uvm_fault(0xfffffd807f00c000, 0x28, 0, 2) -> e kernel: page fault trap, code=0 Stopped at wsmux_do_ioctl+0x736: movq %rax,0x10(%rdx,%r15,8) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xfffffd807f00c000, 0x28, 0, 2) -> e wsmux_do_ioctl(ffff800000992a00,80185760,ffff800022e35710,f,ffff800020b74978) at wsmux_do_ioctl+0x736 sys/dev/wscons/wsmux.c:426 end trace frame: 0xffff800022e355f0, count: 0 ddb{0}> trace wsmux_do_ioctl(ffff800000992a00,80185760,ffff800022e35710,f,ffff800020b74978) at wsmux_do_ioctl+0x736 sys/dev/wscons/wsmux.c:426 VOP_IOCTL(fffffd8065d06270,80185760,ffff800022e35710,f,fffffd807f7c6a20,ffff800020b74978) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:290 vn_ioctl(fffffd806609f1e8,80185760,ffff800022e35710,ffff800020b74978) at vn_ioctl+0xb6 sys/kern/vfs_vnops.c:512 sys_ioctl(ffff800020b74978,ffff800022e35838,ffff800022e358a0) at sys_ioctl+0x5b8 syscall(ffff800022e35910) at syscall+0x552 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800022e35910) at syscall+0x552 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,ffffffffffffff82,0,3,c18dcbd50d8) at Xsyscall+0x128 end of kernel end trace frame: 0xc1b2c0fcf80, count: -6 ddb{0}> show registers rdi 0xff rsi 0x2 rbp 0xffff800022e35540 rbx 0x2 rdx 0 rcx 0xffff800000977500 rax 0x3 r8 0xffffffff81979171 wsmux_do_ioctl+0x201 r9 0x7 r10 0x80185760 __kernel_virt_to_phys+0x185760 r11 0xdb2700b1efad0aa9 r12 0xffff800000992a50 r13 0 r14 0xffff800022e35710 r15 0x3 rip 0xffffffff819796a6 wsmux_do_ioctl+0x736 cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff800022e354c0 ss 0x10 wsmux_do_ioctl+0x736: movq %rax,0x10(%rdx,%r15,8) ddb{0}> show proc PROC (syz-executor.0) pid=506346 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020b75788,0xffffffff8234cb80 process=0xffff800020b8d080 user=0xffff800022e30000, vmspace=0xfffffd807f00c000 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 36847 169176 87030 0 2 0 syz-executor.0 36847 359278 87030 0 2 0x4000000 syz-executor.0 *36847 506346 87030 0 7 0x4000000 syz-executor.0 24243 44312 1 0 3 0x100083 ttyin getty 75991 423901 0 0 3 0x14200 bored sosplice 22110 351380 70953 0 3 0x2 biowait syz-executor.1 87030 65507 70953 0 3 0x82 nanosleep syz-executor.0 70953 345057 70 0 3 0x82 thrsleep syz-fuzzer 70953 73958 70 0 3 0x4000082 thrsleep syz-fuzzer 70953 429338 70 0 3 0x4000082 thrsleep syz-fuzzer 70953 270773 70 0 3 0x4000082 kqread syz-fuzzer 70953 403176 70 0 3 0x4000082 thrsleep syz-fuzzer 70953 328333 70 0 3 0x4000082 thrsleep syz-fuzzer 70953 407737 70 0 3 0x4000082 thrsleep syz-fuzzer 70953 168019 70 0 3 0x4000082 thrsleep syz-fuzzer 70953 398618 70 0 3 0x4000082 thrsleep syz-fuzzer 70953 434407 70 0 3 0x4000082 thrsleep syz-fuzzer 70 368903 78949 0 3 0x10008a pause ksh 78949 137834 81029 0 3 0x92 select sshd 81029 239894 1 0 3 0x80 select sshd 18548 235486 16055 74 3 0x100092 bpf pflogd 16055 248676 1 0 3 0x80 netio pflogd 65504 65416 68259 73 7 0x100090 syslogd 68259 36915 1 0 3 0x100082 netio syslogd 81448 33381 1 77 3 0x100090 poll dhclient 29981 149395 1 0 3 0x80 poll dhclient 45510 462367 0 0 3 0x14200 pgzero zerothread 4150 201383 0 0 3 0x14200 aiodoned aiodoned 96114 77553 0 0 3 0x14200 syncer update 23887 89288 0 0 3 0x14200 cleaner cleaner 29097 360651 0 0 3 0x14200 reaper reaper 13305 273799 0 0 3 0x14200 pgdaemon pagedaemon 45075 79036 0 0 3 0x14200 bored crynlk 37595 441520 0 0 3 0x14200 bored crypto 15655 493807 0 0 3 0x40014200 acpi0 acpi0 60754 424003 0 0 3 0x40014200 idle1 14079 499944 0 0 3 0x14200 bored softnet 25850 54563 0 0 3 0x14200 bored systqmp 72158 343844 0 0 3 0x14200 bored systq 36500 139834 0 0 3 0x40014200 bored softclock 74362 504760 0 0 3 0x40014200 idle0 16216 480596 0 0 3 0x14200 bored smr 1 19107 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 36847 (syz-executor.0) thread 0xffff800020b74978 (506346) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8236ed40) #0 witness_lock+0x52e sys/kern/subr_witness.c:1161 #1 syscall+0x43a mi_syscall sys/sys/syscall_mi.h:91 [inline] #1 syscall+0x43a sys/arch/amd64/amd64/trap.c:574 #2 Xsyscall+0x128 Process 22110 (syz-executor.1) thread 0xffff800020b75530 (351380) exclusive rrwlock inode r = 0 (0xfffffd807aff71b0) #0 witness_lock+0x52e sys/kern/subr_witness.c:1161 #1 rw_enter+0x46d sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #3 ufs_ihashins+0x45 sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x133 sys/ufs/ffs/ffs_vfsops.c:1352 #5 ffs_inode_alloc+0x1cf sys/ufs/ffs/ffs_alloc.c:392 #6 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1164 #7 VOP_MKDIR+0x6a sys/kern/vfs_vops.c:449 #8 domkdirat+0x121 sys/kern/vfs_syscalls.c:2970 #9 syscall+0x552 mi_syscall sys/sys/syscall_mi.h:99 [inline] #9 syscall+0x552 sys/arch/amd64/amd64/trap.c:574 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8069aaf920) #0 witness_lock+0x52e sys/kern/subr_witness.c:1161 #1 rw_enter+0x46d sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:435 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:602 #4 vn_lock+0x6e sys/kern/vfs_vnops.c:549 #5 vfs_lookup+0xe9 sys/kern/vfs_lookup.c:422 #6 namei+0x61c sys/kern/vfs_lookup.c:252 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:2955 #8 syscall+0x552 mi_syscall sys/sys/syscall_mi.h:99 [inline] #8 syscall+0x552 sys/arch/amd64/amd64/trap.c:574 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9521 6416K 7039K 78643K 12035 0 0 pcb 25 9K 11K 78643K 257 0 0 rtable 108 4K 4K 78643K 296 0 0 ifaddr 60 13K 13K 78643K 112 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1483 0 0 iov 0 0K 16K 78643K 78 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1211 76K 77K 78643K 1756 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 10 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 12 0K 0K 78643K 111 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 5 13K 25K 78643K 595 0 0 sigio 0 0K 0K 78643K 8 0 0 proc 54 51K 83K 78643K 407 0 0 subproc 32 2K 2K 78643K 34 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 93 0 0 in_multi 33 2K 2K 78643K 48 0 0 ether_multi 1 0K 0K 78643K 2 0 0 mrt 0 0K 0K 78643K 3 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 245 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 95 21K 30K 78643K 2830 0 0 UVM aobj 32 4K 4K 78643K 34 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 14 0 0 NDP 12 0K 0K 78643K 29 0 0 temp 170 2731K 2795K 78643K 5147 0 0 kqueue 0 0K 0K 78643K 21 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 6 0 0 1 0 1 1 0 8 0 inpcbpl 280 277 0 270 1 0 1 1 0 8 0 plimitpl 152 37 0 29 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 96 0 92 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 ppxss 1128 10 0 10 3 2 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 18 0 6 1 0 1 1 0 8 0 pfstkey 112 18 0 6 1 0 1 1 0 8 0 pfstate 328 18 0 6 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 256 188 0 0 12 0 12 12 0 8 0 art_table 32 189 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 8 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 109 0 99 1 0 1 1 0 8 0 shmpl 112 32 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2403 0 980 47 0 47 47 0 8 0 ffsino 272 2403 0 980 96 0 96 96 0 8 0 nchpl 144 3424 0 1784 61 0 61 61 0 8 0 uvmvnodes 72 2804 0 0 51 0 51 51 0 8 0 vnodes 200 2804 0 0 148 0 148 148 0 8 0 namei 1024 9718 0 9717 2 1 1 1 0 8 0 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 11422 0 11421 9 6 3 6 0 8 2 sigapl 432 795 0 780 3 1 2 3 0 8 0 futexpl 56 7318 0 7318 1 0 1 1 0 8 1 knotepl 112 239 0 220 2 1 1 2 0 8 0 kqueuepl 104 162 0 160 1 0 1 1 0 8 0 pipepl 112 558 0 539 2 1 1 2 0 8 0 fdescpl 488 796 0 780 3 0 3 3 0 8 0 filepl 152 4494 0 4394 6 1 5 5 0 8 1 lockfpl 104 214 0 214 2 1 1 1 0 8 1 lockfspl 48 79 0 79 2 1 1 1 0 8 1 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 33 0 22 1 0 1 1 0 8 0 ucredpl 96 670 0 661 1 0 1 1 0 8 0 zombiepl 144 780 0 780 2 1 1 1 0 8 1 processpl 840 812 0 780 4 0 4 4 0 8 0 procpl 600 2108 0 2065 4 0 4 4 0 8 0 sosppl 128 4 0 4 1 1 0 1 0 8 0 sockpl 384 495 0 476 7 4 3 4 0 8 1 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 9 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 10 0 0 2 0 2 2 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 144 0 0 17 0 17 17 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 156 0 0 10 0 10 10 0 8 0 bufpl 256 7071 0 1171 369 0 369 369 0 8 0 anonpl 16 81712 0 69895 70 6 64 64 0 125 14 amapchunkpl 152 4264 0 4158 11 6 5 10 0 158 0 amappl16 192 3619 0 2969 46 5 41 45 0 8 8 amappl14 176 57 0 52 1 0 1 1 0 8 0 amappl13 168 9 0 8 2 1 1 1 0 8 0 amappl12 160 8 0 7 1 0 1 1 0 8 0 amappl11 152 332 0 314 1 0 1 1 0 8 0 amappl10 144 77 0 72 1 0 1 1 0 8 0 amappl9 136 877 0 872 1 0 1 1 0 8 0 amappl8 128 434 0 414 1 0 1 1 0 8 0 amappl7 120 34 0 31 1 0 1 1 0 8 0 amappl6 112 336 0 326 1 0 1 1 0 8 0 amappl5 104 123 0 109 1 0 1 1 0 8 0 amappl4 96 1033 0 1002 2 1 1 2 0 8 0 amappl3 88 137 0 132 1 0 1 1 0 8 0 amappl2 80 5848 0 5791 3 1 2 2 0 8 0 amappl1 72 27171 0 26726 25 15 10 20 0 8 0 amappl 80 2355 0 2318 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 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 33 0 2 1 0 1 1 0 8 0 uaddrrnd 24 796 0 780 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 796 0 780 1 0 1 1 0 8 0 vmmpekpl 168 10520 0 10495 2 0 2 2 0 8 0 vmmpepl 168 93165 0 91509 115 31 84 95 0 357 8 vmsppl 360 795 0 780 2 0 2 2 0 8 0 pdppl 4096 1600 0 1560 6 0 6 6 0 8 0 pvpl 32 277360 0 262372 176 13 163 163 0 265 41 pmappl 232 795 0 780 2 1 1 2 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 525 0 4 15 0 15 15 0 8 0