Warning: Permanently added '10.128.0.74' (ED25519) to the list of known hosts. 2026/01/12 22:02:25 ignoring optional flag "type"="gce" 2026/01/12 22:02:25 parsed 1 programs 2026/01/12 22:02:26 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 *342233 55866 0 0 0x4000000 0 syz-executor.0 db_enter() at db_enter+0x25 panic(ffffffff833a4818) at panic+0x1cf ufsdirhash_lookup(fffffd80683f2600,ffff80002a819800,1,fffffd80683f26bc,ffff80002a83b7a0,ffff80002a83b7ac) at ufsdirhash_lookup+0xb9a ufs_lookup() at ufs_lookup+0xf66 VOP_LOOKUP(fffffd80725df990,ffff80002a83baf8,ffff80002a83bb28) at VOP_LOOKUP+0x6e vfs_lookup(ffff80002a83bac8) at vfs_lookup+0x921 namei(ffff80002a83bac8) at namei+0x7ca dorenameat(ffff80002a816018,4,200000c0,3,0) at dorenameat+0x91 syscall(ffff80002a83bcb0) at syscall+0x962 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3200857c140, count: 5 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(ffffffff833a4818) at panic+0x1cf ufsdirhash_lookup(fffffd80683f2600,ffff80002a819800,1,fffffd80683f26bc,ffff80002a83b7a0,ffff80002a83b7ac) at ufsdirhash_lookup+0xb9a ufs_lookup() at ufs_lookup+0xf66 VOP_LOOKUP(fffffd80725df990,ffff80002a83baf8,ffff80002a83bb28) at VOP_LOOKUP+0x6e vfs_lookup(ffff80002a83bac8) at vfs_lookup+0x921 namei(ffff80002a83bac8) at namei+0x7ca dorenameat(ffff80002a816018,4,200000c0,3,0) at dorenameat+0x91 syscall(ffff80002a83bcb0) at syscall+0x962 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3200857c140, count: -10 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80002a83b5d0 rbx 0xffff800000c55de0 rdx 0x3fd rcx 0 rax 0x33 r8 0x101010101010101 r9 0x8080808080808080 r10 0xc328f961d6bd6e47 r11 0x2f3ba70292400ad9 r12 0 r13 0xffff800001547200 r14 0 r15 0x1 rip 0xffffffff8264ab55 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a83b5c0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb> show proc PROC (syz-executor.0) tid=342233 pid=55866 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a817770,0xffff80002a816d20 process=0xffff80002a7d0490 user=0xffff80002a836000, vmspace=0xfffffd807e9c95c0 estcpu=18, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 55866 41167 76880 0 2 0 syz-executor.0 *55866 342233 76880 0 7 0x4000000 syz-executor.0 55866 259955 76880 0 3 0x4000080 fsleep syz-executor.0 76880 523601 26691 0 3 0x82 nanoslp syz-executor.0 26691 73280 81902 0 3 0x82 thrsleep syz-execprog 26691 474578 81902 0 3 0x4000082 thrsleep syz-execprog 26691 319251 81902 0 3 0x4000082 kqread syz-execprog 26691 418572 81902 0 3 0x4000082 thrsleep syz-execprog 26691 130000 81902 0 3 0x4000082 wait syz-execprog 26691 453965 81902 0 3 0x4000082 thrsleep syz-execprog 26691 297210 81902 0 3 0x4000082 thrsleep syz-execprog 26691 446969 81902 0 3 0x4000082 thrsleep syz-execprog 26691 186823 81902 0 3 0x4000082 thrsleep syz-execprog 81902 481439 90277 0 3 0x10008a sigsusp ksh 90277 128858 33051 0 3 0x98 kqread sshd-session 33051 13386 66619 0 3 0x92 kqread sshd-session 36462 77440 1 0 3 0x100083 ttyin getty 66619 430022 1 0 3 0x88 kqread sshd 31351 160556 15774 73 3 0x1100090 kqread syslogd 15774 495898 1 0 3 0x100082 sbwait syslogd 16242 382505 1 0 3 0x100080 kqread resolvd 64750 94450 19244 77 3 0x100092 kqread dhcpleased 35754 170572 19244 77 3 0x100092 kqread dhcpleased 19244 468967 1 0 3 0x80 kqread dhcpleased 64278 62012 0 0 3 0x14200 bored smr 46285 440966 0 0 2 0x14200 zerothread 45923 67044 0 0 3 0x14200 aiodoned aiodoned 10337 320822 0 0 3 0x14200 syncer update 28487 214640 0 0 3 0x14200 cleaner cleaner 88458 476004 0 0 3 0x14200 reaper reaper 81384 22573 0 0 3 0x14200 pgdaemon pagedaemon 39784 330006 0 0 3 0x14200 bored viomb 39747 146909 0 0 3 0x40014200 acpi0 acpi0 52431 72890 0 0 3 0x14200 bored softnet0 81238 299860 0 0 3 0x14200 bored systqmp 69299 126429 0 0 3 0x14200 bored systq 84258 380425 0 0 3 0x40014200 tmoslp softclock 15670 172341 0 0 3 0x40014200 idle0 1 457897 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 11003 12086K 12118K 166960K 12090 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 1263 79K 80K 166960K 1283 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 21 3K 3K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 3 8K 12K 166960K 35 0 proc 57 58K 67K 166960K 303 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 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 340 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 165 85K 198K 166960K 3886 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 26 52K 104K 166960K 1258 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 8656K 8720K 166960K 4114 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 256 192 0 48 9 0 9 9 0 8 0 art_table 40 193 0 48 2 0 2 2 0 8 0 art_node 32 45 0 15 1 0 1 1 0 8 0 dirhash 1024 20 0 0 3 0 3 3 0 8 0 dino2pl 256 1574 0 81 94 0 94 94 0 8 0 ffsino 256 1574 0 81 94 0 94 94 0 8 0 nchpl 144 1830 0 104 65 0 65 65 0 8 0 vnodes 216 1583 0 0 88 0 88 88 0 8 0 namei 1024 6344 0 6343 3 0 3 3 0 8 2 kstatmem 264 10 0 2 1 0 1 1 0 8 0 scxspl 216 9224 0 9224 8 0 8 8 1 8 8 plimitpl 152 51 0 42 1 0 1 1 0 8 0 sigapl 424 408 0 379 5 0 5 5 0 8 1 knotepl 120 7517 0 7480 2 0 2 2 0 8 0 kqueuepl 184 42 0 33 1 0 1 1 0 8 0 pipepl 304 161 0 154 1 0 1 1 0 8 0 fdescpl 448 395 0 379 4 0 4 4 0 8 2 filepl 120 1891 0 1820 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 144 379 0 379 1 0 1 1 0 8 1 processpl 1152 408 0 379 3 0 3 3 0 8 0 procpl 664 428 0 389 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 10002 0 9944 16 0 16 16 0 8 8 mcl2k 2048 168 0 168 1 0 1 1 0 8 1 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 13366 0 13294 8 0 8 8 0 8 3 bufpl 280 4692 0 206 321 0 321 321 0 8 0 anonpl 24 198879 0 195485 59 0 59 59 0 187 26 amapchunkpl 152 12209 0 11873 28 0 28 28 0 158 12 amappl16 200 3989 0 3914 5 0 5 5 0 8 0 amappl15 192 15 0 15 1 0 1 1 0 8 1 amappl14 184 19 0 17 1 0 1 1 0 8 0 amappl13 176 382 0 380 1 0 1 1 0 8 0 amappl12 168 824 0 798 3 0 3 3 0 8 1 amappl11 160 47 0 46 1 0 1 1 0 8 0 amappl10 152 85 0 72 1 0 1 1 0 8 0 amappl9 144 1060 0 1060 1 0 1 1 0 8 1 amappl8 136 158 0 139 1 0 1 1 0 8 0 amappl7 128 174 0 169 2 0 2 2 0 8 1 amappl6 120 372 0 358 2 0 2 2 0 8 1 amappl5 112 156 0 149 1 0 1 1 0 8 0 amappl4 104 586 0 562 2 0 2 2 0 8 0 amappl3 96 1320 0 1274 2 0 2 2 0 8 0 amappl2 88 976 0 920 5 0 5 5 0 8 2 amappl1 80 16528 0 16037 26 7 19 23 0 8 8 amappl 88 2827 0 2741 4 0 4 4 0 92 1 uvmvnodes 80 87 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 24 395 0 379 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 395 0 379 1 0 1 1 0 8 0 vmmpekpl 168 11504 0 11480 2 0 2 2 0 8 0 vmmpepl 168 58595 0 57270 121 0 121 121 0 357 58 vmsppl 368 394 0 379 3 0 3 3 0 8 1 rwobjpl 40 23932 0 23075 19 2 17 19 0 8 4 pdppl 4096 796 0 758 100 46 54 62 0 8 16 pvpl 32 550428 0 542173 444 143 301 444 0 265 220 pmappl 216 394 0 379 2 0 2 2 0 8 1 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 342 0 46 9 0 9 9 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x25 panic(ffffffff833a4818) at panic+0x1cf ufsdirhash_lookup(fffffd80683f2600,ffff80002a819800,1,fffffd80683f26bc,ffff80002a83b7a0,ffff80002a83b7ac) at ufsdirhash_lookup+0xb9a ufs_lookup() at ufs_lookup+0xf66 VOP_LOOKUP(fffffd80725df990,ffff80002a83baf8,ffff80002a83bb28) at VOP_LOOKUP+0x6e vfs_lookup(ffff80002a83bac8) at vfs_lookup+0x921 namei(ffff80002a83bac8) at namei+0x7ca dorenameat(ffff80002a816018,4,200000c0,3,0) at dorenameat+0x91 syscall(ffff80002a83bcb0) at syscall+0x962 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3200857c140, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x25 panic(ffffffff833a4818) at panic+0x1cf ufsdirhash_lookup(fffffd80683f2600,ffff80002a819800,1,fffffd80683f26bc,ffff80002a83b7a0,ffff80002a83b7ac) at ufsdirhash_lookup+0xb9a ufs_lookup() at ufs_lookup+0xf66 VOP_LOOKUP(fffffd80725df990,ffff80002a83baf8,ffff80002a83bb28) at VOP_LOOKUP+0x6e vfs_lookup(ffff80002a83bac8) at vfs_lookup+0x921 namei(ffff80002a83bac8) at namei+0x7ca dorenameat(ffff80002a816018,4,200000c0,3,0) at dorenameat+0x91 syscall(ffff80002a83bcb0) at syscall+0x962 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3200857c140, count: -10