uvm_fault(0xfffffd807effea10, 0xafb9, 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, 0xafb9, 0, 1) -> e in_delmulti(afad) at in_delmulti+0x8d sys/netinet/in.c:914 end trace frame: 0xffff8000230d3aa0, count: 0 ddb{1}> trace in_delmulti(afad) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b01400) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000ac6000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000ac6000) at if_detach+0x140 sys/net/if.c:1032 tun_clone_destroy(ffff800000ac6000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:326 ifioctl(fffffd8063dc1028,80206979,ffff8000230d3ce0,ffff800021f52798) at ifioctl+0x3ea sys/net/if.c:1821 soo_ioctl(fffffd80645f7d10,80206979,ffff8000230d3ce0,ffff800021f52798) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800021f52798,ffff8000230d3df8,ffff8000230d3e40) at sys_ioctl+0x4a5 syscall(ffff8000230d3ec0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230d3ec0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcf8781ad00, count: -10 ddb{1}> show registers rdi 0x2 rsi 0x40000 acpi_pdirpa+0x2be68 rbp 0xffff8000230d3a50 rbx 0 rdx 0xffff800000aeb480 rcx 0xffff800000aeb480 rax 0x3ffff acpi_pdirpa+0x2be67 r8 0xffff800000b01400 r9 0xffffffff81e56833 rt_ifa_purge+0x153 r10 0x5 r11 0x7c2da59fc983d7fd r12 0 r13 0x8da1216f __kernel_virt_to_phys+0xda1216f r14 0xafad __ALIGN_SIZE+0x9fad r15 0x1 rip 0xffffffff823bf7bd in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000230d39f0 ss 0 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> show proc PROC (syz-executor.0) pid=87416 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800021f52a10,0xffffffff828cde18 process=0xffff800021f38fc8 user=0xffff8000230ce000, 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 46669 3000 34496 0 2 0 syz-executor.0 *46669 87416 34496 0 7 0x4000000 syz-executor.0 70547 167553 0 0 3 0x14280 nfsidl nfsio 11428 24753 0 0 3 0x14280 nfsidl nfsio 58991 195583 0 0 3 0x14280 nfsidl nfsio 80287 303454 0 0 3 0x14280 nfsidl nfsio 1791 129307 0 0 3 0x14280 nfsidl nfsio 86819 4647 0 0 3 0x14280 nfsidl nfsio 47141 487495 0 0 3 0x14280 nfsidl nfsio 40574 403178 0 0 3 0x14280 nfsidl nfsio 70544 231528 0 0 3 0x14280 nfsidl nfsio 32986 120920 0 0 3 0x14280 nfsidl nfsio 48065 202964 0 0 3 0x14280 nfsidl nfsio 27499 369811 0 0 3 0x14280 nfsidl nfsio 90143 407188 0 0 3 0x14280 nfsidl nfsio 38351 376032 0 0 3 0x14280 nfsidl nfsio 1908 123552 0 0 3 0x14280 nfsidl nfsio 24134 108909 0 0 3 0x14280 nfsidl nfsio 98567 380675 0 0 3 0x14280 nfsidl nfsio 93108 456341 0 0 3 0x14280 nfsidl nfsio 47900 186628 0 0 3 0x14280 nfsidl nfsio 96656 302211 0 0 3 0x14280 nfsidl nfsio 473 473507 0 0 3 0x14200 bored sosplice 39819 18012 24594 0 3 0x82 piperd syz-executor.1 34496 382467 24594 0 3 0x82 nanosleep syz-executor.0 24594 413423 95977 0 3 0x82 thrsleep syz-fuzzer 24594 183647 95977 0 3 0x4000082 nanosleep syz-fuzzer 24594 18314 95977 0 3 0x4000082 thrsleep syz-fuzzer 24594 125606 95977 0 7 0x4000002 syz-fuzzer 24594 323684 95977 0 3 0x4000082 kqread syz-fuzzer 24594 220516 95977 0 3 0x4000082 thrsleep syz-fuzzer 24594 417119 95977 0 3 0x4000082 thrsleep syz-fuzzer 24594 490980 95977 0 3 0x4000082 thrsleep syz-fuzzer 95977 222465 56468 0 3 0x10008a pause ksh 56468 195570 63021 0 3 0x92 select sshd 74983 285510 1 0 3 0x100083 ttyin getty 63021 233208 1 0 3 0x80 select sshd 75588 412309 51505 74 3 0x100092 bpf pflogd 51505 184714 1 0 3 0x80 netio pflogd 85881 503548 7694 73 3 0x100090 kqread syslogd 7694 493456 1 0 3 0x100082 netio syslogd 93230 309995 1 77 2 0x100090 dhclient 34350 201276 1 0 3 0x80 poll dhclient 88296 220575 0 0 3 0x14200 bored smr 72643 100787 0 0 3 0x14200 pgzero zerothread 19974 134753 0 0 3 0x14200 aiodoned aiodoned 43609 498312 0 0 3 0x14200 syncer update 46115 156457 0 0 3 0x14200 cleaner cleaner 13851 165440 0 0 3 0x14200 reaper reaper 17941 320605 0 0 3 0x14200 pgdaemon pagedaemon 53600 174142 0 0 3 0x14200 bored crynlk 45369 168111 0 0 3 0x14200 bored crypto 35531 436377 0 0 3 0x40014200 acpi0 acpi0 38834 309544 0 0 3 0x40014200 idle1 1958 420252 0 0 3 0x14200 bored softnet 32775 374104 0 0 3 0x14200 bored systqmp 87920 24009 0 0 3 0x14200 bored systq 47099 190320 0 0 3 0x40014200 bored softclock 96978 2844 0 0 3 0x40014200 idle0 1 363382 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 46669 (syz-executor.0) thread 0xffff800021f52798 (87416) exclusive rwlock netlock r = 0 (0xffffffff827713e0) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 if_detach+0x70 sys/net/if.c:1010 #2 tun_clone_destroy+0x1e1 sys/net/if_tun.c:326 #3 ifioctl+0x3ea sys/net/if.c:1821 #4 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #5 sys_ioctl+0x4a5 #6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #7 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82933348) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 #2 mi_switch+0x392 sys/kern/sched_bsd.c:435 #3 sleep_finish+0x113 sys/kern/kern_synch.c:418 #4 cond_wait+0x76 sys/kern/kern_synch.c:907 #5 smr_barrier_impl+0xf9 sys/kern/kern_smr.c:271 #6 tun_clone_destroy+0x136 sys/net/if_tun.c:311 #7 ifioctl+0x3ea sys/net/if.c:1821 #8 soo_ioctl+0x27c sys/kern/sys_socket.c:138 #9 sys_ioctl+0x4a5 #10 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #11 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9550 6428K 6802K 78643K 11555 0 pcb 13 8K 8K 78643K 145 0 rtable 130 9K 10K 78643K 410 0 ifaddr 110 20K 21K 78643K 182 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 57 0 ioctlops 0 0K 4K 78643K 1591 0 iov 0 0K 16K 78643K 113 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1536 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 12 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 143 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 791 0 sigio 0 0K 0K 78643K 4 0 proc 62 63K 95K 78643K 495 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 84 0 in_multi 80 3K 4K 78643K 209 0 ether_multi 1 0K 0K 78643K 23 0 mrt 0 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 275 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 43K 52K 78643K 3439 0 UVM aobj 21 2K 2K 78643K 25 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 2 0K 0K 78643K 1531 0 NDP 17 0K 0K 78643K 39 0 temp 159 3879K 3943K 78643K 4990 0 kqueue 3 4K 16K 78643K 53 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 8 0 3 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 44 0 42 1 0 1 1 0 8 0 rtentry 112 80 0 37 2 0 2 2 0 8 0 unpcb 120 618 0 603 2 1 1 2 0 8 0 syncache 272 15 0 15 5 4 1 1 0 8 1 tcpqe 32 535 0 535 4 3 1 1 0 8 1 tcpcb 592 1365 0 1350 6 2 4 4 0 8 1 inpcb 296 2737 0 2723 2 0 2 2 0 8 0 rttmr 72 3 0 3 1 0 1 1 0 8 1 nd6 48 28 0 21 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 1 0 1 0 8 0 ppxss 1136 1 0 1 1 0 1 1 0 8 1 pffrag 232 9 0 6 2 1 1 1 0 482 0 pffrnode 88 9 0 6 2 1 1 1 0 8 0 pffrent 40 103 0 100 2 1 1 1 0 8 0 pfosfp 40 847 0 423 5 0 5 5 0 8 0 pfosfpen 112 1430 0 714 21 0 21 21 0 8 0 pfrke_plain 160 6 0 3 2 1 1 1 0 8 0 pfrktable 1344 24 0 14 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 24 0 19 1 0 1 1 0 8 0 pfstkey 112 24 0 19 1 0 1 1 0 8 0 pfstate 328 24 0 19 2 0 2 2 0 8 0 pfrule 1360 34 0 21 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 250 0 57 17 3 14 14 0 8 1 art_table 32 251 0 57 2 0 2 2 0 8 0 art_node 16 79 0 41 1 0 1 1 0 8 0 sysvmsgpl 40 38 0 19 2 1 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 137 0 127 1 0 1 1 0 8 0 shmpl 112 22 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2431 0 1033 89 0 89 89 0 8 0 ffsino 272 2431 0 1033 96 1 95 95 0 8 0 nchpl 144 3759 0 2146 60 0 60 60 0 8 0 uvmvnodes 72 2695 0 0 49 0 49 49 0 8 0 vnodes 208 2695 0 0 142 0 142 142 0 8 0 namei 1024 10132 0 10132 2 1 1 1 0 8 1 percpumem 16 39 0 7 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 3 0 1 2 1 1 1 0 8 0 pfiaddrpl 120 11 0 3 1 0 1 1 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 200 10906 0 10906 13 10 3 7 0 8 3 plimitpl 152 67 0 59 1 0 1 1 0 8 0 sigapl 424 1027 0 975 6 0 6 6 0 8 0 futexpl 56 14675 0 14675 1 0 1 1 0 8 1 knotepl 112 142 0 122 1 0 1 1 0 8 0 kqueuepl 152 121 0 116 1 0 1 1 0 8 0 pipepl 304 171 0 160 3 1 2 2 0 8 1 fdescpl 496 991 0 975 3 0 3 3 0 8 0 filepl 152 7076 0 6968 7 2 5 6 0 8 0 lockfpl 104 206 0 205 1 0 1 1 0 8 0 lockfspl 48 67 0 66 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 96 643 0 633 1 0 1 1 0 8 0 zombiepl 144 975 0 975 2 1 1 1 0 8 1 processpl 1008 1027 0 975 8 1 7 7 0 8 0 procpl 632 2627 0 2567 7 1 6 6 0 8 0 srpgc 72 3 0 3 1 0 1 1 0 8 1 sosppl 144 13 0 13 5 5 0 1 0 8 0 sockpl 400 3407 0 3377 9 4 5 6 0 8 1 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 11 0 0 2 0 2 2 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 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 186 0 0 23 0 23 23 0 8 1 mtagpl 96 60 0 0 2 0 2 2 0 8 0 mbufpl 256 627 0 0 37 0 37 37 0 8 0 bufpl 280 4786 0 127 333 0 333 333 0 8 0 anonpl 16 115611 0 97595 108 26 82 90 0 124 7 amapchunkpl 152 6677 0 6388 34 17 17 25 0 158 3 amappl16 192 4504 0 3623 59 14 45 55 0 8 0 amappl15 184 56 0 51 1 0 1 1 0 8 0 amappl14 176 1 0 0 1 0 1 1 0 8 0 amappl13 168 30 0 26 1 0 1 1 0 8 0 amappl12 160 19 0 16 1 0 1 1 0 8 0 amappl11 152 55 0 40 1 0 1 1 0 8 0 amappl10 144 60 0 56 1 0 1 1 0 8 0 amappl9 136 1081 0 1078 1 0 1 1 0 8 0 amappl8 128 1081 0 1039 2 0 2 2 0 8 0 amappl7 120 116 0 103 1 0 1 1 0 8 0 amappl6 112 32 0 25 1 0 1 1 0 8 0 amappl5 104 896 0 878 1 0 1 1 0 8 0 amappl4 96 482 0 452 1 0 1 1 0 8 0 amappl3 88 158 0 149 1 0 1 1 0 8 0 amappl2 80 6981 0 6911 2 0 2 2 0 8 0 amappl1 72 37793 0 37344 23 13 10 18 0 8 0 amappl 80 2893 0 2817 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 24 0 4 1 0 1 1 0 8 0 uaddrrnd 24 994 0 976 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 994 0 976 1 0 1 1 0 8 0 vmmpekpl 168 10827 0 10785 3 0 3 3 0 8 0 vmmpepl 168 133340 0 131241 127 34 93 112 0 357 1 vmsppl 368 993 0 976 2 0 2 2 0 8 0 pdppl 4096 1995 0 1954 9 3 6 6 0 8 0 pvpl 32 343604 0 322309 232 37 195 214 0 265 18 pmappl 232 993 0 976 3 1 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 305 0 19 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82785ff0) 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: 0xc0001b2e00, count: -3 ddb{0}> machine ddbcpu 1 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> trace in_delmulti(afad) at in_delmulti+0x8d sys/netinet/in.c:914 in_purgeaddr(ffff800000b01400) at in_purgeaddr+0x156 sys/netinet/in.c:760 in_ifdetach(ffff800000ac6000) at in_ifdetach+0x74 sys/netinet/in.c:971 if_detach(ffff800000ac6000) at if_detach+0x140 sys/net/if.c:1032 tun_clone_destroy(ffff800000ac6000) at tun_clone_destroy+0x1e1 sys/net/if_tun.c:326 ifioctl(fffffd8063dc1028,80206979,ffff8000230d3ce0,ffff800021f52798) at ifioctl+0x3ea sys/net/if.c:1821 soo_ioctl(fffffd80645f7d10,80206979,ffff8000230d3ce0,ffff800021f52798) at soo_ioctl+0x27c sys/kern/sys_socket.c:138 sys_ioctl(ffff800021f52798,ffff8000230d3df8,ffff8000230d3e40) at sys_ioctl+0x4a5 syscall(ffff8000230d3ec0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230d3ec0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcf8781ad00, count: -10