login: witness: lock_object uninitialized: 0xffff800000e2a028 Starting stack trace... witness_checkorder(ffff800000e2a028,9,0) at witness_checkorder+0x133 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000e2a028,9,0) at witness_checkorder+0x133 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000e2a018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e2a000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000e2a000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f1d28) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff800027b537b0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff800027b537b0,ffff800027b0a870,ffff800027b0a8d0) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800027b0a940) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027b0a940) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffafc0, count: 249 End of stack trace. Stopped at db_enter+0x18: addq $0x8,%rsp ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 witness_checkorder(ffff800000e2a028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000e2a028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000e2a018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e2a000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000e2a000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f1d28) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff800027b537b0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff800027b537b0,ffff800027b0a870,ffff800027b0a8d0) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800027b0a940) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027b0a940) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffafc0, count: -9 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800027b0a610 rbx 0x3 rdx 0 rcx 0 rax 0xffff800027b537b0 r8 0xffff800027b0a5b0 r9 0x8080808080808080 r10 0xa25760cea3765a07 r11 0xd566f276066ba816 r12 0xffff800000e2a001 r13 0xffff800000e2a028 r14 0 r15 0 rip 0xffffffff820ea248 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800027b0a600 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.1) pid=63545 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800027b53270,0xffff800027b53520 process=0xffff8000211f1d28 user=0xffff800027b05000, vmspace=0xfffffd806839d2f8 estcpu=36, cpticks=11, pctcpu=0.0 user=0, sys=8, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 5893 522572 80442 0 2 0x480 syz-executor.2 5893 281474 80442 0 3 0x4000080 fsleep syz-executor.2 64302 141912 36533 0 2 0 syz-executor.0 64302 147254 36533 0 3 0x4000000 fdlock syz-executor.0 64302 343376 36533 0 2 0x4000000 syz-executor.0 64302 222963 36533 0 3 0x4000080 fsleep syz-executor.0 64302 96047 36533 0 2 0x4000000 syz-executor.0 64302 395812 36533 0 2 0x4000000 syz-executor.0 82083 388972 23974 0 2 0x482 syz-executor.3 67504 223226 1 0 2 0x100083 getty 80442 302808 23974 0 2 0x482 syz-executor.2 36533 79803 23974 0 2 0x482 syz-executor.0 30987 497768 23974 0 2 0x482 syz-executor.1 16884 426176 0 0 3 0x14280 nfsidl nfsio 48227 101796 0 0 3 0x14280 nfsidl nfsio 65367 168657 0 0 3 0x14280 nfsidl nfsio 39675 300794 0 0 3 0x14280 nfsidl nfsio 21763 485964 0 0 3 0x14280 nfsidl nfsio 43356 38660 0 0 3 0x14280 nfsidl nfsio 33849 503990 0 0 3 0x14280 nfsidl nfsio 97051 192189 0 0 3 0x14280 nfsidl nfsio 31563 159393 0 0 3 0x14280 nfsidl nfsio 11476 68850 0 0 3 0x14280 nfsidl nfsio 75336 126234 0 0 3 0x14280 nfsidl nfsio 75484 309544 0 0 3 0x14280 nfsidl nfsio 56147 167191 0 0 3 0x14280 nfsidl nfsio 11968 45893 0 0 3 0x14280 nfsidl nfsio 97966 512867 0 0 3 0x14280 nfsidl nfsio 94263 55433 0 0 3 0x14280 nfsidl nfsio 99419 50299 0 0 3 0x14280 nfsidl nfsio 55653 388692 0 0 3 0x14280 nfsidl nfsio 35375 183693 0 0 3 0x14280 nfsidl nfsio 12944 146405 0 0 3 0x14280 nfsidl nfsio 64183 402803 0 0 3 0x14200 bored sosplice 23974 1722 47202 0 3 0x82 thrsleep syz-fuzzer 23974 16185 47202 0 3 0x4000082 thrsleep syz-fuzzer 23974 119362 47202 0 3 0x4000082 thrsleep syz-fuzzer 23974 421029 47202 0 3 0x4000082 thrsleep syz-fuzzer 23974 444748 47202 0 3 0x4000082 kqread syz-fuzzer 23974 100488 47202 0 3 0x4000082 thrsleep syz-fuzzer 23974 63027 47202 0 3 0x4000082 thrsleep syz-fuzzer 23974 41448 47202 0 3 0x4000082 thrsleep syz-fuzzer 47202 313922 69875 0 3 0x10008a sigsusp ksh 69875 475829 90268 0 3 0x9a poll sshd 90268 221311 1 0 3 0x88 poll sshd 55957 379155 42097 74 3 0x100092 bpf pflogd 42097 209163 1 0 3 0x80 netio pflogd 56970 155146 40963 73 2 0x100090 syslogd 40963 443559 1 0 3 0x100082 netio syslogd 83946 468969 1 0 3 0x100080 kqread resolvd 2361 193852 7679 77 3 0x100092 kqread dhcpleased 24671 142312 7679 77 3 0x100092 kqread dhcpleased 7679 18908 1 0 3 0x80 kqread dhcpleased 7477 180079 0 0 3 0x14200 bored smr 69818 168797 0 0 2 0x14200 zerothread 94417 189829 0 0 3 0x14200 aiodoned aiodoned 27119 62116 0 0 3 0x14200 syncer update 26272 523157 0 0 3 0x14200 cleaner cleaner 42138 174121 0 0 7 0x14200 reaper 42218 198173 0 0 3 0x14200 pgdaemon pagedaemon 88935 272387 0 0 3 0x14200 bored viomb 69127 358127 0 0 3 0x40014200 acpi0 acpi0 47317 244282 0 0 3 0x40014200 idle1 77523 265536 0 0 3 0x14200 bored softnet 29800 127418 0 0 3 0x14200 bored systqmp 97842 353739 0 0 3 0x14200 bored systq 72303 375842 0 0 3 0x40014200 bored softclock 68584 377976 0 0 3 0x40014200 idle0 1 29168 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 64302 (syz-executor.0) thread 0xffff800024cdf268 (343376) exclusive rwlock fdlock r = 0 (0xfffffd806ec44c08) #0 witness_lock+0x44d #1 doopenat+0x11b #2 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #2 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #3 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10202 6496K 10910K 78643K 63999 0 pcb 13 18K 21K 78643K 2354 0 rtable 184 16K 17K 78643K 4061 0 ifaddr 86 23K 24K 78643K 1192 0 sysctl 2 0K 0K 78643K 2 0 counters 48 34K 35K 78643K 374 0 ioctlops 0 0K 4K 78643K 4206 0 iov 0 0K 32K 78643K 1665 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1475 93K 93K 78643K 17324 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 78 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 2617 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 8 25K 49K 78643K 14747 0 sigio 0 0K 0K 78643K 214 0 proc 74 111K 112K 78643K 2951 0 subproc 52 3K 3K 78643K 1009 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 469 0 in_multi 51 3K 4K 78643K 1539 0 ether_multi 1 0K 0K 78643K 179 0 mrt 1 0K 0K 78643K 101 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 241 1076K 1076K 78643K 241 0 exec 0 0K 2K 78643K 4461 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 7 26K 26K 78643K 7 0 UVM amap 587 1359K 1360K 78643K 185097 0 UVM aobj 131 4K 4K 78643K 142 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 690 0 NDP 9 0K 1K 78643K 380 0 temp 113 4218K 4346K 78643K 144604 0 kqueue 11 16K 25K 78643K 485 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 904 0 901 12 11 1 3 0 8 0 rtentry 112 1143 0 1086 4 1 3 3 0 8 0 unpcb 136 8428 0 8410 104 103 1 8 0 8 0 syncache 296 66 0 66 19 18 1 1 0 8 1 tcpqe 32 351 0 351 11 11 0 2 0 8 0 tcpcb 736 3661 0 3653 127 121 6 17 0 8 3 arp 120 160 0 150 1 0 1 1 0 8 0 inpcb 304 12267 0 12257 157 153 4 16 0 8 2 rttmr 72 35 0 35 9 9 0 1 0 8 0 nd6 48 313 0 303 1 0 1 1 0 8 0 pkpcb 40 94 0 94 7 7 0 1 0 8 0 kcovpl 48 77 0 73 1 0 1 1 0 8 0 ppxss 1248 36 0 36 10 10 0 1 0 8 0 pfstscr 40 125 0 125 7 7 0 1 0 8 0 pffrag 232 38 0 35 5 4 1 1 0 482 0 pffrnode 88 38 0 35 5 4 1 1 0 8 0 pffrent 40 585 0 582 5 4 1 1 0 8 0 pfosfp 40 1431 0 1007 5 0 5 5 0 8 0 pfosfpen 112 1431 0 714 21 0 21 21 0 8 0 pfrktable 1344 288 0 266 6 4 2 3 0 8 0 pfpktdelay 88 284 0 284 7 7 0 7 0 8 0 pftag 88 15 0 10 1 0 1 1 0 8 0 pfqueue 264 45 0 45 4 4 0 1 0 8 0 pfstitem 24 69 0 67 1 0 1 1 0 8 0 pfstkey 112 293 0 291 1 0 1 1 0 8 0 pfstate 320 177 0 175 3 2 1 3 0 8 0 pfsrctr 152 59 0 59 3 3 0 1 0 8 0 pfrule 1360 1193 0 1060 13 1 12 12 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 4677 0 4423 46 28 18 20 0 8 1 art_table 32 4678 0 4423 3 0 3 3 0 8 0 art_node 16 1075 0 1027 1 0 1 1 0 8 0 semupl 112 6 0 6 1 1 0 1 0 8 0 semapl 112 2614 0 2604 1 0 1 1 0 8 0 shmpl 112 139 0 11 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 19898 0 18437 92 0 92 92 0 8 0 ffsino 272 19898 0 18437 98 0 98 98 0 8 0 nchpl 144 40437 0 38834 61 0 61 61 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 149010 0 149010 5 4 1 1 0 8 1 percpumem 16 199 0 163 1 0 1 1 0 8 0 vcpupl 2048 406 0 4 51 0 51 51 0 8 0 vmpool 560 412 0 10 29 0 29 29 0 8 0 pfiaddrpl 120 164 0 119 2 0 2 2 0 8 0 scsiplug 72 11 0 11 4 4 0 1 0 8 0 scxspl 216 119382 0 119382 31 30 1 8 0 8 1 plimitpl 152 1098 0 1087 1 0 1 1 0 8 0 sigapl 424 14796 0 14739 7 0 7 7 0 8 0 futexpl 64 115928 0 115926 4 3 1 1 0 8 0 knotepl 112 120 0 0 3 0 3 3 0 8 0 kqueuepl 216 2573 0 2566 52 51 1 5 0 8 0 pipepl 336 3670 0 3654 88 86 2 12 0 8 0 fdescpl 496 14756 0 14735 4 1 3 4 0 8 0 filepl 152 101328 0 101173 167 158 9 18 0 8 3 lockfpl 104 3828 0 3826 8 7 1 2 0 8 0 lockfspl 48 1090 0 1088 1 0 1 1 0 8 0 sessionpl 144 97 0 84 1 0 1 1 0 8 0 pgrppl 48 164 0 151 1 0 1 1 0 8 0 ucredpl 96 9478 0 9462 1 0 1 1 0 8 0 zombiepl 144 14810 0 14808 3 2 1 1 0 8 0 processpl 1064 14796 0 14738 4 0 4 4 0 8 0 procpl 672 42092 0 42017 20 13 7 8 0 8 0 srpgc 96 116 0 116 16 16 0 1 0 8 0 sosppl 168 105 0 105 13 13 0 1 0 8 0 sockpl 480 21697 0 21666 470 462 8 34 0 8 3 mcl64k 65536 24 0 0 3 0 3 3 0 8 0 mcl16k 16384 41 0 0 6 3 3 3 0 8 0 mcl12k 12288 49 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 33 0 0 4 1 3 3 0 8 0 mcl4k 4096 25 0 0 3 0 3 3 0 8 0 mcl2k2 2112 12 0 0 1 0 1 1 0 8 0 mcl2k 2048 481 0 0 34 9 25 34 0 8 0 mtagpl 96 1317 0 0 25 0 25 25 0 8 0 mbufpl 256 3091 0 0 167 0 167 167 0 8 0 bufpl 288 28328 0 21984 454 0 454 454 0 8 0 anonpl 24 4103035 0 4082285 269 134 135 156 0 186 0 amapchunkpl 152 468652 0 467850 166 133 33 45 0 158 0 amappl16 200 36010 0 35241 135 93 42 53 0 8 0 amappl15 192 999 0 998 8 7 1 1 0 8 0 amappl14 184 2689 0 2686 1 0 1 1 0 8 0 amappl13 176 3870 0 3869 1 0 1 1 0 8 0 amappl12 168 1951 0 1948 1 0 1 1 0 8 0 amappl11 160 1438 0 1424 1 0 1 1 0 8 0 amappl10 152 500 0 489 1 0 1 1 0 8 0 amappl9 144 3189 0 3183 1 0 1 1 0 8 0 amappl8 136 2809 0 2699 4 0 4 4 0 8 0 amappl7 128 1401 0 1387 1 0 1 1 0 8 0 amappl6 120 3295 0 3272 1 0 1 1 0 8 0 amappl5 112 9509 0 9482 1 0 1 1 0 8 0 amappl4 104 4852 0 4824 1 0 1 1 0 8 0 amappl3 96 6358 0 6334 1 0 1 1 0 8 0 amappl2 88 5595 0 5532 3 1 2 2 0 8 0 amappl1 80 268538 0 268026 20 9 11 13 0 8 0 amappl 88 183216 0 182902 9 1 8 8 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 72 141 0 11 3 0 3 3 0 8 0 uaddrrnd 24 15168 0 14744 3 0 3 3 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 15168 0 14744 3 0 3 3 0 8 0 vmmpekpl 168 106235 0 106151 5 1 4 4 0 8 0 vmmpepl 168 1375527 0 1372241 489 316 173 173 0 357 26 vmsppl 368 15167 0 14743 39 0 39 39 0 8 0 rwobjpl 56 325914 0 318032 134 22 112 114 0 8 0 pdppl 4096 30344 0 29888 520 64 456 456 0 8 0 pvpl 32 6952179 0 6929495 460 270 190 256 0 265 0 pmappl 248 15167 0 14743 28 1 27 27 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 1757 0 319 42 0 42 42 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 witness_checkorder(ffff800000e2a028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000e2a028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000e2a018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e2a000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000e2a000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f1d28) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff800027b537b0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff800027b537b0,ffff800027b0a870,ffff800027b0a8d0) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800027b0a940) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027b0a940) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffafc0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a 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+0x23 __mp_lock(ffffffff82969998) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82969998) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800021184ea0,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1615 uvm_map_teardown(fffffd8067b83e90) at uvm_map_teardown+0x262 sys/uvm/uvm_map.c:2789 uvmspace_free(fffffd8067b83e90) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 reaper(ffff8000211497a0) at reaper+0x18b sys/kern/kern_exit.c:462 end trace frame: 0x0, count: -8