uvm_fault(0xfffffd807efffcf0, 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(0xfffffd807efffcf0, 0x0, 0, 1) -> e ifa_update_broadaddr(ffff800000af1800,ffff800000b84d00,ffff8000230d9890) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 end trace frame: 0xffff8000230d9740, count: 0 ddb{1}> trace ifa_update_broadaddr(ffff800000af1800,ffff800000b84d00,ffff8000230d9890) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff8000230d9880,ffff800000af1800,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd8066bf2978,80206913,ffff8000230d9880,ffff800020e09768) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd80669d43b0,80206913,ffff8000230d9880,ffff800020e09768) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e09768,ffff8000230d9998,ffff8000230d99e0) at sys_ioctl+0x4a5 syscall(ffff8000230d9a60) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230d9a60) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3384d3ec700, count: -7 ddb{1}> show registers rdi 0xffffffff81f2fafb ifa_update_broadaddr+0x1b rsi 0xe1 rbp 0xffff8000230d96a0 rbx 0x10 rdx 0xe2 rcx 0xffff800021ed4000 rax 0xffff800021ed4000 r8 0xffffffff8127e077 in_ioctl+0x387 r9 0x7 r10 0x3 r11 0xdddb2f35087a6af8 r12 0xffff8000230d9890 r13 0 r14 0xffff8000230d9890 r15 0 rip 0xffffffff81f2faff ifa_update_broadaddr+0x1f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000230d9660 ss 0x10 ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> show proc PROC (syz-executor.1) pid=247970 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e38880,0xffffffff828ba0c0 process=0xffff800023f7abd8 user=0xffff8000230d4000, vmspace=0xfffffd807efffcf0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 55516 287069 59767 0 2 0 syz-executor.1 *55516 247970 59767 0 7 0x4000000 syz-executor.1 92694 203390 0 0 3 0x14200 bored sosplice 55938 21251 0 0 3 0x14280 nfsidl nfsio 38721 282508 0 0 3 0x14280 nfsidl nfsio 39450 25204 0 0 3 0x14280 nfsidl nfsio 42969 446783 0 0 3 0x14280 nfsidl nfsio 38295 264533 0 0 3 0x14280 nfsidl nfsio 99491 169724 0 0 3 0x14280 nfsidl nfsio 81571 452763 0 0 3 0x14280 nfsidl nfsio 38267 103314 0 0 3 0x14280 nfsidl nfsio 21821 433365 0 0 3 0x14280 nfsidl nfsio 31499 195964 0 0 3 0x14280 nfsidl nfsio 38004 125384 0 0 3 0x14280 nfsidl nfsio 9321 397749 0 0 3 0x14280 nfsidl nfsio 66034 354548 0 0 3 0x14280 nfsidl nfsio 44827 507007 0 0 3 0x14280 nfsidl nfsio 98306 28976 0 0 3 0x14280 nfsidl nfsio 12459 54261 0 0 3 0x14280 nfsidl nfsio 22521 116190 0 0 3 0x14280 nfsidl nfsio 76858 515413 0 0 3 0x14280 nfsidl nfsio 17028 94531 0 0 3 0x14280 nfsidl nfsio 82801 305584 0 0 3 0x14280 nfsidl nfsio 59767 476497 12054 0 3 0x82 nanosleep syz-executor.1 59408 365843 12054 0 3 0x82 piperd syz-executor.0 12054 191222 87946 0 3 0x82 thrsleep syz-fuzzer 12054 36639 87946 0 3 0x4000082 nanosleep syz-fuzzer 12054 181113 87946 0 3 0x4000082 thrsleep syz-fuzzer 12054 435905 87946 0 7 0x4000002 syz-fuzzer 12054 29464 87946 0 3 0x4000082 thrsleep syz-fuzzer 12054 151920 87946 0 3 0x4000082 thrsleep syz-fuzzer 12054 170954 87946 0 3 0x4000082 thrsleep syz-fuzzer 12054 401149 87946 0 3 0x4000082 thrsleep syz-fuzzer 12054 490206 87946 0 3 0x4000082 kqread syz-fuzzer 12054 52577 87946 0 3 0x4000082 thrsleep syz-fuzzer 87946 507464 94319 0 3 0x10008a pause ksh 94319 5575 66095 0 3 0x92 select sshd 62414 207541 1 0 3 0x100083 ttyin getty 66095 399697 1 0 3 0x80 select sshd 91466 187231 440 74 3 0x100092 bpf pflogd 440 10972 1 0 3 0x80 netio pflogd 74616 462847 10618 73 3 0x100090 kqread syslogd 10618 285401 1 0 3 0x100082 netio syslogd 95126 489004 1 77 3 0x100090 poll dhclient 84052 170078 1 0 3 0x80 poll dhclient 42310 400040 0 0 3 0x14200 bored smr 36129 391606 0 0 2 0x14200 zerothread 10195 380764 0 0 3 0x14200 aiodoned aiodoned 53091 21450 0 0 3 0x14200 syncer update 26467 122888 0 0 3 0x14200 cleaner cleaner 16812 292421 0 0 3 0x14200 reaper reaper 72793 26454 0 0 3 0x14200 pgdaemon pagedaemon 57740 519202 0 0 3 0x14200 bored crynlk 86 359976 0 0 3 0x14200 bored crypto 58151 12745 0 0 3 0x40014200 acpi0 acpi0 62370 319046 0 0 3 0x40014200 idle1 43298 61220 0 0 3 0x14200 bored softnet 87575 415417 0 0 3 0x14200 bored systqmp 73194 517943 0 0 3 0x14200 bored systq 45758 244992 0 0 3 0x40014200 bored softclock 58313 89072 0 0 3 0x40014200 idle0 1 137923 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 55516 (syz-executor.1) thread 0xffff800020e09768 (247970) exclusive rwlock netlock r = 0 (0xffffffff8277f198) #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 (0xffffffff828df750) #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 9524 6441K 7407K 78643K 13997 0 pcb 13 8K 8K 78643K 119 0 rtable 114 7K 10K 78643K 545 0 ifaddr 87 18K 19K 78643K 195 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 61 0 ioctlops 0 0K 4K 78643K 1588 0 iov 0 0K 16K 78643K 624 0 mount 1 1K 1K 78643K 1 0 vnodes 1225 77K 77K 78643K 2046 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 17 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 223 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 855 0 sigio 0 0K 0K 78643K 14 0 proc 61 63K 83K 78643K 497 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 45 0 in_multi 77 3K 3K 78643K 147 0 ether_multi 1 0K 0K 78643K 16 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 243 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 147 89K 89K 78643K 3627 0 UVM aobj 30 6K 6K 78643K 53 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 104 0 NDP 12 0K 0K 78643K 29 0 temp 128 3876K 3940K 78643K 13243 0 kqueue 3 4K 12K 78643K 24 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 12 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 51 0 49 1 0 1 1 0 8 0 rtentry 112 82 0 44 2 0 2 2 0 8 0 unpcb 120 323 0 312 1 0 1 1 0 8 0 syncache 264 9 0 9 3 3 0 1 0 8 0 tcpqe 32 445 0 445 1 1 0 1 0 8 0 tcpcb 544 306 0 301 2 1 1 2 0 8 0 inpcb 296 815 0 806 5 3 2 2 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 14 0 8 1 0 1 1 0 8 0 pkpcb 40 8 0 8 3 2 1 1 0 8 1 ppxss 1128 5 0 5 4 3 1 1 0 8 1 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 8 0 8 4 3 1 1 0 482 1 pffrnode 88 8 0 8 4 3 1 1 0 8 1 pffrent 40 231 0 231 4 3 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 75 0 68 2 1 1 2 0 8 0 pfstitem 24 59 0 33 1 0 1 1 0 8 0 pfstkey 112 61 0 35 2 0 2 2 0 8 0 pfstate 328 59 0 33 5 1 4 5 0 8 0 pfrule 1360 40 0 29 3 2 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 326 0 122 13 0 13 13 0 8 0 art_table 32 327 0 122 2 0 2 2 0 8 0 art_node 16 72 0 43 1 0 1 1 0 8 0 sysvmsgpl 40 62 0 43 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 215 0 205 1 0 1 1 0 8 0 shmpl 112 50 0 23 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2436 0 1034 89 1 88 89 0 8 0 ffsino 272 2436 0 1034 95 1 94 94 0 8 0 nchpl 144 4219 0 2608 61 1 60 61 0 8 0 uvmvnodes 72 3239 0 0 59 0 59 59 0 8 0 vnodes 208 3239 0 0 171 0 171 171 0 8 0 namei 1024 11429 0 11429 3 2 1 1 0 8 1 percpumem 16 41 0 9 1 0 1 1 0 8 0 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 560 8 0 2 2 1 1 1 0 8 0 pfiaddrpl 120 24 0 19 1 0 1 1 0 8 0 scxspl 192 10822 0 10822 8 7 1 7 0 8 1 plimitpl 152 70 0 62 1 0 1 1 0 8 0 sigapl 424 1091 0 1039 6 0 6 6 0 8 0 futexpl 56 13516 0 13516 2 1 1 1 0 8 1 knotepl 112 87 0 68 1 0 1 1 0 8 0 kqueuepl 144 102 0 99 1 0 1 1 0 8 0 pipepl 304 232 0 222 4 3 1 3 0 8 0 fdescpl 496 1055 0 1039 3 0 3 3 0 8 0 filepl 152 6325 0 6223 9 4 5 7 0 8 1 lockfpl 104 175 0 174 1 0 1 1 0 8 0 lockfspl 48 67 0 66 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 31 0 19 1 0 1 1 0 8 0 ucredpl 96 503 0 494 1 0 1 1 0 8 0 zombiepl 144 1039 0 1039 2 1 1 1 0 8 1 processpl 992 1091 0 1039 8 1 7 7 0 8 0 procpl 624 2823 0 2761 6 0 6 6 0 8 1 sosppl 128 8 0 8 2 2 0 1 0 8 0 sockpl 400 1201 0 1179 7 4 3 5 0 8 0 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 12 0 0 2 0 2 2 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 188 0 0 23 0 23 23 0 8 0 mtagpl 96 54 0 0 2 0 2 2 0 8 0 mbufpl 256 351 0 0 20 0 20 20 0 8 0 bufpl 280 4480 0 136 311 0 311 311 0 8 0 anonpl 16 110432 0 93013 87 16 71 85 0 124 0 amapchunkpl 152 6680 0 6503 34 24 10 21 0 158 2 amappl16 192 4581 0 3661 62 15 47 57 0 8 0 amappl15 184 17 0 17 3 3 0 1 0 8 0 amappl14 176 32 0 26 1 0 1 1 0 8 0 amappl13 168 337 0 333 1 0 1 1 0 8 0 amappl12 160 321 0 318 1 0 1 1 0 8 0 amappl11 152 55 0 40 1 0 1 1 0 8 0 amappl10 144 24 0 18 1 0 1 1 0 8 0 amappl9 136 901 0 898 1 0 1 1 0 8 0 amappl8 128 901 0 862 2 0 2 2 0 8 0 amappl7 120 118 0 106 1 0 1 1 0 8 0 amappl6 112 24 0 21 1 0 1 1 0 8 0 amappl5 104 656 0 639 1 0 1 1 0 8 0 amappl4 96 802 0 769 1 0 1 1 0 8 0 amappl3 88 451 0 445 1 0 1 1 0 8 0 amappl2 80 7574 0 7502 2 0 2 2 0 8 0 amappl1 72 39408 0 38968 23 13 10 18 0 8 0 amappl 80 3073 0 3018 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 52 0 23 1 0 1 1 0 8 0 uaddrrnd 24 1063 0 1041 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1063 0 1041 1 0 1 1 0 8 0 vmmpekpl 168 11623 0 11582 2 0 2 2 0 8 0 vmmpepl 168 141513 0 139388 133 38 95 117 0 357 0 vmsppl 368 1062 0 1041 2 0 2 2 0 8 0 pdppl 4096 2133 0 2088 7 1 6 6 0 8 0 pvpl 32 344925 0 324509 208 37 171 204 0 265 5 pmappl 232 1062 0 1041 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 283 0 14 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(ffffffff8279aff0) 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: 0xc0039c4ae8, count: -3 ddb{0}> machine ddbcpu 1 Stopped at ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> trace ifa_update_broadaddr(ffff800000af1800,ffff800000b84d00,ffff8000230d9890) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff8000230d9880,ffff800000af1800,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd8066bf2978,80206913,ffff8000230d9880,ffff800020e09768) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd80669d43b0,80206913,ffff8000230d9880,ffff800020e09768) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e09768,ffff8000230d9998,ffff8000230d99e0) at sys_ioctl+0x4a5 syscall(ffff8000230d9a60) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230d9a60) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3384d3ec700, count: -7