login: uvm_fault(0xfffffd807f00ca10, 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(0xfffffd807f00ca10, 0x9b, 0, 1) -> e bpfioctl(31700,20004269,ffff800023dc7a60,2,ffff800020ab13d8) at bpfioctl+0xc7 sys/net/bpf.c:674 end trace frame: 0xffff800023dc7940, count: 0 ddb{0}> trace bpfioctl(31700,20004269,ffff800023dc7a60,2,ffff800020ab13d8) at bpfioctl+0xc7 sys/net/bpf.c:674 VOP_IOCTL(fffffd806447e690,20004269,ffff800023dc7a60,2,fffffd807f7c67e0,ffff800020ab13d8) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd80672304d8,20004269,ffff800023dc7a60,ffff800020ab13d8) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 sys_ioctl(ffff800020ab13d8,ffff800023dc7b78,ffff800023dc7bc0) at sys_ioctl+0x5b9 syscall(ffff800023dc7c40) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800023dc7c40) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff0f,0,2,da044db70e0) at Xsyscall+0x128 end of kernel end trace frame: 0xda2db045820, count: -6 ddb{0}> show registers rdi 0xffffffff8103764c bpfioctl+0xac rsi 0x1b7 rbp 0xffff800023dc7890 rbx 0x300 rdx 0x1b8 rcx 0xffff800023bb0000 rax 0xffff800023bb0000 r8 0xffff800020ab13d8 r9 0x5 r10 0x4 r11 0x9b1f2dfd2e572a8c r12 0x20004269 r13 0xffff800020ab13d8 r14 0 r15 0xffff800023dc7a60 rip 0xffffffff81037667 bpfioctl+0xc7 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800023dc7820 ss 0x10 bpfioctl+0xc7: movzbl 0x9b(%r14),%ebx ddb{0}> show proc PROC (syz-executor.0) pid=46276 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ab1160,0xffff800020ab0ef8 process=0xffff800020adce00 user=0xffff800023dc2000, vmspace=0xfffffd807f00ca10 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 18940 479299 6767 0 2 0 syz-executor.0 18940 254790 6767 0 2 0x4000000 syz-executor.0 *18940 46276 6767 0 7 0x4000000 syz-executor.0 18940 311471 6767 0 3 0x4000080 fsleep syz-executor.0 81523 339534 19965 0 2 0 syz-executor.1 81523 419218 19965 0 2 0x4000000 syz-executor.1 81523 399345 19965 0 3 0x4000080 fsleep syz-executor.1 6767 48775 76296 0 3 0x82 nanosleep syz-executor.0 72503 346653 1 0 3 0x100083 ttyin getty 19965 383105 76296 0 3 0x82 nanosleep syz-executor.1 35946 95173 0 0 3 0x14200 bored sosplice 76296 104280 67832 0 3 0x82 thrsleep syz-fuzzer 76296 36648 67832 0 3 0x4000082 thrsleep syz-fuzzer 76296 15437 67832 0 3 0x4000082 thrsleep syz-fuzzer 76296 183512 67832 0 3 0x4000082 thrsleep syz-fuzzer 76296 230312 67832 0 3 0x4000082 thrsleep syz-fuzzer 76296 294116 67832 0 3 0x4000082 thrsleep syz-fuzzer 76296 505694 67832 0 3 0x4000082 thrsleep syz-fuzzer 76296 418640 67832 0 3 0x4000082 kqread syz-fuzzer 76296 252725 67832 0 3 0x4000082 thrsleep syz-fuzzer 76296 424332 67832 0 3 0x4000082 thrsleep syz-fuzzer 67832 378516 14236 0 3 0x10008a pause ksh 14236 378505 58052 0 3 0x92 select sshd 58052 383188 1 0 3 0x80 select sshd 30192 61311 37615 74 3 0x100092 bpf pflogd 37615 312471 1 0 3 0x80 netio pflogd 59463 449898 13794 73 3 0x100090 kqread syslogd 13794 198186 1 0 3 0x100082 netio syslogd 54917 174559 1 77 3 0x100090 poll dhclient 68146 144858 1 0 7 0 dhclient 37364 316327 0 0 2 0x14200 zerothread 34589 489077 0 0 3 0x14200 aiodoned aiodoned 96164 282151 0 0 3 0x14200 syncer update 37410 353296 0 0 3 0x14200 cleaner cleaner 60649 522626 0 0 3 0x14200 reaper reaper 3903 255616 0 0 3 0x14200 pgdaemon pagedaemon 21215 411572 0 0 3 0x14200 bored crynlk 98083 191572 0 0 3 0x14200 bored crypto 45517 105377 0 0 3 0x40014200 acpi0 acpi0 7759 207071 0 0 3 0x40014200 idle1 55837 421270 0 0 3 0x14200 bored softnet 15029 90008 0 0 3 0x14200 bored systqmp 89441 467926 0 0 3 0x14200 bored systq 11522 232808 0 0 3 0x40014200 bored softclock 67028 416856 0 0 3 0x40014200 idle0 17831 440769 0 0 3 0x14200 bored smr 1 498226 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 18940 (syz-executor.0) thread 0xffff800020ab13d8 (46276) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8266cba8) #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 9553 6626K 7207K 78643K 12791 0 0 pcb 13 8K 8K 78643K 87 0 0 rtable 108 4K 4K 78643K 389 0 0 ifaddr 65 13K 14K 78643K 131 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1495 0 0 iov 0 0K 12K 78643K 49 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1222 77K 77K 78643K 1946 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 16 0 0 VM map 2 1K 1K 78643K 4 0 0 sem 12 0K 0K 78643K 112 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12765 0 0 file desc 6 17K 25K 78643K 668 0 0 sigio 0 0K 0K 78643K 2 0 0 proc 61 63K 95K 78643K 602 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 55 0 0 in_multi 33 2K 2K 78643K 66 0 0 ether_multi 1 0K 0K 78643K 1 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 66 291K 291K 78643K 66 0 0 exec 0 0K 1K 78643K 270 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 102 21K 25K 78643K 3219 0 0 UVM aobj 32 6K 6K 78643K 41 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 99 0 0 NDP 16 0K 0K 78643K 37 0 0 temp 186 3556K 3623K 78643K 8681 0 0 kqueue 0 0K 0K 78643K 4 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 10 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 57 0 55 1 0 1 1 0 8 0 rtentry 112 65 0 21 2 0 2 2 0 8 0 unpcb 120 485 0 473 2 0 2 2 0 8 1 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 6494 0 6494 1 1 0 1 0 8 0 tcpcb 544 513 0 509 3 2 1 2 0 8 0 inpcb 280 1069 0 1062 2 1 1 2 0 8 0 nd6 48 8 0 4 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1128 12 0 12 3 3 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 25 0 8 1 0 1 1 0 8 0 pfstkey 112 25 0 8 1 0 1 1 0 8 0 pfstate 328 25 0 8 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 256 301 0 86 14 0 14 14 0 8 0 art_table 32 302 0 86 2 0 2 2 0 8 0 art_node 16 64 0 24 1 0 1 1 0 8 0 sysvmsgpl 40 122 0 119 1 0 1 1 0 8 0 semapl 112 106 0 96 1 0 1 1 0 8 0 shmpl 112 39 0 9 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2391 0 987 46 0 46 46 0 8 0 ffsino 272 2391 0 987 95 0 95 95 0 8 0 nchpl 144 3644 0 2033 61 0 61 61 0 8 0 uvmvnodes 72 2993 0 0 55 0 55 55 0 8 0 vnodes 208 2993 0 0 158 0 158 158 0 8 0 namei 1024 10949 0 10949 3 2 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vmpool 552 2 0 2 1 1 0 1 0 8 0 scxspl 192 9389 0 9389 10 9 1 7 0 8 1 plimitpl 152 55 0 47 1 0 1 1 0 8 0 sigapl 432 865 0 849 3 1 2 3 0 8 0 futexpl 56 12267 0 12265 2 1 1 1 0 8 0 knotepl 112 234 0 215 2 1 1 2 0 8 0 kqueuepl 104 142 0 140 1 0 1 1 0 8 0 pipepl 112 464 0 445 2 1 1 2 0 8 0 fdescpl 488 866 0 849 3 0 3 3 0 8 0 filepl 152 6250 0 6144 8 2 6 6 0 8 1 lockfpl 104 206 0 205 1 0 1 1 0 8 0 lockfspl 48 81 0 80 1 0 1 1 0 8 0 sessionpl 112 23 0 12 1 0 1 1 0 8 0 pgrppl 48 26 0 15 1 0 1 1 0 8 0 ucredpl 96 664 0 655 1 0 1 1 0 8 0 zombiepl 144 849 0 849 3 2 1 1 0 8 1 processpl 896 882 0 849 4 0 4 4 0 8 0 procpl 632 2327 0 2280 6 1 5 5 0 8 1 srpgc 64 6 0 6 2 1 1 1 0 8 1 sosppl 128 13 0 13 2 2 0 1 0 8 0 sockpl 384 1622 0 1601 10 3 7 7 0 8 4 mcl64k 65536 259 0 0 33 0 33 33 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 11 0 0 2 0 2 2 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 133 0 0 16 0 16 16 0 8 0 mtagpl 80 12 0 0 1 0 1 1 0 8 0 mbufpl 256 413 0 0 22 0 22 22 0 8 0 bufpl 256 7125 0 1319 363 0 363 363 0 8 0 anonpl 16 91064 0 77797 76 3 73 74 0 124 14 amapchunkpl 152 5141 0 5015 10 3 7 9 0 158 0 amappl16 192 3865 0 3092 52 5 47 51 0 8 8 amappl15 184 303 0 302 1 0 1 1 0 8 0 amappl14 176 46 0 44 1 0 1 1 0 8 0 amappl13 168 10 0 9 3 2 1 1 0 8 0 amappl12 160 52 0 51 2 1 1 1 0 8 0 amappl11 152 58 0 43 1 0 1 1 0 8 0 amappl10 144 265 0 259 1 0 1 1 0 8 0 amappl9 136 659 0 650 1 0 1 1 0 8 0 amappl8 128 200 0 175 1 0 1 1 0 8 0 amappl7 120 312 0 303 1 0 1 1 0 8 0 amappl6 112 72 0 62 1 0 1 1 0 8 0 amappl5 104 192 0 178 1 0 1 1 0 8 0 amappl4 96 1097 0 1063 1 0 1 1 0 8 0 amappl3 88 184 0 178 1 0 1 1 0 8 0 amappl2 80 6182 0 6102 3 1 2 3 0 8 0 amappl1 72 28882 0 28428 26 16 10 20 0 8 0 amappl 80 2624 0 2579 2 1 1 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 dma64 64 259 0 259 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 40 0 9 1 0 1 1 0 8 0 uaddrrnd 24 868 0 849 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 868 0 849 1 0 1 1 0 8 0 vmmpekpl 168 11030 0 10994 2 0 2 2 0 8 0 vmmpepl 168 112692 0 110672 154 42 112 112 0 357 22 vmsppl 368 865 0 849 2 0 2 2 0 8 0 pdppl 4096 1743 0 1702 7 1 6 6 0 8 0 pvpl 32 274701 0 258140 194 17 177 177 0 265 36 pmappl 232 867 0 851 2 1 1 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 569 0 8 17 0 17 17 0 8 0