uvm_fault(0xfffffd80641c0740, 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(0xfffffd80641c0740, 0x0, 0, 1) -> e ifa_update_broadaddr(ffff800000afe000,ffff800000b1ef00,ffff800024140940) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 end trace frame: 0xffff8000241407f0, count: 0 ddb{1}> trace ifa_update_broadaddr(ffff800000afe000,ffff800000b1ef00,ffff800024140940) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800024140930,ffff800000afe000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd806c8ef4c0,80206913,ffff800024140930,ffff800020e09768) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd806ca16db8,80206913,ffff800024140930,ffff800020e09768) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e09768,ffff800024140a48,ffff800024140a90) at sys_ioctl+0x4a5 syscall(ffff800024140b10) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800024140b10) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6444662f900, count: -7 ddb{1}> show registers rdi 0xffffffff8182df6b ifa_update_broadaddr+0x1b rsi 0xeb rbp 0xffff800024140750 rbx 0x10 rdx 0xec rcx 0xffff800021ee1000 rax 0xffff800021ee1000 r8 0xffffffff816b2707 in_ioctl+0x387 r9 0x7 r10 0x3 r11 0xdf440404ff2f7dd9 r12 0xffff800024140940 r13 0 r14 0xffff800024140940 r15 0 rip 0xffffffff8182df6f ifa_update_broadaddr+0x1f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800024140710 ss 0x10 ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> show proc PROC (syz-executor.1) pid=197919 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e09c48,0xffffffff828b51a0 process=0xffff800024142bd0 user=0xffff80002413b000, vmspace=0xfffffd80641c0740 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 82150 365737 13096 0 2 0 syz-executor.1 *82150 197919 13096 0 7 0x4000000 syz-executor.1 32441 296013 0 0 3 0x14280 nfsidl nfsio 92203 415693 0 0 3 0x14280 nfsidl nfsio 81323 183271 0 0 3 0x14280 nfsidl nfsio 15994 298418 0 0 3 0x14280 nfsidl nfsio 74357 229131 0 0 3 0x14280 nfsidl nfsio 30401 330154 0 0 3 0x14280 nfsidl nfsio 12458 269436 0 0 3 0x14280 nfsidl nfsio 82877 330947 0 0 3 0x14280 nfsidl nfsio 17573 122652 0 0 3 0x14280 nfsidl nfsio 45645 249705 0 0 3 0x14280 nfsidl nfsio 84422 522153 0 0 3 0x14280 nfsidl nfsio 97444 333255 0 0 3 0x14280 nfsidl nfsio 22101 134062 0 0 3 0x14280 nfsidl nfsio 86863 439504 0 0 3 0x14280 nfsidl nfsio 9041 63866 0 0 3 0x14280 nfsidl nfsio 95641 310736 0 0 3 0x14280 nfsidl nfsio 34831 80270 0 0 3 0x14280 nfsidl nfsio 32740 413967 0 0 3 0x14280 nfsidl nfsio 8419 272230 0 0 3 0x14280 nfsidl nfsio 4809 197884 0 0 3 0x14280 nfsidl nfsio 13096 113835 31905 0 3 0x82 nanosleep syz-executor.1 68524 231253 0 0 3 0x14200 bored sosplice 77908 288448 31905 0 3 0x82 piperd syz-executor.0 31905 449551 95409 0 3 0x82 thrsleep syz-fuzzer 31905 103506 95409 0 3 0x4000082 nanosleep syz-fuzzer 31905 59712 95409 0 3 0x4000082 thrsleep syz-fuzzer 31905 3525 95409 0 3 0x4000082 thrsleep syz-fuzzer 31905 74728 95409 0 3 0x4000082 thrsleep syz-fuzzer 31905 396658 95409 0 3 0x4000082 thrsleep syz-fuzzer 31905 278654 95409 0 3 0x4000082 kqread syz-fuzzer 31905 200717 95409 0 3 0x4000082 thrsleep syz-fuzzer 31905 442144 95409 0 3 0x4000082 thrsleep syz-fuzzer 31905 296173 95409 0 7 0x4000002 syz-fuzzer 95409 28033 37809 0 3 0x10008a pause ksh 37809 337518 98978 0 3 0x92 select sshd 85618 466612 1 0 3 0x100083 ttyin getty 98978 330716 1 0 3 0x80 select sshd 51465 37322 91178 74 3 0x100092 bpf pflogd 91178 392017 1 0 3 0x80 netio pflogd 59336 357977 34967 73 3 0x100090 kqread syslogd 34967 96484 1 0 3 0x100082 netio syslogd 82837 419056 1 77 3 0x100090 poll dhclient 74426 137180 1 0 3 0x80 poll dhclient 15129 219591 0 0 3 0x14200 bored smr 95543 5971 0 0 2 0x14200 zerothread 61428 447358 0 0 3 0x14200 aiodoned aiodoned 42094 463828 0 0 3 0x14200 syncer update 35260 467690 0 0 3 0x14200 cleaner cleaner 55980 455907 0 0 3 0x14200 reaper reaper 2848 405172 0 0 3 0x14200 pgdaemon pagedaemon 65673 144663 0 0 3 0x14200 bored crynlk 92349 198690 0 0 3 0x14200 bored crypto 58450 341618 0 0 3 0x40014200 acpi0 acpi0 57759 401859 0 0 3 0x40014200 idle1 13001 112447 0 0 3 0x14200 bored softnet 54316 182324 0 0 3 0x14200 bored systqmp 48982 117369 0 0 3 0x14200 bored systq 48246 63258 0 0 3 0x40014200 bored softclock 13470 198323 0 0 3 0x40014200 idle0 1 299768 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 82150 (syz-executor.1) thread 0xffff800020e09768 (197919) exclusive rwlock netlock r = 0 (0xffffffff827400d8) #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 (0xffffffff828f5de0) #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 6422K 6680K 78643K 11172 0 pcb 13 8K 8K 78643K 87 0 rtable 90 3K 4K 78643K 411 0 ifaddr 73 15K 15K 78643K 163 0 sysctl 2 0K 0K 78643K 2 0 counters 41 33K 34K 78643K 67 0 ioctlops 0 0K 4K 78643K 1553 0 iov 0 0K 32K 78643K 72 0 mount 1 1K 1K 78643K 1 0 vnodes 1215 76K 77K 78643K 1437 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 9 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 66 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 467 0 sigio 0 0K 0K 78643K 5 0 proc 61 63K 95K 78643K 496 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 663 0 in_multi 68 3K 3K 78643K 200 0 ether_multi 1 0K 0K 78643K 10 0 mrt 0 0K 0K 78643K 2 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 241 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 153K 157K 78643K 2474 0 UVM aobj 21 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 71 0 NDP 11 0K 0K 78643K 35 0 temp 109 3865K 3929K 78643K 14204 0 kqueue 3 4K 14K 78643K 30 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 11 0 6 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 39 0 37 1 0 1 1 0 8 0 rtentry 112 80 0 45 4 2 2 2 0 8 0 unpcb 120 259 0 249 1 0 1 1 0 8 0 syncache 264 13 0 13 5 5 0 1 0 8 0 tcpqe 32 91 0 91 2 2 0 1 0 8 0 tcpcb 544 557 0 551 2 1 1 2 0 8 0 inpcb 296 965 0 955 3 1 2 2 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 21 0 18 2 1 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1128 2 0 2 1 1 0 1 0 8 0 pffrag 232 1 0 1 1 1 0 1 0 482 0 pffrnode 88 1 0 1 1 1 0 1 0 8 0 pffrent 40 2 0 2 1 1 0 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 8 0 8 3 2 1 1 0 8 1 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 30 0 12 1 0 1 1 0 8 0 pfstkey 112 30 0 12 1 0 1 1 0 8 0 pfstate 328 30 0 12 2 0 2 2 0 8 0 pfrule 1360 28 0 22 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 279 0 118 16 5 11 12 0 8 0 art_table 32 281 0 118 2 0 2 2 0 8 0 art_node 16 79 0 47 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 5 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 54 0 44 1 0 1 1 0 8 0 shmpl 112 20 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2008 0 606 89 0 89 89 0 8 0 ffsino 272 2008 0 606 94 0 94 94 0 8 0 nchpl 144 2917 0 1320 60 0 60 60 0 8 0 uvmvnodes 72 2203 0 0 41 0 41 41 0 8 0 vnodes 208 2203 0 0 116 0 116 116 0 8 0 namei 1024 8044 0 8044 1 0 1 1 0 8 1 percpumem 16 44 0 13 1 0 1 1 0 8 0 vcpupl 1984 13 0 0 2 0 2 2 0 8 0 vmpool 560 15 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 2 1 1 0 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 8763 0 8763 8 7 1 7 0 8 1 plimitpl 152 34 0 26 1 0 1 1 0 8 0 sigapl 424 700 0 648 6 0 6 6 0 8 0 futexpl 56 8148 0 8148 1 0 1 1 0 8 1 knotepl 112 110 0 91 1 0 1 1 0 8 0 kqueuepl 144 80 0 77 1 0 1 1 0 8 0 pipepl 304 144 0 134 4 2 2 2 0 8 1 fdescpl 496 664 0 648 3 0 3 3 0 8 0 filepl 152 4207 0 4105 5 0 5 5 0 8 1 lockfpl 104 123 0 122 1 0 1 1 0 8 0 lockfspl 48 33 0 32 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 23 0 12 1 0 1 1 0 8 0 ucredpl 96 424 0 415 1 0 1 1 0 8 0 zombiepl 144 648 0 648 1 0 1 1 0 8 1 processpl 992 700 0 648 7 0 7 7 0 8 0 procpl 624 1624 0 1562 6 0 6 6 0 8 1 srpgc 64 2 0 2 1 1 0 1 0 8 0 sosppl 128 10 0 10 1 0 1 1 0 8 1 sockpl 400 1265 0 1243 5 1 4 4 0 8 1 mcl64k 65536 9 0 0 2 0 2 2 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 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 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 184 0 0 22 0 22 22 0 8 0 mtagpl 96 20 0 0 1 0 1 1 0 8 0 mbufpl 256 348 0 0 22 0 22 22 0 8 0 bufpl 280 4433 0 135 307 0 307 307 0 8 0 anonpl 16 81442 0 64123 91 18 73 86 0 124 0 amapchunkpl 152 3985 0 3827 21 13 8 20 0 158 0 amappl16 192 3293 0 2314 62 12 50 59 0 8 1 amappl15 184 226 0 224 1 0 1 1 0 8 0 amappl14 176 22 0 19 1 0 1 1 0 8 0 amappl13 168 35 0 32 1 0 1 1 0 8 0 amappl12 160 6 0 4 1 0 1 1 0 8 0 amappl11 152 57 0 42 1 0 1 1 0 8 0 amappl10 144 246 0 240 1 0 1 1 0 8 0 amappl9 136 387 0 386 1 0 1 1 0 8 0 amappl8 128 364 0 333 1 0 1 1 0 8 0 amappl7 120 136 0 121 1 0 1 1 0 8 0 amappl6 112 26 0 20 1 0 1 1 0 8 0 amappl5 104 566 0 549 1 0 1 1 0 8 0 amappl4 96 512 0 479 1 0 1 1 0 8 0 amappl3 88 125 0 119 1 0 1 1 0 8 0 amappl2 80 4523 0 4451 2 0 2 2 0 8 0 amappl1 72 24514 0 24072 23 13 10 18 0 8 0 amappl 80 1880 0 1829 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 2 1 0 1 1 0 8 0 uaddrrnd 24 679 0 650 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 679 0 650 1 0 1 1 0 8 0 vmmpekpl 168 8799 0 8758 2 0 2 2 0 8 0 vmmpepl 168 88131 0 85976 148 47 101 128 0 357 5 vmsppl 368 678 0 650 3 0 3 3 0 8 0 pdppl 4096 1365 0 1313 7 0 7 7 0 8 0 pvpl 32 247920 0 227533 202 27 175 202 0 265 5 pmappl 232 678 0 650 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 281 0 10 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(ffffffff82701ff0) 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(ffffffff828f5bd8) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828f5bd8) at __mp_lock+0x127 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: 0xc002e70c80, count: -6 ddb{0}> machine ddbcpu 1 Stopped at ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> trace ifa_update_broadaddr(ffff800000afe000,ffff800000b1ef00,ffff800024140940) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800024140930,ffff800000afe000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd806c8ef4c0,80206913,ffff800024140930,ffff800020e09768) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd806ca16db8,80206913,ffff800024140930,ffff800020e09768) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e09768,ffff800024140a48,ffff800024140a90) at sys_ioctl+0x4a5 syscall(ffff800024140b10) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800024140b10) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6444662f900, count: -7