uvm_fault(0xffffffff825857c0, 0xfffffd0000000018, 0, 1) -> e kernel: page fault trap, code=0 Stopped at sbdrop+0x219: movl 0x18(%r15),%r13d ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff825857c0, 0xfffffd0000000018, 0, 1) -> e sbdrop(ffff800020b633b8,ffff800020b63440,13e8) at sbdrop+0x219 sys/kern/uipc_socket2.c:962 end trace frame: 0xffff800020b63360, count: 0 ddb{0}> trace sbdrop(ffff800020b633b8,ffff800020b63440,13e8) at sbdrop+0x219 sys/kern/uipc_socket2.c:962 sbflush(ffff800020b633b8,ffff800020b63440) at sbflush+0x93 sys/kern/uipc_socket2.c:931 sbrelease(ffff800020b633b8,ffff800020b63440) at sbrelease+0x2e sys/kern/uipc_socket2.c:525 sorflush(fffffd80659dfb10) at sorflush+0x14b sys/kern/uipc_socket.c:1131 sofree(fffffd80659dfb10,42) at sofree+0x147 sys/kern/uipc_socket.c:257 soclose(fffffd80659dfb10,0) at soclose+0x270 sys/kern/uipc_socket.c:338 soo_close(fffffd806557aef8,ffff800020a924f8) at soo_close+0x40 fdrop(fffffd806557aef8,ffff800020a924f8) at fdrop+0xc2 sys/kern/kern_descrip.c:1276 closef(fffffd806557aef8,ffff800020a924f8) at closef+0x11c sys/kern/kern_descrip.c:1260 fdfree(ffff800020a924f8) at fdfree+0x101 sys/kern/kern_descrip.c:1192 exit1(ffff800020a924f8,0,0,1) at exit1+0x344 sys/kern/kern_exit.c:196 sys_exit(ffff800020a924f8,ffff800020b63810,ffff800020b63860) at sys_exit+0x16 sys/kern/kern_exit.c:94 syscall(ffff800020b638e0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020b638e0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd41f0, count: -14 ddb{0}> show registers rdi 0 rsi 0x11f2 __ALIGN_SIZE+0x1f2 rbp 0xffff800020b63310 rbx 0xfffffd806f2d4100 rdx 0x4b980 acpi_pdirpa+0x377e8 rcx 0 rax 0 r8 0xffffffff820ac948 sbdrop+0x248 r9 0x3 r10 0x44eec26365b19e32 r11 0x7d7dfd799a244a2a r12 0x11f2 __ALIGN_SIZE+0x1f2 r13 0x5200 __ALIGN_SIZE+0x4200 r14 0xffff800020b63440 r15 0xfffffd0000000000 rip 0xffffffff820ac919 sbdrop+0x219 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020b632b0 ss 0x10 sbdrop+0x219: movl 0x18(%r15),%r13d ddb{0}> show proc PROC (syz-executor.1) pid=518818 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=79, nice=20 forw=0xffffffffffffffff, list=0xffff800020a92288,0xffffffff8263a570 process=0xffff800020ac6b68 user=0xffff800020b5e000, vmspace=0xfffffd8063341e70 estcpu=29, cpticks=4, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 22908 4100 0 0 3 0x14200 bored sosplice 62860 290437 8988 0 2 0x482 syz-executor.1 28610 407776 8988 0 2 0x2 syz-executor.0 8988 317393 10420 0 3 0x82 thrsleep syz-fuzzer 8988 195354 10420 0 2 0x4000482 syz-fuzzer 8988 383558 10420 0 3 0x4000082 thrsleep syz-fuzzer 8988 332525 10420 0 3 0x4000082 thrsleep syz-fuzzer 8988 40422 10420 0 3 0x4000082 thrsleep syz-fuzzer 8988 14640 10420 0 3 0x4000082 kqread syz-fuzzer 8988 505246 10420 0 3 0x4000082 thrsleep syz-fuzzer 8988 511438 10420 0 3 0x4000082 thrsleep syz-fuzzer 8988 159161 10420 0 3 0x4000082 thrsleep syz-fuzzer 8988 213682 10420 0 3 0x4000082 nanosleep syz-fuzzer 10420 482470 16911 0 3 0x10008a pause ksh 16911 405621 5250 0 3 0x92 select sshd 81414 347033 1 0 3 0x100083 ttyin getty 5250 128000 1 0 3 0x80 select sshd 53031 388006 22636 74 3 0x100092 bpf pflogd 22636 394545 1 0 3 0x80 netio pflogd 59920 422251 90520 73 3 0x100090 kqread syslogd 90520 59395 1 0 3 0x100082 netio syslogd 52434 223344 1 77 3 0x100090 poll dhclient 18616 119983 1 0 3 0x80 poll dhclient 44658 225957 0 0 3 0x14200 bored smr 28997 144004 0 0 3 0x14200 pgzero zerothread 33484 4712 0 0 3 0x14200 aiodoned aiodoned 55778 277766 0 0 3 0x14200 syncer update 64369 66601 0 0 3 0x14200 cleaner cleaner 9011 408694 0 0 7 0x14200 reaper 89223 260785 0 0 3 0x14200 pgdaemon pagedaemon 75380 265159 0 0 3 0x14200 bored crynlk 79164 278041 0 0 3 0x14200 bored crypto 5348 455474 0 0 3 0x40014200 acpi0 acpi0 83466 188060 0 0 3 0x40014200 idle1 47518 14766 0 0 3 0x14200 bored softnet 64057 487651 0 0 3 0x14200 bored systqmp 18899 499379 0 0 3 0x14200 bored systq 93660 109841 0 0 3 0x40014200 bored softclock 1498 360823 0 0 3 0x40014200 idle0 1 163434 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 28610 (syz-executor.0) thread 0xffff800020a6c4e8 (407776) exclusive rrwlock inode r = 0 (0xfffffd80659ae700) #0 witness_lock+0x52e sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 ufs_ihashins+0x45 sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x13e sys/ufs/ffs/ffs_vfsops.c:1358 #5 ffs_inode_alloc+0x1cf sys/ufs/ffs/ffs_alloc.c:392 #6 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #7 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:449 #8 domkdirat+0x121 sys/kern/vfs_syscalls.c:3058 #9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b436098) #0 witness_lock+0x52e sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:602 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x63c sys/kern/vfs_lookup.c:249 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3043 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9508 6410K 6730K 78643K 10866 0 pcb 13 8K 8K 78643K 64 0 rtable 98 3K 4K 78643K 275 0 ifaddr 63 13K 13K 78643K 89 0 counters 43 33K 34K 78643K 49 0 ioctlops 0 0K 4K 78643K 1489 0 iov 0 0K 12K 78643K 12 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1313 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 5 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 29 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 5 13K 25K 78643K 164 0 sigio 0 0K 0K 78643K 2 0 proc 62 63K 95K 78643K 450 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 9 0 in_multi 33 2K 2K 78643K 54 0 ether_multi 1 0K 0K 78643K 7 0 mrt 0 0K 0K 78643K 3 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 67 307K 307K 78643K 67 0 exec 0 0K 1K 78643K 220 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 111 54K 54K 78643K 1476 0 UVM aobj 10 2K 2K 78643K 12 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 23 0 NDP 10 0K 0K 78643K 17 0 temp 106 3022K 3086K 78643K 2445 0 kqueue 3 4K 8K 78643K 13 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 9 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 35 0 32 1 0 1 1 0 8 0 rtentry 112 58 0 19 2 0 2 2 0 8 0 unpcb 120 205 0 195 2 0 2 2 0 8 1 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 86 0 86 1 1 0 1 0 8 0 tcpcb 544 94 0 86 2 0 2 2 0 8 1 inpcb 280 419 0 404 3 0 3 3 0 8 1 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 7 0 1 1 0 1 1 0 8 0 ppxss 1128 2 0 2 1 1 0 1 0 8 0 pffrag 232 5 0 5 1 0 1 1 0 482 1 pffrnode 88 5 0 5 1 0 1 1 0 8 1 pffrent 40 52 0 52 1 0 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 34 0 1 1 0 1 1 0 8 0 pfstkey 112 34 0 1 1 0 1 1 0 8 0 pfstate 328 34 0 1 3 0 3 3 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 256 313 0 118 15 0 15 15 0 8 2 art_table 32 314 0 118 2 0 2 2 0 8 0 art_node 16 57 0 24 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 8 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 27 0 17 1 0 1 1 0 8 0 shmpl 112 10 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1639 0 234 46 0 46 46 0 8 0 ffsino 272 1639 0 234 95 0 95 95 0 8 0 nchpl 144 2057 0 438 61 0 61 61 0 8 0 uvmvnodes 72 1741 0 0 32 0 32 32 0 8 0 vnodes 208 1741 0 0 92 0 92 92 0 8 0 namei 1024 5617 0 5616 2 1 1 1 0 8 0 percpumem 16 35 0 3 1 0 1 1 0 8 0 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 560 6 0 0 1 0 1 1 0 8 0 scxspl 192 6065 0 6065 6 5 1 5 0 8 1 plimitpl 152 18 0 10 1 0 1 1 0 8 0 sigapl 424 380 0 348 4 0 4 4 0 8 0 futexpl 56 2867 0 2867 1 0 1 1 0 8 1 knotepl 112 67 0 48 1 0 1 1 0 8 0 kqueuepl 144 36 0 34 1 0 1 1 0 8 0 pipelkpl 48 104 0 94 1 0 1 1 0 8 0 pipepl 120 208 0 189 1 0 1 1 0 8 0 fdescpl 496 364 0 348 3 0 3 3 0 8 0 filepl 152 2503 0 2389 7 1 6 6 0 8 1 lockfpl 104 56 0 55 1 0 1 1 0 8 0 lockfspl 48 14 0 13 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 306 0 297 1 0 1 1 0 8 0 zombiepl 144 349 0 348 2 1 1 1 0 8 0 processpl 960 380 0 348 6 1 5 5 0 8 0 procpl 624 713 0 670 5 0 5 5 0 8 1 srpgc 64 2 0 2 1 0 1 1 0 8 1 sosppl 128 2 0 2 1 0 1 1 0 8 1 sockpl 400 662 0 633 6 1 5 5 0 8 2 mcl64k 65536 19 0 0 3 0 3 3 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 10 0 0 2 0 2 2 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 194 0 0 25 0 25 25 0 8 0 mtagpl 80 9 0 0 1 0 1 1 0 8 0 mbufpl 256 348 0 0 22 1 21 21 0 8 0 bufpl 280 4284 0 176 294 0 294 294 0 8 0 anonpl 16 51312 0 34088 79 1 78 78 0 124 8 amapchunkpl 152 1979 0 1841 12 1 11 11 0 158 4 amappl16 192 1628 0 680 48 0 48 48 0 8 0 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 11 0 9 3 2 1 1 0 8 0 amappl13 168 25 0 24 1 0 1 1 0 8 0 amappl12 160 14 0 13 3 2 1 1 0 8 0 amappl11 152 143 0 123 2 1 1 2 0 8 0 amappl10 144 16 0 12 1 0 1 1 0 8 0 amappl9 136 452 0 446 1 0 1 1 0 8 0 amappl8 128 381 0 357 1 0 1 1 0 8 0 amappl7 120 118 0 108 1 0 1 1 0 8 0 amappl6 112 95 0 89 1 0 1 1 0 8 0 amappl5 104 274 0 258 1 0 1 1 0 8 0 amappl4 96 523 0 487 2 1 1 2 0 8 0 amappl3 88 111 0 106 1 0 1 1 0 8 0 amappl2 80 2017 0 1944 3 1 2 3 0 8 0 amappl1 72 17936 0 17488 26 16 10 20 0 8 0 amappl 80 966 0 919 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 11 0 2 1 0 1 1 0 8 0 uaddrrnd 24 370 0 348 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 370 0 348 1 0 1 1 0 8 0 vmmpekpl 168 6803 0 6770 2 0 2 2 0 8 0 vmmpepl 168 51810 0 49681 136 15 121 124 0 357 26 vmsppl 368 369 0 348 3 0 3 3 0 8 0 pdppl 4096 748 0 702 7 0 7 7 0 8 0 pvpl 32 168559 0 147964 190 4 186 186 0 265 19 pmappl 232 369 0 348 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 197 0 6 6 0 6 6 0 8 0