uvm_fault(0xfffffd807efffb80, 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(0xfffffd807efffb80, 0x0, 0, 1) -> e ifa_update_broadaddr(ffff800000ac6000,ffff800000b5b700,ffff800021f85300) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 end trace frame: 0xffff800021f851b0, count: 0 ddb{1}> trace ifa_update_broadaddr(ffff800000ac6000,ffff800000b5b700,ffff800021f85300) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800021f852f0,ffff800000ac6000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd806f686320,80206913,ffff800021f852f0,ffff800020e37768) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd806ca4fac0,80206913,ffff800021f852f0,ffff800020e37768) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e37768,ffff800021f85408,ffff800021f85450) at sys_ioctl+0x4a5 syscall(ffff800021f854d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f854d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfbfad257aa0, count: -7 ddb{1}> show registers rdi 0xffffffff810a5ffb ifa_update_broadaddr+0x1b rsi 0x28b rbp 0xffff800021f85110 rbx 0x10 rdx 0x28c rcx 0xffff800020ee1000 rax 0xffff800020ee1000 r8 0xffffffff81842e27 in_ioctl+0x387 r9 0x7 r10 0x3 r11 0x4fb1e17d45a9ca58 r12 0xffff800021f85300 r13 0 r14 0xffff800021f85300 r15 0 rip 0xffffffff810a5fff ifa_update_broadaddr+0x1f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021f850d0 ss 0x10 ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> show proc PROC (syz-executor.0) pid=445805 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=74, nice=20 forw=0xffffffffffffffff, list=0xffff800020e38d58,0xffff800020ea23b0 process=0xffff800021f4e410 user=0xffff800021f80000, vmspace=0xfffffd807efffb80 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 96024 216309 9674 0 7 0 syz-executor.1 65331 106822 67084 0 2 0 syz-executor.0 *65331 445805 67084 0 7 0x4000000 syz-executor.0 9674 252254 28723 0 3 0x82 nanosleep syz-executor.1 83426 221997 0 0 3 0x14200 bored sosplice 60707 185843 0 0 3 0x14280 nfsidl nfsio 7895 413859 0 0 3 0x14280 nfsidl nfsio 70442 517672 0 0 3 0x14280 nfsidl nfsio 32602 443447 0 0 3 0x14280 nfsidl nfsio 93591 455239 0 0 3 0x14280 nfsidl nfsio 34289 23711 0 0 3 0x14280 nfsidl nfsio 26136 448863 0 0 3 0x14280 nfsidl nfsio 45523 501297 0 0 3 0x14280 nfsidl nfsio 54691 272876 0 0 3 0x14280 nfsidl nfsio 38421 282238 0 0 3 0x14280 nfsidl nfsio 29651 490233 0 0 3 0x14280 nfsidl nfsio 40394 424728 0 0 3 0x14280 nfsidl nfsio 81640 486156 0 0 3 0x14280 nfsidl nfsio 82731 85924 0 0 3 0x14280 nfsidl nfsio 23751 184064 0 0 3 0x14280 nfsidl nfsio 40406 29992 0 0 3 0x14280 nfsidl nfsio 74130 175534 0 0 3 0x14280 nfsidl nfsio 14368 268792 0 0 3 0x14280 nfsidl nfsio 31412 458414 0 0 3 0x14280 nfsidl nfsio 75818 325736 0 0 3 0x14280 nfsidl nfsio 67084 86409 28723 0 3 0x82 nanosleep syz-executor.0 28723 16097 40780 0 3 0x82 kqread syz-fuzzer 28723 116777 40780 0 3 0x4000082 nanosleep syz-fuzzer 28723 236815 40780 0 3 0x4000082 thrsleep syz-fuzzer 28723 435194 40780 0 3 0x4000082 thrsleep syz-fuzzer 28723 295761 40780 0 3 0x4000082 thrsleep syz-fuzzer 28723 265735 40780 0 3 0x4000082 thrsleep syz-fuzzer 28723 39050 40780 0 3 0x4000082 thrsleep syz-fuzzer 28723 21195 40780 0 3 0x4000082 thrsleep syz-fuzzer 28723 45009 40780 0 3 0x4000082 thrsleep syz-fuzzer 28723 86195 40780 0 3 0x4000082 thrsleep syz-fuzzer 40780 496139 70168 0 3 0x10008a pause ksh 70168 102534 15269 0 3 0x92 select sshd 97446 14662 1 0 3 0x100083 ttyopn getty 15269 504723 1 0 3 0x80 select sshd 84175 98344 47274 74 3 0x100092 bpf pflogd 47274 172024 1 0 3 0x80 netio pflogd 42976 519690 89574 73 3 0x100090 kqread syslogd 89574 512508 1 0 3 0x100082 netio syslogd 38236 241899 1 77 3 0x100090 poll dhclient 76923 78457 1 0 3 0x80 poll dhclient 67272 106413 0 0 3 0x14200 bored smr 13688 494768 0 0 2 0x14200 zerothread 44210 95255 0 0 3 0x14200 aiodoned aiodoned 67426 42817 0 0 3 0x14200 syncer update 92720 189608 0 0 3 0x14200 cleaner cleaner 56249 276204 0 0 3 0x14200 reaper reaper 39187 227539 0 0 3 0x14200 pgdaemon pagedaemon 57378 335227 0 0 3 0x14200 bored crynlk 12360 44992 0 0 3 0x14200 bored crypto 17394 155161 0 0 3 0x40014200 acpi0 acpi0 61950 72586 0 0 3 0x40014200 idle1 84806 463479 0 0 3 0x14200 bored softnet 63028 226027 0 0 3 0x14200 bored systqmp 7644 287657 0 0 3 0x14200 bored systq 60877 357089 0 0 3 0x40014200 bored softclock 28571 412048 0 0 3 0x40014200 idle0 1 155531 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 65331 (syz-executor.0) thread 0xffff800020e37768 (445805) exclusive rwlock netlock r = 0 (0xffffffff826ebbd8) #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 (0xffffffff828c8768) #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 9515 6416K 6986K 78643K 11180 0 pcb 13 8K 8K 78643K 67 0 rtable 107 4K 8K 78643K 456 0 ifaddr 72 14K 15K 78643K 150 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 59 0 ioctlops 0 0K 4K 78643K 1533 0 iov 0 0K 16K 78643K 32 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1408 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 56 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 353 0 sigio 0 0K 0K 78643K 2 0 proc 63 63K 83K 78643K 501 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 286 0 in_multi 54 3K 3K 78643K 189 0 ether_multi 1 0K 0K 78643K 9 0 mrt 0 0K 0K 78643K 3 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 234 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 121 39K 48K 78643K 2028 0 UVM aobj 11 2K 2K 78643K 13 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 40 0 NDP 13 0K 0K 78643K 38 0 temp 96 3857K 3932K 78643K 13026 0 kqueue 3 4K 12K 78643K 20 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 5 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 41 0 39 1 0 1 1 0 8 0 rtentry 112 86 0 45 2 0 2 2 0 8 0 unpcb 120 197 0 187 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 12 0 12 1 1 0 1 0 8 0 tcpcb 544 97 0 92 2 1 1 2 0 8 0 inpcb 296 684 0 674 5 3 2 3 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 26 0 19 1 0 1 1 0 8 0 swfcl 56 2 0 0 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 34 0 34 2 2 0 1 0 8 0 pfstitem 24 29 0 3 1 0 1 1 0 8 0 pfstkey 112 29 0 3 1 0 1 1 0 8 0 pfstate 328 29 0 3 3 0 3 3 0 8 0 pfrule 1360 30 0 25 2 1 1 2 0 8 0 art_heap8 4096 2 0 1 2 1 1 2 0 8 0 art_heap4 256 554 0 289 18 1 17 17 0 8 0 art_table 32 556 0 290 3 0 3 3 0 8 0 art_node 16 84 0 46 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 5 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 50 0 40 1 0 1 1 0 8 0 shmpl 112 10 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1868 0 464 90 2 88 89 0 8 0 ffsino 272 1868 0 464 95 1 94 95 0 8 0 nchpl 144 2587 0 991 60 0 60 60 0 8 0 uvmvnodes 72 2049 0 0 38 0 38 38 0 8 0 vnodes 208 2049 0 0 108 0 108 108 0 8 0 namei 1024 7139 0 7139 4 3 1 1 0 8 1 percpumem 16 40 0 8 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 10 0 10 2 2 0 1 0 8 0 scxspl 192 7437 0 7437 10 9 1 7 0 8 1 plimitpl 152 30 0 22 1 0 1 1 0 8 0 sigapl 424 586 0 533 6 0 6 6 0 8 0 futexpl 56 4728 0 4728 3 2 1 1 0 8 1 knotepl 112 96 0 77 1 0 1 1 0 8 0 kqueuepl 144 54 0 52 1 0 1 1 0 8 0 pipepl 304 99 0 89 2 1 1 1 0 8 0 fdescpl 496 550 0 533 3 0 3 3 0 8 0 filepl 152 3209 0 3106 6 1 5 5 0 8 1 lockfpl 104 77 0 76 1 0 1 1 0 8 0 lockfspl 48 29 0 28 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 21 0 10 1 0 1 1 0 8 0 ucredpl 96 229 0 220 1 0 1 1 0 8 0 zombiepl 144 533 0 533 3 2 1 1 0 8 1 processpl 992 586 0 533 7 0 7 7 0 8 0 procpl 624 1227 0 1164 7 1 6 6 0 8 1 srpgc 64 2 0 2 1 1 0 1 0 8 0 sosppl 128 4 0 4 2 1 1 1 0 8 1 sockpl 400 926 0 904 8 4 4 4 0 8 1 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 10 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 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 168 0 0 20 0 20 20 0 8 0 mtagpl 96 30 0 0 1 0 1 1 0 8 0 mbufpl 256 211 0 0 11 0 11 11 0 8 0 bufpl 280 3909 0 136 270 0 270 270 0 8 0 anonpl 16 65619 0 49167 79 11 68 77 0 124 0 amapchunkpl 152 2975 0 2824 13 6 7 11 0 158 0 amappl16 192 2127 0 1212 49 3 46 48 0 8 0 amappl15 184 157 0 155 2 1 1 1 0 8 0 amappl14 176 97 0 91 1 0 1 1 0 8 0 amappl13 168 35 0 32 2 1 1 1 0 8 0 amappl12 160 20 0 18 2 1 1 1 0 8 0 amappl11 152 211 0 194 1 0 1 1 0 8 0 amappl10 144 177 0 169 1 0 1 1 0 8 0 amappl9 136 388 0 386 1 0 1 1 0 8 0 amappl8 128 377 0 344 2 0 2 2 0 8 0 amappl7 120 279 0 265 1 0 1 1 0 8 0 amappl6 112 173 0 168 2 1 1 1 0 8 0 amappl5 104 375 0 358 1 0 1 1 0 8 0 amappl4 96 577 0 545 1 0 1 1 0 8 0 amappl3 88 123 0 118 1 0 1 1 0 8 0 amappl2 80 3376 0 3302 3 1 2 2 0 8 0 amappl1 72 21460 0 21012 23 13 10 18 0 8 0 amappl 80 1482 0 1435 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 12 0 2 1 0 1 1 0 8 0 uaddrrnd 24 552 0 533 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 552 0 533 1 0 1 1 0 8 0 vmmpekpl 168 7737 0 7691 3 0 3 3 0 8 0 vmmpepl 168 74255 0 72103 149 53 96 127 0 357 0 vmsppl 368 551 0 533 2 0 2 2 0 8 0 pdppl 4096 1111 0 1068 7 1 6 6 0 8 0 pvpl 32 212282 0 192517 188 25 163 184 0 265 0 pmappl 232 551 0 533 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 276 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(ffffffff827a2ff0) 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(ffffffff828c8560,ffffffff828c8560) at __sanitizer_cov_trace_cmp4+0xb sys/dev/kcov.c:134 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __sanitizer_cov_trace_cmp4(9e358,9e359) at __sanitizer_cov_trace_cmp4+0x62 sys/dev/kcov.c:137 __mp_lock(ffffffff828c8560) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c8560) at __mp_lock+0x139 sys/kern/kern_lock.c:147 syscall(ffff800021f8be00) at syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline] syscall(ffff800021f8be00) at syscall+0x400 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcb9f0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at ifa_update_broadaddr+0x1f: movzbl 0(%r15),%r12d ddb{1}> trace ifa_update_broadaddr(ffff800000ac6000,ffff800000b5b700,ffff800021f85300) at ifa_update_broadaddr+0x1f sys/net/if.c:3070 in_ioctl(80206913,ffff800021f852f0,ffff800000ac6000,1) at in_ioctl+0x5eb sys/netinet/in.c:320 ifioctl(fffffd806f686320,80206913,ffff800021f852f0,ffff800020e37768) at ifioctl+0xe70 sys/net/if.c:2282 soo_ioctl(fffffd806ca4fac0,80206913,ffff800021f852f0,ffff800020e37768) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800020e37768,ffff800021f85408,ffff800021f85450) at sys_ioctl+0x4a5 syscall(ffff800021f854d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f854d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xfbfad257aa0, count: -7