panic: Caught invalid memory access at ffff8000018ca0e0 size 20 op 1 Stopped at db_enter+0x17: popq %rbp TID PID UID PRFLAGS PFLAGS CPU COMMAND 476101 19024 0 0 0 0 syz-executor *296346 19024 0 0 0x4000000 1 syz-executor db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff84637165) at panic+0x270 sys/kern/subr_prf.c:198 kasan_memcpy(ffff8000018ca0e0,ffff80003bbbb190,14) at kasan_memcpy+0x1ec sysctl_sysvipc(ffff80003bbbb808,1,200000000040,ffff80003bbbb7e0) at sysctl_sysvipc+0x63a sys/kern/kern_sysctl.c:2771 kern_sysctl_dirs(33,ffff80003bbbb808,1,200000000040,ffff80003bbbb7e0,0,1,1ffff00007777678) at kern_sysctl_dirs+0x30f sys/kern/kern_sysctl.c:429 kern_sysctl(ffff80003bbbb804,2,200000000040,ffff80003bbbb7e0,0,0,ffff80003bbbba50) at kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 sys_sysctl(ffff8000299422b0,ffff80003bbbba50,ffff80003bbbb9c0) at sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 syscall(ffff80003bbbba50) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003bbbba50) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf3551826da0, 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 ffff8000018ca0e0 size 20 op 1 ddb{1}> show kasan KASAN: invalid write of 20 bytes at 0xffff8000018ca0e0 from pc 0xffffffff8199bb7a KASAN: first bad byte at 0xffff8000018ca0e3 (+3); shadow 0x03: partial granule (out-of-bounds) KASAN: 0xffff8000018ca0e3 is 3 bytes inside the 16-byte malloc slot [0xffff8000018ca0e0..0xffff8000018ca0f0) KASAN: allocated at: #0 malloc+0xda0 sys/kern/kern_malloc.c:446 #1 sysctl_sysvipc+0x619 sys/kern/kern_sysctl.c:2766 #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+0x63a 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+0x63a sys/kern/kern_sysctl.c:2771 #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 0xffff8000018c9f80..0xffff8000018ca200 (1 cell = 8 bytes): 0xffff8000018c9f80: 08 08 08 08 08 08 08 08 08 08 08 08 08 08 08 08 0xffff8000018ca000: fc 08 fc 08 06 fb fc 08 fc 08 08 fb fc 08 08 fb >0xffff8000018ca080: fc 08 fc 08 fc 08 06 fb fc 08 fc 08[03]fb fc 08 0xffff8000018ca100: fc 08 fc 08 fc 08 fc 08 fc 08 fc 08 fc 08 fc 08 0xffff8000018ca180: fc 08 fc 08 08 fb fc 08 fc 08 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(ffffffff84637165) at panic+0x270 sys/kern/subr_prf.c:198 kasan_memcpy(ffff8000018ca0e0,ffff80003bbbb190,14) at kasan_memcpy+0x1ec sysctl_sysvipc(ffff80003bbbb808,1,200000000040,ffff80003bbbb7e0) at sysctl_sysvipc+0x63a sys/kern/kern_sysctl.c:2771 kern_sysctl_dirs(33,ffff80003bbbb808,1,200000000040,ffff80003bbbb7e0,0,1,1ffff00007777678) at kern_sysctl_dirs+0x30f sys/kern/kern_sysctl.c:429 kern_sysctl(ffff80003bbbb804,2,200000000040,ffff80003bbbb7e0,0,0,ffff80003bbbba50) at kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 sys_sysctl(ffff8000299422b0,ffff80003bbbba50,ffff80003bbbb9c0) at sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 syscall(ffff80003bbbba50) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003bbbba50) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf3551826da0, count: -9 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003bbbaf50 rbx 0xffff80003bbbafc0 rdx 0 rcx 0xffff800028ff3ff0 rax 0xffff800000164380 r8 0x101010101010101 r9 0x8080808080808080 r10 0xffff80003bbbad38 r11 0xffffffff82ba2630 x86_bus_space_io_read_1 r12 0xffffffff84637165 switch.table.intel_memory_region_create+0x9d065 r13 0xffff800028ff4c08 r14 0xffff800028ff4e07 r15 0x1 rip 0xffffffff83f26607 db_enter+0x17 cs 0x8 rflags 0x246 rsp 0xffff80003bbbaf50 ss 0x10 db_enter+0x17: popq %rbp ddb{1}> show proc PROC (syz-executor) tid=296346 pid=19024 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=0xffff800045ff67e8,0xffff800029943780 process=0xffff80003bc69368 user=0xffff80003bbb0000, vmspace=0xffff800000d8a7a0 estcpu=33, cpticks=29, pctcpu=0.9, user=0, sys=29, intr=0 ddb{1}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 89429 354124 37220 0 3 0x100002 0x88 sigsusp sh 37220 329528 51626 0 3 0x2 0x80 wait syz-executor 19024 476101 86752 0 7 0 0 syz-executor *19024 296346 86752 0 7 0 0x4000000 syz-executor 28084 386742 29704 0 2 0 0xc80 syz-executor 28084 199972 29704 0 3 0 0x4000080 kqpoll syz-executor 28084 37311 29704 0 3 0 0x4000080 fsleep syz-executor 85591 445541 1 0 3 0x100003 0x80 ttyin getty 18930 36113 0 0 3 0x14000 0x280 nfsidl nfsio 1711 85270 0 0 3 0x14000 0x280 nfsidl nfsio 61808 194282 0 0 3 0x14000 0x280 nfsidl nfsio 36659 209688 0 0 3 0x14000 0x280 nfsidl nfsio 80454 43674 0 0 3 0x14000 0x280 nfsidl nfsio 92381 304039 0 0 3 0x14000 0x280 nfsidl nfsio 29856 202558 0 0 3 0x14000 0x280 nfsidl nfsio 88837 326284 0 0 3 0x14000 0x280 nfsidl nfsio 87618 204403 0 0 3 0x14000 0x280 nfsidl nfsio 26340 69 0 0 3 0x14000 0x280 nfsidl nfsio 24698 476326 0 0 3 0x14000 0x280 nfsidl nfsio 72002 375070 0 0 3 0x14000 0x280 nfsidl nfsio 73481 259722 0 0 3 0x14000 0x280 nfsidl nfsio 25574 316237 0 0 3 0x14000 0x280 nfsidl nfsio 20853 215011 0 0 3 0x14000 0x280 nfsidl nfsio 34162 421599 0 0 3 0x14000 0x280 nfsidl nfsio 2917 311378 0 0 3 0x14000 0x280 nfsidl nfsio 93610 338329 0 0 3 0x14000 0x280 nfsidl nfsio 93855 361471 0 0 3 0x14000 0x280 nfsidl nfsio 50885 522305 0 0 3 0x14000 0x280 nfsidl nfsio 86752 370061 51626 0 2 0x2 0xc80 syz-executor 74158 364261 51626 0 2 0x2 0x80 syz-executor 74758 290961 51626 0 2 0x2 0x80 syz-executor 90085 309792 51626 0 2 0x2 0x80 syz-executor 47423 165869 51626 0 3 0x2 0x80 wait syz-executor 29704 374075 51626 0 2 0x2 0xc80 syz-executor 51626 81201 1 0 3 0x2 0x80 wait syz-executor 87375 255172 1 74 3 0x1100012 0x80 bpf pflogd 9436 340480 1 73 2 0x1100010 0 syslogd 24250 190196 0 0 2 0x14000 0x40000200 smr 46351 175891 0 0 2 0x14000 0x200 zerothread 59531 48046 0 0 3 0x14000 0x200 aiodoned aiodoned 73439 385955 0 0 2 0x14000 0xe00 update 63542 311469 0 0 3 0x14000 0x200 cleaner cleaner 77090 46988 0 0 2 0x14000 0x200 reaper 20398 514491 0 0 3 0x14000 0x200 pgdaemon pagedaemon 11218 410547 0 0 3 0x14000 0x200 bored viomb 84007 194730 0 0 3 0x14000 0x40000200 acpi0 acpi0 20721 484920 0 0 3 0x14000 0x40000200 idle1 74647 377391 0 0 3 0x14000 0x200 bored softnet1 88891 126249 0 0 3 0x14000 0x200 bored softnet0 43026 50853 0 0 3 0x14000 0x200 bored systqmp 75755 113449 0 0 3 0x14000 0x200 bored systq 13378 419085 0 0 3 0x14000 0x200 tmoslp softclockmp 3419 229558 0 0 3 0x14000 0x40000200 tmoslp softclock 58345 448207 0 0 3 0x14000 0x40000200 idle0 1 279862 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10010000 0x200 scheduler swapper ddb{1}> show all locks Process 9436 (syslogd) thread 0xffff800029923c98 (340480) exclusive rrwlock inode r = 0 (0xffff8000018a3228) #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 11059 12249K 12553K 166960K 12503 0 pcb 17 32K 42K 166960K 196 0 rtable 196 10K 13K 166960K 356 0 pf 31 21K 32793K 166960K 60 0 ifaddr 35 10K 12K 166960K 51 0 ifgroup 47 2K 2K 166960K 70 0 sysctl 3 1K 13K 166960K 8 0 counters 66 41K 43K 166960K 78 0 ioctlops 0 0K 4K 166960K 1591 0 iov 0 0K 16K 166960K 17 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1405 90K 90K 166960K 1804 0 UFS quota 1 36K 36K 166960K 1 0 UFS mount 5 44K 44K 166960K 5 0 shm 2 2K 10K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 15 3K 3K 166960K 17 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 292K 166960K 11964 0 file desc 13 45K 97K 166960K 398 0 sigio 0 0K 0K 166960K 4 0 proc 23 62K 177K 166960K 613 0 subproc 63 7K 10K 166960K 181 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 20K 20K 166960K 1 0 ip_moptions 0 0K 0K 166960K 3 0 in_multi 77 5K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 15 0 ISOFS mount 1 36K 36K 166960K 1 0 MSDOSFS mount 1 20K 20K 166960K 1 0 ttys 127 870K 870K 166960K 127 0 exec 0 0K 2K 166960K 406 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 124 119K 254K 166960K 5268 0 UVM aobj 88 6K 6K 166960K 89 0 pinsyscall 1043 1795K 1815K 166960K 1569 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1 0 NDP 10 0K 2K 166960K 32 0 temp 35 9162K 9182K 166960K 6741 0 kqueue 4 13K 56K 166960K 73 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 34 0 34 1 0 1 1 0 8 1 rtentry 176 112 0 23 6 0 6 6 0 8 0 unpcb 144 721 0 714 11 5 6 6 0 8 5 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 736 101 0 100 4 0 4 4 0 8 3 arp 136 18 0 4 1 0 1 1 0 8 0 inpcb 328 386 0 385 12 3 9 12 0 8 8 nd6 152 25 0 6 1 0 1 1 0 8 0 kcovpl 48 20 0 13 1 0 1 1 0 8 0 ppxss 1192 1 0 1 1 1 0 1 0 8 0 pffrag 232 3 0 0 1 0 1 1 0 482 0 pffrnode 88 3 0 0 1 0 1 1 0 8 0 pffrent 40 4 0 1 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 1 0 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfqueue 320 3 0 2 2 1 1 1 0 8 0 pfstitem 24 33 0 3 1 0 1 1 0 8 0 pfstkey 128 33 0 3 2 0 2 2 0 8 0 pfstate 448 33 0 3 4 0 4 4 0 8 0 pfrule 1360 26 0 21 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 454 0 88 29 0 29 29 0 8 2 art_table 40 455 0 88 5 0 5 5 0 8 0 art_node 32 112 0 31 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 3 2 1 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 72 13 0 0 1 0 1 1 0 8 0 shmpl 112 86 0 1 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1988 0 503 93 0 93 93 0 8 0 ffsino 296 1988 0 503 115 0 115 115 0 8 0 nchpl 144 2510 0 800 64 0 64 64 0 8 0 vnodes 216 2432 0 0 136 0 136 136 0 8 0 namei 1024 9159 0 9159 2 1 1 1 0 8 1 percpumem 16 55 0 6 1 0 1 1 0 8 0 kstatmem 264 35 0 12 2 0 2 2 0 8 0 scxspl 216 8993 0 8993 10 2 8 8 1 8 8 plimitpl 152 62 0 48 1 0 1 1 0 8 0 sigapl 424 715 0 660 8 0 8 8 0 8 0 knotepl 120 125 0 0 4 0 4 4 0 8 0 kqueuepl 224 107 0 103 2 1 1 2 0 8 0 pipepl 344 316 0 289 12 6 6 9 0 8 3 fdescpl 528 678 0 661 3 0 3 3 0 8 0 filepl 160 4691 0 4528 27 10 17 20 0 8 8 lockfpl 104 137 0 137 1 0 1 1 0 8 1 lockfspl 48 45 0 45 1 0 1 1 0 8 1 sessionpl 144 53 0 48 1 0 1 1 0 8 0 pgrppl 48 75 0 62 1 0 1 1 0 8 0 ucredpl 104 463 0 455 1 0 1 1 0 8 0 zombiepl 144 663 0 660 1 0 1 1 0 8 0 processpl 1232 715 0 660 6 0 6 6 0 8 0 procpl 664 1112 0 1054 8 0 8 8 0 8 1 sosppl 176 3 0 3 1 0 1 1 0 8 1 sockpl 752 1146 0 1138 34 24 10 17 0 8 8 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 113 0 0 15 0 15 15 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mextrefs 64 19 0 0 1 0 1 1 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 199 0 0 12 0 12 12 0 8 0 bufpl 272 2778 0 106 179 0 179 179 0 8 0 anonpl 32 3818 0 0 31 0 31 31 0 222 0 amapchunkpl 152 15560 0 15271 23 1 22 23 0 158 4 amappl16 200 2118 0 2103 6 3 3 5 0 8 0 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 437 0 436 1 0 1 1 0 8 0 amappl13 176 125 0 122 1 0 1 1 0 8 0 amappl12 168 948 0 931 2 0 2 2 0 8 0 amappl11 160 52 0 52 3 2 1 1 0 8 1 amappl10 152 63 0 59 1 0 1 1 0 8 0 amappl9 144 291 0 291 1 1 0 1 0 8 0 amappl8 136 100 0 98 1 0 1 1 0 8 0 amappl7 128 150 0 145 1 0 1 1 0 8 0 amappl6 120 157 0 156 1 0 1 1 0 8 0 amappl5 112 105 0 102 1 0 1 1 0 8 0 amappl4 104 299 0 290 1 0 1 1 0 8 0 amappl3 96 3033 0 2967 4 0 4 4 0 8 0 amappl2 88 557 0 538 2 0 2 2 0 8 0 amappl1 80 11508 0 11340 16 3 13 16 0 8 2 amappl 88 4493 0 4394 5 0 5 5 0 92 0 uvmvnodes 80 102 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 88 0 1 2 0 2 2 0 8 0 uaddrrnd 24 678 0 661 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 678 0 661 1 0 1 1 0 8 0 vmmpekpl 168 8436 0 8394 3 0 3 3 0 8 0 vmmpepl 168 52057 0 51262 89 1 88 88 0 357 31 vmsppl 488 677 0 659 5 1 4 5 0 8 0 rwobjpl 80 17638 0 17064 25 1 24 25 0 8 1 pdppl 4096 1365 0 1318 103 52 51 89 0 8 4 pvpl 32 11448 0 0 93 0 93 93 0 265 0 pmappl 256 677 0 659 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 120 460 0 58 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x19: leave x86_ipi_db(ffffffff852eeff0) 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 Xsyscall() at Xsyscall+0x111 end of kernel end trace frame: 0x7d07bc9e6f90, count: 11 ddb{0}> trace x86_ipi_db(ffffffff852eeff0) 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 Xsyscall() at Xsyscall+0x111 end of kernel end trace frame: 0x7d07bc9e6f90, count: -4 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(ffffffff84637165) at panic+0x270 sys/kern/subr_prf.c:198 kasan_memcpy(ffff8000018ca0e0,ffff80003bbbb190,14) at kasan_memcpy+0x1ec sysctl_sysvipc(ffff80003bbbb808,1,200000000040,ffff80003bbbb7e0) at sysctl_sysvipc+0x63a sys/kern/kern_sysctl.c:2771 kern_sysctl_dirs(33,ffff80003bbbb808,1,200000000040,ffff80003bbbb7e0,0,1,1ffff00007777678) at kern_sysctl_dirs+0x30f sys/kern/kern_sysctl.c:429 kern_sysctl(ffff80003bbbb804,2,200000000040,ffff80003bbbb7e0,0,0,ffff80003bbbba50) at kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 sys_sysctl(ffff8000299422b0,ffff80003bbbba50,ffff80003bbbb9c0) at sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 syscall(ffff80003bbbba50) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003bbbba50) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf3551826da0, count: 6 ddb{1}> trace db_enter() at db_enter+0x17 sys/arch/amd64/amd64/db_interface.c:457 panic(ffffffff84637165) at panic+0x270 sys/kern/subr_prf.c:198 kasan_memcpy(ffff8000018ca0e0,ffff80003bbbb190,14) at kasan_memcpy+0x1ec sysctl_sysvipc(ffff80003bbbb808,1,200000000040,ffff80003bbbb7e0) at sysctl_sysvipc+0x63a sys/kern/kern_sysctl.c:2771 kern_sysctl_dirs(33,ffff80003bbbb808,1,200000000040,ffff80003bbbb7e0,0,1,1ffff00007777678) at kern_sysctl_dirs+0x30f sys/kern/kern_sysctl.c:429 kern_sysctl(ffff80003bbbb804,2,200000000040,ffff80003bbbb7e0,0,0,ffff80003bbbba50) at kern_sysctl+0x1ce sys/kern/kern_sysctl.c:529 sys_sysctl(ffff8000299422b0,ffff80003bbbba50,ffff80003bbbb9c0) at sys_sysctl+0x54f sys/kern/kern_sysctl.c:309 syscall(ffff80003bbbba50) at syscall+0x1089 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003bbbba50) at syscall+0x1089 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf3551826da0, count: -9 ddb{1}>