uvm_fault(0xfffffd807effea10, 0x11, 0, 1) -> e kernel: page fault trap, code=0 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xfffffd807effea10, 0x11, 0, 1) -> e in_delmulti(5) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff8000241a9200, count: 0 ddb{1}> trace in_delmulti(5) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000af9200) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000af5000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_setrdomain(ffff800000af5000,6) at if_setrdomain+0x19a sys/net/if.c:1778 ifioctl(fffffd80663c41b8,8020699f,ffff8000241a9400,ffff8000241973f8) at ifioctl+0x16ad sys/net/if.c:2038 soo_ioctl(fffffd806441f5f8,8020699f,ffff8000241a9400,ffff8000241973f8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff8000241973f8,ffff8000241a9518,ffff8000241a9560) at sys_ioctl+0x4a5 syscall(ffff8000241a95e0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000241a95e0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a61c643300, count: -9 ddb{1}> show registers rdi 0xffff800023103000 rsi 0x2cc66 acpi_pdirpa+0x18ace rbp 0xffff8000241a91b0 rbx 0 rdx 0xffff800023103000 rcx 0x2cc65 acpi_pdirpa+0x18acd rax 0xffffffff8120951d in_delmulti+0x8d r8 0xffff800000af9200 r9 0xffffffff8158de33 rt_ifa_purge+0x153 r10 0x5 r11 0xe051bff57db94b18 r12 0 r13 0x3 r14 0x5 r15 0x1 rip 0xffffffff8120951d in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000241a9150 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> show proc PROC (syz-executor.1) pid=481217 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800024196f08,0xffffffff828c6de0 process=0xffff8000241823f8 user=0xffff8000241a4000, vmspace=0xfffffd807effea10 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 64453 208295 87546 0 2 0 syz-executor.1 *64453 481217 87546 0 7 0x4000000 syz-executor.1 67262 357126 16840 0 7 0 syz-executor.0 67262 523462 16840 0 3 0x4000080 kqread syz-executor.0 65460 498426 0 0 3 0x14280 nfsidl nfsio 3346 295846 0 0 3 0x14280 nfsidl nfsio 31575 147712 0 0 3 0x14280 nfsidl nfsio 8899 455591 0 0 3 0x14280 nfsidl nfsio 76939 176902 0 0 3 0x14280 nfsidl nfsio 78997 493031 0 0 3 0x14280 nfsidl nfsio 33426 376426 0 0 3 0x14280 nfsidl nfsio 90963 31382 0 0 3 0x14280 nfsidl nfsio 11277 349378 0 0 3 0x14280 nfsidl nfsio 77464 180510 0 0 3 0x14280 nfsidl nfsio 43307 259611 0 0 3 0x14280 nfsidl nfsio 57717 515400 0 0 3 0x14280 nfsidl nfsio 46010 60861 0 0 3 0x14280 nfsidl nfsio 73920 252432 0 0 3 0x14280 nfsidl nfsio 53740 209269 0 0 3 0x14280 nfsidl nfsio 99650 224775 0 0 3 0x14280 nfsidl nfsio 80705 257051 0 0 3 0x14280 nfsidl nfsio 48363 372835 0 0 3 0x14280 nfsidl nfsio 55325 51782 0 0 3 0x14280 nfsidl nfsio 94102 350624 0 0 3 0x14280 nfsidl nfsio 97994 137886 0 0 3 0x14200 bored sosplice 87546 329085 99005 0 3 0x82 nanosleep syz-executor.1 16840 152810 99005 0 3 0x82 nanosleep syz-executor.0 99005 376990 15219 0 3 0x82 kqread syz-fuzzer 99005 282389 15219 0 3 0x4000082 thrsleep syz-fuzzer 99005 7659 15219 0 3 0x4000082 thrsleep syz-fuzzer 99005 287320 15219 0 3 0x4000082 thrsleep syz-fuzzer 99005 487505 15219 0 3 0x4000082 thrsleep syz-fuzzer 99005 406132 15219 0 3 0x4000082 thrsleep syz-fuzzer 99005 138672 15219 0 3 0x4000082 thrsleep syz-fuzzer 99005 373114 15219 0 3 0x4000082 thrsleep syz-fuzzer 99005 174532 15219 0 3 0x4000082 thrsleep syz-fuzzer 15219 333169 53004 0 3 0x10008a pause ksh 53004 503905 95306 0 3 0x92 select sshd 55720 411042 1 0 3 0x100083 ttyin getty 95306 370277 1 0 3 0x80 select sshd 23224 29659 54529 74 3 0x100092 bpf pflogd 54529 162608 1 0 3 0x80 netio pflogd 49120 381593 35873 73 3 0x100090 kqread syslogd 35873 515459 1 0 3 0x100082 netio syslogd 37381 68121 1 77 2 0x100090 dhclient 98948 335493 1 0 3 0x80 poll dhclient 89482 372562 0 0 3 0x14200 bored smr 74326 457441 0 0 2 0x14200 zerothread 6203 367695 0 0 3 0x14200 aiodoned aiodoned 67584 360138 0 0 3 0x14200 syncer update 18 413970 0 0 3 0x14200 cleaner cleaner 5324 169290 0 0 3 0x14200 reaper reaper 92980 121796 0 0 3 0x14200 pgdaemon pagedaemon 51122 503502 0 0 3 0x14200 bored crynlk 75106 55100 0 0 3 0x14200 bored crypto 26006 140611 0 0 3 0x40014200 acpi0 acpi0 7266 406502 0 0 3 0x40014200 idle1 73847 4200 0 0 3 0x14200 bored softnet 23958 455341 0 0 2 0x14200 systqmp 19538 331540 0 0 3 0x14200 bored systq 8798 108784 0 0 3 0x40014200 bored softclock 34963 512497 0 0 3 0x40014200 idle0 1 306425 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 64453 (syz-executor.1) thread 0xffff8000241973f8 (481217) exclusive rwlock netlock r = 0 (0xffffffff82780fa0) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 ifioctl+0x16a0 sys/net/if.c:2038 #2 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #3 sys_ioctl+0x4a5 #4 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8293cf68) #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 6432K 6807K 78643K 10989 0 pcb 13 8K 8K 78643K 58 0 rtable 115 10K 10K 78643K 411 0 ifaddr 96 19K 19K 78643K 185 0 counters 43 33K 34K 78643K 79 0 ioctlops 0 0K 4K 78643K 1552 0 iov 0 0K 16K 78643K 21 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1342 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 11 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 68 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 367 0 sigio 1 0K 0K 78643K 20 0 proc 61 63K 95K 78643K 460 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 24 0 in_multi 74 3K 3K 78643K 96 0 ether_multi 1 0K 0K 78643K 7 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 1K 78643K 233 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 165 42K 58K 78643K 2180 0 UVM aobj 16 5K 5K 78643K 22 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 31 0 NDP 13 0K 0K 78643K 36 0 temp 118 3873K 3941K 78643K 7147 0 kqueue 3 4K 9K 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 7 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 29 0 26 1 0 1 1 0 8 0 rtentry 112 50 0 16 2 0 2 2 0 8 0 unpcb 120 172 0 161 1 0 1 1 0 8 0 syncache 272 6 0 6 2 2 0 1 0 8 0 tcpqe 32 536 0 536 1 1 0 1 0 8 0 tcpcb 592 118 0 106 3 1 2 2 0 8 0 inpcb 296 390 0 382 4 2 2 2 0 8 1 nd6 48 7 0 0 1 0 1 1 0 8 0 pffrag 232 3 0 1 1 0 1 1 0 482 0 pffrnode 88 3 0 1 1 0 1 1 0 8 0 pffrent 40 10 0 8 1 0 1 1 0 8 0 pfosfp 40 847 0 423 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfrktable 1344 27 0 14 2 0 2 2 0 8 0 pfstitem 24 27 0 11 1 0 1 1 0 8 0 pfstkey 112 27 0 11 1 0 1 1 0 8 0 pfstate 328 27 0 11 3 0 3 3 0 8 0 pfrule 1360 32 0 21 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 255 0 71 14 1 13 14 0 8 0 art_table 32 256 0 71 2 0 2 2 0 8 0 art_node 16 49 0 18 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 2 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 66 0 56 1 0 1 1 0 8 0 shmpl 112 19 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1863 0 458 89 0 89 89 0 8 0 ffsino 272 1863 0 458 96 1 95 95 0 8 0 nchpl 144 2633 0 1030 61 0 61 61 0 8 0 uvmvnodes 72 1985 0 0 37 0 37 37 0 8 0 vnodes 208 1985 0 0 105 0 105 105 0 8 0 namei 1024 7410 0 7410 3 2 1 1 0 8 1 percpumem 16 50 0 18 1 0 1 1 0 8 0 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 560 3 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 8 0 2 1 0 1 1 0 8 0 scxspl 200 7353 0 7353 8 7 1 7 0 8 1 plimitpl 152 49 0 41 1 0 1 1 0 8 0 sigapl 424 603 0 550 6 0 6 6 0 8 0 futexpl 56 4800 0 4800 2 1 1 1 0 8 1 knotepl 112 82 0 62 1 0 1 1 0 8 0 kqueuepl 152 49 0 46 1 0 1 1 0 8 0 pipepl 304 133 0 122 3 1 2 2 0 8 1 fdescpl 496 567 0 550 3 0 3 3 0 8 0 filepl 152 3321 0 3213 7 2 5 5 0 8 0 lockfpl 104 50 0 49 1 0 1 1 0 8 0 lockfspl 48 18 0 17 1 0 1 1 0 8 0 sessionpl 120 18 0 7 1 0 1 1 0 8 0 pgrppl 48 22 0 11 1 0 1 1 0 8 0 ucredpl 96 273 0 264 1 0 1 1 0 8 0 zombiepl 144 550 0 550 3 2 1 1 0 8 1 processpl 1008 603 0 550 8 1 7 7 0 8 0 procpl 632 1379 0 1316 8 2 6 6 0 8 0 srpgc 72 3 0 0 1 0 1 1 0 8 0 sosppl 144 10 0 10 1 1 0 1 0 8 0 sockpl 400 593 0 571 6 3 3 4 0 8 0 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 223 0 0 27 0 27 27 0 8 0 mtagpl 96 11 0 0 1 0 1 1 0 8 0 mbufpl 256 359 0 0 22 0 22 22 0 8 0 bufpl 280 3839 0 130 265 0 265 265 0 8 0 anonpl 16 73743 0 55273 91 13 78 90 0 124 3 amapchunkpl 152 4041 0 3711 27 0 27 27 0 158 12 amappl16 192 2695 0 1848 56 13 43 54 0 8 0 amappl15 184 2 0 1 1 0 1 1 0 8 0 amappl14 176 4 0 2 1 0 1 1 0 8 0 amappl13 168 365 0 357 1 0 1 1 0 8 0 amappl12 160 190 0 185 1 0 1 1 0 8 0 amappl11 152 53 0 37 1 0 1 1 0 8 0 amappl10 144 25 0 20 1 0 1 1 0 8 0 amappl9 136 366 0 364 1 0 1 1 0 8 0 amappl8 128 339 0 304 2 0 2 2 0 8 0 amappl7 120 117 0 103 1 0 1 1 0 8 0 amappl6 112 33 0 25 1 0 1 1 0 8 0 amappl5 104 302 0 285 1 0 1 1 0 8 0 amappl4 96 823 0 791 1 0 1 1 0 8 0 amappl3 88 298 0 288 1 0 1 1 0 8 0 amappl2 80 3608 0 3530 2 0 2 2 0 8 0 amappl1 72 25531 0 25073 23 13 10 18 0 8 0 amappl 80 1658 0 1571 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 21 0 6 1 0 1 1 0 8 0 uaddrrnd 24 570 0 552 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 570 0 552 1 0 1 1 0 8 0 vmmpekpl 168 8266 0 8224 3 0 3 3 0 8 0 vmmpepl 168 79985 0 77816 142 44 98 115 0 357 3 vmsppl 368 569 0 552 2 0 2 2 0 8 0 pdppl 4096 1147 0 1105 7 1 6 6 0 8 0 pvpl 32 227576 0 205760 210 13 197 210 0 265 20 pmappl 232 569 0 552 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 282 0 13 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(ffffffff82738ff0) 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(ffffffff8293cd60) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8293cd60) at __mp_lock+0x12e sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff8293cd60) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8293cd60) at __mp_lock+0x127 sys/kern/kern_lock.c:147 uvm_map_inentry(ffff8000241967a0,ffff800024196818,37a9639571a,ffffffff8242ba6c,ffffffff81b42ab0,1b) at uvm_map_inentry+0xbe sys/uvm/uvm_map.c:1890 syscall(ffff8000241a3c00) at syscall+0x3dc mi_syscall sys/sys/syscall_mi.h:87 [inline] syscall(ffff8000241a3c00) at syscall+0x3dc sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcf5c0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> trace in_delmulti(5) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000af9200) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000af5000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_setrdomain(ffff800000af5000,6) at if_setrdomain+0x19a sys/net/if.c:1778 ifioctl(fffffd80663c41b8,8020699f,ffff8000241a9400,ffff8000241973f8) at ifioctl+0x16ad sys/net/if.c:2038 soo_ioctl(fffffd806441f5f8,8020699f,ffff8000241a9400,ffff8000241973f8) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff8000241973f8,ffff8000241a9518,ffff8000241a9560) at sys_ioctl+0x4a5 syscall(ffff8000241a95e0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000241a95e0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a61c643300, count: -9