uvm_fault(0xfffffd803f014cc0, 0x7b, 0, 1) -> e kernel: page fault trap, code=0 Stopped at bpfioctl+0xb7: movzbl 0x7b(%r14),%ebx ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd803f014cc0, 0x7b, 0, 1) -> e bpfioctl(31700,80104267,ffff800017950da0,1,ffff8000ffff2290) at bpfioctl+0xb7 sys/net/bpf.c:674 end trace frame: 0xffff800017950c80, count: 0 ddb> trace bpfioctl(31700,80104267,ffff800017950da0,1,ffff8000ffff2290) at bpfioctl+0xb7 sys/net/bpf.c:674 VOP_IOCTL(fffffd80265bdc50,80104267,ffff800017950da0,1,fffffd803f7c6ae0,ffff8000ffff2290) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd803c982008,80104267,ffff800017950da0,ffff8000ffff2290) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 sys_ioctl(ffff8000ffff2290,ffff800017950eb8,ffff800017950f00) at sys_ioctl+0x5b9 syscall(ffff800017950f80) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff13,0,3,bf1c12010e0) at Xsyscall+0x128 end of kernel end trace frame: 0xbf49f872d40, count: -6 ddb> show registers rdi 0xffffffff812536ac bpfioctl+0x9c rsi 0x29 rbp 0xffff800017950bd0 rbx 0x300 rdx 0x2a rcx 0xffff800017983000 rax 0xffff800017983000 r8 0xffff8000ffff2290 r9 0x5 r10 0xffff800000b43d40 r11 0x3769d17daa8c4578 r12 0x80104267 __kernel_virt_to_phys+0x104267 r13 0xffff8000ffff2290 r14 0 r15 0xffff800017950da0 rip 0xffffffff812536c7 bpfioctl+0xb7 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800017950b60 ss 0x10 bpfioctl+0xb7: movzbl 0x7b(%r14),%ebx ddb> show proc PROC (syz-executor.0) pid=103992 stat=onproc flags process=0 proc=4000000 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff29f8,0xffffffff82579bf8 process=0xffff8000ffff6010 user=0xffff80001794c000, vmspace=0xfffffd803f014cc0 estcpu=31, cpticks=5, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 12549 119763 26375 0 2 0 syz-executor.0 12549 110724 26375 0 3 0x4000000 tqbar syz-executor.0 *12549 103992 26375 0 7 0x4000000 syz-executor.0 59703 508776 0 0 3 0x14200 acct acct 26375 92294 11640 0 3 0x82 nanosleep syz-executor.0 87001 326508 11640 0 3 0x82 nanosleep syz-executor.1 72951 308603 1 0 3 0x100083 ttyin getty 55753 22579 0 0 3 0x14200 bored sosplice 11640 125376 91380 0 3 0x82 thrsleep syz-fuzzer 11640 132747 91380 0 3 0x4000082 thrsleep syz-fuzzer 11640 96931 91380 0 3 0x4000082 thrsleep syz-fuzzer 11640 400067 91380 0 3 0x4000082 thrsleep syz-fuzzer 11640 122294 91380 0 3 0x4000082 kqread syz-fuzzer 11640 271745 91380 0 3 0x4000082 thrsleep syz-fuzzer 11640 280963 91380 0 3 0x4000082 thrsleep syz-fuzzer 11640 110638 91380 0 3 0x4000082 thrsleep syz-fuzzer 91380 84786 89455 0 3 0x10008a pause ksh 89455 155882 56835 0 3 0x92 select sshd 56835 170772 1 0 3 0x80 select sshd 68703 124600 84533 73 3 0x100090 kqread syslogd 84533 435655 1 0 3 0x100082 netio syslogd 61526 429338 1 77 3 0x100090 poll dhclient 23553 328520 1 0 3 0x80 poll dhclient 36572 24537 0 0 3 0x14200 pgzero zerothread 68133 518111 0 0 3 0x14200 aiodoned aiodoned 21544 370885 0 0 3 0x14200 syncer update 67677 487681 0 0 3 0x14200 cleaner cleaner 40711 252796 0 0 3 0x14200 reaper reaper 20081 464012 0 0 3 0x14200 pgdaemon pagedaemon 25006 263726 0 0 3 0x14200 bored crynlk 26298 383412 0 0 3 0x14200 bored crypto 75406 327615 0 0 3 0x40014200 acpi0 acpi0 1124 473579 0 0 3 0x14200 bored softnet 46571 274318 0 0 3 0x14200 bored systqmp 93786 120190 0 0 3 0x14200 tqbar systq 41077 121104 0 0 3 0x40014200 bored softclock 65702 310049 0 0 3 0x40014200 idle0 90931 213199 0 0 3 0x14200 bored smr 1 161463 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9597 7261K 8677K 78643K 30609 0 0 pcb 13 10K 12K 78643K 726 0 0 rtable 115 12K 13K 78643K 2359 0 0 ifaddr 91 20K 22K 78643K 617 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 190 0 0 iov 0 0K 32K 78643K 1497 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1232 77K 78K 78643K 6730 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 45 0 0 VM map 2 0K 0K 78643K 12 0 0 sem 12 1K 1K 78643K 331 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 3590 0 0 sigio 0 0K 0K 78643K 43 0 0 proc 50 38K 62K 78643K 1653 0 0 subproc 32 2K 2K 78643K 429 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 221 0 0 in_multi 34 2K 2K 78643K 423 0 0 ether_multi 1 0K 0K 78643K 32 0 0 mrt 2 0K 0K 78643K 39 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 78 344K 344K 78643K 78 0 0 exec 0 0K 1K 78643K 869 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 40K 78643K 9892 0 0 UVM aobj 130 4K 4K 78643K 151 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 837 0 0 NDP 21 0K 1K 78643K 217 0 0 temp 239 3543K 4181K 78643K 122928 0 0 kqueue 0 0K 0K 78643K 23 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 75 0 71 1 0 1 1 0 8 0 rtpcb 80 281 0 279 1 0 1 1 0 8 0 rtentry 112 410 0 369 2 0 2 2 0 8 0 unpcb 120 1397 0 1384 1 0 1 1 0 8 0 syncache 264 22 0 22 8 8 0 1 0 8 0 sackhl 24 2 0 2 2 2 0 1 0 8 0 tcpqe 32 6680 0 6680 5 5 0 1 0 8 0 tcpcb 544 2100 0 2095 32 17 15 15 0 8 14 ipq 40 39 0 39 14 14 0 1 0 8 0 ipqe 40 283 0 283 14 14 0 1 0 8 0 inpcb 280 6056 0 6048 33 24 9 9 0 8 8 rttmr 72 11 0 11 6 6 0 1 0 8 0 nd6 48 56 0 51 3 2 1 1 0 8 0 pkpcb 40 20 0 20 6 6 0 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 78 0 77 1 0 1 1 0 8 0 art_heap8 4096 6 0 5 6 5 1 3 0 8 0 art_heap4 256 1725 0 1490 33 17 16 16 0 8 0 art_table 32 1731 0 1495 3 0 3 3 0 8 0 art_node 16 406 0 369 1 0 1 1 0 8 0 sysvmsgpl 40 58 0 37 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 329 0 319 1 0 1 1 0 8 0 shmpl 112 149 0 21 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 6846 0 5441 46 0 46 46 0 8 0 ffsino 240 6846 0 5441 83 0 83 83 0 8 0 nchpl 144 12056 0 10435 61 0 61 61 0 8 0 uvmvnodes 72 7811 0 0 143 0 143 143 0 8 0 vnodes 208 7811 0 0 412 0 412 412 0 8 0 namei 1024 44934 0 44934 7 6 1 1 0 8 1 vmpool 520 10 0 10 5 5 0 1 0 8 0 scsiplug 64 2 0 2 2 2 0 1 0 8 0 scxspl 192 48898 0 48898 34 32 2 7 0 8 2 plimitpl 152 308 0 301 1 0 1 1 0 8 0 sigapl 432 3693 0 3679 2 0 2 2 0 8 0 futexpl 56 97810 0 97810 5 4 1 1 0 8 1 knotepl 112 1162 0 1142 7 6 1 3 0 8 0 kqueuepl 104 998 0 994 7 3 4 4 0 8 3 pipepl 112 2042 0 2023 7 5 2 2 0 8 1 fdescpl 424 3694 0 3679 2 0 2 2 0 8 0 filepl 120 32528 0 32415 23 12 11 11 0 8 7 lockfpl 104 1918 0 1917 1 0 1 1 0 8 0 lockfspl 48 610 0 609 1 0 1 1 0 8 0 sessionpl 112 41 0 31 1 0 1 1 0 8 0 pgrppl 48 297 0 287 1 0 1 1 0 8 0 ucredpl 96 3510 0 3502 1 0 1 1 0 8 0 zombiepl 144 3682 0 3681 3 2 1 1 0 8 0 processpl 864 3712 0 3681 4 0 4 4 0 8 0 procpl 632 7945 0 7905 4 0 4 4 0 8 0 sosppl 128 54 0 54 13 12 1 1 0 8 1 sockpl 384 7796 0 7773 39 25 14 14 0 8 11 mcl64k 65536 961 0 961 68 67 1 64 0 8 1 mcl16k 16384 72 0 72 12 11 1 1 0 8 1 mcl12k 12288 152 0 152 10 9 1 1 0 8 1 mcl9k 9216 72 0 72 13 12 1 1 0 8 1 mcl8k 8192 193 0 193 9 8 1 1 0 8 1 mcl4k 4096 387 0 387 9 8 1 1 0 8 1 mcl2k2 2112 51 0 51 15 14 1 1 0 8 1 mcl2k 2048 66134 0 66092 32 25 7 18 0 8 0 mtagpl 80 183 0 174 5 4 1 1 0 8 0 mbufpl 256 141769 0 141682 84 73 11 37 0 8 1 bufpl 256 22542 0 14740 489 0 489 489 0 8 0 anonpl 16 444863 0 428152 162 81 81 84 0 62 9 amapchunkpl 152 19880 0 19771 73 67 6 18 0 158 0 amappl16 192 21118 0 20138 167 112 55 60 0 8 5 amappl15 184 618 0 616 2 1 1 1 0 8 0 amappl14 176 1016 0 1013 2 1 1 1 0 8 0 amappl13 168 410 0 410 5 5 0 1 0 8 0 amappl12 160 347 0 346 2 1 1 1 0 8 0 amappl11 152 615 0 604 1 0 1 1 0 8 0 amappl10 144 544 0 544 3 3 0 1 0 8 0 amappl9 136 1068 0 1061 1 0 1 1 0 8 0 amappl8 128 603 0 561 2 0 2 2 0 8 0 amappl7 120 675 0 667 1 0 1 1 0 8 0 amappl6 112 545 0 534 1 0 1 1 0 8 0 amappl5 104 905 0 896 1 0 1 1 0 8 0 amappl4 96 3377 0 3350 1 0 1 1 0 8 0 amappl3 88 1675 0 1666 1 0 1 1 0 8 0 amappl2 80 27867 0 27789 4 2 2 3 0 8 0 amappl1 72 77890 0 77461 29 20 9 20 0 8 0 amappl 80 8578 0 8540 1 0 1 1 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 64 150 0 21 3 0 3 3 0 8 0 uaddrrnd 24 3704 0 3679 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3704 0 3679 1 0 1 1 0 8 0 vmmpekpl 168 26198 0 26170 2 0 2 2 0 8 0 vmmpepl 168 453038 0 450887 339 237 102 143 0 357 6 vmsppl 272 3693 0 3679 4 3 1 2 0 8 0 pdppl 4096 7414 0 7378 7 2 5 6 0 8 0 pvpl 32 1272426 0 1251942 473 279 194 301 0 265 28 pmappl 200 3703 0 3689 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 880 0 244 19 0 19 19 0 8 0