login: uvm_fault(0xfffffd803f013440, 0x8, 0, 1) -> e kernel: page fault trap, code=0 Stopped at filt_bpfrdetach+0x48: movq 0x8(%r15),%r12 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd803f013440, 0x8, 0, 1) -> e filt_bpfrdetach(fffffd80363af540) at filt_bpfrdetach+0x48 sys/net/bpf.c:1199 end trace frame: 0xffff800014942360, count: 0 ddb> trace filt_bpfrdetach(fffffd80363af540) at filt_bpfrdetach+0x48 sys/net/bpf.c:1199 knote_fdclose(ffff8000ffff5648,8) at knote_fdclose+0x96 knote_remove sys/kern/kern_event.c:953 [inline] knote_fdclose(ffff8000ffff5648,8) at knote_fdclose+0x96 sys/kern/kern_event.c:973 fdfree(ffff8000ffff5648) at fdfree+0xed sys/kern/kern_descrip.c:1195 exit1(ffff8000ffff5648,0,1) at exit1+0x32f sys/kern/kern_exit.c:196 sys_exit(ffff8000ffff5648,ffff800014942480,ffff8000149424d0) at sys_exit+0x17 sys/kern/kern_exit.c:94 syscall(ffff800014942550) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,1,0,1,0,7f7ffffc2754) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc2720, count: -7 ddb> show registers rdi 0xfffffd80363af540 rsi 0x8 rbp 0xffff800014942300 rbx 0x8 rdx 0x20 rcx 0xfffffd80331f3a10 rax 0xffffffff824f8e98 bpfread_filtops r8 0 r9 0x5 r10 0xa8d62566123c86c5 r11 0x133931cff2816dd9 r12 0xffff800000a73b00 r13 0xfffffd8036223b60 r14 0xfffffd80363af540 r15 0 rip 0xffffffff8210ac88 filt_bpfrdetach+0x48 cs 0x8 rflags 0x10207 __ALIGN_SIZE+0xf207 rsp 0xffff8000149422d0 ss 0x10 filt_bpfrdetach+0x48: movq 0x8(%r15),%r12 ddb> show proc PROC (syz-executor.1) pid=10860 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=52, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff93c8,0xffffffff8255d430 process=0xffff8000ffff70f0 user=0xffff80001493d000, vmspace=0xfffffd803f013440 estcpu=2, cpticks=5, pctcpu=0.19 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 35332 284917 7707 0 2 0x482 syz-executor.1 76467 20776 7707 0 2 0x482 syz-executor.0 7707 195798 226 0 3 0x82 thrsleep syz-execprog 7707 319505 226 0 3 0x4000082 thrsleep syz-execprog 7707 492290 226 0 3 0x4000082 thrsleep syz-execprog 7707 375543 226 0 3 0x4000082 thrsleep syz-execprog 7707 78307 226 0 3 0x4000082 thrsleep syz-execprog 7707 2250 226 0 3 0x4000082 kqread syz-execprog 7707 6963 226 0 3 0x4000082 thrsleep syz-execprog 226 29519 84932 0 3 0x10008a pause ksh 84932 417011 64388 0 3 0x92 select sshd 90876 471069 1 0 3 0x100083 ttyin getty 64388 39501 1 0 3 0x80 select sshd 12347 327039 4469 73 2 0x100090 syslogd 4469 383775 1 0 3 0x100082 netio syslogd 9390 411699 1 77 3 0x100090 poll dhclient 85330 429855 1 0 3 0x80 poll dhclient 37839 301561 0 0 2 0x14200 zerothread 87455 305127 0 0 3 0x14200 aiodoned aiodoned 60803 75566 0 0 3 0x14200 syncer update 63530 304323 0 0 3 0x14200 cleaner cleaner 54009 122194 0 0 3 0x14200 reaper reaper 75939 46059 0 0 3 0x14200 pgdaemon pagedaemon 74476 447156 0 0 3 0x14200 bored crynlk 42127 302813 0 0 3 0x14200 bored crypto 24341 88781 0 0 3 0x40014200 acpi0 acpi0 87791 464846 0 0 3 0x14200 bored softnet 91851 359794 0 0 3 0x14200 bored systqmp 56306 114780 0 0 3 0x14200 bored systq 64599 243290 0 0 3 0x40014200 bored softclock 16915 426941 0 0 3 0x40014200 idle0 24586 462229 0 0 3 0x14200 bored smr 1 7523 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 9440 6311K 6632K 78643K 10561 0 0 pcb 13 8K 8K 78643K 13 0 0 rtable 65 2K 3K 78643K 203 0 0 ifaddr 22 7K 9K 78643K 35 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 15 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1191 75K 75K 78643K 1205 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 0K 0K 78643K 2 0 0 sem 2 0K 0K 78643K 2 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 4 12K 24K 78643K 35 0 0 proc 47 38K 63K 78643K 347 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 11 0K 2K 78643K 33 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 185 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 76 19K 20K 78643K 903 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 3 0K 0K 78643K 9 0 0 temp 37 3537K 3589K 78643K 3193 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 6 0 4 1 0 1 1 0 8 0 rtpcb 80 19 0 17 1 0 1 1 0 8 0 rtentry 112 45 0 21 2 0 2 2 0 8 0 unpcb 120 31 0 23 1 0 1 1 0 8 0 syncache 264 5 0 5 2 2 0 1 0 8 0 tcpcb 544 8 0 5 1 0 1 1 0 8 0 inpcb 280 30 0 24 1 0 1 1 0 8 0 nd6 48 4 0 4 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 213 0 90 14 0 14 14 0 8 4 art_table 32 214 0 90 2 0 2 2 0 8 0 art_node 16 44 0 22 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1424 0 21 46 0 46 46 0 8 0 ffsino 240 1424 0 21 83 0 83 83 0 8 0 nchpl 144 1669 0 48 61 0 61 61 0 8 0 uvmvnodes 72 1451 0 0 27 0 27 27 0 8 0 vnodes 208 1451 0 0 77 0 77 77 0 8 0 namei 1024 3983 0 3983 2 1 1 1 0 8 1 scxspl 192 4181 0 4181 9 6 3 7 0 8 3 plimitpl 152 15 0 8 1 0 1 1 0 8 0 sigapl 432 211 0 198 2 0 2 2 0 8 0 futexpl 56 135 0 135 1 0 1 1 0 8 1 knotepl 112 69 0 46 1 0 1 1 0 8 0 kqueuepl 104 26 0 14 1 0 1 1 0 8 0 pipepl 112 146 0 127 2 1 1 1 0 8 0 fdescpl 424 212 0 198 2 0 2 2 0 8 0 filepl 120 1065 0 982 4 0 4 4 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 19 0 9 1 0 1 1 0 8 0 pgrppl 48 19 0 9 1 0 1 1 0 8 0 ucredpl 96 47 0 40 1 0 1 1 0 8 0 zombiepl 144 199 0 197 2 1 1 1 0 8 0 processpl 864 226 0 197 4 0 4 4 0 8 0 procpl 632 242 0 207 4 0 4 4 0 8 1 sockpl 384 80 0 64 2 0 2 2 0 8 0 mcl4k 4096 10 0 10 2 1 1 1 0 8 1 mcl2k 2048 5496 0 5456 9 3 6 9 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 9660 0 9615 10 2 8 8 0 8 3 bufpl 256 5796 0 1327 280 0 280 280 0 8 0 anonpl 16 21959 0 19730 15 1 14 14 0 62 3 amapchunkpl 152 970 0 899 5 0 5 5 0 158 0 amappl16 192 221 0 148 6 0 6 6 0 8 0 amappl15 184 4 0 1 1 0 1 1 0 8 0 amappl14 176 31 0 27 2 1 1 1 0 8 0 amappl12 160 7 0 5 2 1 1 1 0 8 0 amappl11 152 43 0 32 1 0 1 1 0 8 0 amappl10 144 8 0 6 1 0 1 1 0 8 0 amappl9 136 430 0 424 1 0 1 1 0 8 0 amappl8 128 121 0 109 1 0 1 1 0 8 0 amappl7 120 40 0 37 1 0 1 1 0 8 0 amappl6 112 71 0 63 1 0 1 1 0 8 0 amappl5 104 135 0 126 1 0 1 1 0 8 0 amappl4 96 442 0 417 1 0 1 1 0 8 0 amappl3 88 118 0 112 1 0 1 1 0 8 0 amappl2 80 889 0 824 4 1 3 3 0 8 1 amappl1 72 14029 0 13620 25 8 17 20 0 8 8 amappl 80 457 0 424 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 24 212 0 198 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 212 0 198 1 0 1 1 0 8 0 vmmpekpl 168 6282 0 6264 2 0 2 2 0 8 1 vmmpepl 168 30279 0 29306 93 16 77 77 0 357 30 vmsppl 272 211 0 198 2 0 2 2 0 8 1 pdppl 4096 430 0 396 6 0 6 6 0 8 0 pvpl 32 107733 0 103178 121 7 114 114 0 265 72 pmappl 200 211 0 198 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 415 0 9 12 0 12 12 0 8 0 ddb>