uvm_fault(0xfffffd807f00bb80, 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(0xfffffd807f00bb80, 0x9b, 0, 1) -> e bpfioctl(31700,20004268,ffff800023bc8f70,2,ffff800020aceef0) at bpfioctl+0xc7 sys/net/bpf.c:672 end trace frame: 0xffff800023bc8e50, count: 0 ddb{0}> trace bpfioctl(31700,20004268,ffff800023bc8f70,2,ffff800020aceef0) at bpfioctl+0xc7 sys/net/bpf.c:672 VOP_IOCTL(fffffd8065e51768,20004268,ffff800023bc8f70,2,fffffd807f7c67e0,ffff800020aceef0) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd806530e1d8,20004268,ffff800023bc8f70,ffff800020aceef0) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:536 sys_ioctl(ffff800020aceef0,ffff800023bc9088,ffff800023bc90d0) at sys_ioctl+0x5b9 syscall(ffff800023bc9150) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800023bc9150) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff03,0,2,207ab3d4010) at Xsyscall+0x128 end of kernel end trace frame: 0x209c5090b30, count: -6 ddb{0}> show registers rdi 0xffffffff82141c8c bpfioctl+0xac rsi 0xf5 rbp 0xffff800023bc8da0 rbx 0x300 rdx 0xf6 rcx 0xffff800021b6e000 rax 0xffff800021b6e000 r8 0xffff800020aceef0 r9 0x5 r10 0x4 r11 0xbd6454e3534d0bc0 r12 0x20004268 r13 0xffff800020aceef0 r14 0 r15 0xffff800023bc8f70 rip 0xffffffff82141ca7 bpfioctl+0xc7 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800023bc8d30 ss 0x10 bpfioctl+0xc7: movzbl 0x9b(%r14),%ebx ddb{0}> show proc PROC (syz-executor.1) pid=508258 stat=onproc flags process=0 proc=4000000 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff800020acf168,0xffff800020acfb58 process=0xffff800020adc700 user=0xffff800023bc4000, vmspace=0xfffffd807f00bb80 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 70605 263349 79308 0 2 0 syz-executor.1 *70605 508258 79308 0 7 0x4000000 syz-executor.1 70605 456951 79308 0 3 0x4000000 tqbar syz-executor.1 46183 101440 59636 0 2 0x480 syz-executor.0 46183 493490 59636 0 3 0x4000080 wsevent_read syz-executor.0 46183 363543 59636 0 3 0x4000080 fsleep syz-executor.0 59636 519460 40760 0 3 0x82 nanosleep syz-executor.0 77327 218193 0 0 3 0x14200 bored sosplice 4082 448399 0 0 3 0x14200 acct acct 79308 69875 40760 0 2 0x482 syz-executor.1 40760 215917 50149 0 2 0x482 syz-fuzzer 40760 30700 50149 0 2 0x4000482 syz-fuzzer 40760 343928 50149 0 3 0x4000082 thrsleep syz-fuzzer 40760 322414 50149 0 3 0x4000082 thrsleep syz-fuzzer 40760 523205 50149 0 3 0x4000082 thrsleep syz-fuzzer 40760 237554 50149 0 3 0x4000082 thrsleep syz-fuzzer 40760 484628 50149 0 3 0x4000082 thrsleep syz-fuzzer 40760 48531 50149 0 3 0x4000082 kqread syz-fuzzer 40760 249687 50149 0 3 0x4000082 thrsleep syz-fuzzer 40760 294958 50149 0 3 0x4000082 thrsleep syz-fuzzer 50149 148054 27500 0 3 0x10008a pause ksh 27500 491950 9001 0 3 0x92 select sshd 86398 301244 1 0 3 0x100083 ttyin getty 9001 280104 1 0 3 0x80 select sshd 13152 470428 33691 74 3 0x100092 bpf pflogd 33691 173109 1 0 3 0x80 netio pflogd 5596 6441 37089 73 3 0x100090 kqread syslogd 37089 58303 1 0 3 0x100082 netio syslogd 58230 194056 1 77 3 0x100090 poll dhclient 36578 422600 1 0 3 0x80 poll dhclient 33709 448917 0 0 3 0x14200 pgzero zerothread 52744 25417 0 0 3 0x14200 aiodoned aiodoned 27305 231684 0 0 3 0x14200 syncer update 54097 30584 0 0 3 0x14200 cleaner cleaner 93223 420582 0 0 3 0x14200 reaper reaper 59032 170178 0 0 3 0x14200 pgdaemon pagedaemon 81916 409782 0 0 3 0x14200 bored crynlk 77447 500331 0 0 3 0x14200 bored crypto 62849 355378 0 0 3 0x40014200 acpi0 acpi0 68773 10441 0 0 3 0x40014200 idle1 46537 362772 0 0 3 0x14200 bored softnet 36841 438065 0 0 3 0x14200 bored systqmp 45983 516155 0 0 7 0x14200 systq 27967 468555 0 0 3 0x40014200 bored softclock 81377 61365 0 0 3 0x40014200 idle0 65824 388788 0 0 3 0x14200 bored smr 1 275007 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 70605 (syz-executor.1) thread 0xffff800020aceef0 (508258) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff826329b0) #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 9540 6556K 7586K 78643K 11837 0 0 pcb 13 8K 8K 78643K 106 0 0 rtable 92 7K 8K 78643K 462 0 0 ifaddr 62 13K 14K 78643K 129 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1496 0 0 iov 0 0K 16K 78643K 48 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1235 78K 78K 78643K 1596 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 9 0 0 VM map 3 1K 1K 78643K 7 0 0 sem 12 0K 0K 78643K 99 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 6 17K 25K 78643K 389 0 0 proc 60 63K 95K 78643K 544 0 0 subproc 32 2K 2K 78643K 68 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 15 0 0 in_multi 22 1K 2K 78643K 78 0 0 ether_multi 1 0K 0K 78643K 5 0 0 mrt 0 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 54 238K 238K 78643K 54 0 0 exec 0 0K 1K 78643K 288 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 108 38K 38K 78643K 2370 0 0 UVM aobj 25 2K 2K 78643K 25 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 89 0 0 NDP 14 0K 0K 78643K 38 0 0 temp 180 3558K 4188K 78643K 25277 0 0 kqueue 0 0K 0K 78643K 2 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 18 0 14 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 31 0 29 1 0 1 1 0 8 0 rtentry 112 79 0 45 2 0 2 2 0 8 0 unpcb 120 310 0 298 1 0 1 1 0 8 0 syncache 264 7 0 7 3 3 0 1 0 8 0 tcpqe 32 84 0 84 2 2 0 1 0 8 0 tcpcb 544 143 0 138 1 0 1 1 0 8 0 inpcb 280 578 0 567 3 1 2 2 0 8 1 nd6 48 8 0 6 1 0 1 1 0 8 0 ppxss 1128 9 0 9 1 1 0 1 0 8 0 pffrag 232 3 0 3 2 1 1 1 0 482 1 pffrnode 88 3 0 3 2 1 1 1 0 8 1 pffrent 40 49 0 49 2 1 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 33 0 12 1 0 1 1 0 8 0 pfstkey 112 33 0 12 1 0 1 1 0 8 0 pfstate 328 33 0 12 2 0 2 2 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 256 322 0 149 15 0 15 15 0 8 2 art_table 32 323 0 149 2 0 2 2 0 8 0 art_node 16 78 0 47 1 0 1 1 0 8 0 sysvmsgpl 40 24 0 11 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 97 0 87 1 0 1 1 0 8 0 shmpl 112 23 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2021 0 609 46 0 46 46 0 8 0 ffsino 272 2021 0 609 95 0 95 95 0 8 0 nchpl 144 2801 0 1199 61 0 61 61 0 8 0 uvmvnodes 72 2352 0 0 43 0 43 43 0 8 0 vnodes 208 2352 0 0 124 0 124 124 0 8 0 namei 1024 9450 0 9450 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 552 5 0 4 3 2 1 1 0 8 0 scxspl 192 8977 0 8977 13 9 4 7 0 8 4 plimitpl 152 33 0 25 1 0 1 1 0 8 0 sigapl 432 583 0 567 3 1 2 3 0 8 0 futexpl 56 8060 0 8059 1 0 1 1 0 8 0 knotepl 112 129 0 110 1 0 1 1 0 8 0 kqueuepl 104 97 0 95 1 0 1 1 0 8 0 pipepl 112 372 0 353 2 0 2 2 0 8 1 fdescpl 488 584 0 567 3 0 3 3 0 8 0 filepl 152 4532 0 4424 9 3 6 6 0 8 1 lockfpl 104 187 0 186 1 0 1 1 0 8 0 lockfspl 48 61 0 60 1 0 1 1 0 8 0 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 57 0 46 1 0 1 1 0 8 0 ucredpl 96 440 0 430 1 0 1 1 0 8 0 zombiepl 144 567 0 567 1 0 1 1 0 8 1 processpl 896 601 0 567 4 0 4 4 0 8 0 procpl 632 1482 0 1435 5 0 5 5 0 8 0 srpgc 64 7 0 7 3 2 1 1 0 8 1 sosppl 128 8 0 8 2 2 0 1 0 8 0 sockpl 384 927 0 902 7 3 4 4 0 8 1 mcl64k 65536 266 0 0 34 0 34 34 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 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 9 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 167 0 0 20 0 20 20 0 8 0 mtagpl 80 46 0 0 1 0 1 1 0 8 0 mbufpl 256 453 0 0 27 0 27 27 0 8 0 bufpl 256 7666 0 1319 397 0 397 397 0 8 0 anonpl 16 92702 0 74556 93 5 88 89 0 124 14 amapchunkpl 152 3622 0 3502 9 2 7 9 0 158 0 amappl16 192 3725 0 2701 79 20 59 63 0 8 7 amappl15 184 97 0 97 1 1 0 1 0 8 0 amappl14 176 41 0 39 1 0 1 1 0 8 0 amappl13 168 4 0 3 1 0 1 1 0 8 0 amappl12 160 287 0 282 2 1 1 1 0 8 0 amappl11 152 56 0 41 1 0 1 1 0 8 0 amappl10 144 20 0 14 1 0 1 1 0 8 0 amappl9 136 644 0 638 1 0 1 1 0 8 0 amappl8 128 193 0 170 1 0 1 1 0 8 0 amappl7 120 52 0 46 1 0 1 1 0 8 0 amappl6 112 75 0 65 1 0 1 1 0 8 0 amappl5 104 428 0 411 1 0 1 1 0 8 0 amappl4 96 748 0 715 2 1 1 2 0 8 0 amappl3 88 233 0 226 1 0 1 1 0 8 0 amappl2 80 3673 0 3593 3 1 2 3 0 8 0 amappl1 72 23118 0 22663 26 16 10 20 0 8 0 amappl 80 1779 0 1735 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 24 0 0 1 0 1 1 0 8 0 uaddrrnd 24 589 0 567 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 589 0 567 1 0 1 1 0 8 0 vmmpekpl 168 8814 0 8776 2 0 2 2 0 8 0 vmmpepl 168 82457 0 80188 152 30 122 135 0 357 22 vmsppl 368 583 0 567 2 0 2 2 0 8 0 pdppl 4096 1185 0 1143 6 0 6 6 0 8 0 pvpl 32 264932 0 243774 212 9 203 207 0 265 32 pmappl 232 588 0 571 4 2 2 2 0 8 1 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 610 0 3 18 0 18 18 0 8 0