uvm_fault(0xfffffd807f00b730, 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(0xfffffd807f00b730, 0x9b, 0, 1) -> e bpfioctl(31700,8020426c,ffff800022b8d550,1,ffff800020abe290) at bpfioctl+0xc7 sys/net/bpf.c:672 end trace frame: 0xffff800022b8d430, count: 0 ddb{0}> trace bpfioctl(31700,8020426c,ffff800022b8d550,1,ffff800020abe290) at bpfioctl+0xc7 sys/net/bpf.c:672 VOP_IOCTL(fffffd8066855290,8020426c,ffff800022b8d550,1,fffffd807f7c6ae0,ffff800020abe290) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd8066635ee8,8020426c,ffff800022b8d550,ffff800020abe290) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:536 sys_ioctl(ffff800020abe290,ffff800022b8d668,ffff800022b8d6b0) at sys_ioctl+0x5b9 syscall(ffff800022b8d730) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800022b8d730) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff14,0,3,d79c75d8010) at Xsyscall+0x128 end of kernel end trace frame: 0xd7bf8bf1260, count: -6 ddb{0}> show registers rdi 0xffffffff820fecdc bpfioctl+0xac rsi 0x11c rbp 0xffff800022b8d380 rbx 0x300 rdx 0x11d rcx 0xffff800023da4000 rax 0xffff800023da4000 r8 0xffff800020abe290 r9 0x5 r10 0x4 r11 0xdc7a881898e0177f r12 0x8020426c __kernel_virt_to_phys+0x20426c r13 0xffff800020abe290 r14 0 r15 0xffff800022b8d550 rip 0xffffffff820fecf7 bpfioctl+0xc7 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800022b8d310 ss 0x10 bpfioctl+0xc7: movzbl 0x9b(%r14),%ebx ddb{0}> show proc PROC (syz-executor.0) pid=108501 stat=onproc flags process=0 proc=4000000 pri=82, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff800020a5fb30,0xffff800020abec80 process=0xffff800020a4bc08 user=0xffff800022b88000, vmspace=0xfffffd807f00b730 estcpu=32, cpticks=0, pctcpu=0.1 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 95353 372238 34393 0 2 0 syz-executor.0 *95353 108501 34393 0 7 0x4000000 syz-executor.0 95353 104119 34393 0 3 0x4000000 tqbar syz-executor.0 34393 391821 38029 0 3 0x82 nanosleep syz-executor.0 75208 312744 0 0 3 0x14200 acct acct 28375 184429 38029 0 3 0x82 nanosleep syz-executor.1 86104 317173 0 0 3 0x14200 bored sosplice 38029 222751 79071 0 3 0x82 thrsleep syz-fuzzer 38029 215843 79071 0 3 0x4000082 thrsleep syz-fuzzer 38029 464000 79071 0 3 0x4000082 thrsleep syz-fuzzer 38029 504906 79071 0 3 0x4000082 thrsleep syz-fuzzer 38029 121399 79071 0 3 0x4000082 thrsleep syz-fuzzer 38029 112790 79071 0 3 0x4000082 thrsleep syz-fuzzer 38029 442481 79071 0 3 0x4000082 kqread syz-fuzzer 38029 347824 79071 0 3 0x4000082 thrsleep syz-fuzzer 38029 168507 79071 0 3 0x4000082 thrsleep syz-fuzzer 38029 430882 79071 0 3 0x4000082 thrsleep syz-fuzzer 79071 199747 54048 0 3 0x10008a pause ksh 54048 508131 85783 0 3 0x92 select sshd 32014 41717 1 0 3 0x100083 ttyin getty 85783 301950 1 0 3 0x80 select sshd 68351 431907 64775 74 3 0x100092 bpf pflogd 64775 38470 1 0 3 0x80 netio pflogd 37557 50880 31423 73 3 0x100090 kqread syslogd 31423 81093 1 0 3 0x100082 netio syslogd 34313 247931 1 77 3 0x100090 poll dhclient 43761 393630 1 0 3 0x80 poll dhclient 77127 329325 0 0 3 0x14200 pgzero zerothread 59808 388078 0 0 3 0x14200 aiodoned aiodoned 85380 131870 0 0 3 0x14200 syncer update 17154 410359 0 0 3 0x14200 cleaner cleaner 93698 150048 0 0 3 0x14200 reaper reaper 99647 118712 0 0 3 0x14200 pgdaemon pagedaemon 20575 49212 0 0 3 0x14200 bored crynlk 98989 124065 0 0 3 0x14200 bored crypto 69915 302503 0 0 3 0x40014200 acpi0 acpi0 24011 303133 0 0 3 0x40014200 idle1 1175 282138 0 0 3 0x14200 bored softnet 82815 513072 0 0 3 0x14200 bored systqmp 31063 505164 0 0 7 0x14200 systq 96433 306367 0 0 3 0x40014200 bored softclock 67532 204359 0 0 3 0x40014200 idle0 31953 254565 0 0 3 0x14200 bored smr 1 500331 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 95353 (syz-executor.0) thread 0xffff800020abe290 (108501) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82628c50) #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 9598 7267K 9130K 78643K 17826 0 0 pcb 13 8K 8K 78643K 323 0 0 rtable 80 8K 9K 78643K 1461 0 0 ifaddr 78 16K 17K 78643K 340 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1525 0 0 iov 0 0K 24K 78643K 251 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1240 78K 78K 78643K 3282 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 15 0 0 VM map 10 5K 5K 78643K 14 0 0 sem 12 0K 1K 78643K 297 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 5 13K 25K 78643K 1392 0 0 sigio 1 0K 0K 78643K 25 0 0 proc 61 63K 95K 78643K 884 0 0 subproc 32 2K 2K 78643K 136 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 1K 78643K 865 0 0 in_multi 11 0K 2K 78643K 549 0 0 ether_multi 1 0K 0K 78643K 12 0 0 mrt 0 0K 0K 78643K 5 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 419 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 119 87K 87K 78643K 5964 0 0 UVM aobj 123 8K 8K 78643K 129 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 334 0 0 NDP 20 0K 0K 78643K 105 0 0 temp 228 3565K 4204K 78643K 31326 0 0 kqueue 0 0K 0K 78643K 10 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 39 0 37 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 647 0 645 1 0 1 1 0 8 0 rtentry 112 177 0 153 2 0 2 2 0 8 0 unpcb 120 1372 0 1360 3 1 2 2 0 8 1 syncache 264 15 0 15 7 6 1 1 0 8 1 tcpqe 32 92 0 92 3 2 1 1 0 8 1 tcpcb 544 528 0 523 1 0 1 1 0 8 0 inpcb 280 2004 0 1996 9 7 2 3 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 23 0 23 1 0 1 1 0 8 1 pkpcb 40 2 0 2 2 2 0 1 0 8 0 ppxss 1128 41 0 41 6 5 1 1 0 8 1 pffrag 232 40 0 40 8 8 0 1 0 482 0 pffrnode 88 40 0 40 8 8 0 1 0 8 0 pffrent 40 980 0 980 8 8 0 1 0 8 0 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 24 137 0 59 1 0 1 1 0 8 0 pfstkey 112 137 0 59 3 0 3 3 0 8 0 pfstate 328 137 0 59 7 0 7 7 0 8 0 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 256 732 0 610 18 7 11 14 0 8 2 art_table 32 733 0 610 2 0 2 2 0 8 0 art_node 16 176 0 154 1 0 1 1 0 8 0 sysvmsgpl 40 86 0 74 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 295 0 285 1 0 1 1 0 8 0 shmpl 112 127 0 6 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 3515 0 2110 46 0 46 46 0 8 0 ffsino 272 3515 0 2110 95 0 95 95 0 8 0 nchpl 144 5808 0 4206 61 0 61 61 0 8 0 uvmvnodes 72 5312 0 0 97 0 97 97 0 8 0 vnodes 208 5312 0 0 280 0 280 280 0 8 0 namei 1024 19474 0 19474 3 2 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 8 0 0 1 0 1 1 0 8 0 vmpool 552 12 0 4 1 0 1 1 0 8 0 scxspl 192 19168 0 19168 14 12 2 7 0 8 2 plimitpl 152 140 0 132 1 0 1 1 0 8 0 sigapl 432 1574 0 1559 3 1 2 3 0 8 0 futexpl 56 33100 0 33100 1 0 1 1 0 8 1 knotepl 112 410 0 391 3 2 1 3 0 8 0 kqueuepl 104 383 0 381 1 0 1 1 0 8 0 pipepl 112 896 0 877 4 3 1 2 0 8 0 fdescpl 488 1575 0 1559 3 0 3 3 0 8 0 filepl 152 13865 0 13760 13 7 6 7 0 8 1 lockfpl 104 456 0 455 1 0 1 1 0 8 0 lockfspl 48 154 0 153 1 0 1 1 0 8 0 sessionpl 112 24 0 13 1 0 1 1 0 8 0 pgrppl 48 42 0 31 1 0 1 1 0 8 0 ucredpl 96 1343 0 1334 1 0 1 1 0 8 0 zombiepl 144 1559 0 1558 3 2 1 1 0 8 0 processpl 896 1592 0 1558 4 0 4 4 0 8 0 procpl 632 4834 0 4789 6 1 5 5 0 8 1 srpgc 64 12 0 12 5 4 1 1 0 8 1 sosppl 128 12 0 12 4 4 0 1 0 8 0 sockpl 384 4052 0 4030 12 7 5 5 0 8 2 mcl64k 65536 260 0 0 33 1 32 33 0 8 1 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 16 0 0 2 0 2 2 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 177 0 0 20 0 20 20 0 8 0 mtagpl 80 29 0 0 1 0 1 1 0 8 0 mbufpl 256 512 0 0 29 0 29 29 0 8 0 bufpl 256 10487 0 3439 441 0 441 441 0 8 0 anonpl 16 207124 0 189598 114 37 77 88 0 124 1 amapchunkpl 152 11838 0 11726 35 24 11 19 0 158 4 amappl16 192 9356 0 8349 96 45 51 63 0 8 0 amappl15 184 120 0 119 1 0 1 1 0 8 0 amappl14 176 186 0 184 2 1 1 1 0 8 0 amappl13 168 7 0 6 1 0 1 1 0 8 0 amappl12 160 78 0 76 2 1 1 1 0 8 0 amappl11 152 126 0 111 1 0 1 1 0 8 0 amappl10 144 916 0 910 1 0 1 1 0 8 0 amappl9 136 740 0 732 1 0 1 1 0 8 0 amappl8 128 292 0 259 3 1 2 2 0 8 0 amappl7 120 973 0 963 1 0 1 1 0 8 0 amappl6 112 126 0 114 1 0 1 1 0 8 0 amappl5 104 259 0 245 1 0 1 1 0 8 0 amappl4 96 1789 0 1759 1 0 1 1 0 8 0 amappl3 88 231 0 225 1 0 1 1 0 8 0 amappl2 80 11472 0 11401 4 2 2 3 0 8 0 amappl1 72 44791 0 44341 26 16 10 20 0 8 0 amappl 80 5219 0 5176 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 64 128 0 6 2 0 2 2 0 8 0 uaddrrnd 24 1587 0 1559 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1587 0 1559 1 0 1 1 0 8 0 vmmpekpl 168 16361 0 16322 2 0 2 2 0 8 0 vmmpepl 168 206544 0 204370 200 67 133 135 0 357 34 vmsppl 368 1574 0 1559 2 0 2 2 0 8 0 pdppl 4096 3181 0 3134 8 1 7 7 0 8 1 pvpl 32 562365 0 541127 243 48 195 207 0 265 21 pmappl 232 1586 0 1563 2 0 2 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 663 0 14 19 0 19 19 0 8 0