffffff, list=0xffff800021232008,0xffffffff82aab1a8 process=0xffff80002129a9a0 user=0xffff800021285000, vmspace=0xfffffd806ef72b88 estcpu=4, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *19124 306983 96164 0 7 0x2 syz-executor408546519 96164 142409 59099 0 3 0x10008a sigsusp ksh 59099 365537 86212 0 3 0x9a kqread sshd 76359 294233 1 0 3 0x100083 ttyin getty 86212 110407 1 0 3 0x88 kqread sshd 73030 80322 70613 74 3 0x1100092 bpf pflogd 70613 377667 1 0 3 0x80 netio pflogd 18127 15892 93156 73 3 0x1100090 kqread syslogd 93156 31548 1 0 3 0x100082 netio syslogd 88211 504747 1 0 3 0x100080 kqread resolvd 31416 334480 93176 77 3 0x100092 kqread dhcpleased 53793 389064 93176 77 3 0x100092 kqread dhcpleased 93176 192046 1 0 3 0x80 kqread dhcpleased 90668 212087 0 0 3 0x14200 bored smr 28075 439488 0 0 3 0x14200 pgzero zerothread 6153 224451 0 0 3 0x14200 aiodoned aiodoned 6230 31433 0 0 3 0x14200 syncer update 89000 264688 0 0 3 0x14200 cleaner cleaner 42397 507316 0 0 3 0x14200 reaper reaper 82308 311565 0 0 3 0x14200 pgdaemon pagedaemon 41732 402900 0 0 3 0x14200 bored viomb 52665 58623 0 0 3 0x40014200 acpi0 acpi0 76832 238605 0 0 3 0x40014200 idle1 54482 256934 0 0 3 0x14200 bored softnet 85987 150803 0 0 3 0x14200 bored softnet 91054 275902 0 0 3 0x14200 bored softnet 3684 29939 0 0 3 0x14200 bored softnet 50364 260992 0 0 3 0x14200 bored systqmp 62075 466400 0 0 3 0x14200 bored systq 79403 390956 0 0 3 0x40014200 bored softclock 94942 259753 0 0 7 0x40014200 idle0 1 500311 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 19124 (syz-executor408546519) thread 0xffff800021233a48 (306983) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82aa2ee0) #0 witness_lock+0x44d #1 vn_ioctl+0x41 #2 sys_ioctl+0x4a2 #3 syscall+0x4c3 #4 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10158 6457K 6457K 78643K 11248 0 pcb 13 8K 8K 78643K 13 0 rtable 58 1K 2K 78643K 107 0 ifaddr 34 8K 8K 78643K 37 0 counters 44 34K 34K 78643K 44 0 ioctlops 1 1K 4K 78643K 1480 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1168 73K 73K 78643K 1181 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 1 0K 0K 78643K 1 0 proc 67 91K 91K 78643K 282 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 0K 78643K 11 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 25 122K 122K 78643K 25 0 exec 0 0K 2K 78643K 431 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 62K 78643K 8 0 UVM amap 56 3K 5K 78643K 1525 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 5 0K 0K 78643K 5 0 temp 25 4709K 4773K 78643K 2500 0 kqueue 11 16K 18K 78643K 24 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 17 0 14 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 144 35 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 2 1 1 1 0 8 1 tcpcb 768 8 0 5 1 0 1 1 0 8 0 arp 120 2 0 0 1 0 1 1 0 8 0 inpcb 320 32 0 26 1 0 1 1 0 8 0 mppekey 1024 1 0 0 1 0 1 1 0 8 0 ppxss 1256 2 0 0 1 0 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 8 0 0 1 0 1 1 0 8 0 pfstkey 120 8 0 0 1 0 1 1 0 8 0 pfstate 336 8 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 96 0 0 6 0 6 6 0 8 0 art_table 32 97 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1426 0 40 87 0 87 87 0 8 0 ffsino 272 1426 0 40 93 0 93 93 0 8 0 nchpl 144 1612 0 48 58 0 58 58 0 8 0 uvmvnodes 80 1436 0 0 30 0 30 30 0 8 0 vnodes 216 1436 0 0 80 0 80 80 0 8 0 namei 1024 4385 0 4385 2 1 1 1 0 8 1 percpumem 16 34 0 0 1 0 1 1 0 8 0 kstatmem 264 10 0 0 1 0 1 1 0 8 0 scxspl 216 3836 0 3836 2 1 1 2 0 8 1 plimitpl 152 16 0 9 1 0 1 1 0 8 0 sigapl 424 322 0 290 5 1 4 5 0 8 0 knotepl 120 45 0 0 2 0 2 2 0 8 0 kqueuepl 216 20 0 13 1 0 1 1 0 8 0 pipepl 320 86 0 83 2 1 1 1 0 8 0 fdescpl 496 305 0 290 3 0 3 3 0 8 0 filepl 152 1183 0 1124 3 0 3 3 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 104 69 0 57 1 0 1 1 0 8 0 zombiepl 144 290 0 290 2 1 1 1 0 8 1 processpl 1064 322 0 290 3 0 3 3 0 8 0 procpl 672 322 0 290 4 1 3 4 0 8 0 sockpl 488 84 0 60 5 1 4 4 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 74 0 0 9 0 9 9 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 123 0 0 8 0 8 8 0 8 0 bufpl 288 1988 0 85 136 0 136 136 0 8 0 anonpl 24 37637 0 35650 18 4 14 15 0 186 2 amapchunkpl 152 2762 0 2666 6 2 4 6 0 158 0 amappl16 200 31 0 30 2 1 1 1 0 8 0 amappl15 192 67 0 63 1 0 1 1 0 8 0 amappl13 176 34 0 33 2 1 1 1 0 8 0 amappl12 168 3 0 3 2 1 1 1 0 8 1 amappl11 160 66 0 49 1 0 1 1 0 8 0 amappl10 152 3 0 1 1 0 1 1 0 8 0 amappl9 144 473 0 471 1 0 1 1 0 8 0 amappl8 136 365 0 364 2 1 1 1 0 8 0 amappl7 128 66 0 59 1 0 1 1 0 8 0 amappl6 120 91 0 85 1 0 1 1 0 8 0 amappl5 112 90 0 77 1 0 1 1 0 8 0 amappl4 104 633 0 611 1 0 1 1 0 8 0 amappl3 96 480 0 455 1 0 1 1 0 8 0 amappl2 88 312 0 283 1 0 1 1 0 8 0 amappl1 80 9483 0 9069 12 2 10 10 0 8 0 amappl 88 1245 0 1206 2 1 1 2 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 305 0 290 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 305 0 290 1 0 1 1 0 8 0 vmmpekpl 168 6256 0 6236 1 0 1 1 0 8 0 vmmpepl 168 26858 0 25997 48 6 42 42 0 357 3 vmsppl 368 304 0 290 2 0 2 2 0 8 0 rwobjpl 56 9628 0 7621 31 1 30 30 0 8 0 pdppl 4096 617 0 580 55 18 37 45 0 8 0 pvpl 32 126232 0 122271 41 6 35 35 0 265 2 pmappl 248 304 0 290 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 412 0 22 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82948ff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82aa2cd8) at __mp_lock+0x122 softintr_dispatch(0) at softintr_dispatch+0x4e Xsoftclock() at Xsoftclock+0x1f acpicpu_idle() at acpicpu_idle+0x312 sched_idle(ffffffff82948ff0) at sched_idle+0x417 end trace frame: 0x0, count: -8 ddb{0}> machine ddbcpu 1 Stopped at rc4_keysetup+0xaf: divl 0xffffffffffffffac(%rbp),%eax ddb{1}> trace rc4_keysetup(ffff8000212d27da,ffff8000212d28ec,0) at rc4_keysetup+0xaf pipex_mppe_init(ffff8000212d27a0,ffff91cf,a6a,ffff800000ba2e6c,ffff91cf) at pipex_mppe_init+0x212 pipex_init_session(ffff80002128a378,ffff800000ba2c00) at pipex_init_session+0x5e1 pppacioctl(4086337,82907003,ffff800000ba2c00,1,ffff800021233a48) at pppacioctl+0x156 VOP_IOCTL(fffffd806fb29008,82907003,ffff800000ba2c00,1,fffffd807f7d7888,ffff800021233a48) at VOP_IOCTL+0x96 vn_ioctl(fffffd806e5de600,82907003,ffff800000ba2c00,ffff800021233a48) at vn_ioctl+0xbc sys_ioctl(ffff800021233a48,ffff80002128a6c8,ffff80002128a710) at sys_ioctl+0x4a2 syscall(ffff80002128a790) at syscall+0x4c3 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe68c0, count: -9 ddb{1}>