Warning: Permanently added '10.128.1.69' (ED25519) to the list of known hosts. 2026/04/14 19:56:35 ignoring optional flag "type"="gce" 2026/04/14 19:56:35 parsed 1 programs 2026/04/14 19:56:37 executed programs: 0 vnd0: sloppy read from proc 66441 (syz-executor.0): blkno 0 bcount 29 witness: lock order reversal: 1st 0xfffffd800b063100 vmmaplk (&map->lock) 2nd 0xfffffd806d50c550 inode (&ip->i_lock) lock order [1] vmmaplk (&map->lock) -> [2] inode (&ip->i_lock) #0 rw_do_enter_write+0xba #1 rrw_enter+0xc6 #2 VOP_LOCK+0xbd #3 vn_lock+0xa4 #4 vn_rdwr+0xd1 #5 vndstrategy+0x4bd #6 physio+0x2d6 #7 spec_read+0x14b #8 VOP_READ+0x101 #9 vn_read+0x17b #10 dofilereadv+0x25a #11 sys_readv+0xd8 #12 syscall+0xbd4 #13 Xsyscall+0x128 lock order [2] inode (&ip->i_lock) -> [1] vmmaplk (&map->lock) #0 rw_do_enter_read+0x99 #1 uvmfault_lookup+0x122 #2 uvm_fault_check+0x4f #3 uvm_fault+0x106 #4 kpageflttrap+0x2f4 #5 kerntrap+0x19d #6 alltraps_kern_meltdown+0x7b #7 copyout+0x64 #8 ffs_read+0x3f2 #9 VOP_READ+0x101 #10 vn_rdwr+0x15b #11 vmcmd_map_readvn+0x130 #12 exec_process_vmcmds+0xef #13 sys_execve+0xd3d #14 start_init+0x3c3 #15 proc_trampoline+0x10 Stopped at db_enter+0x25: 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+0x25 witness_checkorder(fffffd806d50c550,9,0) at witness_checkorder+0x10d1 rw_do_enter_write(fffffd806d50c538,1) at rw_do_enter_write+0xba rrw_enter(fffffd806d50c538,1) at rrw_enter+0xc6 VOP_LOCK(fffffd806b4af050,2001) at VOP_LOCK+0xbd vn_lock(fffffd806b4af050,2001) at vn_lock+0xa4 vn_rdwr(0,fffffd806b4af050,ffff800011a26740,1d,0,1,68d850ee322b7009,0,1d,0) at vn_rdwr+0xd1 vndstrategy(fffffd806b258020) at vndstrategy+0x4bd physio(ffffffff824a0dd0,2902,8000,ffffffff81e52490,ffff80002a2d0070) at physio+0x2d6 spec_read(ffff80002a2cfe50) at spec_read+0x14b VOP_READ(fffffd806eed9870,ffff80002a2d0070,0,fffffd80097fd410) at VOP_READ+0x101 vn_read(fffffd806913b020,ffff80002a2d0070,0) at vn_read+0x17b dofilereadv(ffff8000fffecfc0,5,ffff80002a2d0070,0,ffff80002a2d0130) at dofilereadv+0x25a sys_readv(ffff8000fffecfc0,ffff80002a2d01e0,ffff80002a2d0130) at sys_readv+0xd8 syscall(ffff80002a2d01e0) at syscall+0xbd4 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x198dbef0620, count: -16 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a2cf940 rbx 0 rdx 0x3fd rcx 0 rax 0x1 r8 0xffff80002a2cf820 r9 0x8080808080808080 r10 0xfff9003706766999 r11 0xe90778d4fdbc4163 r12 0xfffffd80040412c0 r13 0xfffffd8004830c58 r14 0x3 r15 0xffffffff834b7546 substchar+0x820b rip 0xffffffff82399935 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a2cf930 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) tid=35213 pid=66441 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=55, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffec7f8,0xffffffff839966c0 process=0xffff8000ffff6688 user=0xffff80002a2cb000, vmspace=0xfffffd800b063000 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 66441 431710 94843 0 7 0 syz-executor.0 *66441 35213 94843 0 7 0x4000000 syz-executor.0 94843 252553 51971 0 3 0x82 nanoslp syz-executor.0 51971 402014 51794 0 3 0x82 thrsleep syz-execprog 51971 369994 51794 0 3 0x4000082 nanoslp syz-execprog 51971 318633 51794 0 3 0x4000082 thrsleep syz-execprog 51971 424013 51794 0 3 0x4000082 kqread syz-execprog 51971 16597 51794 0 3 0x4000082 thrsleep syz-execprog 51971 385985 51794 0 3 0x4000082 wait syz-execprog 51971 31043 51794 0 3 0x4000082 thrsleep syz-execprog 51971 354034 51794 0 3 0x4000082 thrsleep syz-execprog 51971 308104 51794 0 3 0x4000082 thrsleep syz-execprog 51971 423347 51794 0 3 0x4000082 thrsleep syz-execprog 51971 361372 51794 0 3 0x4000082 thrsleep syz-execprog 51794 164074 33434 0 3 0x10008a sigsusp ksh 33434 444384 73944 0 3 0x98 kqread sshd-session 73944 227001 3367 0 3 0x92 kqread sshd-session 32505 414544 1 0 3 0x100083 ttyin getty 3367 422993 1 0 3 0x88 kqread sshd 15892 58236 42060 74 3 0x1100092 bpf pflogd 42060 59727 1 0 3 0x80 sbwait pflogd 37679 335577 48281 73 3 0x1100090 kqread syslogd 48281 303359 1 0 3 0x100082 sbwait syslogd 29266 158062 1 0 3 0x100080 kqread resolvd 94300 194645 49379 77 3 0x100092 kqread dhcpleased 62738 117183 49379 77 3 0x100092 kqread dhcpleased 49379 216798 1 0 3 0x80 kqread dhcpleased 18623 143793 0 0 3 0x14200 bored smr 3645 319579 0 0 3 0x14200 pgzero zerothread 84842 407032 0 0 3 0x14200 aiodoned aiodoned 4684 469713 0 0 3 0x14200 syncer update 12850 250046 0 0 3 0x14200 cleaner cleaner 63064 410193 0 0 3 0x14200 reaper reaper 24204 204780 0 0 3 0x14200 pgdaemon pagedaemon 22208 100474 0 0 3 0x14200 bored viomb 32107 176817 0 0 3 0x40014200 acpi0 acpi0 19527 492964 0 0 3 0x40014200 idle1 9037 164949 0 0 3 0x14200 bored softnet1 18608 241566 0 0 2 0x14200 softnet0 24010 46659 0 0 3 0x14200 bored systqmp 72919 436470 0 0 3 0x14200 bored systq 86991 507900 0 0 3 0x14200 tmoslp softclockmp 82392 359684 0 0 3 0x40014200 tmoslp softclock 77937 440791 0 0 3 0x40014200 idle0 1 25641 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 66441 (syz-executor.0) thread 0xffff8000fffecfc0 (35213) shared rwlock vmmaplk r = 0 (0xfffffd800b063100) #0 witness_lock+0x5f1 #1 rw_do_enter_read+0x3e8 #2 uvm_vslock_device+0x149 #3 physio+0x257 #4 spec_read+0x14b #5 VOP_READ+0x101 #6 vn_read+0x17b #7 dofilereadv+0x25a #8 sys_readv+0xd8 #9 syscall+0xbd4 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83acea00) #0 witness_lock+0x5f1 #1 vn_read+0x56 #2 dofilereadv+0x25a #3 sys_readv+0xd8 #4 syscall+0xbd4 #5 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11033 12070K 12072K 166960K 12129 0 pcb 17 12K 12K 166960K 17 0 rtable 83 2K 2K 166960K 177 0 pf 20 15K 18K 166960K 34 0 ifaddr 15 2K 2K 166960K 19 0 ifgroup 27 1K 1K 166960K 32 0 sysctl 1 1K 9K 166960K 5 0 counters 56 35K 35K 166960K 58 0 ioctlops 0 0K 4K 166960K 1477 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1217 77K 77K 166960K 1286 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 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 3 8K 13K 166960K 38 0 proc 69 115K 131K 166960K 383 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 367 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 193 122K 231K 166960K 4118 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 30 60K 112K 166960K 1345 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 7 0K 0K 166960K 10 0 temp 1 9068K 9132K 166960K 4657 0 kqueue 13 20K 20K 166960K 46 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 24 0 21 1 0 1 1 0 8 0 rtentry 176 45 0 12 3 1 2 2 0 8 0 unpcb 144 69 0 52 1 0 1 1 0 8 0 syncache 336 9 0 9 2 1 1 1 0 8 1 tcpcb 736 12 0 9 1 0 1 1 0 8 0 arp 136 6 0 2 1 0 1 1 0 8 0 inpcb 328 45 0 39 1 0 1 1 0 8 0 nd6 152 6 0 3 2 1 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 17 0 4 1 0 1 1 0 8 0 pfstkey 128 17 0 4 1 0 1 1 0 8 0 pfstate 448 17 0 4 2 0 2 2 0 8 0 pfrule 1360 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 256 193 0 48 13 3 10 10 0 8 0 art_table 40 194 0 48 3 1 2 2 0 8 0 art_node 32 45 0 15 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1584 0 129 93 1 92 92 0 8 1 ffsino 296 1584 0 129 114 1 113 113 0 8 1 nchpl 144 1851 0 112 65 0 65 65 0 8 0 vnodes 216 1599 0 0 89 0 89 89 0 8 0 namei 1024 6729 0 6729 3 2 1 2 0 8 1 percpumem 16 44 0 1 1 0 1 1 0 8 0 kstatmem 264 14 0 2 1 0 1 1 0 8 0 scxspl 216 9857 0 9857 11 10 1 8 1 8 1 plimitpl 152 52 0 42 1 0 1 1 0 8 0 sigapl 424 440 0 406 7 2 5 6 0 8 1 knotepl 120 69 0 0 2 0 2 2 0 8 0 kqueuepl 224 42 0 33 1 0 1 1 0 8 0 pipepl 344 173 0 166 4 2 2 2 0 8 1 fdescpl 528 424 0 406 3 1 2 3 0 8 0 filepl 160 2070 0 1993 5 1 4 4 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 28 0 18 1 0 1 1 0 8 0 pgrppl 48 28 0 18 1 0 1 1 0 8 0 ucredpl 104 153 0 139 1 0 1 1 0 8 0 zombiepl 144 406 0 406 2 1 1 1 0 8 1 processpl 1232 440 0 406 5 1 4 4 0 8 1 procpl 664 463 0 418 7 2 5 5 0 8 0 sockpl 752 138 0 112 3 0 3 3 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 212 0 0 24 0 24 24 0 8 0 mcl2k 2048 12 0 0 2 0 2 2 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 210 0 0 12 0 12 12 0 8 0 bufpl 280 4780 0 179 329 0 329 329 0 8 0 anonpl 32 9710 0 0 81 2 79 79 0 246 0 amapchunkpl 152 13219 0 12806 41 14 27 32 0 158 9 amappl16 200 4151 0 4091 8 4 4 5 0 8 0 amappl15 192 14 0 13 2 1 1 1 0 8 0 amappl14 184 388 0 385 1 0 1 1 0 8 0 amappl13 176 235 0 222 3 1 2 2 0 8 0 amappl12 168 723 0 706 3 1 2 2 0 8 1 amappl11 160 98 0 97 2 1 1 1 0 8 0 amappl10 152 134 0 119 3 1 2 2 0 8 1 amappl9 144 1162 0 1161 3 2 1 1 0 8 0 amappl8 136 245 0 220 2 0 2 2 0 8 1 amappl7 128 274 0 253 3 1 2 2 0 8 0 amappl6 120 243 0 238 2 1 1 1 0 8 0 amappl5 112 204 0 194 1 0 1 1 0 8 0 amappl4 104 457 0 436 2 1 1 2 0 8 0 amappl3 96 1490 0 1435 4 2 2 3 0 8 0 amappl2 88 1060 0 999 7 3 4 5 0 8 2 amappl1 80 17546 0 16990 34 12 22 24 0 8 9 amappl 88 3031 0 2925 7 3 4 5 0 92 1 uvmvnodes 80 90 0 0 2 0 2 2 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 424 0 406 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 424 0 406 1 0 1 1 0 8 0 vmmpekpl 168 11864 0 11843 2 0 2 2 0 8 0 vmmpepl 168 61611 0 60139 130 14 116 125 0 357 44 vmsppl 488 423 0 406 5 1 4 4 0 8 1 rwobjpl 80 25380 0 24430 55 19 36 39 0 8 8 pdppl 4096 855 0 812 107 44 63 67 0 8 20 pvpl 32 52428 0 0 423 0 423 423 0 265 0 pmappl 256 423 0 406 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 271 0 54 7 0 7 7 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8393eff0) at x86_ipi_db+0x27 x86_ipi_handler() at x86_ipi_handler+0xd9 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff83ace200) at __mp_lock+0x199 intr_handler(ffff80002a320880,ffff800000079600) at intr_handler+0xe9 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff83ace200) at __mp_lock+0x192 softintr_dispatch(0) at softintr_dispatch+0x125 dosoftint(0) at dosoftint+0x54 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x75b9ba6c1620, count: -10 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x25 witness_checkorder(fffffd806d50c550,9,0) at witness_checkorder+0x10d1 rw_do_enter_write(fffffd806d50c538,1) at rw_do_enter_write+0xba rrw_enter(fffffd806d50c538,1) at rrw_enter+0xc6 VOP_LOCK(fffffd806b4af050,2001) at VOP_LOCK+0xbd vn_lock(fffffd806b4af050,2001) at vn_lock+0xa4 vn_rdwr(0,fffffd806b4af050,ffff800011a26740,1d,0,1,68d850ee322b7009,0,1d,0) at vn_rdwr+0xd1 vndstrategy(fffffd806b258020) at vndstrategy+0x4bd physio(ffffffff824a0dd0,2902,8000,ffffffff81e52490,ffff80002a2d0070) at physio+0x2d6 spec_read(ffff80002a2cfe50) at spec_read+0x14b VOP_READ(fffffd806eed9870,ffff80002a2d0070,0,fffffd80097fd410) at VOP_READ+0x101 vn_read(fffffd806913b020,ffff80002a2d0070,0) at vn_read+0x17b dofilereadv(ffff8000fffecfc0,5,ffff80002a2d0070,0,ffff80002a2d0130) at dofilereadv+0x25a sys_readv(ffff8000fffecfc0,ffff80002a2d01e0,ffff80002a2d0130) at sys_readv+0xd8 syscall(ffff80002a2d01e0) at syscall+0xbd4 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x198dbef0620, count: -16