uvm_fault(0xfffffd807efff000, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xfffffd807efff000, 0x0, 0, 1) -> e ifa_update_broadaddr(ffff800000ac5000,ffff800000b3d000,ffff8000230fc3d0) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 end trace frame: 0xffff8000230fc280, count: 0 ddb{1}> trace ifa_update_broadaddr(ffff800000ac5000,ffff800000b3d000,ffff8000230fc3d0) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff8000230fc3c0,ffff800000ac5000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd8067068e70,80206913,ffff8000230fc3c0,ffff800020e0a878) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd8066a4e908,80206913,ffff8000230fc3c0,ffff800020e0a878) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e0a878,ffff8000230fc4d8,ffff8000230fc520) at sys_ioctl+0x4a5 syscall(ffff8000230fc5a0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230fc5a0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3197ab82e0, count: -7 ddb{1}> show registers rdi 0xffffffff8232f83b ifa_update_broadaddr+0x1b rsi 0xe8 rbp 0xffff8000230fc1e0 rbx 0x10 rdx 0xe9 rcx 0xffff800020ed9000 rax 0xffff800020ed9000 r8 0xffffffff8176f527 in_ioctl+0x387 r9 0x7 r10 0x3 r11 0x69ba31a2966cfd5a r12 0xffff8000230fc3d0 r13 0 r14 0xffff8000230fc3d0 r15 0 rip 0xffffffff8232f83f ifa_update_broadaddr+0x1f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000230fc1a0 ss 0x10 ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> show proc PROC (syz-executor.0) pid=270956 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e09288,0xffffffff828c1a80 process=0xffff8000230ea418 user=0xffff8000230f7000, vmspace=0xfffffd807efff000 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 9499 507777 48 0 2 0 syz-executor.0 * 9499 270956 48 0 7 0x4000000 syz-executor.0 15341 220309 0 0 3 0x14200 acct acct 23424 95212 0 0 3 0x14280 nfsidl nfsio 14299 445009 0 0 3 0x14280 nfsidl nfsio 16622 14978 0 0 3 0x14280 nfsidl nfsio 51757 298101 0 0 3 0x14280 nfsidl nfsio 75916 18242 0 0 3 0x14280 nfsidl nfsio 98199 494310 0 0 3 0x14280 nfsidl nfsio 23139 240912 0 0 3 0x14280 nfsidl nfsio 44157 320428 0 0 3 0x14280 nfsidl nfsio 83205 114385 0 0 3 0x14280 nfsidl nfsio 5339 117683 0 0 3 0x14280 nfsidl nfsio 24345 156088 0 0 3 0x14280 nfsidl nfsio 91308 50639 0 0 3 0x14280 nfsidl nfsio 64284 446677 0 0 3 0x14280 nfsidl nfsio 3457 22270 0 0 3 0x14280 nfsidl nfsio 87775 517082 0 0 3 0x14280 nfsidl nfsio 78473 181164 0 0 3 0x14280 nfsidl nfsio 36337 515552 0 0 3 0x14280 nfsidl nfsio 94776 273509 0 0 3 0x14280 nfsidl nfsio 69999 418104 0 0 3 0x14280 nfsidl nfsio 30121 295571 0 0 3 0x14280 nfsidl nfsio 6702 192292 0 0 3 0x14200 bored sosplice 57921 429357 15470 0 3 0x82 piperd syz-executor.1 48 196005 15470 0 3 0x82 nanosleep syz-executor.0 15470 131021 13037 0 3 0x82 thrsleep syz-fuzzer 15470 302045 13037 0 3 0x4000082 nanosleep syz-fuzzer 15470 417987 13037 0 7 0x4000002 syz-fuzzer 15470 77663 13037 0 3 0x4000082 thrsleep syz-fuzzer 15470 136893 13037 0 3 0x4000082 thrsleep syz-fuzzer 15470 65173 13037 0 3 0x4000082 thrsleep syz-fuzzer 15470 239321 13037 0 3 0x4000082 thrsleep syz-fuzzer 15470 149094 13037 0 3 0x4000082 thrsleep syz-fuzzer 15470 204633 13037 0 3 0x4000082 thrsleep syz-fuzzer 15470 127020 13037 0 3 0x4000082 kqread syz-fuzzer 13037 76154 91656 0 3 0x10008a pause ksh 91656 522413 76603 0 3 0x92 select sshd 30925 323163 1 0 3 0x100083 ttyin getty 76603 316370 1 0 3 0x80 select sshd 10735 67720 39758 74 3 0x100092 bpf pflogd 39758 36685 1 0 3 0x80 netio pflogd 71536 368560 92508 73 3 0x100090 kqread syslogd 92508 509131 1 0 3 0x100082 netio syslogd 99828 147855 1 77 3 0x100090 poll dhclient 46947 28154 1 0 3 0x80 poll dhclient 52100 227244 0 0 3 0x14200 bored smr 24041 485696 0 0 2 0x14200 zerothread 46132 385252 0 0 3 0x14200 aiodoned aiodoned 88664 381436 0 0 3 0x14200 syncer update 20387 210843 0 0 3 0x14200 cleaner cleaner 97036 410884 0 0 3 0x14200 reaper reaper 86987 366251 0 0 3 0x14200 pgdaemon pagedaemon 37226 319143 0 0 3 0x14200 bored crynlk 77694 512735 0 0 3 0x14200 bored crypto 21060 29795 0 0 3 0x40014200 acpi0 acpi0 42127 506811 0 0 3 0x40014200 idle1 56977 298401 0 0 3 0x14200 bored softnet 78485 517875 0 0 3 0x14200 bored systqmp 96272 84823 0 0 3 0x14200 bored systq 79776 147651 0 0 3 0x40014200 bored softclock 97701 320406 0 0 3 0x40014200 idle0 1 338567 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 9499 (syz-executor.0) thread 0xffff800020e0a878 (270956) exclusive rwlock netlock r = 0 (0xffffffff827aef48) #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 (0xffffffff82922438) #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9531 6548K 6677K 78643K 11623 0 pcb 13 8K 8K 78643K 135 0 rtable 124 8K 9K 78643K 616 0 ifaddr 92 19K 19K 78643K 262 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 81 0 ioctlops 0 0K 4K 78643K 1579 0 iov 0 0K 16K 78643K 68 0 mount 1 1K 1K 78643K 1 0 vnodes 1215 76K 77K 78643K 1533 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 168 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 910 0 sigio 0 0K 0K 78643K 7 0 proc 62 63K 83K 78643K 500 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 54 0 in_multi 85 3K 3K 78643K 230 0 ether_multi 1 0K 0K 78643K 16 0 mrt 0 0K 0K 78643K 11 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 254 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 143 72K 84K 78643K 3606 0 UVM aobj 40 7K 7K 78643K 48 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 88 0 NDP 12 0K 0K 78643K 56 0 temp 133 3866K 3930K 78643K 11595 0 kqueue 3 4K 14K 78643K 36 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 arp 64 7 0 1 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 50 0 48 1 0 1 1 0 8 0 rtentry 112 111 0 68 2 0 2 2 0 8 0 unpcb 120 722 0 712 2 1 1 2 0 8 0 syncache 264 7 0 7 3 3 0 1 0 8 0 tcpqe 32 76 0 76 1 1 0 1 0 8 0 tcpcb 544 250 0 245 2 1 1 2 0 8 0 inpcb 296 841 0 832 7 5 2 2 0 8 0 rttmr 72 7 0 6 1 0 1 1 0 8 0 nd6 48 38 0 31 1 0 1 1 0 8 0 ppxss 1136 3 0 3 3 3 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 6 0 6 2 1 1 1 0 482 1 pffrnode 88 6 0 6 2 1 1 1 0 8 1 pffrent 40 144 0 144 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 62 0 55 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 35 0 31 1 0 1 1 0 8 0 pfstkey 112 39 0 35 1 0 1 1 0 8 0 pfstate 328 37 0 33 3 1 2 3 0 8 0 pfsrctr 152 34 0 34 1 1 0 1 0 8 0 pfrule 1360 43 0 30 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 465 0 250 18 4 14 15 0 8 0 art_table 32 466 0 250 2 0 2 2 0 8 0 art_node 16 110 0 71 1 0 1 1 0 8 0 sysvmsgpl 40 78 0 38 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 166 0 156 1 0 1 1 0 8 0 shmpl 112 45 0 8 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2539 0 1139 88 0 88 88 0 8 0 ffsino 272 2539 0 1139 95 1 94 94 0 8 0 nchpl 144 4693 0 3084 60 0 60 60 0 8 0 uvmvnodes 72 2803 0 0 51 0 51 51 0 8 0 vnodes 208 2803 0 0 148 0 148 148 0 8 0 namei 1024 12348 0 12348 3 2 1 1 0 8 1 percpumem 16 51 0 19 1 0 1 1 0 8 0 vcpupl 1984 5 0 0 1 0 1 1 0 8 0 vmpool 560 11 0 6 1 0 1 1 0 8 0 pfiaddrpl 120 21 0 15 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 11864 0 11864 8 7 1 4 0 8 1 plimitpl 152 79 0 71 1 0 1 1 0 8 0 sigapl 424 1147 0 1094 6 0 6 6 0 8 0 futexpl 56 14417 0 14417 2 1 1 1 0 8 1 knotepl 112 102 0 83 1 0 1 1 0 8 0 kqueuepl 144 128 0 125 1 0 1 1 0 8 0 pipepl 304 215 0 205 3 2 1 2 0 8 0 fdescpl 496 1110 0 1094 3 0 3 3 0 8 0 filepl 152 7159 0 7057 7 2 5 6 0 8 1 lockfpl 104 163 0 162 1 0 1 1 0 8 0 lockfspl 48 53 0 52 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 32 0 21 1 0 1 1 0 8 0 ucredpl 96 771 0 761 1 0 1 1 0 8 0 zombiepl 144 1094 0 1094 2 1 1 1 0 8 1 processpl 992 1147 0 1094 8 1 7 7 0 8 0 procpl 624 2818 0 2755 7 1 6 6 0 8 1 sosppl 128 4 0 4 2 2 0 1 0 8 0 sockpl 400 1615 0 1594 13 10 3 6 0 8 0 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 9 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 317 0 0 39 0 39 39 0 8 0 mtagpl 96 57 0 0 2 0 2 2 0 8 0 mbufpl 256 481 0 0 27 0 27 27 0 8 0 bufpl 280 4890 0 137 340 0 340 340 0 8 0 anonpl 16 115717 0 98673 102 31 71 86 0 124 0 amapchunkpl 152 6591 0 6436 38 28 10 20 0 158 2 amappl16 192 5295 0 4359 72 25 47 59 0 8 0 amappl15 184 162 0 160 1 0 1 1 0 8 0 amappl14 176 30 0 24 1 0 1 1 0 8 0 amappl13 168 745 0 740 1 0 1 1 0 8 0 amappl12 160 6 0 5 2 1 1 1 0 8 0 amappl11 152 52 0 36 1 0 1 1 0 8 0 amappl10 144 25 0 18 1 0 1 1 0 8 0 amappl9 136 389 0 388 1 0 1 1 0 8 0 amappl8 128 374 0 334 2 0 2 2 0 8 0 amappl7 120 116 0 105 1 0 1 1 0 8 0 amappl6 112 28 0 24 1 0 1 1 0 8 0 amappl5 104 1011 0 995 1 0 1 1 0 8 0 amappl4 96 1213 0 1180 1 0 1 1 0 8 0 amappl3 88 153 0 147 1 0 1 1 0 8 0 amappl2 80 8107 0 8034 2 0 2 2 0 8 0 amappl1 72 39578 0 39129 23 13 10 18 0 8 0 amappl 80 3054 0 3003 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 47 0 8 1 0 1 1 0 8 0 uaddrrnd 24 1121 0 1100 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1121 0 1100 1 0 1 1 0 8 0 vmmpekpl 168 11461 0 11421 2 0 2 2 0 8 0 vmmpepl 168 146236 0 144096 136 41 95 121 0 357 1 vmsppl 368 1120 0 1100 2 0 2 2 0 8 0 pdppl 4096 2249 0 2205 7 1 6 6 0 8 0 pvpl 32 365126 0 344789 235 64 171 207 0 265 2 pmappl 232 1120 0 1100 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 314 0 23 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8274cff0) 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 __mp_lock(ffffffff82922230) at __mp_lock+0x125 __mp_lock_spin sys/kern/kern_lock.c:117 [inline] __mp_lock(ffffffff82922230) at __mp_lock+0x125 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0xc002624c58, count: -6 ddb{0}> machine ddbcpu 1 Stopped at ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> trace ifa_update_broadaddr(ffff800000ac5000,ffff800000b3d000,ffff8000230fc3d0) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff8000230fc3c0,ffff800000ac5000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd8067068e70,80206913,ffff8000230fc3c0,ffff800020e0a878) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd8066a4e908,80206913,ffff8000230fc3c0,ffff800020e0a878) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e0a878,ffff8000230fc4d8,ffff8000230fc520) at sys_ioctl+0x4a5 syscall(ffff8000230fc5a0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230fc5a0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3197ab82e0, count: -7