panic: Caught invalid memory access at ffff8000018cd190 size 36 op 1 Stopped at db_enter+0x17: popq %rbp TID PID UID PRFLAGS PFLAGS CPU COMMAND 446795 92443 0 0 0 0 syz-executor * 5472 21223 0 0 0x4000000 1 syz-executor db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff84632b4f) at panic+0x270 sys/kern/subr_prf.c:198 kasan_memcpy(ffff8000018cd190,ffff80003ab2f280,24) at kasan_memcpy+0x1ec sysctl_sysvipc(ffff80003ab2f948,1,200000000180,ffff80003ab2f920) at sysctl_sysvipc+0x397 sys/kern/kern_sysctl.c:2712 kern_sysctl_dirs(33,ffff80003ab2f948,1,200000000180,ffff80003ab2f920,0,1,1ffff00007565ea0) at kern_sysctl_dirs+0x30f sys/kern/kern_sysctl.c:429 kern_sysctl(ffff80003ab2f944,2,200000000180,ffff80003ab2f920,0,fffa,ffff80003ab2fb90) at kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 sys_sysctl(ffff800039efafb8,ffff80003ab2fb90,ffff80003ab2fb00) at sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 syscall(ffff80003ab2fb90) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ab2fb90) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdde00e12ab0, count: 6 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: Caught invalid memory access at ffff8000018cd190 size 36 op 1 ddb{1}> show kasan KASAN: invalid write of 36 bytes at 0xffff8000018cd190 from pc 0xffffffff83a4a827 KASAN: first bad byte at 0xffff8000018cd193 (+3); shadow 0x03: partial granule (out-of-bounds) KASAN: 0xffff8000018cd193 is 3 bytes inside the 16-byte malloc slot [0xffff8000018cd190..0xffff8000018cd1a0) KASAN: allocated at: #0 malloc+0xda0 sys/kern/kern_malloc.c:446 #1 sysctl_sysvipc+0x377 sys/kern/kern_sysctl.c:-1 #2 kern_sysctl_dirs+0x30f sys/kern/kern_sysctl.c:429 #3 kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 #4 sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 #5 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 KASAN: pc: sysctl_sysvipc+0x397 KASAN: call trace: #0 kasan_memcpy+0x1ca kasan_shadow_check sys/kern/subr_kasan.c:-1 [inline] #0 kasan_memcpy+0x1ca sys/kern/subr_kasan.c:1025 #1 sysctl_sysvipc+0x397 sys/kern/kern_sysctl.c:2712 #2 kern_sysctl_dirs+0x30f sys/kern/kern_sysctl.c:429 #3 kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 #4 sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 #5 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 KASAN: shadow of 0xffff8000018cd080..0xffff8000018cd300 (1 cell = 8 bytes): 0xffff8000018cd080: 04 fb fc 08 07 fb fc 08 08 fb fc 08 fc 08 08 fb 0xffff8000018cd100: fc 08 fc 08 fc 08 fc 08 fb 08 fc 08 fc 08 fc 08 >0xffff8000018cd180: 08 fb[03]fb 08 fb 04 fb fc 08 fc 08 fc 08 fc 08 0xffff8000018cd200: fc 08 fc 08 fc 08 fc 08 fc 08 08 fb 08 fb 06 fb 0xffff8000018cd280: 04 fb 06 fb 08 fb fc 08 08 fb fc 08 fc 08 fc 08 KASAN: legend: 00 valid; 01..07 partial; fb malloc redzone; fc malloc freed; fd pool freed; fe kmem; fa global; f1..f4/f8 stack/scope ddb{1}> trace db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff84632b4f) at panic+0x270 sys/kern/subr_prf.c:198 kasan_memcpy(ffff8000018cd190,ffff80003ab2f280,24) at kasan_memcpy+0x1ec sysctl_sysvipc(ffff80003ab2f948,1,200000000180,ffff80003ab2f920) at sysctl_sysvipc+0x397 sys/kern/kern_sysctl.c:2712 kern_sysctl_dirs(33,ffff80003ab2f948,1,200000000180,ffff80003ab2f920,0,1,1ffff00007565ea0) at kern_sysctl_dirs+0x30f sys/kern/kern_sysctl.c:429 kern_sysctl(ffff80003ab2f944,2,200000000180,ffff80003ab2f920,0,fffa,ffff80003ab2fb90) at kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 sys_sysctl(ffff800039efafb8,ffff80003ab2fb90,ffff80003ab2fb00) at sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 syscall(ffff80003ab2fb90) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ab2fb90) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdde00e12ab0, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003ab2f090 rbx 0xffff80003ab2f100 rdx 0 rcx 0xffff800028fe3ff0 rax 0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xffff80003ab2ee78 r11 0xffffffff8416f5d0 x86_bus_space_io_read_1 r12 0xffffffff84632b4f .str.28+0x9b28f r13 0xffff800028fe4c08 r14 0xffff800028fe4e07 r15 0x1 rip 0xffffffff82a38477 db_enter+0x17 cs 0x8 rflags 0x246 rsp 0xffff80003ab2f090 ss 0x10 db_enter+0x17: popq %rbp ddb{1}> show proc PROC (syz-executor) tid=5472 pid=21223 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=83, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003ab1eaa0,0xffff800039efa568 process=0xffff80003ab20e98 user=0xffff80003ab24000, vmspace=0xffff800000d8ad58 estcpu=33, cpticks=21, pctcpu=0.14, user=0, sys=21, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 92443 446795 95316 0 7 0 syz-executor 92443 124076 95316 0 2 0x4000000 syz-executor 15294 124442 94790 0 2 0 syz-executor 15294 186104 94790 0 3 0x4000080 fsleep syz-executor 93840 33117 78707 0 2 0 syz-executor 93840 112222 78707 0 3 0x4000080 fsleep syz-executor 21223 341854 96348 0 2 0 syz-executor *21223 5472 96348 0 7 0x4000000 syz-executor 15563 459092 14885 0 2 0xc80 syz-executor 15563 82250 14885 0 3 0x4000080 sbwait syz-executor 15563 261791 14885 0 3 0x4000080 fsleep syz-executor 25893 52989 964 0 2 0xc90 syz-executor 25893 3855 964 0 3 0x4000090 kqread syz-executor 25893 470118 964 0 3 0x4000090 fsleep syz-executor 30638 58512 91834 0 2 0xc80 syz-executor 30638 396624 91834 0 3 0x4000080 kqsel syz-executor 30638 152136 91834 0 3 0x4000080 fsleep syz-executor 36987 22771 0 0 3 0x14280 nfsidl nfsio 19003 427994 0 0 3 0x14280 nfsidl nfsio 39259 457272 0 0 3 0x14280 nfsidl nfsio 37832 194263 0 0 3 0x14280 nfsidl nfsio 89714 124868 0 0 3 0x14280 nfsidl nfsio 669 5144 0 0 3 0x14280 nfsidl nfsio 86817 27874 0 0 3 0x14280 nfsidl nfsio 12205 450520 0 0 3 0x14280 nfsidl nfsio 64737 184076 0 0 3 0x14280 nfsidl nfsio 98300 181601 0 0 3 0x14280 nfsidl nfsio 63159 460125 0 0 3 0x14280 nfsidl nfsio 72924 332141 0 0 3 0x14280 nfsidl nfsio 42944 308514 0 0 3 0x14280 nfsidl nfsio 54930 464864 0 0 3 0x14280 nfsidl nfsio 75095 450696 0 0 3 0x14280 nfsidl nfsio 81430 426664 0 0 3 0x14280 nfsidl nfsio 33078 2782 0 0 3 0x14280 nfsidl nfsio 95170 506759 0 0 3 0x14280 nfsidl nfsio 38473 114268 0 0 3 0x14280 nfsidl nfsio 86029 30943 0 0 3 0x14280 nfsidl nfsio 964 176982 41124 0 2 0xc82 syz-executor 95316 311682 41124 0 2 0x2 syz-executor 78707 226366 41124 0 2 0xc82 syz-executor 14885 128935 41124 0 2 0xc82 syz-executor 52289 113570 41124 0 2 0xc82 syz-executor 96348 380028 41124 0 2 0xc82 syz-executor 91834 103749 41124 0 2 0xc82 syz-executor 94790 143981 41124 0 2 0x2 syz-executor 41124 317371 44303 0 3 0x82 kqread syz-executor 44303 200176 97458 0 3 0x10008a sigsusp ksh 97458 293907 31864 0 3 0x98 kqread sshd-session 31864 269910 1229 0 3 0x92 kqread sshd-session 48350 250991 1 0 3 0x100083 ttyin getty 1229 315339 1 0 3 0x88 kqread sshd 38443 467310 60190 74 3 0x1100092 bpf pflogd 60190 405798 1 0 3 0x80 sbwait pflogd 65074 142231 3392 73 2 0x1100010 syslogd 3392 83210 1 0 3 0x100082 sbwait syslogd 40640 302696 1 0 3 0x100080 kqread resolvd 45428 490556 98153 77 3 0x100092 kqread dhcpleased 38330 279622 98153 77 3 0x100092 kqread dhcpleased 98153 37268 1 0 3 0x80 kqread dhcpleased 47689 239475 0 0 2 0x40014200 smr 70160 52398 0 0 2 0x14200 zerothread 95424 324629 0 0 3 0x14200 aiodoned aiodoned 42418 297794 0 0 2 0x14e00 update 46752 295910 0 0 3 0x14200 cleaner cleaner 17450 260934 0 0 3 0x14200 reaper reaper 57841 367401 0 0 3 0x14200 pgdaemon pagedaemon 5030 483042 0 0 3 0x14200 bored viomb 13580 277020 0 0 3 0x40014200 acpi0 acpi0 50477 280337 0 0 3 0x40014200 idle1 88663 5799 0 0 3 0x14200 bored softnet1 15028 355214 0 0 2 0x14200 softnet0 28155 126170 0 0 2 0x14200 systqmp 75028 127250 0 0 3 0x14200 bored systq 55531 454216 0 0 2 0x14200 softclockmp 24453 230151 0 0 3 0x40014200 tmoslp softclock 5379 21608 0 0 3 0x40014200 idle0 1 56333 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 65074 (syslogd) thread 0xffff800029913a00 (142231) exclusive rrwlock inode r = 0 (0xffff8000018a57f0) #0 witness_lock+0x632 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x632 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x53e sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xf0 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0x17e sys/kern/vfs_vops.c:527 #4 vn_lock+0xca sys/kern/vfs_vnops.c:576 #5 sys_fsync+0x200 sys/kern/vfs_syscalls.c:2890 #6 syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11078 12423K 12475K 166960K 12455 0 pcb 18 28K 33K 166960K 125 0 rtable 242 13K 13K 166960K 358 0 pf 37 23K 24K 166960K 60 0 ifaddr 46 13K 13K 166960K 51 0 ifgroup 59 2K 2K 166960K 65 0 sysctl 4 1K 13K 166960K 10 0 counters 72 43K 43K 166960K 78 0 ioctlops 0 0K 4K 166960K 1612 0 iov 0 0K 12K 166960K 10 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1373 88K 89K 166960K 1623 0 UFS quota 1 36K 36K 166960K 1 0 UFS mount 5 44K 44K 166960K 5 0 shm 2 328K 336K 166960K 16 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 26 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 292K 166960K 11964 0 file desc 18 65K 93K 166960K 381 0 sigio 0 0K 0K 166960K 40 0 proc 74 128K 161K 166960K 578 0 subproc 72 9K 9K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 20K 20K 166960K 1 0 ip_moptions 0 0K 0K 166960K 8 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 13 0 ISOFS mount 1 36K 36K 166960K 1 0 MSDOSFS mount 1 20K 20K 166960K 1 0 ttys 73 506K 506K 166960K 73 0 exec 0 0K 2K 166960K 390 0 fusefs mount 1 36K 36K 166960K 1 0 tdb 3 1K 1K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 247 245K 266K 166960K 5231 0 UVM aobj 25 4K 4K 166960K 26 0 pinsyscall 1067 1825K 1825K 166960K 1537 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 3 0 NDP 13 0K 1K 166960K 32 0 temp 44 9164K 9483K 166960K 9822 0 kqueue 13 40K 56K 166960K 69 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 28 0 0 1 0 1 1 0 8 0 rtpcb 120 35 0 32 1 0 1 1 0 8 0 rtentry 176 113 0 1 6 0 6 6 0 8 0 unpcb 144 567 0 536 6 0 6 6 0 8 4 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 736 35 0 31 1 0 1 1 0 8 0 arp 136 19 0 0 1 0 1 1 0 8 0 inpcb 328 246 0 236 7 0 7 7 0 8 6 nd6 152 25 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 3 0 3 1 0 1 1 0 8 1 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 1 0 0 1 0 1 1 0 8 0 pfosfp 40 1428 0 1428 5 0 5 5 0 8 5 pfosfpen 112 1428 0 1428 21 0 21 21 0 8 21 pfrktable 1344 1 0 1 1 0 1 1 0 8 1 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 0 1 0 1 1 0 8 0 pfstitem 24 41 0 0 1 0 1 1 0 8 0 pfstkey 128 41 0 0 2 0 2 2 0 8 0 pfstate 448 41 0 0 5 0 5 5 0 8 0 pfrule 1360 23 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 455 0 0 29 0 29 29 0 8 0 art_table 40 456 0 0 5 0 5 5 0 8 0 art_node 32 113 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 72 22 0 12 1 0 1 1 0 8 0 shmpl 112 23 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1975 0 500 93 0 93 93 0 8 0 ffsino 296 1975 0 500 114 0 114 114 0 8 0 nchpl 144 2539 0 831 64 0 64 64 0 8 0 vnodes 216 2261 0 0 126 0 126 126 0 8 0 namei 1024 8308 0 8308 1 0 1 1 0 8 1 percpumem 16 55 0 3 1 0 1 1 0 8 0 kstatmem 264 35 0 6 2 0 2 2 0 8 0 scxspl 216 8713 0 8713 4 3 1 3 1 8 1 plimitpl 152 49 0 32 1 0 1 1 0 8 0 sigapl 424 718 0 650 9 1 8 8 0 8 0 knotepl 120 173 0 0 6 0 6 6 0 8 0 kqueuepl 224 128 0 117 2 0 2 2 0 8 1 pipepl 344 207 0 179 6 0 6 6 0 8 3 fdescpl 528 682 0 650 3 0 3 3 0 8 0 filepl 160 3707 0 3474 18 0 18 18 0 8 8 lockfpl 104 255 0 251 2 0 2 2 0 8 1 lockfspl 48 127 0 123 1 0 1 1 0 8 0 sessionpl 144 43 0 34 1 0 1 1 0 8 0 pgrppl 48 53 0 36 1 0 1 1 0 8 0 ucredpl 104 459 0 443 1 0 1 1 0 8 0 zombiepl 144 651 0 650 1 0 1 1 0 8 0 processpl 1232 718 0 650 6 0 6 6 0 8 0 procpl 664 1151 0 1073 9 1 8 8 0 8 0 sockpl 752 856 0 812 17 4 13 17 0 8 8 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 119 0 0 15 0 15 15 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mextrefs 64 18 0 0 1 0 1 1 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 280 0 0 17 0 17 17 0 8 0 bufpl 272 2804 0 106 180 0 180 180 0 8 0 anonpl 32 3839 0 0 31 0 31 31 0 222 0 amapchunkpl 152 15834 0 15311 23 1 22 22 0 158 1 amappl16 200 2099 0 2066 5 3 2 5 0 8 0 amappl15 192 15 0 15 2 2 0 1 0 8 0 amappl14 184 431 0 430 1 0 1 1 0 8 0 amappl13 176 122 0 110 1 0 1 1 0 8 0 amappl12 168 937 0 906 2 0 2 2 0 8 0 amappl11 160 13 0 13 2 1 1 1 0 8 1 amappl10 152 67 0 53 1 0 1 1 0 8 0 amappl9 144 274 0 273 1 0 1 1 0 8 0 amappl8 136 100 0 97 1 0 1 1 0 8 0 amappl7 128 154 0 141 1 0 1 1 0 8 0 amappl6 120 155 0 153 1 0 1 1 0 8 0 amappl5 112 115 0 104 1 0 1 1 0 8 0 amappl4 104 300 0 281 1 0 1 1 0 8 0 amappl3 96 3157 0 3033 4 0 4 4 0 8 0 amappl2 88 547 0 485 2 0 2 2 0 8 0 amappl1 80 11546 0 10940 15 1 14 15 0 8 1 amappl 88 4455 0 4280 5 0 5 5 0 92 0 uvmvnodes 80 104 0 0 3 0 3 3 0 8 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 25 0 1 1 0 1 1 0 8 0 uaddrrnd 24 682 0 650 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 682 0 650 1 0 1 1 0 8 0 vmmpekpl 168 7708 0 7672 2 0 2 2 0 8 0 vmmpepl 168 51688 0 49707 89 2 87 88 0 357 0 vmsppl 488 681 0 650 5 1 4 5 0 8 0 rwobjpl 80 17506 0 16429 26 2 24 25 0 8 0 pdppl 4096 1373 0 1300 99 26 73 87 0 8 0 pvpl 32 11417 0 0 94 1 93 93 0 265 0 pmappl 256 681 0 650 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 120 460 0 31 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x19: leave x86_ipi_db(ffffffff8521aff0) at x86_ipi_db+0x19 sys/arch/amd64/amd64/db_interface.c:412 x86_ipi_handler() at x86_ipi_handler+0x112 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 end of kernel end trace frame: 0x709fb0d9f3e0, count: 12 ddb{0}> trace x86_ipi_db(ffffffff8521aff0) at x86_ipi_db+0x19 sys/arch/amd64/amd64/db_interface.c:412 x86_ipi_handler() at x86_ipi_handler+0x112 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 end of kernel end trace frame: 0x709fb0d9f3e0, count: -3 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x17: popq %rbp db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff84632b4f) at panic+0x270 sys/kern/subr_prf.c:198 kasan_memcpy(ffff8000018cd190,ffff80003ab2f280,24) at kasan_memcpy+0x1ec sysctl_sysvipc(ffff80003ab2f948,1,200000000180,ffff80003ab2f920) at sysctl_sysvipc+0x397 sys/kern/kern_sysctl.c:2712 kern_sysctl_dirs(33,ffff80003ab2f948,1,200000000180,ffff80003ab2f920,0,1,1ffff00007565ea0) at kern_sysctl_dirs+0x30f sys/kern/kern_sysctl.c:429 kern_sysctl(ffff80003ab2f944,2,200000000180,ffff80003ab2f920,0,fffa,ffff80003ab2fb90) at kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 sys_sysctl(ffff800039efafb8,ffff80003ab2fb90,ffff80003ab2fb00) at sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 syscall(ffff80003ab2fb90) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ab2fb90) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdde00e12ab0, count: 6 ddb{1}> trace db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff84632b4f) at panic+0x270 sys/kern/subr_prf.c:198 kasan_memcpy(ffff8000018cd190,ffff80003ab2f280,24) at kasan_memcpy+0x1ec sysctl_sysvipc(ffff80003ab2f948,1,200000000180,ffff80003ab2f920) at sysctl_sysvipc+0x397 sys/kern/kern_sysctl.c:2712 kern_sysctl_dirs(33,ffff80003ab2f948,1,200000000180,ffff80003ab2f920,0,1,1ffff00007565ea0) at kern_sysctl_dirs+0x30f sys/kern/kern_sysctl.c:429 kern_sysctl(ffff80003ab2f944,2,200000000180,ffff80003ab2f920,0,fffa,ffff80003ab2fb90) at kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 sys_sysctl(ffff800039efafb8,ffff80003ab2fb90,ffff80003ab2fb00) at sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 syscall(ffff80003ab2fb90) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003ab2fb90) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xdde00e12ab0, count: -9