uvm_fault(0xfffffd807f00b450, 0x9b, 0, 1) -> e kernel: page fault trap, code=0 Stopped at bpfioctl+0xc7: movzbl 0x9b(%r14),%ebx ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xfffffd807f00b450, 0x9b, 0, 1) -> e bpfioctl(31700,8020426c,ffff800024bcd5e0,1,ffff800020acf3f0) at bpfioctl+0xc7 sys/net/bpf.c:672 end trace frame: 0xffff800024bcd4c0, count: 0 ddb{1}> trace bpfioctl(31700,8020426c,ffff800024bcd5e0,1,ffff800020acf3f0) at bpfioctl+0xc7 sys/net/bpf.c:672 VOP_IOCTL(fffffd8066e8a680,8020426c,ffff800024bcd5e0,1,fffffd807f7c69c0,ffff800020acf3f0) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd8065a521e8,8020426c,ffff800024bcd5e0,ffff800020acf3f0) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:536 sys_ioctl(ffff800020acf3f0,ffff800024bcd6f8,ffff800024bcd740) at sys_ioctl+0x5b9 syscall(ffff800024bcd7c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800024bcd7c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff14,0,3,c7f3daa9010) at Xsyscall+0x128 end of kernel end trace frame: 0xc81ab255f70, count: -6 ddb{1}> show registers rdi 0xffffffff8188c77c bpfioctl+0xac rsi 0x10c rbp 0xffff800024bcd410 rbx 0x300 rdx 0x10d rcx 0xffff80002379e000 rax 0xffff80002379e000 r8 0xffff800020acf3f0 r9 0x5 r10 0x4 r11 0x5474074fa7e95d1c r12 0x8020426c __kernel_virt_to_phys+0x20426c r13 0xffff800020acf3f0 r14 0 r15 0xffff800024bcd5e0 rip 0xffffffff8188c797 bpfioctl+0xc7 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800024bcd3a0 ss 0x10 bpfioctl+0xc7: movzbl 0x9b(%r14),%ebx ddb{1}> show proc PROC (syz-executor.0) pid=86329 stat=onproc flags process=0 proc=4000000 pri=82, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff800020ace520,0xffff800020ace7a8 process=0xffff800020add180 user=0xffff800024bc8000, vmspace=0xfffffd807f00b450 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 29285 84976 64812 0 2 0 syz-executor.0 *29285 86329 64812 0 7 0x4000000 syz-executor.0 29285 277864 64812 0 3 0x4000000 tqbar syz-executor.0 61725 269731 57376 0 3 0x80 nanosleep syz-executor.1 61725 134455 57376 0 3 0x4000080 netcon syz-executor.1 61725 315777 57376 0 3 0x4000080 fsleep syz-executor.1 38242 347260 1 0 3 0x100083 ttyin getty 64812 397973 82173 0 3 0x82 nanosleep syz-executor.0 57376 19873 82173 0 3 0x82 nanosleep syz-executor.1 22145 76965 0 0 3 0x14200 acct acct 14447 393382 0 0 3 0x14200 bored sosplice 82173 262257 45420 0 3 0x82 nanosleep syz-fuzzer 82173 497160 45420 0 3 0x4000082 nanosleep syz-fuzzer 82173 30291 45420 0 3 0x4000082 thrsleep syz-fuzzer 82173 118679 45420 0 3 0x4000082 thrsleep syz-fuzzer 82173 294341 45420 0 3 0x4000082 thrsleep syz-fuzzer 82173 209298 45420 0 3 0x4000082 thrsleep syz-fuzzer 82173 384913 45420 0 3 0x4000082 thrsleep syz-fuzzer 82173 237467 45420 0 3 0x4000082 thrsleep syz-fuzzer 82173 17213 45420 0 3 0x4000082 kqread syz-fuzzer 82173 29633 45420 0 3 0x4000082 thrsleep syz-fuzzer 45420 212221 92503 0 3 0x10008a pause ksh 92503 373404 75058 0 3 0x92 select sshd 75058 121538 1 0 3 0x80 select sshd 19414 194335 13899 74 3 0x100092 bpf pflogd 13899 353233 1 0 3 0x80 netio pflogd 63224 67904 89103 73 3 0x100090 kqread syslogd 89103 51579 1 0 3 0x100082 netio syslogd 96137 105393 1 77 3 0x100090 poll dhclient 13477 500818 1 0 3 0x80 poll dhclient 73690 41005 0 0 3 0x14200 pgzero zerothread 48639 160250 0 0 3 0x14200 aiodoned aiodoned 90904 162064 0 0 3 0x14200 syncer update 12969 407104 0 0 3 0x14200 cleaner cleaner 49223 220238 0 0 3 0x14200 reaper reaper 72012 46205 0 0 3 0x14200 pgdaemon pagedaemon 91156 357985 0 0 3 0x14200 bored crynlk 94280 318408 0 0 3 0x14200 bored crypto 50357 487315 0 0 3 0x40014200 acpi0 acpi0 41747 483374 0 0 3 0x40014200 idle1 65883 331923 0 0 3 0x14200 bored softnet 93268 196418 0 0 3 0x14200 bored systqmp 41168 17672 0 0 7 0x14200 systq 43684 272256 0 0 3 0x40014200 bored softclock 63666 12994 0 0 3 0x40014200 idle0 33588 55742 0 0 3 0x14200 bored smr 1 380093 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 29285 (syz-executor.0) thread 0xffff800020acf3f0 (86329) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82646680) #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9610 6585K 14997K 78643K 26145 0 0 pcb 13 12K 14K 78643K 461 0 0 rtable 102 8K 9K 78643K 1477 0 0 ifaddr 93 18K 19K 78643K 430 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 2012 0 0 iov 0 0K 24K 78643K 356 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1251 79K 79K 78643K 5410 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 9K 78643K 32 0 0 VM map 18 9K 9K 78643K 28 0 0 sem 12 0K 1K 78643K 414 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 6 17K 25K 78643K 2100 0 0 sigio 0 0K 0K 78643K 20 0 0 proc 61 63K 95K 78643K 1152 0 0 subproc 32 2K 2K 78643K 255 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 153 0 0 in_multi 26 1K 2K 78643K 267 0 0 ether_multi 1 0K 0K 78643K 15 0 0 mrt 0 0K 0K 78643K 4 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 60 265K 265K 78643K 60 0 0 exec 0 0K 1K 78643K 661 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 143 169K 169K 78643K 8595 0 0 UVM aobj 130 4K 4K 78643K 137 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 418 0 0 NDP 23 0K 1K 78643K 135 0 0 temp 249 3561K 4196K 78643K 45754 0 0 kqueue 0 0K 0K 78643K 13 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 54 0 49 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 141 0 139 1 0 1 1 0 8 0 rtentry 112 269 0 234 2 0 2 2 0 8 0 unpcb 120 2661 0 2646 2 1 1 2 0 8 0 syncache 264 16 0 16 6 6 0 1 0 8 0 tcpqe 32 115 0 115 3 3 0 1 0 8 0 tcpcb 544 1364 0 1356 31 30 1 14 0 8 0 inpcb 280 4036 0 4025 33 31 2 13 0 8 1 nd6 48 35 0 33 2 1 1 1 0 8 0 pkpcb 40 14 0 14 5 5 0 1 0 8 0 swfcl 56 3 0 0 1 0 1 1 0 8 0 ppxss 1128 47 0 47 8 7 1 1 0 8 1 pffrag 232 380 0 314 5 1 4 4 0 482 0 pffrnode 88 317 0 314 2 1 1 1 0 8 0 pffrent 40 13377 0 13301 3 1 2 2 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 24 665 0 481 2 0 2 2 0 8 0 pfstkey 112 665 0 481 8 1 7 8 0 8 0 pfstate 328 665 0 480 23 3 20 23 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 5 0 4 4 3 1 3 0 8 0 art_heap4 256 1101 0 924 23 7 16 16 0 8 2 art_table 32 1106 0 928 3 0 3 3 0 8 0 art_node 16 268 0 236 1 0 1 1 0 8 0 sysvmsgpl 40 37 0 22 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 412 0 402 1 0 1 1 0 8 0 shmpl 112 135 0 7 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 4457 0 3047 46 0 46 46 0 8 0 ffsino 272 4457 0 3047 95 0 95 95 0 8 0 nchpl 144 7725 0 6105 62 1 61 61 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 208 5926 0 0 312 0 312 312 0 8 0 namei 1024 28460 0 28460 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 16 0 0 2 0 2 2 0 8 0 vmpool 552 26 0 10 4 2 2 2 0 8 0 scxspl 192 24492 0 24492 19 17 2 7 0 8 2 plimitpl 152 142 0 134 1 0 1 1 0 8 0 sigapl 432 2262 0 2246 4 2 2 3 0 8 0 futexpl 56 51947 0 51946 1 0 1 1 0 8 0 knotepl 112 558 0 539 3 2 1 3 0 8 0 kqueuepl 104 801 0 799 8 7 1 4 0 8 0 pipepl 112 1204 0 1185 7 6 1 2 0 8 0 fdescpl 488 2263 0 2246 3 0 3 3 0 8 0 filepl 152 21108 0 21001 40 34 6 14 0 8 1 lockfpl 104 712 0 711 1 0 1 1 0 8 0 lockfspl 48 238 0 237 1 0 1 1 0 8 0 sessionpl 112 32 0 21 1 0 1 1 0 8 0 pgrppl 48 91 0 80 1 0 1 1 0 8 0 ucredpl 96 1820 0 1811 1 0 1 1 0 8 0 zombiepl 144 2246 0 2246 1 0 1 1 0 8 1 processpl 896 2280 0 2246 4 0 4 4 0 8 0 procpl 632 7115 0 7068 7 2 5 5 0 8 0 srpgc 64 18 0 18 7 6 1 1 0 8 1 sosppl 128 21 0 21 7 6 1 1 0 8 1 sockpl 384 6887 0 6859 52 47 5 22 0 8 1 mcl64k 65536 92 0 0 11 0 11 11 0 8 0 mcl16k 16384 16 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 23 0 0 2 0 2 2 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 20 0 0 3 0 3 3 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 214 0 0 26 4 22 26 0 8 0 mtagpl 80 112 0 0 2 0 2 2 0 8 0 mbufpl 256 961 0 0 53 0 53 53 0 8 0 bufpl 256 11967 0 4919 441 0 441 441 0 8 0 anonpl 16 294053 0 276199 136 56 80 89 0 124 4 amapchunkpl 152 16770 0 16638 43 34 9 14 0 158 3 amappl16 192 12955 0 11901 115 53 62 65 0 8 5 amappl15 184 54 0 52 1 0 1 1 0 8 0 amappl14 176 483 0 481 1 0 1 1 0 8 0 amappl13 168 403 0 403 3 3 0 1 0 8 0 amappl12 160 342 0 341 3 2 1 1 0 8 0 amappl11 152 276 0 261 1 0 1 1 0 8 0 amappl10 144 467 0 457 1 0 1 1 0 8 0 amappl9 136 939 0 932 1 0 1 1 0 8 0 amappl8 128 519 0 481 2 0 2 2 0 8 0 amappl7 120 519 0 509 1 0 1 1 0 8 0 amappl6 112 265 0 253 1 0 1 1 0 8 0 amappl5 104 584 0 570 1 0 1 1 0 8 0 amappl4 96 2663 0 2626 2 1 1 2 0 8 0 amappl3 88 551 0 546 1 0 1 1 0 8 0 amappl2 80 16733 0 16649 3 1 2 3 0 8 0 amappl1 72 60477 0 60014 26 16 10 20 0 8 0 amappl 80 7642 0 7591 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 17 0 17 1 1 0 1 0 8 0 aobjpl 64 136 0 7 3 0 3 3 0 8 0 uaddrrnd 24 2289 0 2246 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2289 0 2246 1 0 1 1 0 8 0 vmmpekpl 168 21764 0 21730 3 1 2 2 0 8 0 vmmpepl 168 297365 0 295013 216 84 132 152 0 357 25 vmsppl 368 2262 0 2246 2 0 2 2 0 8 0 pdppl 4096 4585 0 4528 12 4 8 8 0 8 0 pvpl 32 773824 0 752659 270 69 201 214 0 265 27 pmappl 232 2288 0 2256 4 2 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 714 0 51 19 0 19 19 0 8 0