uvm_fault(0xffffffff82511728, 0xfffffd0000000018, 0, 1) -> e kernel: page fault trap, code=0 Stopped at sbdrop+0x1f9: movl 0x18(%r15),%r13d ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff82511728, 0xfffffd0000000018, 0, 1) -> e sbdrop(ffff800014926768,ffff8000149267f0,85c) at sbdrop+0x1f9 sys/kern/uipc_socket2.c:963 end trace frame: 0xffff800014926710, count: 0 ddb> trace sbdrop(ffff800014926768,ffff8000149267f0,85c) at sbdrop+0x1f9 sys/kern/uipc_socket2.c:963 sbflush(ffff800014926768,ffff8000149267f0) at sbflush+0x93 sys/kern/uipc_socket2.c:932 sbrelease(ffff800014926768,ffff8000149267f0) at sbrelease+0x2e sys/kern/uipc_socket2.c:526 sorflush(fffffd8036faec00) at sorflush+0x13d sys/kern/uipc_socket.c:1105 sofree(fffffd8036faec00,42) at sofree+0x147 sys/kern/uipc_socket.c:241 soclose(fffffd8036faec00,0) at soclose+0x268 sys/kern/uipc_socket.c:313 soo_close(fffffd802948a6a8,ffff80001492c780) at soo_close+0x40 fdrop(fffffd802948a6a8,ffff80001492c780) at fdrop+0xc2 sys/kern/kern_descrip.c:1273 closef(fffffd802948a6a8,ffff80001492c780) at closef+0x118 sys/kern/kern_descrip.c:1257 fdfree(ffff80001492c780) at fdfree+0x100 sys/kern/kern_descrip.c:1189 exit1(ffff80001492c780,0,1) at exit1+0x32f sys/kern/kern_exit.c:196 sys_exit(ffff80001492c780,ffff800014926bb0,ffff800014926c00) at sys_exit+0x17 sys/kern/kern_exit.c:94 syscall(ffff800014926c80) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffec970, count: -14 ddb> show registers rdi 0 rsi 0x6e6 rbp 0xffff8000149266c0 rbx 0xfffffd8031b08100 rdx 0xffff800014926500 rcx 0x1000 __ALIGN_SIZE rax 0 r8 0 r9 0x3 r10 0x336e15b8f1e3e85a r11 0xbf99c9732e10f8cc r12 0x6e6 r13 0x1700 __ALIGN_SIZE+0x700 r14 0xffff8000149267f0 r15 0xfffffd0000000000 rip 0xffffffff8207e359 sbdrop+0x1f9 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800014926660 ss 0x10 sbdrop+0x1f9: movl 0x18(%r15),%r13d ddb> show proc PROC (syz-executor.0) pid=68195 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff80001492d160,0xffff80001492db50 process=0xffff8000ffff6a30 user=0xffff800014921000, vmspace=0xfffffd8029c6c780 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 11245 312709 63424 0 2 0 syz-executor.1 11245 318415 63424 0 3 0x4000080 fsleep syz-executor.1 784 195363 59446 0 3 0x82 nanosleep syz-executor.0 23558 156698 0 0 3 0x14200 bored sosplice 63424 168703 59446 0 3 0x82 nanosleep syz-executor.1 59446 412397 16032 0 3 0x82 thrsleep syz-fuzzer 59446 121396 16032 0 3 0x4000082 thrsleep syz-fuzzer 59446 522284 16032 0 3 0x4000082 kqread syz-fuzzer 59446 59478 16032 0 3 0x4000082 thrsleep syz-fuzzer 59446 236636 16032 0 3 0x4000082 thrsleep syz-fuzzer 59446 340073 16032 0 3 0x4000082 thrsleep syz-fuzzer 59446 164868 16032 0 3 0x4000082 thrsleep syz-fuzzer 59446 62295 16032 0 3 0x4000082 thrsleep syz-fuzzer 16032 494302 11850 0 3 0x10008a pause ksh 11850 217887 57984 0 3 0x92 select sshd 70905 63 1 0 3 0x100083 ttyin getty 57984 492722 1 0 3 0x80 select sshd 82643 112264 69819 73 3 0x100090 kqread syslogd 69819 215131 1 0 3 0x100082 netio syslogd 38748 490478 1 77 3 0x100090 poll dhclient 4328 140958 1 0 3 0x80 poll dhclient 52664 377913 0 0 2 0x14200 zerothread 6418 126023 0 0 3 0x14200 aiodoned aiodoned 66968 88487 0 0 3 0x14200 syncer update 18075 213178 0 0 3 0x14200 cleaner cleaner 55295 167711 0 0 3 0x14200 reaper reaper 59743 311608 0 0 3 0x14200 pgdaemon pagedaemon 53185 144840 0 0 3 0x14200 bored crynlk 53964 328977 0 0 3 0x14200 bored crypto 72512 414557 0 0 3 0x40014200 acpi0 acpi0 97969 349682 0 0 3 0x14200 bored softnet 4912 281926 0 0 3 0x14200 bored systqmp 51243 421746 0 0 2 0x14200 systq 48781 338035 0 0 3 0x40014200 bored softclock 5935 139664 0 0 3 0x40014200 idle0 26188 89047 0 0 3 0x14200 bored smr 1 413899 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 devbuf 9550 6805K 6868K 78643K 11804 0 pcb 13 10K 12K 78643K 220 0 rtable 97 3K 3K 78643K 371 0 ifaddr 83 15K 16K 78643K 143 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 42 0 iov 0 0K 16K 78643K 124 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1637 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 1K 78643K 271 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 6 17K 25K 78643K 479 0 sigio 0 0K 0K 78643K 25 0 proc 48 38K 54K 78643K 439 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 45 0 in_multi 71 3K 3K 78643K 147 0 ether_multi 1 0K 0K 78643K 12 0 mrt 0 0K 0K 78643K 4 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 54 238K 238K 78643K 54 0 exec 0 0K 1K 78643K 252 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 122 70K 71K 78643K 2013 0 UVM aobj 130 4K 4K 78643K 130 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 100 0 NDP 14 0K 0K 78643K 28 0 temp 142 3019K 3654K 78643K 24724 0 kqueue 0 0K 0K 78643K 10 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 10 0 6 1 0 1 1 0 8 0 rtpcb 80 57 0 54 1 0 1 1 0 8 0 rtentry 112 74 0 37 2 0 2 2 0 8 0 unpcb 120 299 0 291 1 0 1 1 0 8 0 syncache 264 7 0 7 2 1 1 1 0 8 1 tcpqe 32 532 0 532 1 1 0 1 0 8 0 tcpcb 544 371 0 365 14 5 9 14 0 8 8 ipq 40 5 0 5 1 1 0 1 0 8 0 ipqe 40 225 0 225 1 1 0 1 0 8 0 inpcb 280 1367 0 1358 10 1 9 9 0 8 8 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 10 0 8 1 0 1 1 0 8 0 ppxss 1128 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 379 0 166 15 1 14 14 0 8 0 art_table 32 381 0 166 2 0 2 2 0 8 0 art_node 16 73 0 38 1 0 1 1 0 8 0 sysvmsgpl 40 38 0 27 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 269 0 259 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2143 0 749 46 0 46 46 0 8 0 ffsino 240 2143 0 749 83 0 83 83 0 8 0 nchpl 144 3011 0 1410 60 0 60 60 0 8 0 uvmvnodes 72 2484 0 0 46 0 46 46 0 8 0 vnodes 208 2484 0 0 131 0 131 131 0 8 0 namei 1024 8424 0 8424 1 0 1 1 0 8 1 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 528 10 0 4 1 0 1 1 0 8 0 scxspl 192 9314 0 9314 11 8 3 7 0 8 3 plimitpl 152 43 0 36 1 0 1 1 0 8 0 sigapl 432 647 0 633 2 0 2 2 0 8 0 futexpl 56 15557 0 15556 1 0 1 1 0 8 0 knotepl 112 158 0 139 1 0 1 1 0 8 0 kqueuepl 104 282 0 280 4 0 4 4 0 8 3 pipepl 128 358 0 339 2 1 1 2 0 8 0 fdescpl 424 648 0 633 2 0 2 2 0 8 0 filepl 120 5130 0 5027 12 1 11 11 0 8 7 lockfpl 104 176 0 173 1 0 1 1 0 8 0 lockfspl 48 63 0 60 1 0 1 1 0 8 0 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 20 0 10 1 0 1 1 0 8 0 ucredpl 96 453 0 446 1 0 1 1 0 8 0 zombiepl 144 634 0 633 1 0 1 1 0 8 0 processpl 864 663 0 633 4 0 4 4 0 8 0 procpl 632 1240 0 1202 4 0 4 4 0 8 0 sosppl 128 8 0 8 2 1 1 1 0 8 1 sockpl 384 1731 0 1710 15 5 10 13 0 8 7 mcl64k 65536 73 0 73 3 2 1 2 0 8 1 mcl16k 16384 9 0 9 3 2 1 1 0 8 1 mcl12k 12288 18 0 18 1 0 1 1 0 8 1 mcl9k 9216 10 0 10 3 2 1 1 0 8 1 mcl8k 8192 23 0 23 1 0 1 1 0 8 1 mcl4k 4096 54 0 54 2 1 1 1 0 8 1 mcl2k2 2112 6 0 6 4 3 1 1 0 8 1 mcl2k 2048 69895 0 69833 18 9 9 17 0 8 1 mtagpl 80 48 0 25 2 1 1 1 0 8 0 mbufpl 256 116221 0 116034 32 19 13 26 0 8 0 bufpl 280 7838 0 2897 354 0 354 354 0 8 0 anonpl 16 92487 0 72688 111 15 96 96 0 62 15 amapchunkpl 152 3315 0 3157 17 6 11 12 0 158 4 amappl16 192 4199 0 3108 76 13 63 67 0 8 8 amappl15 184 53 0 49 1 0 1 1 0 8 0 amappl14 176 31 0 29 1 0 1 1 0 8 0 amappl13 168 8 0 8 1 1 0 1 0 8 0 amappl12 160 6 0 4 1 0 1 1 0 8 0 amappl11 152 168 0 155 1 0 1 1 0 8 0 amappl10 144 10 0 9 1 0 1 1 0 8 0 amappl9 136 678 0 675 1 0 1 1 0 8 0 amappl8 128 228 0 201 1 0 1 1 0 8 0 amappl7 120 99 0 87 1 0 1 1 0 8 0 amappl6 112 186 0 172 1 0 1 1 0 8 0 amappl5 104 157 0 146 1 0 1 1 0 8 0 amappl4 96 869 0 842 1 0 1 1 0 8 0 amappl3 88 139 0 131 1 0 1 1 0 8 0 amappl2 80 4372 0 4294 3 1 2 3 0 8 0 amappl1 72 21479 0 21037 26 16 10 20 0 8 0 amappl 80 1494 0 1443 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 18 0 17 1 0 1 1 0 8 0 aobjpl 64 129 0 0 3 0 3 3 0 8 0 uaddrrnd 24 658 0 637 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 658 0 637 1 0 1 1 0 8 0 vmmpekpl 168 8083 0 8059 2 0 2 2 0 8 0 vmmpepl 168 85577 0 83262 159 32 127 138 0 357 26 vmsppl 272 657 0 637 3 1 2 2 0 8 0 pdppl 4096 1322 0 1280 8 2 6 6 0 8 0 pvpl 32 248671 0 225749 236 14 222 222 0 265 37 pmappl 200 657 0 637 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 190 0 44 5 0 5 5 0 8 0