uvm_fault(0xfffffd807efff2e0, 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(0xfffffd807efff2e0, 0x0, 0, 1) -> e ifa_update_broadaddr(ffff800000af7000,ffff800000b1e000,ffff800023101ff0) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 end trace frame: 0xffff800023101ea0, count: 0 ddb{1}> trace ifa_update_broadaddr(ffff800000af7000,ffff800000b1e000,ffff800023101ff0) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800023101fe0,ffff800000af7000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd806b084b10,80206913,ffff800023101fe0,ffff800020e374f8) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd80684daef0,80206913,ffff800023101fe0,ffff800020e374f8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e374f8,ffff8000231020f8,ffff800023102140) at sys_ioctl+0x4a5 syscall(ffff8000231021c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000231021c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfa0aa7b9530, count: -7 ddb{1}> show registers rdi 0xffffffff810a5ffb ifa_update_broadaddr+0x1b rsi 0xe5 rbp 0xffff800023101e00 rbx 0x10 rdx 0xe6 rcx 0xffff800023103000 rax 0xffff800023103000 r8 0xffffffff81842e27 in_ioctl+0x387 r9 0x7 r10 0x3 r11 0x6ca71ce776867d9f r12 0xffff800023101ff0 r13 0 r14 0xffff800023101ff0 r15 0 rip 0xffffffff810a5fff ifa_update_broadaddr+0x1f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800023101dc0 ss 0x10 ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> show proc PROC (syz-executor.1) pid=68155 stat=onproc flags process=10 proc=4000000 pri=32, usrpri=77, nice=20 forw=0xffffffffffffffff, list=0xffff800020e37018,0xffffffff82920240 process=0xffff800020eb5380 user=0xffff8000230fd000, vmspace=0xfffffd807efff2e0 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 82768 16257 27646 60928 2 0x10 syz-executor.1 *82768 68155 27646 60928 7 0x4000010 syz-executor.1 96131 516813 0 0 3 0x14200 acct acct 37422 506287 0 0 3 0x14200 bored sosplice 27646 61994 78461 0 3 0x82 nanosleep syz-executor.1 74688 509640 78461 0 3 0x82 piperd syz-executor.0 78461 477014 77889 0 3 0x82 thrsleep syz-fuzzer 78461 513297 77889 0 3 0x4000082 nanosleep syz-fuzzer 78461 400272 77889 0 3 0x4000082 thrsleep syz-fuzzer 78461 111295 77889 0 3 0x4000082 thrsleep syz-fuzzer 78461 478550 77889 0 3 0x4000082 thrsleep syz-fuzzer 78461 29645 77889 0 3 0x4000082 kqread syz-fuzzer 78461 462374 77889 0 3 0x4000082 thrsleep syz-fuzzer 78461 286955 77889 0 3 0x4000082 thrsleep syz-fuzzer 78461 445924 77889 0 3 0x4000082 thrsleep syz-fuzzer 78461 159726 77889 0 7 0x4000002 syz-fuzzer 77889 476317 12756 0 3 0x10008a pause ksh 12756 333591 99381 0 3 0x92 select sshd 79674 292463 1 0 3 0x100083 ttyin getty 99381 126930 1 0 3 0x80 select sshd 18862 397041 40778 74 3 0x100092 bpf pflogd 40778 449765 1 0 3 0x80 netio pflogd 9775 171480 91106 73 3 0x100090 kqread syslogd 91106 364429 1 0 3 0x100082 netio syslogd 91177 66737 1 77 3 0x100090 poll dhclient 49368 229963 1 0 3 0x80 poll dhclient 96530 38424 0 0 3 0x14200 bored smr 11492 230938 0 0 2 0x14200 zerothread 51557 182366 0 0 3 0x14200 aiodoned aiodoned 79650 393100 0 0 3 0x14200 syncer update 89552 1400 0 0 3 0x14200 cleaner cleaner 74592 190646 0 0 3 0x14200 reaper reaper 8791 86495 0 0 3 0x14200 pgdaemon pagedaemon 98598 453829 0 0 3 0x14200 bored crynlk 70568 505746 0 0 3 0x14200 bored crypto 24645 257034 0 0 3 0x40014200 acpi0 acpi0 11529 372477 0 0 3 0x40014200 idle1 30427 56252 0 0 3 0x14200 bored softnet 26421 4391 0 0 3 0x14200 bored systqmp 85789 53945 0 0 3 0x14200 bored systq 74826 321242 0 0 3 0x40014200 bored softclock 36518 108303 0 0 3 0x40014200 idle0 1 285010 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 82768 (syz-executor.1) thread 0xffff800020e374f8 (68155) 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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9529 6427K 6814K 78643K 11139 0 pcb 13 8K 8K 78643K 65 0 rtable 109 7K 7K 78643K 309 0 ifaddr 87 17K 17K 78643K 116 0 counters 43 33K 34K 78643K 51 0 ioctlops 0 0K 4K 78643K 1527 0 iov 0 0K 32K 78643K 40 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1495 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 1K 78643K 50 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 314 0 sigio 0 0K 0K 78643K 8 0 proc 61 63K 95K 78643K 469 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 44 0 in_multi 62 3K 3K 78643K 101 0 ether_multi 1 0K 0K 78643K 6 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 230 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 124 39K 39K 78643K 1912 0 UVM aobj 20 4K 4K 78643K 22 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 42 0 NDP 13 0K 0K 78643K 23 0 temp 116 3863K 3931K 78643K 5631 0 kqueue 3 4K 8K 78643K 19 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 9 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 58 0 21 2 0 2 2 0 8 0 unpcb 120 415 0 405 1 0 1 1 0 8 0 syncache 264 6 0 6 2 1 1 1 0 8 1 tcpqe 32 10 0 10 2 1 1 1 0 8 1 tcpcb 544 115 0 110 1 0 1 1 0 8 0 inpcb 296 637 0 626 2 0 2 2 0 8 1 nd6 48 11 0 5 1 0 1 1 0 8 0 ppxss 1128 4 0 4 1 1 0 1 0 8 0 pfstscr 40 4 0 4 1 0 1 1 0 8 1 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 4 0 2 1 0 1 1 0 8 0 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 12 0 5 2 1 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 264 2 0 2 1 1 0 1 0 8 0 pfstitem 24 39 0 16 1 0 1 1 0 8 0 pfstkey 112 41 0 18 1 0 1 1 0 8 0 pfstate 328 39 0 16 3 0 3 3 0 8 0 pfrule 1360 25 0 19 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 231 0 76 12 1 11 12 0 8 0 art_table 32 232 0 76 2 0 2 2 0 8 0 art_node 16 57 0 26 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 42 0 32 1 0 1 1 0 8 0 shmpl 112 19 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1826 0 421 89 0 89 89 0 8 0 ffsino 272 1826 0 421 95 0 95 95 0 8 0 nchpl 144 2475 0 866 60 0 60 60 0 8 0 uvmvnodes 72 2110 0 0 39 0 39 39 0 8 0 vnodes 208 2110 0 0 112 0 112 112 0 8 0 namei 1024 6852 0 6852 1 0 1 1 0 8 1 percpumem 16 36 0 4 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 4 0 2 2 1 1 1 0 8 0 pfiaddrpl 120 6 0 0 1 0 1 1 0 8 0 scxspl 192 7936 0 7936 8 7 1 7 0 8 1 plimitpl 152 35 0 27 1 0 1 1 0 8 0 sigapl 424 531 0 498 4 0 4 4 0 8 0 futexpl 56 5802 0 5802 1 0 1 1 0 8 1 knotepl 112 79 0 60 1 0 1 1 0 8 0 kqueuepl 144 48 0 44 1 0 1 1 0 8 0 pipepl 304 117 0 107 2 1 1 2 0 8 0 fdescpl 496 514 0 498 3 0 3 3 0 8 0 filepl 152 3417 0 3315 5 0 5 5 0 8 1 lockfpl 104 96 0 95 1 0 1 1 0 8 0 lockfspl 48 35 0 34 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 290 0 279 1 0 1 1 0 8 0 zombiepl 144 498 0 498 1 0 1 1 0 8 1 processpl 992 531 0 498 5 0 5 5 0 8 0 procpl 624 1132 0 1089 4 0 4 4 0 8 0 srpgc 64 2 0 2 1 1 0 1 0 8 0 sosppl 128 7 0 7 2 2 0 1 0 8 0 sockpl 400 1083 0 1062 5 2 3 4 0 8 0 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 158 0 0 19 0 19 19 0 8 0 mtagpl 96 22 0 0 1 0 1 1 0 8 0 mbufpl 256 183 0 0 11 0 11 11 0 8 0 bufpl 280 4311 0 133 299 0 299 299 0 8 0 anonpl 16 58922 0 41996 71 1 70 70 0 124 0 amapchunkpl 152 2874 0 2723 23 6 17 20 0 158 10 amappl16 192 2250 0 1310 49 1 48 48 0 8 1 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 76 0 72 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 9 0 8 1 0 1 1 0 8 0 amappl11 152 110 0 94 1 0 1 1 0 8 0 amappl10 144 18 0 11 1 0 1 1 0 8 0 amappl9 136 607 0 604 1 0 1 1 0 8 0 amappl8 128 346 0 315 2 0 2 2 0 8 0 amappl7 120 119 0 107 1 0 1 1 0 8 0 amappl6 112 27 0 22 1 0 1 1 0 8 0 amappl5 104 373 0 356 1 0 1 1 0 8 0 amappl4 96 547 0 520 1 0 1 1 0 8 0 amappl3 88 170 0 163 1 0 1 1 0 8 0 amappl2 80 3157 0 3086 2 0 2 2 0 8 0 amappl1 72 20881 0 20438 23 13 10 18 0 8 0 amappl 80 1380 0 1334 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 21 0 2 1 0 1 1 0 8 0 uaddrrnd 24 518 0 500 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 518 0 500 1 0 1 1 0 8 0 vmmpekpl 168 7673 0 7629 3 0 3 3 0 8 0 vmmpepl 168 69518 0 67414 120 27 93 112 0 357 1 vmsppl 368 517 0 500 2 0 2 2 0 8 0 pdppl 4096 1043 0 1002 7 1 6 6 0 8 0 pvpl 32 197181 0 177099 175 6 169 170 0 265 5 pmappl 232 517 0 500 3 1 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 258 0 7 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff827a2ff0) 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: 0xc003a44b10, count: -3 ddb{0}> machine ddbcpu 1 Stopped at ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> trace ifa_update_broadaddr(ffff800000af7000,ffff800000b1e000,ffff800023101ff0) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800023101fe0,ffff800000af7000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd806b084b10,80206913,ffff800023101fe0,ffff800020e374f8) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd80684daef0,80206913,ffff800023101fe0,ffff800020e374f8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e374f8,ffff8000231020f8,ffff800023102140) at sys_ioctl+0x4a5 syscall(ffff8000231021c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000231021c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfa0aa7b9530, count: -7