login: uvm_fault(0xfffffd807f00ba10, 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(0xfffffd807f00ba10, 0x9b, 0, 1) -> e bpfioctl(31700,80104267,ffff800020b299d0,1,ffff800020a5ec60) at bpfioctl+0xc7 sys/net/bpf.c:672 end trace frame: 0xffff800020b298b0, count: 0 ddb{1}> trace bpfioctl(31700,80104267,ffff800020b299d0,1,ffff800020a5ec60) at bpfioctl+0xc7 sys/net/bpf.c:672 VOP_IOCTL(fffffd807e84f768,80104267,ffff800020b299d0,1,fffffd807f7c69c0,ffff800020a5ec60) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd806d965c88,80104267,ffff800020b299d0,ffff800020a5ec60) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:536 sys_ioctl(ffff800020a5ec60,ffff800020b29ae8,ffff800020b29b30) at sys_ioctl+0x5b9 syscall(ffff800020b29bb0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800020b29bb0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,67a1b40c0c8,0,67a1b40c0a8,67a1b40c0a0) at Xsyscall+0x128 end of kernel end trace frame: 0x67c6c667c70, count: -6 ddb{1}> show registers rdi 0x100 rsi 0x300 rbp 0xffff800020b29800 rbx 0x300 rdx 0xffff800020b299d0 rcx 0x1 rax 0 r8 0xffff800020a5ec60 r9 0x5 r10 0x9d09e084c90c9eb r11 0x3a6dadfec3ac148 r12 0x80104267 __kernel_virt_to_phys+0x104267 r13 0xffff800020a5ec60 r14 0 r15 0xffff800020b299d0 rip 0xffffffff820fecf7 bpfioctl+0xc7 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020b29790 ss 0x10 bpfioctl+0xc7: movzbl 0x9b(%r14),%ebx ddb{1}> show proc PROC (syz-executor2152) pid=489659 stat=onproc flags process=0 proc=4000000 pri=52, usrpri=52, nice=20 forw=0xffffffffffffffff, list=0xffff800020a5e280,0xffff800020ac13e0 process=0xffff800020addc00 user=0xffff800020b24000, vmspace=0xfffffd807f00ba10 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 89171 210521 67741 0 7 0 syz-executor2152 *89171 489659 67741 0 7 0x4000000 syz-executor2152 89171 133080 67741 0 3 0x4000000 tqbar syz-executor2152 67741 433914 63926 0 3 0x80 nanosleep syz-executor2152 53423 168063 63926 0 3 0x80 nanosleep syz-executor2152 63926 127059 44334 0 3 0x82 nanosleep syz-executor2152 44334 3052 79917 0 3 0x10008a pause ksh 79917 420261 97534 0 3 0x92 select sshd 15460 454608 1 0 3 0x100083 ttyin getty 97534 396000 1 0 3 0x80 select sshd 43026 42652 15792 74 3 0x100092 bpf pflogd 15792 148394 1 0 3 0x80 netio pflogd 41606 165094 60385 73 3 0x100090 kqread syslogd 60385 41420 1 0 3 0x100082 netio syslogd 22753 313517 1 77 3 0x100090 poll dhclient 29715 24990 1 0 3 0x80 poll dhclient 3002 473659 0 0 2 0x14200 zerothread 40840 505303 0 0 3 0x14200 aiodoned aiodoned 51439 19642 0 0 3 0x14200 syncer update 22841 434352 0 0 3 0x14200 cleaner cleaner 24718 164826 0 0 3 0x14200 reaper reaper 28926 429306 0 0 3 0x14200 pgdaemon pagedaemon 41200 161171 0 0 3 0x14200 bored crynlk 44760 459780 0 0 3 0x14200 bored crypto 83927 99745 0 0 3 0x40014200 acpi0 acpi0 40212 351269 0 0 3 0x40014200 idle1 58977 209078 0 0 3 0x14200 bored softnet 68482 378981 0 0 3 0x14200 bored systqmp 41066 213933 0 0 2 0x14200 systq 42570 424732 0 0 3 0x40014200 bored softclock 34106 302700 0 0 3 0x40014200 idle0 1269 117803 0 0 3 0x14200 pause smr 1 263125 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 89171 (syz-executor2152) thread 0xffff800020a5ec60 (489659) 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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9481 6649K 7041K 78643K 11730 0 0 pcb 13 8K 8K 78643K 13 0 0 rtable 61 2K 2K 78643K 669 0 0 ifaddr 34 13K 15K 78643K 448 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1467 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1189 75K 75K 78643K 1518 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 1K 78643K 2 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 2 0K 0K 78643K 2 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 1 0K 0K 78643K 1 0 0 proc 59 63K 71K 78643K 344 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 11 0K 0K 78643K 11 0 0 ether_multi 1 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 18 79K 79K 78643K 18 0 0 exec 0 0K 1K 78643K 179 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 69 19K 19K 78643K 1135 0 0 UVM aobj 2 2K 2K 78643K 2 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 NDP 6 0K 0K 78643K 141 0 0 temp 54 3544K 3608K 78643K 3242 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 2 0 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 15 0 13 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 120 141 0 129 1 0 1 1 0 8 0 syncache 264 5 0 5 2 1 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 29 0 23 1 0 1 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 8 0 2 1 0 1 1 0 8 0 pfstkey 112 8 0 2 1 0 1 1 0 8 0 pfstate 328 8 0 2 1 0 1 1 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 97 0 0 7 0 7 7 0 8 0 art_table 32 98 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1401 0 17 45 0 45 45 0 8 0 ffsino 272 1401 0 17 93 0 93 93 0 8 0 nchpl 144 1588 0 44 58 0 58 58 0 8 0 uvmvnodes 72 1687 0 0 31 0 31 31 0 8 0 vnodes 208 1687 0 0 89 0 89 89 0 8 0 namei 1024 4313 0 4313 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 2662 0 2662 8 5 3 7 0 8 3 plimitpl 152 16 0 8 1 0 1 1 0 8 0 sigapl 432 276 0 261 2 0 2 2 0 8 0 futexpl 56 1016 0 1016 1 0 1 1 0 8 1 knotepl 112 5 0 0 1 0 1 1 0 8 0 kqueuepl 104 1 0 0 1 0 1 1 0 8 0 pipepl 112 134 0 127 3 2 1 1 0 8 0 fdescpl 488 277 0 261 3 0 3 3 0 8 0 filepl 152 1396 0 1343 3 0 3 3 0 8 0 lockfpl 104 5 0 4 1 0 1 1 0 8 0 lockfspl 48 3 0 2 1 0 1 1 0 8 0 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 52 0 43 1 0 1 1 0 8 0 zombiepl 144 261 0 260 3 2 1 1 0 8 0 processpl 896 292 0 260 4 0 4 4 0 8 0 procpl 632 478 0 444 4 0 4 4 0 8 1 sockpl 384 185 0 165 3 0 3 3 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 75 0 0 9 0 9 9 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 97 0 0 6 0 6 6 0 8 0 bufpl 256 2185 0 278 120 0 120 120 0 8 0 anonpl 16 23588 0 22295 9 3 6 7 0 124 0 amapchunkpl 152 970 0 926 3 0 3 3 0 158 0 amappl16 192 160 0 154 1 0 1 1 0 8 0 amappl14 176 15 0 14 3 2 1 1 0 8 0 amappl12 160 1 0 1 1 1 0 1 0 8 0 amappl11 152 46 0 31 1 0 1 1 0 8 0 amappl10 144 6 0 4 1 0 1 1 0 8 0 amappl9 136 448 0 444 1 0 1 1 0 8 0 amappl8 128 171 0 163 1 0 1 1 0 8 0 amappl7 120 19 0 17 1 0 1 1 0 8 0 amappl6 112 60 0 54 1 0 1 1 0 8 0 amappl5 104 130 0 117 1 0 1 1 0 8 0 amappl4 96 469 0 443 1 0 1 1 0 8 0 amappl3 88 102 0 96 1 0 1 1 0 8 0 amappl2 80 1394 0 1329 2 0 2 2 0 8 0 amappl1 72 16405 0 15968 15 5 10 15 0 8 0 amappl 80 670 0 642 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 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 277 0 261 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 277 0 261 1 0 1 1 0 8 0 vmmpekpl 168 6061 0 6036 2 0 2 2 0 8 0 vmmpepl 168 35339 0 34417 56 11 45 47 0 357 1 vmsppl 368 276 0 261 2 0 2 2 0 8 0 pdppl 4096 561 0 522 6 0 6 6 0 8 0 pvpl 32 88225 0 85115 36 8 28 28 0 265 2 pmappl 232 276 0 261 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 255 0 4 8 0 8 8 0 8 0 ddb{1}>