uvm_fault(0xfffffd807ab8ce70, 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(0xfffffd807ab8ce70, 0x0, 0, 1) -> e ifa_update_broadaddr(ffff800000af6000,ffff800000b58100,ffff800021f1cf90) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 end trace frame: 0xffff800021f1ce40, count: 0 ddb{1}> trace ifa_update_broadaddr(ffff800000af6000,ffff800000b58100,ffff800021f1cf90) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800021f1cf80,ffff800000af6000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd806c8d8e20,80206913,ffff800021f1cf80,ffff800020e039d8) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd80677fbef0,80206913,ffff800021f1cf80,ffff800020e039d8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e039d8,ffff800021f1d098,ffff800021f1d0e0) at sys_ioctl+0x4a5 syscall(ffff800021f1d160) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f1d160) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x23acd12ba80, count: -7 ddb{1}> show registers rdi 0xffffffff81c9872b ifa_update_broadaddr+0x1b rsi 0x258 rbp 0xffff800021f1cda0 rbx 0x10 rdx 0x259 rcx 0xffff800020ee1000 rax 0xffff800020ee1000 r8 0xffffffff81185317 in_ioctl+0x387 r9 0x7 r10 0x3 r11 0x115deb6f94f3ae06 r12 0xffff800021f1cf90 r13 0 r14 0xffff800021f1cf90 r15 0 rip 0xffffffff81c9872f ifa_update_broadaddr+0x1f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021f1cd60 ss 0x10 ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> show proc PROC (syz-executor.0) pid=315505 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020e034f8,0xffffffff828ba3d8 process=0xffff800020e99760 user=0xffff800021f18000, vmspace=0xfffffd807ab8ce70 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 72781 462272 35279 0 2 0 syz-executor.0 *72781 315505 35279 0 7 0x4000000 syz-executor.0 67052 330576 68605 0 2 0 syz-executor.1 67052 243284 68605 0 7 0x4000000 syz-executor.1 67052 50090 68605 0 3 0x4000080 fsleep syz-executor.1 47786 445267 0 0 3 0x14200 bored sosplice 68605 279202 54232 0 3 0x82 nanosleep syz-executor.1 35279 315195 54232 0 3 0x82 nanosleep syz-executor.0 54232 349846 56725 0 3 0x82 thrsleep syz-fuzzer 54232 310418 56725 0 3 0x4000082 thrsleep syz-fuzzer 54232 226828 56725 0 3 0x4000082 thrsleep syz-fuzzer 54232 297325 56725 0 3 0x4000082 thrsleep syz-fuzzer 54232 365461 56725 0 3 0x4000082 thrsleep syz-fuzzer 54232 222538 56725 0 3 0x4000082 kqread syz-fuzzer 54232 7578 56725 0 3 0x4000082 thrsleep syz-fuzzer 54232 484578 56725 0 3 0x4000082 thrsleep syz-fuzzer 54232 131753 56725 0 3 0x4000082 thrsleep syz-fuzzer 54232 173041 56725 0 3 0x4000082 thrsleep syz-fuzzer 56725 21268 12380 0 3 0x10008a pause ksh 12380 475521 56952 0 3 0x92 select sshd 35116 221167 1 0 3 0x100083 ttyin getty 56952 308739 1 0 3 0x80 select sshd 15258 406152 27941 74 3 0x100092 bpf pflogd 27941 336084 1 0 3 0x80 netio pflogd 49910 304693 90724 73 3 0x100090 kqread syslogd 90724 269066 1 0 3 0x100082 netio syslogd 74034 108690 1 77 3 0x100090 poll dhclient 85959 223845 1 0 3 0x80 poll dhclient 91455 219868 0 0 3 0x14200 bored smr 39199 201561 0 0 2 0x14200 zerothread 11202 276260 0 0 3 0x14200 aiodoned aiodoned 41901 518582 0 0 3 0x14200 syncer update 93428 216063 0 0 3 0x14200 cleaner cleaner 87578 84948 0 0 3 0x14200 reaper reaper 77246 376354 0 0 3 0x14200 pgdaemon pagedaemon 17411 514724 0 0 3 0x14200 bored crynlk 81153 101762 0 0 3 0x14200 bored crypto 97896 97428 0 0 3 0x40014200 acpi0 acpi0 24052 40308 0 0 3 0x40014200 idle1 30602 308676 0 0 3 0x14200 bored softnet 55915 39461 0 0 3 0x14200 bored systqmp 62136 406107 0 0 3 0x14200 bored systq 73535 373274 0 0 3 0x40014200 bored softclock 71391 114289 0 0 3 0x40014200 idle0 1 192303 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 72781 (syz-executor.0) thread 0xffff800020e039d8 (315505) 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 9519 6424K 7370K 78643K 13085 0 pcb 13 8K 8K 78643K 114 0 rtable 152 20K 22K 78643K 959 0 ifaddr 92 19K 19K 78643K 191 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 61 0 ioctlops 0 0K 4K 78643K 1745 0 iov 0 0K 16K 78643K 77 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1852 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 10 1K 1K 78643K 23 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 703 0 sigio 0 0K 0K 78643K 10 0 proc 65 63K 95K 78643K 496 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 33 0 in_multi 67 3K 3K 78643K 183 0 ether_multi 1 0K 0K 78643K 16 0 mrt 0 0K 0K 78643K 6 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 248 0 pfkey data 0 0K 1K 78643K 2 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 87K 87K 78643K 3269 0 UVM aobj 30 2K 2K 78643K 30 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 77 0 NDP 12 0K 0K 78643K 40 0 temp 116 3879K 3944K 78643K 23940 0 kqueue 3 4K 8K 78643K 32 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 14 0 6 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 47 0 45 1 0 1 1 0 8 0 rtentry 112 102 0 56 2 0 2 2 0 8 0 unpcb 120 484 0 473 3 2 1 3 0 8 0 syncache 264 11 0 11 5 5 0 1 0 8 0 tcpqe 32 196 0 196 4 4 0 1 0 8 0 tcpcb 544 247 0 242 1 0 1 1 0 8 0 inpcb 296 1344 0 1336 16 14 2 2 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 26 0 21 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 2 0 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pffrag 232 5 0 5 1 1 0 1 0 482 0 pffrnode 88 5 0 5 1 1 0 1 0 8 0 pffrent 40 182 0 182 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 pfrke_plain 160 132 0 124 1 0 1 1 0 8 0 pfrktable 1344 251 0 236 4 2 2 2 0 8 0 pfstitem 24 16 0 14 1 0 1 1 0 8 0 pfstkey 112 16 0 14 1 0 1 1 0 8 0 pfstate 328 16 0 14 2 1 1 2 0 8 0 pfrule 1360 114 0 84 5 2 3 3 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 318 0 118 13 0 13 13 0 8 0 art_table 32 319 0 118 2 0 2 2 0 8 0 art_node 16 99 0 56 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 8 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 10 0 2 1 0 1 1 0 8 0 shmpl 112 27 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2304 0 905 89 0 89 89 0 8 0 ffsino 272 2304 0 905 94 0 94 94 0 8 0 nchpl 144 3567 0 1957 60 0 60 60 0 8 0 rtmask 32 252 0 250 1 0 1 1 0 8 0 uvmvnodes 72 2903 0 0 53 0 53 53 0 8 0 vnodes 208 2903 0 0 153 0 153 153 0 8 0 namei 1024 10175 0 10175 2 1 1 1 0 8 1 percpumem 16 41 0 9 1 0 1 1 0 8 0 vcpupl 1984 8 0 0 1 0 1 1 0 8 0 vmpool 560 11 0 3 1 0 1 1 0 8 0 pfiaddrpl 120 81 0 70 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 10436 0 10436 9 8 1 6 0 8 1 plimitpl 152 55 0 47 1 0 1 1 0 8 0 sigapl 424 919 0 886 4 0 4 4 0 8 0 futexpl 56 11048 0 11047 1 0 1 1 0 8 0 knotepl 112 95 0 76 1 0 1 1 0 8 0 kqueuepl 144 88 0 84 1 0 1 1 0 8 0 pipepl 304 171 0 161 4 3 1 2 0 8 0 fdescpl 496 903 0 886 3 0 3 3 0 8 0 filepl 152 6069 0 5965 7 2 5 7 0 8 1 lockfpl 104 132 0 131 1 0 1 1 0 8 0 lockfspl 48 46 0 45 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 96 637 0 628 1 0 1 1 0 8 0 zombiepl 144 886 0 886 1 0 1 1 0 8 1 processpl 992 919 0 886 5 0 5 5 0 8 0 procpl 624 2481 0 2436 4 0 4 4 0 8 0 sosppl 128 6 0 6 2 2 0 1 0 8 0 sockpl 400 1887 0 1866 15 11 4 8 0 8 1 mcl64k 65536 259 0 0 33 29 4 33 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 14 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 224 0 0 26 2 24 26 0 8 0 mtagpl 96 320 0 0 8 0 8 8 0 8 0 mbufpl 256 1071 0 0 61 0 61 61 0 8 0 bufpl 280 4711 0 132 328 0 328 328 0 8 0 anonpl 16 93024 0 75563 91 19 72 87 0 124 0 amapchunkpl 152 5638 0 5477 32 24 8 20 0 158 0 amappl16 192 4039 0 3068 67 18 49 59 0 8 0 amappl15 184 4 0 3 2 1 1 1 0 8 0 amappl14 176 420 0 414 1 0 1 1 0 8 0 amappl13 168 300 0 294 1 0 1 1 0 8 0 amappl12 160 10 0 9 1 0 1 1 0 8 0 amappl11 152 456 0 439 1 0 1 1 0 8 0 amappl10 144 25 0 19 1 0 1 1 0 8 0 amappl9 136 385 0 384 1 0 1 1 0 8 0 amappl8 128 341 0 314 1 0 1 1 0 8 0 amappl7 120 116 0 105 1 0 1 1 0 8 0 amappl6 112 428 0 422 1 0 1 1 0 8 0 amappl5 104 415 0 398 1 0 1 1 0 8 0 amappl4 96 1169 0 1134 2 1 1 2 0 8 0 amappl3 88 111 0 106 1 0 1 1 0 8 0 amappl2 80 6226 0 6148 2 0 2 2 0 8 0 amappl1 72 29630 0 29163 23 13 10 18 0 8 0 amappl 80 2742 0 2690 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 29 0 0 1 0 1 1 0 8 0 uaddrrnd 24 914 0 889 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 914 0 889 1 0 1 1 0 8 0 vmmpekpl 168 9768 0 9724 3 0 3 3 0 8 0 vmmpepl 168 116858 0 114592 141 41 100 112 0 357 1 vmsppl 368 913 0 889 3 0 3 3 0 8 0 pdppl 4096 1835 0 1786 8 1 7 7 0 8 0 pvpl 32 319557 0 298951 231 64 167 198 0 265 0 pmappl 232 913 0 889 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 364 0 48 10 0 10 10 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 __sanitizer_cov_trace_cmp4(ffffffff828bb610,ffffffff828bb610) at __sanitizer_cov_trace_cmp4 vn_ioctl(fffffd806ca2c308,40287401,ffff800021f09890,ffff800020e03018) at vn_ioctl+0x40 sys/kern/vfs_vnops.c:514 sys_ioctl(ffff800020e03018,ffff800021f099a0,ffff800021f099f0) at sys_ioctl+0x4a5 syscall(ffff800021f09a70) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f09a70) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfb80e466950, count: -8 ddb{0}> machine ddbcpu 1 Stopped at ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> trace ifa_update_broadaddr(ffff800000af6000,ffff800000b58100,ffff800021f1cf90) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800021f1cf80,ffff800000af6000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd806c8d8e20,80206913,ffff800021f1cf80,ffff800020e039d8) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd80677fbef0,80206913,ffff800021f1cf80,ffff800020e039d8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e039d8,ffff800021f1d098,ffff800021f1d0e0) at sys_ioctl+0x4a5 syscall(ffff800021f1d160) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f1d160) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x23acd12ba80, count: -7