uvm_fault(0xfffffd807f000450, 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(0xfffffd807f000450, 0x0, 0, 1) -> e ifa_update_broadaddr(ffff800000b4c800,ffff800000b26f00,ffff800022732740) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 end trace frame: 0xffff8000227325f0, count: 0 ddb{1}> trace ifa_update_broadaddr(ffff800000b4c800,ffff800000b26f00,ffff800022732740) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800022732730,ffff800000b4c800,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd80698dae38,80206913,ffff800022732730,ffff800020e09288) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd807ba261c8,80206913,ffff800022732730,ffff800020e09288) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e09288,ffff800022732848,ffff800022732890) at sys_ioctl+0x4a5 syscall(ffff800022732910) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022732910) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xde7f8e93da0, count: -7 ddb{1}> show registers rdi 0xffffffff8169396b ifa_update_broadaddr+0x1b rsi 0xdb rbp 0xffff800022732550 rbx 0x10 rdx 0xdc rcx 0xffff800022121000 rax 0xffff800022121000 r8 0xffffffff81d44497 in_ioctl+0x387 r9 0x7 r10 0x3 r11 0x2eac5f0545da3fce r12 0xffff800022732740 r13 0 r14 0xffff800022732740 r15 0 rip 0xffffffff8169396f ifa_update_broadaddr+0x1f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800022732510 ss 0x10 ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> show proc PROC (syz-executor.1) pid=185765 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff800020e09018,0xffffffff82915f90 process=0xffff800020ea0bc8 user=0xffff80002272d000, vmspace=0xfffffd807f000450 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 46011 178167 95866 0 7 0 syz-executor.1 *46011 185765 95866 0 7 0x4000000 syz-executor.1 95866 27035 96395 0 3 0x82 nanosleep syz-executor.1 52895 354749 96395 0 3 0x82 nanosleep syz-executor.0 52997 185592 0 0 3 0x14200 acct acct 86312 123821 0 0 3 0x14200 bored sosplice 96395 472981 71229 0 3 0x82 thrsleep syz-fuzzer 96395 274995 71229 0 3 0x4000082 thrsleep syz-fuzzer 96395 388140 71229 0 3 0x4000082 thrsleep syz-fuzzer 96395 451652 71229 0 3 0x4000082 thrsleep syz-fuzzer 96395 185896 71229 0 3 0x4000082 thrsleep syz-fuzzer 96395 17155 71229 0 3 0x4000082 thrsleep syz-fuzzer 96395 457385 71229 0 3 0x4000082 thrsleep syz-fuzzer 96395 44339 71229 0 3 0x4000082 thrsleep syz-fuzzer 96395 440225 71229 0 3 0x4000082 kqread syz-fuzzer 96395 383570 71229 0 3 0x4000082 thrsleep syz-fuzzer 71229 362352 64440 0 3 0x10008a pause ksh 64440 280140 9815 0 3 0x92 select sshd 88065 15288 1 0 3 0x100083 ttyin getty 9815 271483 1 0 3 0x80 select sshd 60985 18971 88228 74 3 0x100092 bpf pflogd 88228 173483 1 0 3 0x80 netio pflogd 30013 147497 23483 73 3 0x100090 kqread syslogd 23483 420559 1 0 3 0x100082 netio syslogd 25582 494622 1 77 3 0x100090 poll dhclient 59404 355552 1 0 3 0x80 poll dhclient 9437 416786 0 0 3 0x14200 bored smr 50881 297212 0 0 3 0x14200 pgzero zerothread 3101 454060 0 0 3 0x14200 aiodoned aiodoned 60204 27531 0 0 3 0x14200 syncer update 11315 46166 0 0 3 0x14200 cleaner cleaner 30187 327333 0 0 3 0x14200 reaper reaper 52929 65460 0 0 3 0x14200 pgdaemon pagedaemon 146 474812 0 0 3 0x14200 bored crynlk 2022 32226 0 0 3 0x14200 bored crypto 84709 484470 0 0 3 0x40014200 acpi0 acpi0 1581 316405 0 0 3 0x40014200 idle1 50484 421424 0 0 3 0x14200 bored softnet 18174 484703 0 0 3 0x14200 bored systqmp 35354 476880 0 0 3 0x14200 bored systq 17336 68800 0 0 3 0x40014200 bored softclock 48987 64303 0 0 3 0x40014200 idle0 1 264466 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 46011 (syz-executor.1) thread 0xffff800020e09288 (185765) exclusive rwlock netlock r = 0 (0xffffffff82728958) #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 (0xffffffff828eb278) #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 9513 6422K 6995K 78643K 11362 0 pcb 13 8K 8K 78643K 70 0 rtable 95 6K 7K 78643K 598 0 ifaddr 69 14K 16K 78643K 189 0 counters 43 33K 34K 78643K 69 0 ioctlops 0 0K 4K 78643K 1617 0 iov 0 0K 16K 78643K 45 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1476 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 16 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 116 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 745 0 sigio 0 0K 0K 78643K 10 0 proc 61 63K 95K 78643K 598 0 subproc 32 2K 2K 78643K 85 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 1K 78643K 864 0 in_multi 38 2K 3K 78643K 280 0 ether_multi 1 0K 0K 78643K 8 0 mrt 0 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 270 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 123 39K 39K 78643K 3325 0 UVM aobj 25 4K 4K 78643K 45 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 49 0 NDP 11 0K 0K 78643K 39 0 temp 108 3867K 3931K 78643K 6880 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 16 0 11 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 43 0 41 1 0 1 1 0 8 0 rtentry 112 123 0 92 2 0 2 2 0 8 0 unpcb 120 233 0 223 1 0 1 1 0 8 0 syncache 264 10 0 10 3 3 0 1 0 8 0 tcpqe 32 219 0 219 1 1 0 1 0 8 0 tcpcb 544 893 0 886 2 0 2 2 0 8 1 inpcb 296 1628 0 1617 3 1 2 2 0 8 0 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 28 0 27 1 0 1 1 0 8 0 ppxss 1136 2 0 2 2 2 0 1 0 8 0 pffrag 232 4 0 4 2 1 1 1 0 482 1 pffrnode 88 4 0 4 2 1 1 1 0 8 1 pffrent 40 98 0 98 3 2 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 37 0 32 1 0 1 1 0 8 0 pfstitem 24 39 0 21 1 0 1 1 0 8 0 pfstkey 112 39 0 21 1 0 1 1 0 8 0 pfstate 328 39 0 21 3 0 3 3 0 8 0 pfrule 1360 32 0 27 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 550 0 407 20 7 13 16 0 8 1 art_table 32 551 0 407 2 0 2 2 0 8 0 art_node 16 118 0 89 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 9 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 112 0 102 1 0 1 1 0 8 0 shmpl 112 42 0 20 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2245 0 836 90 1 89 89 0 8 0 ffsino 272 2245 0 836 97 2 95 95 0 8 0 nchpl 144 3349 0 1750 60 0 60 60 0 8 0 uvmvnodes 72 2503 0 0 46 0 46 46 0 8 0 vnodes 208 2503 0 0 132 0 132 132 0 8 0 namei 1024 9129 0 9129 2 1 1 1 0 8 1 percpumem 16 45 0 13 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 2 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 12 0 10 1 0 1 1 0 8 0 scxspl 192 10159 0 10159 9 8 1 7 0 8 1 plimitpl 152 43 0 35 1 0 1 1 0 8 0 sigapl 424 953 0 920 4 0 4 4 0 8 0 futexpl 56 9555 0 9555 1 0 1 1 0 8 1 knotepl 112 114 0 95 1 0 1 1 0 8 0 kqueuepl 144 64 0 61 1 0 1 1 0 8 0 pipepl 304 227 0 217 5 4 1 2 0 8 0 fdescpl 496 936 0 920 3 0 3 3 0 8 0 filepl 152 5168 0 5066 6 1 5 5 0 8 0 lockfpl 104 229 0 228 1 0 1 1 0 8 0 lockfspl 48 106 0 105 1 0 1 1 0 8 0 sessionpl 112 21 0 10 1 0 1 1 0 8 0 pgrppl 48 29 0 18 1 0 1 1 0 8 0 ucredpl 96 265 0 256 1 0 1 1 0 8 0 zombiepl 144 920 0 919 2 1 1 1 0 8 0 processpl 992 953 0 919 6 1 5 5 0 8 0 procpl 624 2384 0 2340 4 0 4 4 0 8 0 srpgc 64 4 0 4 2 1 1 1 0 8 1 sosppl 128 8 0 8 1 1 0 1 0 8 0 sockpl 400 1904 0 1881 7 3 4 4 0 8 1 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 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 9 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 193 0 0 24 0 24 24 0 8 0 mtagpl 96 34 0 0 1 0 1 1 0 8 0 mbufpl 256 403 0 0 22 0 22 22 0 8 0 bufpl 280 4486 0 134 311 0 311 311 0 8 0 anonpl 16 129021 0 111908 95 14 81 85 0 124 10 amapchunkpl 152 5745 0 5576 19 11 8 14 0 158 0 amappl16 192 5120 0 4216 73 20 53 57 0 8 7 amappl15 184 160 0 158 2 1 1 1 0 8 0 amappl14 176 33 0 29 1 0 1 1 0 8 0 amappl13 168 58 0 55 1 0 1 1 0 8 0 amappl12 160 12 0 9 2 1 1 1 0 8 0 amappl11 152 68 0 53 1 0 1 1 0 8 0 amappl10 144 245 0 239 1 0 1 1 0 8 0 amappl9 136 564 0 561 1 0 1 1 0 8 0 amappl8 128 586 0 556 2 0 2 2 0 8 0 amappl7 120 268 0 254 1 0 1 1 0 8 0 amappl6 112 25 0 20 2 1 1 1 0 8 0 amappl5 104 815 0 797 1 0 1 1 0 8 0 amappl4 96 541 0 512 1 0 1 1 0 8 0 amappl3 88 127 0 121 1 0 1 1 0 8 0 amappl2 80 6502 0 6427 2 0 2 2 0 8 0 amappl1 72 36452 0 35997 23 13 10 18 0 8 0 amappl 80 2693 0 2642 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 44 0 20 1 0 1 1 0 8 0 uaddrrnd 24 938 0 920 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 938 0 920 1 0 1 1 0 8 0 vmmpekpl 168 10474 0 10431 3 0 3 3 0 8 0 vmmpepl 168 128215 0 126127 146 27 119 125 0 357 23 vmsppl 368 937 0 920 2 0 2 2 0 8 0 pdppl 4096 1883 0 1842 7 1 6 6 0 8 0 pvpl 32 354681 0 334354 211 16 195 201 0 265 29 pmappl 232 937 0 920 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 290 0 18 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(ffffffff82708ff0) 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 __sanitizer_cov_trace_cmp4(ffffffff828eb070,ffffffff828eb070) at __sanitizer_cov_trace_cmp4 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0x7f7ffffcb340, count: -6 ddb{0}> machine ddbcpu 1 Stopped at ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> trace ifa_update_broadaddr(ffff800000b4c800,ffff800000b26f00,ffff800022732740) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800022732730,ffff800000b4c800,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd80698dae38,80206913,ffff800022732730,ffff800020e09288) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd807ba261c8,80206913,ffff800022732730,ffff800020e09288) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e09288,ffff800022732848,ffff800022732890) at sys_ioctl+0x4a5 syscall(ffff800022732910) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800022732910) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xde7f8e93da0, count: -7