Warning: Permanently added '10.128.1.22' (ED25519) to the list of known hosts. 2026/03/11 00:41:49 ignoring optional flag "type"="gce" 2026/03/11 00:41:49 parsed 1 programs 2026/03/11 00:41:50 executed programs: 0 panic: ufsdirhash_lookup: bad offset in hash array Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *194864 64017 0 0 0x4000000 0 syz-executor.0 db_enter() at db_enter+0x25 panic(ffffffff83436cfb) at panic+0x1cf ufsdirhash_lookup(fffffd8069b37100,ffffffff8340b042,2,fffffd8069b371bc,ffff80002a7fcd40,0) at ufsdirhash_lookup+0xb9a ufs_lookup() at ufs_lookup+0xf66 VOP_LOOKUP(fffffd8076dd58b8,ffff80002a7fced8,ffff80002a7fce70) at VOP_LOOKUP+0x6e unveil_find_cover(fffffd8076dd58b8,ffff80002a80a548) at unveil_find_cover+0x16d unveil_start_relative(ffff80002a80a548,ffff80002a7fd220,fffffd8076dd58b8) at unveil_start_relative+0x16e namei(ffff80002a7fd220) at namei+0x650 vn_open(ffff80002a7fd220,201,0) at vn_open+0x1f1 doopenat(ffff80002a80a548,4,20000240,200,0,0,7d8bec80cf062b1f) at doopenat+0x352 sys_openat(ffff80002a80a548,ffff80002a7fd4c0,ffff80002a7fd410) at sys_openat+0x58 syscall(ffff80002a7fd4c0) at syscall+0x962 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2c053be91d0, count: 2 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: ufsdirhash_lookup: bad offset in hash array ddb> trace db_enter() at db_enter+0x25 panic(ffffffff83436cfb) at panic+0x1cf ufsdirhash_lookup(fffffd8069b37100,ffffffff8340b042,2,fffffd8069b371bc,ffff80002a7fcd40,0) at ufsdirhash_lookup+0xb9a ufs_lookup() at ufs_lookup+0xf66 VOP_LOOKUP(fffffd8076dd58b8,ffff80002a7fced8,ffff80002a7fce70) at VOP_LOOKUP+0x6e unveil_find_cover(fffffd8076dd58b8,ffff80002a80a548) at unveil_find_cover+0x16d unveil_start_relative(ffff80002a80a548,ffff80002a7fd220,fffffd8076dd58b8) at unveil_start_relative+0x16e namei(ffff80002a7fd220) at namei+0x650 vn_open(ffff80002a7fd220,201,0) at vn_open+0x1f1 doopenat(ffff80002a80a548,4,20000240,200,0,0,7d8bec80cf062b1f) at doopenat+0x352 sys_openat(ffff80002a80a548,ffff80002a7fd4c0,ffff80002a7fd410) at sys_openat+0x58 syscall(ffff80002a7fd4c0) at syscall+0x962 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2c053be91d0, count: -13 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80002a7fcb70 rbx 0xffff800000c55420 rdx 0x3fd rcx 0 rax 0x33 r8 0x101010101010101 r9 0x8080808080808080 r10 0x4a98b341cf8cdaf1 r11 0xcfb5f01bf8a1822e r12 0 r13 0xffff8000015ad200 r14 0 r15 0x1 rip 0xffffffff8243f2b5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a7fcb60 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb> show proc PROC (syz-executor.0) tid=194864 pid=64017 tcnt=2 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=0xffff80002a80afa8,0xffffffff839281c0 process=0xffff80002a7bcd90 user=0xffff80002a7f8000, vmspace=0xfffffd807ecebb80 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 64017 97886 80396 0 2 0 syz-executor.0 *64017 194864 80396 0 7 0x4000000 syz-executor.0 80396 403761 36846 0 3 0x82 nanoslp syz-executor.0 36846 231335 78286 0 3 0x82 thrsleep syz-execprog 36846 156183 78286 0 3 0x4000082 thrsleep syz-execprog 36846 312214 78286 0 3 0x4000082 thrsleep syz-execprog 36846 86997 78286 0 3 0x4000082 thrsleep syz-execprog 36846 60768 78286 0 3 0x4000082 thrsleep syz-execprog 36846 421686 78286 0 3 0x4000082 wait syz-execprog 36846 481530 78286 0 3 0x4000082 kqread syz-execprog 36846 245955 78286 0 3 0x4000082 thrsleep syz-execprog 36846 447236 78286 0 3 0x4000082 thrsleep syz-execprog 78286 252292 91852 0 3 0x10008a sigsusp ksh 91852 320034 2772 0 3 0x98 kqread sshd-session 2772 369869 20124 0 3 0x92 kqread sshd-session 53379 25612 1 0 3 0x100083 ttyin getty 20124 108813 1 0 3 0x88 kqread sshd 87699 243175 97176 73 3 0x1100090 kqread syslogd 97176 374972 1 0 3 0x100082 sbwait syslogd 30982 465977 1 0 3 0x100080 kqread resolvd 54136 298962 15360 77 3 0x100092 kqread dhcpleased 13232 512444 15360 77 3 0x100092 kqread dhcpleased 15360 296820 1 0 3 0x80 kqread dhcpleased 11729 124554 0 0 3 0x14200 bored smr 35854 357074 0 0 2 0x14200 zerothread 20730 377952 0 0 3 0x14200 aiodoned aiodoned 92989 220035 0 0 3 0x14200 syncer update 84079 229794 0 0 3 0x14200 cleaner cleaner 37613 94447 0 0 3 0x14200 reaper reaper 12031 95568 0 0 3 0x14200 pgdaemon pagedaemon 58984 291724 0 0 3 0x14200 bored viomb 97723 7073 0 0 3 0x40014200 acpi0 acpi0 94421 187831 0 0 3 0x14200 bored softnet0 79876 517288 0 0 3 0x14200 smrbar systqmp 44070 283328 0 0 3 0x14200 bored systq 33819 31948 0 0 3 0x40014200 tmoslp softclock 48509 230167 0 0 3 0x40014200 idle0 1 408479 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11006 12086K 12119K 166960K 12093 0 pcb 17 12K 12K 166960K 17 0 rtable 83 2K 2K 166960K 175 0 pf 16 10K 10K 166960K 19 0 ifaddr 14 2K 2K 166960K 18 0 ifgroup 22 1K 1K 166960K 27 0 sysctl 1 1K 9K 166960K 5 0 counters 26 16K 16K 166960K 27 0 ioctlops 0 0K 2K 166960K 23 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1215 76K 77K 166960K 1280 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 30 5K 5K 166960K 30 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 3 8K 12K 166960K 35 0 proc 58 66K 67K 166960K 328 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 22 1K 1K 166960K 33 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 344 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 155 93K 206K 166960K 3858 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 26 52K 104K 166960K 1268 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 6 0K 0K 166960K 9 0 temp 1 9060K 9124K 166960K 4609 0 kqueue 13 20K 20K 166960K 46 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 25 0 22 1 0 1 1 0 8 0 rtentry 136 45 0 12 2 0 2 2 0 8 0 unpcb 144 67 0 52 1 0 1 1 0 8 0 syncache 336 9 0 9 1 0 1 1 0 8 1 tcpcb 736 12 0 9 1 0 1 1 0 8 0 arp 96 6 0 2 1 0 1 1 0 8 0 inpcb 328 38 0 32 1 0 1 1 0 8 0 nd6 112 6 0 3 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 193 0 48 10 0 10 10 0 8 0 art_table 40 194 0 48 2 0 2 2 0 8 0 art_node 32 45 0 14 1 0 1 1 0 8 0 dirhash 1024 23 0 0 3 0 3 3 0 8 0 dino2pl 256 1573 0 127 91 0 91 91 0 8 0 ffsino 256 1573 0 127 91 0 91 91 0 8 0 nchpl 144 1832 0 106 65 0 65 65 0 8 1 vnodes 216 1582 0 0 88 0 88 88 0 8 0 namei 1024 6680 0 6679 3 0 3 3 0 8 2 kstatmem 264 10 0 2 1 0 1 1 0 8 0 scxspl 216 9278 0 9278 8 0 8 8 1 8 8 plimitpl 152 51 0 42 1 0 1 1 0 8 0 sigapl 424 411 0 382 5 0 5 5 0 8 1 knotepl 120 6962 0 6925 2 0 2 2 0 8 0 kqueuepl 184 42 0 33 1 0 1 1 0 8 0 pipepl 304 167 0 160 1 0 1 1 0 8 0 fdescpl 448 398 0 382 4 0 4 4 0 8 2 filepl 120 2198 0 2126 3 0 3 3 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 27 0 18 1 0 1 1 0 8 0 pgrppl 48 27 0 18 1 0 1 1 0 8 0 ucredpl 104 147 0 136 1 0 1 1 0 8 0 zombiepl 144 382 0 382 1 0 1 1 0 8 1 processpl 1152 411 0 382 3 0 3 3 0 8 0 procpl 664 431 0 393 5 0 5 5 0 8 1 sockpl 552 130 0 106 2 0 2 2 0 8 0 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 8990 0 8936 18 3 15 17 0 8 8 mcl2k 2048 91 0 91 1 0 1 1 0 8 1 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 12215 0 12147 9 0 9 9 0 8 4 bufpl 280 4539 0 178 312 0 312 312 0 8 0 anonpl 24 195089 0 191757 59 0 59 59 0 187 25 amapchunkpl 152 12087 0 11778 29 0 29 29 0 158 12 amappl16 200 3760 0 3692 5 0 5 5 0 8 1 amappl15 192 20 0 20 1 0 1 1 0 8 1 amappl14 184 365 0 362 1 0 1 1 0 8 0 amappl13 176 229 0 217 2 0 2 2 0 8 0 amappl12 168 695 0 679 2 0 2 2 0 8 1 amappl11 160 19 0 19 1 0 1 1 0 8 1 amappl10 152 102 0 91 1 0 1 1 0 8 0 amappl9 144 1003 0 1002 1 0 1 1 0 8 0 amappl8 136 277 0 259 1 0 1 1 0 8 0 amappl7 128 169 0 161 2 0 2 2 0 8 1 amappl6 120 328 0 313 2 0 2 2 0 8 0 amappl5 112 142 0 136 1 0 1 1 0 8 0 amappl4 104 794 0 758 4 0 4 4 0 8 2 amappl3 96 1237 0 1199 2 0 2 2 0 8 0 amappl2 88 926 0 880 4 0 4 4 0 8 1 amappl1 80 16880 0 16389 24 5 19 21 0 8 8 amappl 88 2819 0 2740 4 0 4 4 0 92 0 uvmvnodes 80 86 0 0 2 0 2 2 0 8 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 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 24 398 0 382 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 398 0 382 1 0 1 1 0 8 0 vmmpekpl 168 11505 0 11484 2 0 2 2 0 8 0 vmmpepl 168 58708 0 57398 120 0 120 120 0 357 58 vmsppl 368 397 0 382 3 0 3 3 0 8 1 rwobjpl 40 24086 0 23251 19 1 18 19 0 8 3 pdppl 4096 802 0 764 98 42 56 62 0 8 18 pvpl 32 548684 0 540623 482 149 333 444 0 265 254 pmappl 216 397 0 382 2 0 2 2 0 8 1 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 338 0 45 9 0 9 9 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x25 panic(ffffffff83436cfb) at panic+0x1cf ufsdirhash_lookup(fffffd8069b37100,ffffffff8340b042,2,fffffd8069b371bc,ffff80002a7fcd40,0) at ufsdirhash_lookup+0xb9a ufs_lookup() at ufs_lookup+0xf66 VOP_LOOKUP(fffffd8076dd58b8,ffff80002a7fced8,ffff80002a7fce70) at VOP_LOOKUP+0x6e unveil_find_cover(fffffd8076dd58b8,ffff80002a80a548) at unveil_find_cover+0x16d unveil_start_relative(ffff80002a80a548,ffff80002a7fd220,fffffd8076dd58b8) at unveil_start_relative+0x16e namei(ffff80002a7fd220) at namei+0x650 vn_open(ffff80002a7fd220,201,0) at vn_open+0x1f1 doopenat(ffff80002a80a548,4,20000240,200,0,0,7d8bec80cf062b1f) at doopenat+0x352 sys_openat(ffff80002a80a548,ffff80002a7fd4c0,ffff80002a7fd410) at sys_openat+0x58 syscall(ffff80002a7fd4c0) at syscall+0x962 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2c053be91d0, count: -13 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x25 panic(ffffffff83436cfb) at panic+0x1cf ufsdirhash_lookup(fffffd8069b37100,ffffffff8340b042,2,fffffd8069b371bc,ffff80002a7fcd40,0) at ufsdirhash_lookup+0xb9a ufs_lookup() at ufs_lookup+0xf66 VOP_LOOKUP(fffffd8076dd58b8,ffff80002a7fced8,ffff80002a7fce70) at VOP_LOOKUP+0x6e unveil_find_cover(fffffd8076dd58b8,ffff80002a80a548) at unveil_find_cover+0x16d unveil_start_relative(ffff80002a80a548,ffff80002a7fd220,fffffd8076dd58b8) at unveil_start_relative+0x16e namei(ffff80002a7fd220) at namei+0x650 vn_open(ffff80002a7fd220,201,0) at vn_open+0x1f1 doopenat(ffff80002a80a548,4,20000240,200,0,0,7d8bec80cf062b1f) at doopenat+0x352 sys_openat(ffff80002a80a548,ffff80002a7fd4c0,ffff80002a7fd410) at sys_openat+0x58 syscall(ffff80002a7fd4c0) at syscall+0x962 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2c053be91d0, count: -13