uvm_fault(0xfffffd807f0008a0, 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(0xfffffd807f0008a0, 0x0, 0, 1) -> e ifa_update_broadaddr(ffff800000ac6000,ffff800000b2ae00,ffff8000230ea800) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 end trace frame: 0xffff8000230ea6b0, count: 0 ddb{1}> trace ifa_update_broadaddr(ffff800000ac6000,ffff800000b2ae00,ffff8000230ea800) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff8000230ea7f0,ffff800000ac6000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd8066ddb978,80206913,ffff8000230ea7f0,ffff800020eaad68) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd80671f9e58,80206913,ffff8000230ea7f0,ffff800020eaad68) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020eaad68,ffff8000230ea908,ffff8000230ea950) at sys_ioctl+0x4a5 syscall(ffff8000230ea9d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230ea9d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3984eedadb0, count: -7 ddb{1}> show registers rdi 0xffffffff81c9872b ifa_update_broadaddr+0x1b rsi 0xe8 rbp 0xffff8000230ea610 rbx 0x10 rdx 0xe9 rcx 0xffff800020ed5000 rax 0xffff800020ed5000 r8 0xffffffff81185317 in_ioctl+0x387 r9 0x7 r10 0x3 r11 0x64f1a9cf0761dfc8 r12 0xffff8000230ea800 r13 0 r14 0xffff8000230ea800 r15 0 rip 0xffffffff81c9872f ifa_update_broadaddr+0x1f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000230ea5d0 ss 0x10 ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> show proc PROC (syz-executor.0) pid=215438 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=56, nice=20 forw=0xffffffffffffffff, list=0xffff800020ea9298,0xffffffff828ba3d8 process=0xffff800021f57778 user=0xffff8000230e5000, vmspace=0xfffffd807f0008a0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 61822 239247 15770 0 7 0 syz-executor.0 *61822 215438 15770 0 7 0x4000000 syz-executor.0 30937 326709 43097 60928 3 0x90 nanosleep syz-executor.1 30937 169819 43097 60928 3 0x4000090 msgwait syz-executor.1 30937 417934 43097 60928 3 0x4000090 msgwait syz-executor.1 30937 25888 43097 60928 3 0x4000090 fsleep syz-executor.1 22130 381315 0 0 3 0x14280 nfsidl nfsio 47189 13894 0 0 3 0x14280 nfsidl nfsio 59018 220936 0 0 3 0x14280 nfsidl nfsio 86863 192973 0 0 3 0x14280 nfsidl nfsio 53887 16466 0 0 3 0x14280 nfsidl nfsio 51519 324358 0 0 3 0x14280 nfsidl nfsio 44855 75693 0 0 3 0x14280 nfsidl nfsio 46333 364168 0 0 3 0x14280 nfsidl nfsio 61107 18326 0 0 3 0x14280 nfsidl nfsio 35145 166874 0 0 3 0x14280 nfsidl nfsio 19871 99766 0 0 3 0x14280 nfsidl nfsio 49672 467159 0 0 3 0x14280 nfsidl nfsio 27471 144387 0 0 3 0x14280 nfsidl nfsio 32328 5217 0 0 3 0x14280 nfsidl nfsio 85146 73219 0 0 3 0x14280 nfsidl nfsio 76364 1218 0 0 3 0x14280 nfsidl nfsio 59080 86955 0 0 3 0x14280 nfsidl nfsio 20311 244269 0 0 3 0x14280 nfsidl nfsio 64723 195396 0 0 3 0x14280 nfsidl nfsio 58989 86297 0 0 3 0x14280 nfsidl nfsio 54970 264974 0 0 3 0x14200 bored sosplice 43097 296050 38222 0 3 0x82 nanosleep syz-executor.1 15770 448711 38222 0 3 0x82 nanosleep syz-executor.0 38222 60342 15435 0 3 0x82 kqread syz-fuzzer 38222 323141 15435 0 3 0x4000082 thrsleep syz-fuzzer 38222 422258 15435 0 3 0x4000082 thrsleep syz-fuzzer 38222 22450 15435 0 3 0x4000082 thrsleep syz-fuzzer 38222 370734 15435 0 3 0x4000082 thrsleep syz-fuzzer 38222 499236 15435 0 3 0x4000082 thrsleep syz-fuzzer 38222 344349 15435 0 3 0x4000082 thrsleep syz-fuzzer 38222 291973 15435 0 3 0x4000082 thrsleep syz-fuzzer 38222 454413 15435 0 3 0x4000082 thrsleep syz-fuzzer 38222 381058 15435 0 3 0x4000082 thrsleep syz-fuzzer 15435 281902 70876 0 3 0x10008a pause ksh 70876 207178 75135 0 3 0x92 select sshd 63576 402885 1 0 3 0x100083 ttyin getty 75135 341018 1 0 3 0x80 select sshd 39244 314274 70020 74 3 0x100092 bpf pflogd 70020 366440 1 0 3 0x80 netio pflogd 89293 47538 92474 73 3 0x100090 kqread syslogd 92474 511702 1 0 3 0x100082 netio syslogd 57578 500289 1 77 3 0x100090 poll dhclient 12704 76798 1 0 3 0x80 poll dhclient 72630 147521 0 0 3 0x14200 bored smr 84910 229528 0 0 3 0x14200 pgzero zerothread 52689 477814 0 0 3 0x14200 aiodoned aiodoned 90915 278398 0 0 3 0x14200 syncer update 7829 512749 0 0 3 0x14200 cleaner cleaner 73876 117858 0 0 3 0x14200 reaper reaper 46953 509442 0 0 3 0x14200 pgdaemon pagedaemon 36029 62239 0 0 3 0x14200 bored crynlk 91366 16223 0 0 3 0x14200 bored crypto 61830 374545 0 0 3 0x40014200 acpi0 acpi0 78161 373238 0 0 3 0x40014200 idle1 20990 422261 0 0 3 0x14200 bored softnet 63146 466119 0 0 3 0x14200 bored systqmp 34382 428806 0 0 3 0x14200 bored systq 35716 244733 0 0 3 0x40014200 bored softclock 53634 182591 0 0 3 0x40014200 idle0 1 288942 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 61822 (syz-executor.0) thread 0xffff800020eaad68 (215438) exclusive rwlock netlock r = 0 (0xffffffff82753c68) #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 (0xffffffff828bb818) #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 9516 6414K 6672K 78643K 10923 0 pcb 13 8K 8K 78643K 71 0 rtable 99 4K 6K 78643K 396 0 ifaddr 83 17K 17K 78643K 136 0 counters 43 33K 34K 78643K 49 0 ioctlops 0 0K 4K 78643K 1538 0 iov 0 0K 12K 78643K 37 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1337 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 76 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 295 0 sigio 0 0K 0K 78643K 4 0 proc 61 63K 95K 78643K 454 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 75 3K 3K 78643K 146 0 ether_multi 1 0K 0K 78643K 10 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 227 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 131 55K 59K 78643K 1976 0 UVM aobj 23 2K 2K 78643K 23 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 58 0 NDP 11 0K 0K 78643K 21 0 temp 128 3868K 3933K 78643K 9625 0 kqueue 3 4K 8K 78643K 10 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 3 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 36 0 34 1 0 1 1 0 8 0 rtentry 112 74 0 37 2 0 2 2 0 8 0 unpcb 120 203 0 193 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 663 0 663 1 1 0 1 0 8 0 tcpcb 544 128 0 123 1 0 1 1 0 8 0 inpcb 296 755 0 747 3 1 2 2 0 8 1 nd6 48 20 0 19 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 39 0 36 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 14 0 5 1 0 1 1 0 8 0 pfstkey 112 14 0 5 1 0 1 1 0 8 0 pfstate 328 14 0 5 2 0 2 2 0 8 0 pfsrctr 152 15 0 9 1 0 1 1 0 8 0 pfrule 1360 32 0 25 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 309 0 152 17 0 17 17 0 8 5 art_table 32 310 0 152 3 0 3 3 0 8 1 art_node 16 73 0 40 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0 semapl 112 74 0 64 1 0 1 1 0 8 0 shmpl 112 20 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1781 0 377 89 0 89 89 0 8 0 ffsino 272 1781 0 377 95 1 94 94 0 8 0 nchpl 144 2358 0 748 60 0 60 60 0 8 0 uvmvnodes 72 1905 0 0 35 0 35 35 0 8 0 vnodes 208 1905 0 0 101 0 101 101 0 8 0 namei 1024 6278 0 6278 2 1 1 1 0 8 1 percpumem 16 35 0 3 1 0 1 1 0 8 0 vcpupl 1984 3 0 0 1 0 1 1 0 8 0 vmpool 560 5 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 11 0 10 1 0 1 1 0 8 0 scxspl 192 7086 0 7086 8 7 1 7 0 8 1 plimitpl 152 24 0 16 1 0 1 1 0 8 0 sigapl 424 531 0 478 6 0 6 6 0 8 0 futexpl 56 4580 0 4579 1 0 1 1 0 8 0 knotepl 112 72 0 53 1 0 1 1 0 8 0 kqueuepl 144 43 0 40 1 0 1 1 0 8 0 pipepl 304 110 0 100 2 1 1 2 0 8 0 fdescpl 496 495 0 478 3 0 3 3 0 8 0 filepl 152 2993 0 2891 6 1 5 6 0 8 1 lockfpl 104 63 0 61 1 0 1 1 0 8 0 lockfspl 48 22 0 20 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 216 0 205 1 0 1 1 0 8 0 zombiepl 144 478 0 478 2 1 1 1 0 8 1 processpl 992 531 0 478 8 1 7 7 0 8 0 procpl 624 1203 0 1137 6 0 6 6 0 8 0 srpgc 64 2 0 2 1 0 1 1 0 8 1 sosppl 128 2 0 2 1 1 0 1 0 8 0 sockpl 400 996 0 976 7 3 4 6 0 8 1 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 253 0 0 31 0 31 31 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 244 0 0 15 0 15 15 0 8 0 bufpl 280 3924 0 135 271 0 271 271 0 8 0 anonpl 16 56807 0 40419 70 1 69 69 0 124 0 amapchunkpl 152 2593 0 2457 7 0 7 7 0 158 0 amappl16 192 2077 0 1156 47 0 47 47 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 25 0 19 1 0 1 1 0 8 0 amappl13 168 165 0 160 1 0 1 1 0 8 0 amappl12 160 150 0 146 2 1 1 1 0 8 0 amappl11 152 177 0 160 1 0 1 1 0 8 0 amappl10 144 18 0 11 1 0 1 1 0 8 0 amappl9 136 389 0 387 1 0 1 1 0 8 0 amappl8 128 367 0 328 2 0 2 2 0 8 0 amappl7 120 118 0 105 1 0 1 1 0 8 0 amappl6 112 149 0 145 1 0 1 1 0 8 0 amappl5 104 395 0 377 1 0 1 1 0 8 0 amappl4 96 496 0 465 1 0 1 1 0 8 0 amappl3 88 115 0 108 1 0 1 1 0 8 0 amappl2 80 3159 0 3077 2 0 2 2 0 8 0 amappl1 72 20669 0 20199 23 13 10 18 0 8 0 amappl 80 1441 0 1392 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 22 0 0 1 0 1 1 0 8 0 uaddrrnd 24 500 0 480 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 500 0 480 1 0 1 1 0 8 0 vmmpekpl 168 8162 0 8120 3 0 3 3 0 8 0 vmmpepl 168 67857 0 65625 120 21 99 114 0 357 1 vmsppl 368 499 0 480 2 0 2 2 0 8 0 pdppl 4096 1007 0 963 7 1 6 6 0 8 0 pvpl 32 190849 0 171119 170 2 168 168 0 265 4 pmappl 232 499 0 480 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 284 0 9 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(ffffffff826ebff0) 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: 0x7f7ffffec4b0, count: -3 ddb{0}> machine ddbcpu 1 Stopped at ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> trace ifa_update_broadaddr(ffff800000ac6000,ffff800000b2ae00,ffff8000230ea800) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff8000230ea7f0,ffff800000ac6000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd8066ddb978,80206913,ffff8000230ea7f0,ffff800020eaad68) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd80671f9e58,80206913,ffff8000230ea7f0,ffff800020eaad68) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020eaad68,ffff8000230ea908,ffff8000230ea950) at sys_ioctl+0x4a5 syscall(ffff8000230ea9d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230ea9d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3984eedadb0, count: -7