uvm_fault(fffffd806cd8c5d8,200000001000,0,1) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 kpageflttrap(ffff80002ab5cb10,200000001200) at kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:285 kerntrap(ffff80002ab5cb10) at kerntrap+0x19d sys/arch/amd64/amd64/trap.c:532 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b _copyin() at _copyin+0x5b pfioctl(14900,c4504441,ffff800001659800,1,ffff800045feb4e0) at pfioctl+0x1377 sys/net/pf_ioctl.c:3284 VOP_IOCTL(fffffd806cf441e0,c4504441,ffff800001659800,1,fffffd80097fd4e0,ffff800045feb4e0) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806c5da728,c4504441,ffff800001659800,ffff800045feb4e0) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 sys_ioctl(ffff800045feb4e0,ffff80002ab5d6c0,ffff80002ab5d610) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80002ab5d6c0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002ab5d6c0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc4675e34fe0, count: -18 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002ab5c430 rbx 0 rdx 0 rcx 0xffff800045feb4e0 rax 0xffff80002999dff0 r8 0xffff80002ab5c310 r9 0x8080808080808080 r10 0xd1a1cad137dda9ed r11 0xdd0778178964bdc6 r12 0xfffffd80040da2c0 r13 0xfffffd80048c91b8 r14 0x3 r15 0xffffffff8353aa56 substchar+0x608e rip 0xffffffff83200c75 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002ab5c420 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=200049 pid=45290 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800045feb248,0xffff80002a32b790 process=0xffff80003c3cd858 user=0xffff80002ab58000, vmspace=0xfffffd806cd8c5d8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 5167 226608 10523 0 2 0x100000 0 sh 31318 178760 39331 0 7 0x100000 0 sh 39331 102160 13199 0 3 0x100002 0x88 sigsusp sh 10523 256048 76377 0 3 0x100002 0x88 sigsusp sh 6872 183617 0 0 3 0x14000 0x200 acct acct 23257 245595 56356 0 3 0x2 0 clonelk ifconfig 56356 10106 81913 0 3 0x100002 0x88 sigsusp sh 76377 502881 21726 0 3 0x2 0x80 wait syz-executor 45290 188964 60769 0 2 0 0 syz-executor *45290 200049 60769 0 7 0 0x4000000 syz-executor 45290 235170 60769 0 3 0 0x4000080 fsleep syz-executor 45290 351892 60769 0 3 0 0x4000080 fsleep syz-executor 81913 373841 21726 0 3 0x2 0x80 wait syz-executor 13199 108963 21726 0 3 0x2 0x80 wait syz-executor 96508 198718 21726 0 3 0x2 0x80 nanoslp syz-executor 60769 454520 21726 0 3 0x2 0x80 nanoslp syz-executor 21726 12434 1 0 3 0x2 0x80 nanoslp syz-executor 42585 485323 5720 0 3 0x10 0x88 kqread sshd-session 5720 449751 97743 0 3 0x12 0x80 kqread sshd-session 50180 143836 1 0 3 0x100003 0x80 ttyin getty 97743 455973 1 0 3 0 0x88 kqread sshd 10839 105900 70632 74 3 0x1100012 0x80 bpf pflogd 70632 491175 1 0 3 0 0x80 sbwait pflogd 10535 425862 27075 73 3 0x1100010 0x80 kqread syslogd 27075 497271 1 0 3 0x100002 0x80 sbwait syslogd 64612 95789 1 0 3 0x100000 0x80 kqread resolvd 40980 225520 60673 77 3 0x100012 0x80 kqread dhcpleased 23893 391176 60673 77 3 0x100012 0x80 kqread dhcpleased 60673 212282 1 0 3 0 0x80 kqread dhcpleased 66621 306249 0 0 3 0x14000 0x200 bored smr 88897 265967 0 0 2 0x14000 0x200 zerothread 84911 227737 0 0 3 0x14000 0x200 aiodoned aiodoned 44291 228498 0 0 3 0x14000 0x200 syncer update 29114 450850 0 0 3 0x14000 0x200 cleaner cleaner 93235 339997 0 0 3 0x14000 0x200 reaper reaper 80853 167694 0 0 3 0x14000 0x200 pgdaemon pagedaemon 97804 128704 0 0 3 0x14000 0x200 bored viomb 34371 186402 0 0 3 0x14000 0x40000200 acpi0 acpi0 73838 479090 0 0 3 0x14000 0x40000200 idle1 22322 321924 0 0 3 0x14000 0x200 bored softnet1 72576 174823 0 0 3 0x14000 0x200 bored softnet0 1557 45397 0 0 3 0x14000 0x200 smrbar systqmp 68993 507333 0 0 3 0x14000 0x200 bored systq 24789 512431 0 0 3 0x14000 0x200 tmoslp softclockmp 49601 24729 0 0 3 0x14000 0x40000200 tmoslp softclock 12231 427494 0 0 3 0x14000 0x40000200 idle0 1 473411 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{1}> show all locks Process 45290 (syz-executor) thread 0xffff800045feb4e0 (200049) exclusive rwlock pf_lock r = 0 (0xffffffff839d8e68) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 pfioctl+0x1342 sys/net/pf_ioctl.c:3284 #3 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #4 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 #5 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 #7 Xsyscall+0x128 exclusive rwlock pfioctl_rw r = 0 (0xffffffff839d8ef8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 pfioctl+0x1d4 sys/net/pf_ioctl.c:2064 #3 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #4 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 #5 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 #7 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83afcc00) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 vn_ioctl+0x4d sys/kern/vfs_vnops.c:520 #2 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 #4 Xsyscall+0x128 Process 1557 (systqmp) thread 0xffff800045ffe530 (45397) shared rwlock systqmp r = 0 (0xffffffff839ed2b8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11047 12075K 12279K 166960K 13152 0 pcb 17 12K 12K 166960K 56 0 rtable 145 6K 9K 166960K 2751 0 pf 33 17K 24K 166960K 314 0 ifaddr 28 5K 8K 166960K 380 0 ifgroup 43 2K 2K 166960K 405 0 sysctl 2 1K 9K 166960K 9 0 counters 64 36K 37K 166960K 270 0 ioctlops 1 2K 4K 166960K 1608 0 iov 0 0K 16K 166960K 7 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1302 82K 82K 166960K 2236 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 27 3K 3K 166960K 76 0 dirhash 15 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 89K 166960K 1533 0 sigio 0 0K 0K 166960K 4 0 proc 79 131K 180K 166960K 2763 0 subproc 63 3K 4K 166960K 801 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 18 0 in_multi 52 3K 6K 166960K 964 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 32 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 55 254K 254K 166960K 55 0 exec 0 0K 1K 166960K 1416 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 210 161K 184K 166960K 11438 0 UVM aobj 7 2K 2K 166960K 7 0 pinsyscall 41 82K 103K 166960K 4729 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 2 0 NDP 13 0K 2K 166960K 277 0 temp 34 9119K 9151K 166960K 17873 0 kqueue 13 20K 24K 166960K 57 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 28 0 0 1 0 1 1 0 8 0 rtpcb 120 197 0 194 1 0 1 1 0 8 0 rtentry 176 980 0 924 6 1 5 6 0 8 0 unpcb 144 579 0 562 6 5 1 6 0 8 0 syncache 336 5 0 5 2 2 0 1 0 8 0 tcpcb 736 38 0 33 1 0 1 1 0 8 0 arp 136 176 0 166 1 0 1 1 0 8 0 inpcb 328 505 0 496 2 1 1 2 0 8 0 nd6 152 259 0 247 1 0 1 1 0 8 0 pkpcb 40 9 0 9 2 1 1 1 0 8 1 kcovpl 48 89 0 82 1 0 1 1 0 8 0 ppxss 1192 19 0 19 1 0 1 1 0 8 1 pppxif 1576 1 0 1 1 1 0 1 0 8 0 pfstscr 40 4 0 4 2 2 0 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 1 1 0 1 1 0 8 0 pfosfp 40 1428 0 1428 5 5 0 5 0 8 0 pfosfpen 112 1428 0 1428 21 21 0 21 0 8 0 pfrktable 1344 1 0 0 1 0 1 1 0 8 0 pfsrclim 320 1 0 1 1 0 1 1 0 8 1 pfanchor 1288 15 0 14 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 52 0 20 1 0 1 1 0 8 0 pfstkey 128 56 0 24 2 0 2 2 0 8 0 pfstate 448 54 0 22 5 0 5 5 0 8 0 pfrule 1360 35 0 28 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 3986 0 3700 35 11 24 31 0 8 0 art_table 40 3988 0 3700 5 0 5 5 0 8 0 art_node 32 980 0 913 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 72 74 0 49 1 0 1 1 0 8 0 shmpl 120 4 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 2 3 0 3 3 0 8 0 dino2pl 256 2043 0 386 104 0 104 104 0 8 0 ffsino 296 2043 0 386 128 0 128 128 0 8 0 nchpl 144 2531 0 463 77 0 77 77 0 8 0 rtmask 32 4 0 4 1 1 0 1 0 8 0 vnodes 216 2943 0 0 164 0 164 164 0 8 0 namei 1024 19803 0 19803 5 3 2 2 0 8 2 percpumem 16 151 0 103 1 0 1 1 0 8 0 kstatmem 264 213 0 192 3 1 2 3 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 23639 0 23639 10 9 1 8 1 8 1 plimitpl 152 138 0 123 1 0 1 1 0 8 0 sigapl 424 1689 0 1642 7 1 6 7 0 8 0 knotepl 120 298 0 0 10 0 10 10 0 8 0 kqueuepl 224 67 0 58 1 0 1 1 0 8 0 pipepl 344 379 0 352 4 0 4 4 0 8 0 fdescpl 528 1672 0 1642 3 0 3 3 0 8 0 filepl 160 6173 0 5973 18 7 11 18 0 8 1 lockfpl 104 77 0 75 1 0 1 1 0 8 0 lockfspl 48 39 0 37 1 0 1 1 0 8 0 sessionpl 144 115 0 106 1 0 1 1 0 8 0 pgrppl 48 205 0 189 1 0 1 1 0 8 0 ucredpl 104 270 0 257 1 0 1 1 0 8 0 zombiepl 144 1645 0 1642 1 0 1 1 0 8 0 processpl 1240 1689 0 1642 5 1 4 5 0 8 0 procpl 664 2236 0 2186 6 0 6 6 0 8 1 sockpl 752 1299 0 1270 20 16 4 17 0 8 1 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k128 9344 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 117 0 0 15 0 15 15 0 8 0 mcl2k 2048 30 0 0 4 0 4 4 0 8 0 mextrefs 64 29 0 0 1 0 1 1 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 217 0 0 14 0 14 14 0 8 0 bufpl 272 10495 0 4364 409 0 409 409 0 8 0 anonpl 32 7278 0 0 59 0 59 59 0 247 0 amapchunkpl 152 30670 0 30281 28 9 19 28 0 158 2 amappl16 200 2837 0 2827 13 4 9 9 0 8 6 amappl15 192 112 0 112 1 1 0 1 0 8 0 amappl14 184 1374 0 1370 1 0 1 1 0 8 0 amappl13 176 288 0 276 1 0 1 1 0 8 0 amappl12 168 2234 0 2207 2 0 2 2 0 8 0 amappl11 160 3 0 3 1 1 0 1 0 8 0 amappl10 152 85 0 71 1 0 1 1 0 8 0 amappl9 144 276 0 276 1 1 0 1 0 8 0 amappl8 136 427 0 424 1 0 1 1 0 8 0 amappl7 128 302 0 288 1 0 1 1 0 8 0 amappl6 120 944 0 939 1 0 1 1 0 8 0 amappl5 112 98 0 87 1 0 1 1 0 8 0 amappl4 104 527 0 507 1 0 1 1 0 8 0 amappl3 96 5820 0 5738 3 0 3 3 0 8 0 amappl2 88 1476 0 1403 2 0 2 2 0 8 0 amappl1 80 21503 0 20914 15 1 14 15 0 8 1 amappl 88 9354 0 9219 5 0 5 5 0 92 1 uvmvnodes 80 108 0 0 3 0 3 3 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 72 6 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1672 0 1642 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1672 0 1642 1 0 1 1 0 8 0 vmmpekpl 168 14759 0 14701 4 0 4 4 0 8 0 vmmpepl 168 116388 0 114678 94 10 84 93 0 357 5 vmsppl 488 1671 0 1642 5 0 5 5 0 8 0 rwobjpl 80 34939 0 33938 26 1 25 25 0 8 1 pdppl 4096 3351 0 3284 181 114 67 83 0 8 0 pvpl 32 13091 0 0 107 1 106 107 0 265 0 pmappl 256 1671 0 1642 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 791 0 133 19 0 19 19 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff839b2ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:153 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff83afc400) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83afc400) at __mp_lock+0x192 sys/kern/kern_lock.c:173 syscall(ffff80003c3ba000) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80003c3ba000) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c34bac66360, count: -10 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 witness_checkorder(ffffffff83983180,9,0) at witness_checkorder+0x10d1 sys/kern/subr_witness.c:-1 rw_do_enter_write(ffffffff83983168,0) at rw_do_enter_write+0xba sys/kern/kern_rwlock.c:234 uvn_io(fffffd800f99fa60,ffff80002ab5c678,1,202,0) at uvn_io+0x54c sys/uvm/uvm_vnode.c:1243 uvn_get(fffffd800f99fa60,0,ffff80002ab5c748,ffff80002ab5c72c,0,1,24c7ce6a0c4c608b,1) at uvn_get+0x31d sys/uvm/uvm_vnode.c:1075 uvm_fault_lower_io(ffff80002ab5c960,ffff80002ab5c998,ffff80002ab5c7e0,ffff80002ab5c7c8) at uvm_fault_lower_io+0x2ce sys/uvm/uvm_fault.c:1612 uvm_fault_lower(ffff80002ab5c960,ffff80002ab5c998,ffff80002ab5c8e0) at uvm_fault_lower+0x28d sys/uvm/uvm_fault.c:1381 uvm_fault(fffffd806cd8c5d8,200000001000,0,1) at uvm_fault+0x274 sys/uvm/uvm_fault.c:-1 kpageflttrap(ffff80002ab5cb10,200000001200) at kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:285 kerntrap(ffff80002ab5cb10) at kerntrap+0x19d sys/arch/amd64/amd64/trap.c:532 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b _copyin() at _copyin+0x5b pfioctl(14900,c4504441,ffff800001659800,1,ffff800045feb4e0) at pfioctl+0x1377 sys/net/pf_ioctl.c:3284 VOP_IOCTL(fffffd806cf441e0,c4504441,ffff800001659800,1,fffffd80097fd4e0,ffff800045feb4e0) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806c5da728,c4504441,ffff800001659800,ffff800045feb4e0) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537 sys_ioctl(ffff800045feb4e0,ffff80002ab5d6c0,ffff80002ab5d610) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80002ab5d6c0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002ab5d6c0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc4675e34fe0, count: -18