kernel: protection fault trap, code=0 Stopped at malloc+0x855: movq 0x8(%rbx),%r14 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> show kasan No such command ddb> trace malloc(10,5,a) at malloc+0x855 sys/kern/kern_malloc.c:293 rtrequest(1,ffff8000314beb18,1,ffff8000314bebb8,0) at rtrequest+0x9e8 rt_setgate sys/net/route.c:-1 [inline] rtrequest(1,ffff8000314beb18,1,ffff8000314bebb8,0) at rtrequest+0x9e8 sys/net/route.c:1064 rt_ifa_add(ffff80000159d200,440004,ffff80000159d278,0) at rt_ifa_add+0x22e sys/net/route.c:1284 in_ifinit(ffff8000015ed800,ffff80000159d200,ffff8000314bee30,1) at in_ifinit+0x5af sys/netinet/in.c:-1 in_ioctl_change_ifaddr(8040691a,ffff8000314bee20,ffff8000015ed800) at in_ioctl_change_ifaddr+0x930 sys/netinet/in.c:523 ifioctl(ffff800010fdad10,8040691a,ffff8000314bee20,ffff80002a785a08) at ifioctl+0x16c4 pru_control sys/sys/protosw.h:353 [inline] ifioctl(ffff800010fdad10,8040691a,ffff8000314bee20,ffff80002a785a08) at ifioctl+0x16c4 sys/net/if.c:2539 sys_ioctl(ffff80002a785a08,ffff8000314beff0,ffff8000314bef40) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff8000314beff0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000314beff0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70a32cb67fb0, count: -9 ddb> show registers rdi 0x962b9a0586d216cd rsi 0x6ae04b3e rbp 0xffff8000314be9e0 rbx 0x962b9a05ec325df3 rdx 0 rcx 0x4 rax 0xffff80002a785a08 r8 0x88 r9 0x20 r10 0x61461bd32068336d r11 0x2e36cf6d88afe56f r12 0x6ae04b3e r13 0xffffffff83aa13e0 kmemstats+0x140 r14 0xa30c333 __kernel_phys_end+0x670c333 r15 0x962b9a0586d216cd rip 0xffffffff81e03655 malloc+0x855 cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff8000314be920 ss 0x10 malloc+0x855: movq 0x8(%rbx),%r14 ddb> show proc PROC (ifconfig) tid=75476 pid=27561 tcnt=1 stat=onproc flags process=2 proc=0 runpri=67, usrpri=67, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7847e0,0xffff80002a785780 process=0xffff80002a77d230 user=0xffff8000314ba000, vmspace=0xfffffa000d5cf5d8 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 92541 402877 56048 0 2 0x40 0 syz-executor *27561 75476 85322 0 7 0x2 0 ifconfig 3750 214232 17331 0 2 0x40 0 syz-executor 85322 218584 41001 0 3 0x100002 0x88 sigsusp sh 17119 69300 59494 0 2 0 0 syz-executor 17119 454409 59494 0 3 0 0x4000080 kqpoll syz-executor 14983 70490 20656 0 2 0 0 syz-executor 14983 119622 20656 0 3 0 0x4000080 fsleep syz-executor 92968 314139 42978 -1 2 0x10 0 syz-executor 92968 430916 42978 -1 3 0x10 0x4000080 fsleep syz-executor 56048 513589 30084 0 3 0x82 0 ppwait syz-executor 41001 157572 30084 0 3 0x2 0x80 wait syz-executor 4197 158296 34402 0 2 0 0xc80 syz-executor 4197 265015 34402 0 3 0 0x4000080 dtread syz-executor 4197 269420 34402 0 3 0 0x4000080 fsleep syz-executor 17331 237688 30084 0 3 0x82 0 ppwait syz-executor 20656 449220 30084 0 2 0x2 0xc80 syz-executor 42978 393507 30084 0 2 0x2 0xc80 syz-executor 34402 127800 30084 0 3 0x2 0x80 nanoslp syz-executor 59494 93006 30084 0 3 0x2 0x80 nanoslp syz-executor 30084 189388 91170 0 3 0x2 0x80 wait syz-executor 91170 147342 7502 0 3 0x100002 0x88 sigsusp ksh 7502 257137 5333 0 3 0x10 0x88 kqread sshd-session 5333 305306 46633 0 3 0x12 0x80 kqread sshd-session 81510 302392 1 0 3 0x100003 0x80 ttyin getty 46633 430398 1 0 3 0 0x88 kqread sshd 17787 54944 45303 73 3 0x1100010 0x80 kqread syslogd 45303 221138 1 0 3 0x100002 0x80 sbwait syslogd-parent 38332 449225 1 0 3 0x100000 0x80 kqread resolvd 39036 77004 91285 77 3 0x100012 0x80 kqread dhcpleased 50527 222862 91285 77 3 0x100012 0x80 kqread dhcpleased 91285 423781 1 0 3 0 0x80 kqread dhcpleased 3203 281853 0 0 3 0x14000 0x200 bored smr 59590 180922 0 0 2 0x14000 0x200 zerothread 42682 322131 0 0 3 0x14000 0x200 aiodoned aiodoned 39826 399881 0 0 3 0x14000 0x200 syncer update 25366 443967 0 0 3 0x14000 0x200 cleaner cleaner 33569 364268 0 0 3 0x14000 0x200 reaper reaper 24375 186755 0 0 3 0x14000 0x200 pgdaemon pagedaemon 30748 241430 0 0 3 0x14000 0x200 bored viomb 38840 186282 0 0 3 0x14000 0x40000200 acpi0 acpi0 41657 85668 0 0 3 0x14000 0x200 bored softnet0 93113 198688 0 0 3 0x14000 0x200 smrbar systqmp 74783 408724 0 0 3 0x14000 0x200 bored systq 28173 355468 0 0 3 0x14000 0x40000200 tmoslp softclock 37378 139719 0 0 3 0x14000 0x40000200 idle0 1 102315 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11048 12170K 12305K 166960K 12228 0 pcb 17 13K 14K 166960K 76 0 rtable 194 7K 8K 166960K 606 0 pf 30 12K 14K 166960K 59 0 ifaddr 34 5K 7K 166960K 79 0 ifgroup 50 2K 2K 166960K 92 0 sysctl 1 1K 9K 166960K 7 0 counters 33 17K 18K 166960K 46 0 ioctlops 0 0K 4K 166960K 96 0 iov 0 0K 12K 166960K 35 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1307 82K 82K 166960K 1515 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 27 1K 2K 166960K 40 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 18 65K 85K 166960K 335 0 sigio 0 0K 0K 166960K 2 0 proc 66 67K 108K 166960K 756 0 subproc 72 4K 4K 166960K 162 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 8 0 in_multi 68 4K 6K 166960K 180 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 492 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 202 159K 171K 166960K 4150 0 UVM aobj 5 2K 2K 166960K 5 0 pinsyscall 39 78K 90K 166960K 1629 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 13 0K 2K 166960K 52 0 temp 34 9114K 9134K 166960K 4406 0 kqueue 13 20K 24K 166960K 38 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 54 0 51 1 0 1 1 0 8 0 rtentry 136 193 0 112 4 0 4 4 0 8 0 unpcb 144 199 0 182 6 0 6 6 0 8 5 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 736 31 0 24 1 0 1 1 0 8 0 arp 96 33 0 20 1 0 1 1 0 8 0 ipq 40 3 0 0 1 0 1 1 0 8 0 ipqe 40 5 0 0 1 0 1 1 0 8 0 inpcb 328 186 0 173 4 0 4 4 0 8 2 nd6 112 46 0 30 1 0 1 1 0 8 0 pkpcb 40 66 0 66 1 0 1 1 0 8 1 kcovpl 48 18 0 10 1 0 1 1 0 8 0 ppxss 1072 3 0 3 1 0 1 1 0 8 1 pfsrclim 320 1 0 0 1 0 1 1 0 8 0 pfrule 1360 5 0 5 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 770 0 399 32 0 32 32 0 8 5 art_table 40 771 0 399 6 0 6 6 0 8 1 art_node 32 191 0 108 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semapl 72 38 0 13 1 0 1 1 0 8 0 shmpl 120 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1709 0 217 94 0 94 94 0 8 0 ffsino 256 1709 0 217 94 0 94 94 0 8 0 nchpl 144 2005 0 267 65 0 65 65 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 vnodes 216 1921 0 0 107 0 107 107 0 8 0 namei 1024 7503 0 7503 3 0 3 3 0 8 3 kstatmem 264 45 0 22 2 0 2 2 0 8 0 scxspl 216 7201 0 7201 8 0 8 8 1 8 8 plimitpl 152 90 0 74 1 0 1 1 0 8 0 sigapl 424 599 0 556 6 0 6 6 0 8 0 knotepl 120 7548 0 7501 17 6 11 17 0 8 8 kqueuepl 184 50 0 39 1 0 1 1 0 8 0 pipepl 304 223 0 195 5 0 5 5 0 8 2 fdescpl 448 586 0 556 4 0 4 4 0 8 0 filepl 120 2330 0 2114 14 0 14 14 0 8 6 lockfpl 104 23 0 21 1 0 1 1 0 8 0 lockfspl 48 10 0 8 1 0 1 1 0 8 0 sessionpl 144 37 0 29 1 0 1 1 0 8 0 pgrppl 48 55 0 39 1 0 1 1 0 8 0 ucredpl 104 141 0 129 1 0 1 1 0 8 0 zombiepl 144 557 0 556 1 0 1 1 0 8 0 processpl 1160 599 0 556 4 0 4 4 0 8 0 procpl 664 748 0 700 6 0 6 6 0 8 1 sockpl 552 511 0 478 19 9 10 19 0 8 7 mcl64k 65536 38 0 36 1 0 1 1 0 8 0 mcl8k 8192 13 0 13 1 0 1 1 0 8 1 mcl4k 4096 2636 0 2579 14 0 14 14 0 8 5 mcl2k 2048 314 0 314 1 0 1 1 0 8 1 mextrefs 64 81 0 81 1 0 1 1 0 8 1 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 5690 0 5582 13 0 13 13 0 8 2 bufpl 272 2467 0 87 159 0 159 159 0 8 0 anonpl 24 104926 0 101976 22 0 22 22 0 187 2 amapchunkpl 152 11705 0 11313 22 0 22 22 0 158 4 amappl16 200 1780 0 1767 5 0 5 5 0 8 4 amappl15 192 8 0 8 1 0 1 1 0 8 1 amappl14 184 493 0 491 1 0 1 1 0 8 0 amappl13 176 129 0 119 1 0 1 1 0 8 0 amappl12 168 844 0 818 2 0 2 2 0 8 0 amappl11 160 8 0 8 1 0 1 1 0 8 1 amappl10 152 59 0 51 1 0 1 1 0 8 0 amappl9 144 280 0 280 1 0 1 1 0 8 1 amappl8 136 121 0 119 1 0 1 1 0 8 0 amappl7 128 151 0 141 1 0 1 1 0 8 0 amappl6 120 162 0 160 1 0 1 1 0 8 0 amappl5 112 167 0 159 1 0 1 1 0 8 0 amappl4 104 279 0 264 1 0 1 1 0 8 0 amappl3 96 2266 0 2169 3 0 3 3 0 8 0 amappl2 88 463 0 413 2 0 2 2 0 8 0 amappl1 80 11195 0 10640 13 0 13 13 0 8 1 amappl 88 3345 0 3207 4 0 4 4 0 92 0 uvmvnodes 80 100 0 0 3 0 3 3 0 8 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 586 0 556 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 586 0 556 1 0 1 1 0 8 0 vmmpekpl 168 6516 0 6473 3 0 3 3 0 8 0 vmmpepl 168 46292 0 44578 79 0 79 79 0 357 2 vmsppl 368 585 0 556 4 0 4 4 0 8 1 rwobjpl 40 16400 0 15478 11 0 11 11 0 8 1 pdppl 4096 1178 0 1112 94 24 70 76 0 8 4 pvpl 32 259716 0 251669 69 0 69 69 0 265 0 pmappl 216 585 0 556 2 0 2 2 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 524 0 24 15 0 15 15 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace malloc(10,5,a) at malloc+0x855 sys/kern/kern_malloc.c:293 rtrequest(1,ffff8000314beb18,1,ffff8000314bebb8,0) at rtrequest+0x9e8 rt_setgate sys/net/route.c:-1 [inline] rtrequest(1,ffff8000314beb18,1,ffff8000314bebb8,0) at rtrequest+0x9e8 sys/net/route.c:1064 rt_ifa_add(ffff80000159d200,440004,ffff80000159d278,0) at rt_ifa_add+0x22e sys/net/route.c:1284 in_ifinit(ffff8000015ed800,ffff80000159d200,ffff8000314bee30,1) at in_ifinit+0x5af sys/netinet/in.c:-1 in_ioctl_change_ifaddr(8040691a,ffff8000314bee20,ffff8000015ed800) at in_ioctl_change_ifaddr+0x930 sys/netinet/in.c:523 ifioctl(ffff800010fdad10,8040691a,ffff8000314bee20,ffff80002a785a08) at ifioctl+0x16c4 pru_control sys/sys/protosw.h:353 [inline] ifioctl(ffff800010fdad10,8040691a,ffff8000314bee20,ffff80002a785a08) at ifioctl+0x16c4 sys/net/if.c:2539 sys_ioctl(ffff80002a785a08,ffff8000314beff0,ffff8000314bef40) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff8000314beff0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000314beff0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70a32cb67fb0, count: -9 ddb> machine ddbcpu 1 No such command ddb> trace malloc(10,5,a) at malloc+0x855 sys/kern/kern_malloc.c:293 rtrequest(1,ffff8000314beb18,1,ffff8000314bebb8,0) at rtrequest+0x9e8 rt_setgate sys/net/route.c:-1 [inline] rtrequest(1,ffff8000314beb18,1,ffff8000314bebb8,0) at rtrequest+0x9e8 sys/net/route.c:1064 rt_ifa_add(ffff80000159d200,440004,ffff80000159d278,0) at rt_ifa_add+0x22e sys/net/route.c:1284 in_ifinit(ffff8000015ed800,ffff80000159d200,ffff8000314bee30,1) at in_ifinit+0x5af sys/netinet/in.c:-1 in_ioctl_change_ifaddr(8040691a,ffff8000314bee20,ffff8000015ed800) at in_ioctl_change_ifaddr+0x930 sys/netinet/in.c:523 ifioctl(ffff800010fdad10,8040691a,ffff8000314bee20,ffff80002a785a08) at ifioctl+0x16c4 pru_control sys/sys/protosw.h:353 [inline] ifioctl(ffff800010fdad10,8040691a,ffff8000314bee20,ffff80002a785a08) at ifioctl+0x16c4 sys/net/if.c:2539 sys_ioctl(ffff80002a785a08,ffff8000314beff0,ffff8000314bef40) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff8000314beff0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000314beff0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70a32cb67fb0, count: -9