witness: lock_object uninitialized: 0xffff800000dd5028 Starting stack trace... witness_checkorder(ffff800000dd5028,9,0) at witness_checkorder+0x137 witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000dd5028,9,0) at witness_checkorder+0x137 sys/kern/subr_witness.c:777 rw_enter_write(ffff800000dd5018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000dd5000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000dd5000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000ffff4450) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff8000211d98b8,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff8000211d98b8,ffff80002afab0d0,ffff80002afab120) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002afab1a0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002afab1a0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71c39c860f50, count: 249 End of stack trace. Stopped at db_enter+0x1c: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800000dd5028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000dd5028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777 rw_enter_write(ffff800000dd5018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000dd5000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000dd5000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000ffff4450) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff8000211d98b8,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff8000211d98b8,ffff80002afab0d0,ffff80002afab120) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002afab1a0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002afab1a0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71c39c860f50, count: -9 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002afaae70 rbx 0x3 rdx 0 rcx 0xffff8000211d98b8 rax 0xffff800020d58ff0 r8 0xffff80002afaae10 r9 0x8080808080808080 r10 0x5bda10655ad86a0b r11 0x3b3409cf7552c7f8 r12 0xffff800000dd5001 r13 0xffff800000dd5028 r14 0 r15 0 rip 0xffffffff81a54b4c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002afaae60 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) pid=79487 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000211d8040,0xffffffff82caf008 process=0xffff8000ffff4450 user=0xffff80002afa6000, vmspace=0xfffffd80627c1930 estcpu=36, cpticks=10, pctcpu=0.0 user=0, sys=8, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 52109 237269 99962 0 2 0 syz-executor.3 52109 94383 99962 0 3 0x4000080 kqread syz-executor.3 52109 346487 99962 0 3 0x4000080 fsleep syz-executor.3 52109 266887 99962 0 3 0x4000080 fsleep syz-executor.3 63047 9963 17990 0 2 0 syz-executor.7 63047 326176 17990 0 3 0x4000080 kqpoll syz-executor.7 63047 486207 17990 0 2 0x4000000 syz-executor.7 63047 482365 17990 0 7 0x4000000 syz-executor.7 76687 311948 3929 0 3 0x80 nanoslp syz-executor.6 76687 480789 3929 0 3 0x4000080 msgwait syz-executor.6 76687 456211 3929 0 3 0x4000080 msgwait syz-executor.6 76687 395562 3929 0 3 0x4000080 msgwait syz-executor.6 76687 455458 3929 0 3 0x4000080 fsleep syz-executor.6 22297 412972 0 0 3 0x14280 nfsidl nfsio 19666 5005 0 0 3 0x14280 nfsidl nfsio 70408 356579 0 0 3 0x14280 nfsidl nfsio 87313 464396 0 0 3 0x14280 nfsidl nfsio 26025 355962 0 0 3 0x14280 nfsidl nfsio 96669 59214 0 0 3 0x14280 nfsidl nfsio 33354 495345 0 0 3 0x14280 nfsidl nfsio 15225 187645 0 0 3 0x14280 nfsidl nfsio 79335 105566 0 0 3 0x14280 nfsidl nfsio 74726 457707 0 0 3 0x14280 nfsidl nfsio 77319 439695 0 0 3 0x14280 nfsidl nfsio 54955 366614 0 0 3 0x14280 nfsidl nfsio 71528 141536 0 0 3 0x14280 nfsidl nfsio 93 490748 0 0 3 0x14280 nfsidl nfsio 10782 503436 0 0 3 0x14280 nfsidl nfsio 76254 484901 0 0 3 0x14280 nfsidl nfsio 25117 246862 0 0 3 0x14280 nfsidl nfsio 41186 477195 0 0 3 0x14280 nfsidl nfsio 6790 74492 0 0 3 0x14280 nfsidl nfsio 31053 111568 0 0 3 0x14280 nfsidl nfsio 17990 140861 48297 0 3 0x82 nanoslp syz-executor.7 3929 301634 48297 0 3 0x82 nanoslp syz-executor.6 52224 448763 48297 0 3 0x82 nanoslp syz-executor.5 54891 481974 48297 0 3 0x82 piperd syz-executor.4 51321 379653 48297 0 3 0x82 nanoslp syz-executor.1 99962 273369 48297 0 3 0x82 nanoslp syz-executor.3 52871 217493 48297 0 3 0x82 piperd syz-executor.2 48297 191091 93520 0 3 0x2000082 wait syz-fuzzer 48297 482165 93520 0 3 0x6000082 nanoslp syz-fuzzer 48297 73464 93520 0 3 0x6000082 thrsleep syz-fuzzer 48297 131235 93520 0 3 0x6000082 wait syz-fuzzer 48297 25098 93520 0 3 0x6000082 thrsleep syz-fuzzer 48297 121305 93520 0 3 0x6000082 wait syz-fuzzer 48297 493073 93520 0 3 0x6000082 thrsleep syz-fuzzer 48297 219356 93520 0 3 0x6000082 wait syz-fuzzer 48297 28646 93520 0 3 0x6000082 kqread syz-fuzzer 48297 227159 93520 0 3 0x6000082 thrsleep syz-fuzzer 48297 166972 93520 0 3 0x6000082 thrsleep syz-fuzzer 48297 417993 93520 0 3 0x6000082 wait syz-fuzzer 48297 148720 93520 0 3 0x6000082 wait syz-fuzzer 48297 5969 93520 0 3 0x6000082 wait syz-fuzzer 48297 141616 93520 0 3 0x6000082 thrsleep syz-fuzzer 93520 501173 19310 0 3 0x10008a sigsusp ksh 19310 379791 77113 0 3 0x9a kqread sshd 53414 92430 1 0 3 0x100083 ttyin getty 77113 82544 1 0 3 0x88 kqread sshd 25910 240305 66533 74 3 0x1100092 bpf pflogd 66533 5706 1 0 3 0x80 netio pflogd 62909 343177 48807 73 3 0x1100090 kqread syslogd 48807 419820 1 0 3 0x100082 netio syslogd 29531 491688 1 0 3 0x100080 kqread resolvd 49293 521319 98466 77 3 0x100092 kqread dhcpleased 89681 317842 98466 77 3 0x100092 kqread dhcpleased 98466 306377 1 0 3 0x80 kqread dhcpleased 97480 423124 0 0 3 0x14200 bored smr 6547 160448 0 0 2 0x14200 zerothread 239 349236 0 0 3 0x14200 aiodoned aiodoned 47575 175362 0 0 3 0x14200 syncer update 59419 465406 0 0 3 0x14200 cleaner cleaner 15751 209691 0 0 2 0x14200 reaper 56437 180157 0 0 3 0x14200 pgdaemon pagedaemon 91548 67265 0 0 3 0x14200 bored viomb 16246 400152 0 0 3 0x40014200 acpi0 acpi0 69123 379304 0 0 3 0x40014200 idle1 58268 429022 0 0 3 0x14200 bored softnet3 84442 422994 0 0 3 0x14200 bored softnet2 94219 85869 0 0 3 0x14200 bored softnet1 58217 137030 0 0 3 0x14200 bored softnet0 18428 130751 0 0 3 0x14200 bored systqmp 5959 63369 0 0 3 0x14200 bored systq 26707 516105 0 0 3 0x40014200 bored softclock 94538 221488 0 0 3 0x40014200 idle0 1 340053 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 63047 (syz-executor.7) thread 0xffff8000212a78c0 (486207) exclusive rwlock netlock r = 0 (0xffffffff82b85dd0) #0 witness_lock+0x447 #1 sosetopt+0xc9 sys/kern/uipc_socket.c:1795 #2 sys_setsockopt+0x1e9 sys/kern/uipc_syscalls.c:1235 #3 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #3 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #4 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10206 6798K 7124K 78643K 12055 0 pcb 13 8K 8K 78643K 42 0 rtable 217 6K 6K 78643K 370 0 pf 30 9K 10K 78643K 43 0 ifaddr 41 14K 15K 78643K 47 0 ifgroup 51 2K 2K 78643K 55 0 counters 58 35K 35K 78643K 60 0 ioctlops 0 0K 4K 78643K 1487 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1349 84K 84K 78643K 1685 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 6 0K 0K 78643K 7 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 12 41K 93K 78643K 484 0 sigio 0 0K 0K 78643K 3 0 proc 70 115K 128K 78643K 554 0 subproc 91 5K 6K 78643K 104 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 3 0K 0K 78643K 7 0 in_multi 88 6K 7K 78643K 99 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 406 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 331 78K 96K 78643K 7330 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 5 0 NDP 11 0K 2K 78643K 28 0 temp 65 5914K 5985K 78643K 8026 0 kqueue 12 18K 22K 78643K 42 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 41 0 38 1 0 1 1 0 8 0 rtentry 112 113 0 13 4 0 4 4 0 8 0 unpcb 144 174 0 159 2 1 1 2 0 8 0 syncache 296 6 0 6 2 1 1 1 0 8 1 tcpqe 32 126 0 126 2 1 1 1 0 8 1 tcpcb 808 89 0 83 4 3 1 4 0 8 0 arp 120 18 0 2 1 0 1 1 0 8 0 inpcb 368 211 0 199 5 3 2 4 0 8 0 nd6 136 25 0 3 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 0 1 1 0 8 1 kcovpl 48 8 0 1 1 0 1 1 0 8 0 pffrag 232 4 0 2 1 0 1 1 0 482 0 pffrnode 88 4 0 2 1 0 1 1 0 8 0 pffrent 40 10 0 8 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 38 0 12 1 0 1 1 0 8 0 pfstkey 128 38 0 12 2 0 2 2 0 8 0 pfstate 376 38 0 12 4 0 4 4 0 8 0 pfrule 1344 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 256 455 0 44 29 0 29 29 0 8 0 art_table 32 456 0 44 4 0 4 4 0 8 0 art_node 16 111 0 20 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 1 2 1 1 1 0 8 0 semapl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1906 0 458 91 0 91 91 0 8 0 ffsino 272 1906 0 458 97 0 97 97 0 8 0 nchpl 144 2630 0 984 63 0 63 63 0 8 0 uvmvnodes 80 2398 0 0 49 0 49 49 0 8 0 vnodes 216 2398 0 0 134 0 134 134 0 8 0 namei 1024 9312 0 9312 2 1 1 2 0 8 1 percpumem 16 43 0 1 1 0 1 1 0 8 0 kstatmem 264 24 0 2 2 0 2 2 0 8 0 scxspl 216 8919 0 8919 10 9 1 8 1 8 1 plimitpl 152 52 0 37 1 0 1 1 0 8 0 sigapl 424 825 0 761 10 2 8 8 0 8 0 futexpl 64 2788 0 2785 2 1 1 1 0 8 0 knotepl 120 108 0 0 4 0 4 4 0 8 0 kqueuepl 216 55 0 45 1 0 1 1 0 8 0 pipepl 320 381 0 353 14 11 3 14 0 8 0 fdescpl 496 788 0 763 5 0 5 5 0 8 0 filepl 152 4122 0 3885 26 13 13 22 0 8 2 lockfpl 104 215 0 213 2 0 2 2 0 8 1 lockfspl 48 106 0 104 1 0 1 1 0 8 0 sessionpl 144 24 0 8 1 0 1 1 0 8 0 pgrppl 48 24 0 8 1 0 1 1 0 8 0 ucredpl 104 178 0 166 1 0 1 1 0 8 0 zombiepl 144 957 0 955 2 1 1 1 0 8 0 processpl 1072 825 0 761 6 1 5 6 0 8 0 procpl 696 1531 0 1442 11 2 9 9 0 8 0 sockpl 488 432 0 402 10 1 9 10 0 8 5 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 273 0 0 35 0 35 35 0 8 0 mtagpl 96 44 0 0 2 0 2 2 0 8 0 mbufpl 256 301 0 0 19 0 19 19 0 8 0 bufpl 288 4640 0 144 322 0 322 322 0 8 0 anonpl 24 212347 0 200971 87 2 85 86 0 186 0 amapchunkpl 152 24314 0 23461 56 5 51 53 0 158 14 amappl16 200 5243 0 4881 20 0 20 20 0 8 0 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 158 0 144 2 1 1 2 0 8 0 amappl13 176 27 0 26 1 0 1 1 0 8 0 amappl12 168 1466 0 1436 4 1 3 3 0 8 0 amappl11 160 56 0 42 1 0 1 1 0 8 0 amappl10 152 34 0 24 1 0 1 1 0 8 0 amappl9 144 213 0 211 1 0 1 1 0 8 0 amappl8 136 199 0 146 2 0 2 2 0 8 0 amappl7 128 62 0 53 2 0 2 2 0 8 0 amappl6 120 251 0 232 2 1 1 2 0 8 0 amappl5 112 168 0 157 1 0 1 1 0 8 0 amappl4 104 583 0 542 3 1 2 3 0 8 0 amappl3 96 4971 0 4893 4 1 3 3 0 8 0 amappl2 88 1045 0 978 3 1 2 3 0 8 0 amappl1 80 11454 0 10917 22 8 14 22 0 8 0 amappl 88 6788 0 6567 6 0 6 6 0 92 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 788 0 762 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 788 0 762 1 0 1 1 0 8 0 vmmpekpl 168 12814 0 12758 7 3 4 6 0 8 1 vmmpepl 168 68793 0 66649 131 28 103 124 0 357 2 vmsppl 464 787 0 762 5 0 5 5 0 8 0 rwobjpl 56 26431 0 22607 57 2 55 55 0 8 0 pdppl 4096 1584 0 1524 132 62 70 84 0 8 10 pvpl 32 483080 0 466319 365 202 163 350 0 265 0 pmappl 248 787 0 762 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 750 0 71 20 0 20 20 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82c01ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82cb5dd0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cb5dd0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002613d7c0,ffff800000069c00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xb sys/dev/kcov.c:154 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff82cb5dd0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cb5dd0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff80002613db00) at syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002613db00) at syscall+0x5cd sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x43ddc77d370, count: -12 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800000dd5028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000dd5028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777 rw_enter_write(ffff800000dd5018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000dd5000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000dd5000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000ffff4450) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff8000211d98b8,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff8000211d98b8,ffff80002afab0d0,ffff80002afab120) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002afab1a0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002afab1a0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71c39c860f50, count: -9