uvm_fault(0xfffffd8068b6de70, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd8068b6de70, 0x0, 0, 1) -> e ifa_update_broadaddr(ffff800000af9000,ffff800000b70200,ffff800021f0f780) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 end trace frame: 0xffff800021f0f630, count: 0 ddb{0}> trace ifa_update_broadaddr(ffff800000af9000,ffff800000b70200,ffff800021f0f780) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800021f0f770,ffff800000af9000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd8064676e30,80206913,ffff800021f0f770,ffff800020e38398) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd8066dee018,80206913,ffff800021f0f770,ffff800020e38398) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e38398,ffff800021f0f888,ffff800021f0f8d0) at sys_ioctl+0x4a5 syscall(ffff800021f0f950) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f0f950) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x952e55c3f50, count: -7 ddb{0}> show registers rdi 0xffffffff810a5ffb ifa_update_broadaddr+0x1b rsi 0xd4 rbp 0xffff800021f0f590 rbx 0x10 rdx 0xd5 rcx 0xffff800023109000 rax 0xffff800023109000 r8 0xffffffff81842e27 in_ioctl+0x387 r9 0x7 r10 0x3 r11 0x57285a1a2a7bab1f r12 0xffff800021f0f780 r13 0xffff800021f0f770 r14 0xffff800021f0f780 r15 0 rip 0xffffffff810a5fff ifa_update_broadaddr+0x1f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021f0f550 ss 0x10 ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{0}> show proc PROC (syz-executor.1) pid=267752 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e374f8,0xffffffff82920240 process=0xffff800020eb8fa0 user=0xffff800021f0a000, vmspace=0xfffffd8068b6de70 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 8760 344163 61118 0 2 0 syz-executor.1 * 8760 267752 61118 0 7 0x4000000 syz-executor.1 49401 206341 61483 60928 7 0x10 syz-executor.0 49401 314859 61483 60928 3 0x4000090 fsleep syz-executor.0 49401 374479 61483 60928 2 0x4000010 syz-executor.0 19490 263993 0 0 3 0x14200 acct acct 74055 355355 0 0 3 0x14200 bored sosplice 61118 96455 87727 0 3 0x82 nanosleep syz-executor.1 61483 289748 87727 0 3 0x82 nanosleep syz-executor.0 87727 474808 93841 0 3 0x82 thrsleep syz-fuzzer 87727 374686 93841 0 3 0x4000082 thrsleep syz-fuzzer 87727 151655 93841 0 3 0x4000082 thrsleep syz-fuzzer 87727 366420 93841 0 3 0x4000082 thrsleep syz-fuzzer 87727 90945 93841 0 3 0x4000082 thrsleep syz-fuzzer 87727 52158 93841 0 3 0x4000082 thrsleep syz-fuzzer 87727 451025 93841 0 3 0x4000082 kqread syz-fuzzer 87727 133923 93841 0 3 0x4000082 thrsleep syz-fuzzer 87727 465874 93841 0 3 0x4000082 thrsleep syz-fuzzer 87727 390680 93841 0 3 0x4000082 thrsleep syz-fuzzer 93841 269173 54695 0 3 0x10008a pause ksh 54695 509749 52889 0 3 0x92 select sshd 18145 458646 1 0 3 0x100083 ttyin getty 52889 321421 1 0 3 0x80 select sshd 93910 388917 86533 74 3 0x100092 bpf pflogd 86533 350223 1 0 3 0x80 netio pflogd 30909 214370 98759 73 3 0x100090 kqread syslogd 98759 182236 1 0 3 0x100082 netio syslogd 37477 66830 1 77 3 0x100090 poll dhclient 23948 388091 1 0 3 0x80 poll dhclient 54739 92447 0 0 3 0x14200 bored smr 39508 335868 0 0 2 0x14200 zerothread 2508 107595 0 0 3 0x14200 aiodoned aiodoned 96331 92718 0 0 3 0x14200 syncer update 49790 207381 0 0 3 0x14200 cleaner cleaner 92739 228082 0 0 3 0x14200 reaper reaper 29442 502237 0 0 3 0x14200 pgdaemon pagedaemon 26063 406885 0 0 3 0x14200 bored crynlk 89011 484846 0 0 3 0x14200 bored crypto 34369 72683 0 0 3 0x40014200 acpi0 acpi0 18817 1384 0 0 3 0x40014200 idle1 20883 33644 0 0 3 0x14200 bored softnet 37248 107850 0 0 3 0x14200 bored systqmp 86691 199424 0 0 3 0x14200 bored systq 32203 342264 0 0 3 0x40014200 bored softclock 4419 142290 0 0 3 0x40014200 idle0 1 484961 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 8760 (syz-executor.1) thread 0xffff800020e38398 (267752) exclusive rwlock netlock r = 0 (0xffffffff826ebbd8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 in_ioctl+0x1f5 #2 ifioctl+0xe70 sys/net/if.c:2282 #3 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #4 sys_ioctl+0x4a5 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828c8768) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 soo_ioctl+0x26a sys/kern/sys_socket.c:138 #2 sys_ioctl+0x4a5 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #4 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9512 6413K 7055K 78643K 12082 0 pcb 13 8K 8K 78643K 58 0 rtable 126 8K 8K 78643K 336 0 ifaddr 80 16K 17K 78643K 144 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 59 0 ioctlops 0 0K 4K 78643K 1520 0 iov 0 0K 16K 78643K 71 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1601 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 5 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 114 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 786 0 sigio 0 0K 0K 78643K 16 0 proc 62 63K 83K 78643K 451 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 37 0 in_multi 59 3K 3K 78643K 140 0 ether_multi 1 0K 0K 78643K 7 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 218 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 128 71K 71K 78643K 3342 0 UVM aobj 13 2K 2K 78643K 15 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 24 0 NDP 11 0K 0K 78643K 29 0 temp 129 3868K 3932K 78643K 13678 0 kqueue 3 4K 8K 78643K 11 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 1 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 27 0 25 1 0 1 1 0 8 0 rtentry 112 67 0 22 2 0 2 2 0 8 0 unpcb 120 1755 0 1744 2 1 1 2 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 52 0 52 3 3 0 1 0 8 0 tcpcb 544 669 0 663 1 0 1 1 0 8 0 inpcb 296 959 0 950 2 0 2 2 0 8 1 nd6 48 24 0 17 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 0 1 1 0 8 1 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pffrag 232 2 0 2 1 0 1 1 0 482 1 pffrnode 88 2 0 2 1 0 1 1 0 8 1 pffrent 40 92 0 92 2 1 1 1 0 8 1 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 11 0 3 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 264 1 0 1 1 1 0 1 0 8 0 pfstitem 24 21 0 10 1 0 1 1 0 8 0 pfstkey 112 21 0 10 1 0 1 1 0 8 0 pfstate 328 21 0 10 2 0 2 2 0 8 0 pfrule 1360 27 0 18 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 208 0 4 13 0 13 13 0 8 0 art_table 32 210 0 4 2 0 2 2 0 8 0 art_node 16 66 0 25 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 106 0 96 1 0 1 1 0 8 0 shmpl 112 12 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2334 0 931 89 1 88 89 0 8 0 ffsino 272 2334 0 931 94 0 94 94 0 8 0 nchpl 144 3605 0 1995 60 0 60 60 0 8 0 uvmvnodes 72 2687 0 0 49 0 49 49 0 8 0 vnodes 208 2687 0 0 142 0 142 142 0 8 0 namei 1024 9105 0 9105 1 0 1 1 0 8 1 percpumem 16 40 0 8 1 0 1 1 0 8 0 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 560 8 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 6 0 0 1 0 1 1 0 8 0 scxspl 192 10078 0 10078 8 7 1 7 0 8 1 plimitpl 152 33 0 25 1 0 1 1 0 8 0 sigapl 424 1003 0 969 4 0 4 4 0 8 0 futexpl 56 10318 0 10317 1 0 1 1 0 8 0 knotepl 112 70 0 51 1 0 1 1 0 8 0 kqueuepl 144 48 0 46 1 0 1 1 0 8 0 pipepl 304 118 0 108 2 0 2 2 0 8 1 fdescpl 496 986 0 969 3 0 3 3 0 8 0 filepl 152 5679 0 5577 5 0 5 5 0 8 1 lockfpl 104 79 0 78 1 0 1 1 0 8 0 lockfspl 48 27 0 26 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 23 0 12 1 0 1 1 0 8 0 ucredpl 96 853 0 843 1 0 1 1 0 8 0 zombiepl 144 969 0 969 1 0 1 1 0 8 1 processpl 992 1003 0 969 5 0 5 5 0 8 0 procpl 624 2551 0 2505 4 0 4 4 0 8 0 srpgc 64 2 0 2 1 0 1 1 0 8 1 sosppl 128 13 0 13 2 1 1 1 0 8 1 sockpl 400 2749 0 2727 5 1 4 5 0 8 1 mcl64k 65536 15 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 16 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 190 0 0 23 0 23 23 0 8 0 mtagpl 96 187 0 0 5 0 5 5 0 8 0 mbufpl 256 669 0 0 42 0 42 42 0 8 0 bufpl 280 4330 0 133 300 0 300 300 0 8 0 anonpl 16 90956 0 74596 82 1 81 81 0 124 15 amapchunkpl 152 5090 0 4949 12 5 7 11 0 158 0 amappl16 192 4438 0 3551 56 4 52 56 0 8 7 amappl15 184 2 0 2 2 2 0 1 0 8 0 amappl14 176 26 0 20 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 23 0 19 2 1 1 1 0 8 0 amappl11 152 809 0 790 1 0 1 1 0 8 0 amappl10 144 21 0 14 1 0 1 1 0 8 0 amappl9 136 391 0 389 1 0 1 1 0 8 0 amappl8 128 345 0 315 1 0 1 1 0 8 0 amappl7 120 117 0 106 1 0 1 1 0 8 0 amappl6 112 779 0 768 1 0 1 1 0 8 0 amappl5 104 885 0 868 1 0 1 1 0 8 0 amappl4 96 495 0 466 1 0 1 1 0 8 0 amappl3 88 119 0 112 1 0 1 1 0 8 0 amappl2 80 6955 0 6874 2 0 2 2 0 8 0 amappl1 72 29744 0 29292 23 13 10 18 0 8 0 amappl 80 2813 0 2764 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 14 0 2 1 0 1 1 0 8 0 uaddrrnd 24 994 0 971 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 994 0 971 1 0 1 1 0 8 0 vmmpekpl 168 11099 0 11060 2 0 2 2 0 8 0 vmmpepl 168 124722 0 122548 117 10 107 113 0 357 12 vmsppl 368 993 0 971 3 0 3 3 0 8 0 pdppl 4096 1995 0 1948 7 1 6 7 0 8 0 pvpl 32 285048 0 265536 192 0 192 192 0 265 34 pmappl 232 993 0 971 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 297 0 6 9 0 9 9 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace ifa_update_broadaddr(ffff800000af9000,ffff800000b70200,ffff800021f0f780) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800021f0f770,ffff800000af9000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd8064676e30,80206913,ffff800021f0f770,ffff800020e38398) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd8066dee018,80206913,ffff800021f0f770,ffff800020e38398) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e38398,ffff800021f0f888,ffff800021f0f8d0) at sys_ioctl+0x4a5 syscall(ffff800021f0f950) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f0f950) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x952e55c3f50, count: -7 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d70ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 end of kernel end trace frame: 0x7f7ffffc10d0, count: -3