uvm_fault(0xfffffd807f00ca10, 0x9b, 0, 1) -> e kernel: page fault trap, code=0 Stopped at bpfioctl+0xc7: movzbl 0x9b(%r14),%ebx ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd807f00ca10, 0x9b, 0, 1) -> e bpfioctl(31700,80044270,ffff800020f71a90,1,ffff800020ab18c8) at bpfioctl+0xc7 sys/net/bpf.c:674 end trace frame: 0xffff800020f71970, count: 0 ddb{0}> trace bpfioctl(31700,80044270,ffff800020f71a90,1,ffff800020ab18c8) at bpfioctl+0xc7 sys/net/bpf.c:674 VOP_IOCTL(fffffd8076140aa8,80044270,ffff800020f71a90,1,fffffd807f7c6780,ffff800020ab18c8) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd80664056a8,80044270,ffff800020f71a90,ffff800020ab18c8) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 sys_ioctl(ffff800020ab18c8,ffff800020f71ba8,ffff800020f71bf0) at sys_ioctl+0x5b9 syscall(ffff800020f71c70) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800020f71c70) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff0d,0,3,37b9a0f41b0) at Xsyscall+0x128 end of kernel end trace frame: 0x37db59b4990, count: -6 ddb{0}> show registers rdi 0xffffffff8217a27c bpfioctl+0xac rsi 0xdb rbp 0xffff800020f718c0 rbx 0x300 rdx 0xdc rcx 0xffff8000223a8000 rax 0xffff8000223a8000 r8 0xffff800020ab18c8 r9 0x5 r10 0x4 r11 0xba5a1e0d2bed41be r12 0x80044270 __kernel_virt_to_phys+0x44270 r13 0xffff800020ab18c8 r14 0 r15 0xffff800020f71a90 rip 0xffffffff8217a297 bpfioctl+0xc7 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020f71850 ss 0x10 bpfioctl+0xc7: movzbl 0x9b(%r14),%ebx ddb{0}> show proc PROC (syz-executor.1) pid=142245 stat=onproc flags process=0 proc=4000000 pri=82, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff800020ab09f8,0xffffffff82670cc8 process=0xffff800020adc380 user=0xffff800020f6c000, vmspace=0xfffffd807f00ca10 estcpu=32, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 73552 451247 64051 0 2 0 syz-executor.1 73552 47972 64051 0 2 0x4000000 syz-executor.1 73552 467510 64051 0 3 0x4000080 fsleep syz-executor.1 *73552 142245 64051 0 7 0x4000000 syz-executor.1 43360 29482 77688 0 2 0x480 syz-executor.0 43360 509048 77688 0 3 0x4000080 fsleep syz-executor.0 43360 243922 77688 0 3 0x4000080 fsleep syz-executor.0 77688 394505 58584 0 3 0x82 nanosleep syz-executor.0 64051 398858 58584 0 7 0x482 syz-executor.1 29069 205513 0 0 3 0x14200 bored sosplice 58584 144495 81330 0 3 0x82 thrsleep syz-fuzzer 58584 371506 81330 0 3 0x4000082 thrsleep syz-fuzzer 58584 155310 81330 0 3 0x4000082 thrsleep syz-fuzzer 58584 420185 81330 0 3 0x4000082 thrsleep syz-fuzzer 58584 31994 81330 0 3 0x4000082 thrsleep syz-fuzzer 58584 252269 81330 0 3 0x4000082 kqread syz-fuzzer 58584 226011 81330 0 3 0x4000082 thrsleep syz-fuzzer 58584 56553 81330 0 3 0x4000082 thrsleep syz-fuzzer 58584 221065 81330 0 3 0x4000082 thrsleep syz-fuzzer 58584 421537 81330 0 3 0x4000082 thrsleep syz-fuzzer 81330 79255 56824 0 3 0x10008a pause ksh 56824 349262 55505 0 3 0x92 select sshd 32793 272993 1 0 3 0x100083 ttyopn getty 55505 370806 1 0 3 0x80 select sshd 58688 321460 1123 74 3 0x100092 bpf pflogd 1123 117781 1 0 3 0x80 netio pflogd 21105 341741 50238 73 3 0x100090 kqread syslogd 50238 429218 1 0 3 0x100082 netio syslogd 66471 113042 1 77 3 0x100090 poll dhclient 42747 122563 1 0 3 0x80 poll dhclient 15168 113764 0 0 3 0x14200 pgzero zerothread 62515 25019 0 0 3 0x14200 aiodoned aiodoned 15796 543 0 0 3 0x14200 syncer update 66682 290683 0 0 3 0x14200 cleaner cleaner 95585 522188 0 0 3 0x14200 reaper reaper 94898 76228 0 0 3 0x14200 pgdaemon pagedaemon 77745 3775 0 0 3 0x14200 bored crynlk 49925 140065 0 0 3 0x14200 bored crypto 37982 30440 0 0 3 0x40014200 acpi0 acpi0 96427 404455 0 0 3 0x40014200 idle1 92379 417291 0 0 3 0x14200 bored softnet 14301 54763 0 0 3 0x14200 bored systqmp 6825 19851 0 0 3 0x14200 bored systq 72181 119901 0 0 3 0x40014200 bored softclock 25589 11978 0 0 3 0x40014200 idle0 72955 20043 0 0 3 0x14200 pause smr 1 180982 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 73552 (syz-executor.1) thread 0xffff800020ab18c8 (142245) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff826379f8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:555 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9582 6592K 7335K 78643K 18069 0 0 pcb 13 8K 8K 78643K 457 0 0 rtable 89 3K 4K 78643K 1585 0 0 ifaddr 73 16K 18K 78643K 516 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1601 0 0 iov 0 0K 16K 78643K 377 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1221 77K 77K 78643K 5174 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 3 5K 9K 78643K 56 0 0 VM map 2 1K 1K 78643K 6 0 0 sem 12 0K 1K 78643K 430 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1809 196K 290K 78643K 12843 0 0 file desc 6 17K 25K 78643K 3378 0 0 sigio 0 0K 0K 78643K 23 0 0 proc 62 63K 95K 78643K 1364 0 0 subproc 32 2K 2K 78643K 360 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 329 0 0 in_multi 22 1K 2K 78643K 343 0 0 ether_multi 1 0K 0K 78643K 16 0 0 mrt 1 0K 0K 78643K 20 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 114 503K 503K 78643K 114 0 0 exec 0 0K 1K 78643K 666 0 0 pfkey data 0 0K 4K 78643K 2 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 120 22K 33K 78643K 12388 0 0 UVM aobj 118 9K 9K 78643K 123 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 388 0 0 NDP 19 0K 0K 78643K 164 0 0 temp 208 3556K 4195K 78643K 73802 0 0 kqueue 0 0K 0K 78643K 24 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 47 0 43 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 211 0 209 1 0 1 1 0 8 0 rtentry 112 232 0 198 2 0 2 2 0 8 0 unpcb 120 1215 0 1202 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 5665 0 5665 1 1 0 1 0 8 0 tcpcb 544 770 0 766 1 0 1 1 0 8 0 inpcb 280 2200 0 2193 5 4 1 2 0 8 0 rttmr 72 3 0 3 3 3 0 1 0 8 0 nd6 48 38 0 36 1 0 1 1 0 8 0 pkpcb 40 14 0 14 5 5 0 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 64 0 64 11 10 1 1 0 8 1 pffrag 232 5 0 5 3 2 1 1 0 482 1 pffrnode 88 5 0 5 3 2 1 1 0 8 1 pffrent 40 13 0 13 3 2 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 pfstitem 24 99 0 87 1 0 1 1 0 8 0 pfstkey 112 99 0 87 1 0 1 1 0 8 0 pfstate 328 99 0 87 4 1 3 3 0 8 1 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1004 0 831 20 6 14 15 0 8 1 art_table 32 1005 0 831 2 0 2 2 0 8 0 art_node 16 228 0 197 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 3 1 1 0 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 427 0 417 1 0 1 1 0 8 0 shmpl 112 121 0 5 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 7118 0 5712 46 0 46 46 0 8 0 ffsino 272 7118 0 5712 94 0 94 94 0 8 0 nchpl 144 13341 0 11710 61 0 61 61 0 8 0 uvmvnodes 72 6172 0 0 113 0 113 113 0 8 0 vnodes 208 6172 0 0 325 0 325 325 0 8 0 namei 1024 50493 0 50493 4 3 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vmpool 552 4 0 4 2 2 0 1 0 8 0 scsiplug 64 8 0 8 7 7 0 1 0 8 0 scxspl 192 33840 0 33840 28 27 1 7 0 8 1 plimitpl 152 326 0 318 1 0 1 1 0 8 0 sigapl 432 3521 0 3505 3 1 2 3 0 8 0 futexpl 56 66775 0 66772 2 1 1 1 0 8 0 knotepl 112 836 0 817 1 0 1 1 0 8 0 kqueuepl 104 701 0 699 1 0 1 1 0 8 0 pipepl 112 1870 0 1849 5 4 1 2 0 8 0 fdescpl 488 3522 0 3505 3 0 3 3 0 8 0 filepl 152 33432 0 33314 22 16 6 7 0 8 1 lockfpl 104 6148 0 6144 1 0 1 1 0 8 0 lockfspl 48 2087 0 2083 1 0 1 1 0 8 0 sessionpl 112 37 0 26 1 0 1 1 0 8 0 pgrppl 48 73 0 62 1 0 1 1 0 8 0 ucredpl 96 11720 0 11711 1 0 1 1 0 8 0 zombiepl 144 3505 0 3505 3 2 1 1 0 8 1 processpl 896 3538 0 3505 4 0 4 4 0 8 0 procpl 632 10665 0 10618 9 4 5 5 0 8 1 srpgc 64 40 0 40 12 11 1 1 0 8 1 sosppl 128 50 0 50 11 11 0 1 0 8 0 sockpl 384 3678 0 3656 13 10 3 4 0 8 0 mcl64k 65536 512 0 0 64 18 46 64 0 8 1 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 16 0 0 2 0 2 2 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 125 0 0 15 0 15 15 0 8 0 mtagpl 80 45 0 0 1 0 1 1 0 8 0 mbufpl 256 718 0 0 39 0 39 39 0 8 0 bufpl 256 17504 0 10456 441 0 441 441 0 8 0 anonpl 16 403182 0 392034 141 71 70 72 0 124 11 amapchunkpl 152 24054 0 23937 53 43 10 19 0 158 4 amappl16 192 18887 0 18128 146 99 47 51 0 8 8 amappl15 184 1420 0 1419 1 0 1 1 0 8 0 amappl14 176 619 0 616 1 0 1 1 0 8 0 amappl13 168 449 0 449 2 2 0 1 0 8 0 amappl12 160 402 0 397 1 0 1 1 0 8 0 amappl11 152 371 0 356 1 0 1 1 0 8 0 amappl10 144 134 0 129 1 0 1 1 0 8 0 amappl9 136 1253 0 1246 1 0 1 1 0 8 0 amappl8 128 810 0 771 3 1 2 2 0 8 0 amappl7 120 231 0 222 1 0 1 1 0 8 0 amappl6 112 353 0 341 1 0 1 1 0 8 0 amappl5 104 674 0 659 1 0 1 1 0 8 0 amappl4 96 3912 0 3878 1 0 1 1 0 8 0 amappl3 88 525 0 515 1 0 1 1 0 8 0 amappl2 80 27225 0 27145 3 1 2 3 0 8 0 amappl1 72 88105 0 87646 26 16 10 20 0 8 0 amappl 80 11262 0 11220 2 1 1 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 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 122 0 5 2 0 2 2 0 8 0 uaddrrnd 24 3526 0 3505 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3526 0 3505 1 0 1 1 0 8 0 vmmpekpl 168 28796 0 28760 2 0 2 2 0 8 0 vmmpepl 168 442788 0 440765 228 117 111 111 0 357 23 vmsppl 368 3521 0 3505 2 0 2 2 0 8 0 pdppl 4096 7059 0 7018 8 2 6 6 0 8 0 pvpl 32 1021050 0 1006065 305 135 170 178 0 265 26 pmappl 232 3525 0 3509 4 3 1 2 0 8 0 extentpl 40 38 0 22 1 0 1 1 0 8 0 phpool 112 703 0 32 20 0 20 20 0 8 0