syzbot


panic: fc_ioctls != NULL, but fc_nioctls=-NUM

Status: fixed on 2020/11/23 06:38
Reported-by: syzbot+1a883897bd982d99d341@syzkaller.appspotmail.com
Fix commit: 3d4ae1b3d110 kern: dup: do not assume oldfde is valid
First crash: 805d, last: 805d

Sample crash report:
panic: fc_ioctls != NULL, but fc_nioctls=-16162
cpuid = 0
time = 1606113224
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0025513950
vpanic() at vpanic+0x1c7/frame 0xfffffe00255139b0
panic() at panic+0x43/frame 0xfffffe0025513a10
kern_dup() at kern_dup+0xad1/frame 0xfffffe0025513ab0
amd64_syscall() at amd64_syscall+0x247/frame 0xfffffe0025513bf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0025513bf0
--- syscall (90, FreeBSD ELF64, sys_dup2), rip = 0x2e49ba, rsp = 0x7fffffffe5c8, rbp = 0x7fffffffea50 ---
KDB: enter: panic
[ thread pid 765 tid 100083 ]
Stopped at      kdb_enter+0x67: movq    $0,0x14881f6(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx                       0x80
rdx         0xffffffff818bcb81
rbx                          0
rsp         0xfffffe0025513930
rbp         0xfffffe0025513950
rsi                        0x1
rdi                          0
r8                           0
r9                  0xffffffff
r10                          0
r11         0xfffffe0023b49d10
r12         0xffffffff820671c0  ddb_dbbe
r13                          0
r14         0xffffffff819643dc
r15         0xffffffff819643dc
rip         0xffffffff810d3407  kdb_enter+0x67
rflags                    0x86
kdb_enter+0x67: movq    $0,0x14881f6(%rip)
db> show proc
Process 765 (syz-executor.1) at 0xfffff80004ac7528:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 762 at 0xfffff8003f127528
 ABI: FreeBSD ELF64
 arguments: /root/syz-executor.1
 reaper: 0xfffff80004291528 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe002582f9f0
   (map 0xfffffe002582f9f0)
   (map.pmap 0xfffffe002582fab0)
   (pmap 0xfffffe002582fb10)
 threads: 1
100083                   Run     CPU 0                       syz-executor.1
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  766   764   764     0  R       CPU 1                       sh
  765   762   760     0  R       CPU 0                       syz-executor.1
  764   762   764     0  Ss      wait    0xfffff8003f127000  syz-executor.0
  762   760   760     0  R       (threaded)                  syz-fuzzer
100106                   S       uwait   0xfffff80004a36d00  syz-fuzzer
100107                   S       uwait   0xfffff80026f07280  syz-fuzzer
100108                   S       uwait   0xfffff80026f07380  syz-fuzzer
100109                   RunQ                                syz-fuzzer
100110                   S       uwait   0xfffff80026f07580  syz-fuzzer
100111                   S       uwait   0xfffff80026f07680  syz-fuzzer
100112                   S       uwait   0xfffff8003f0cfe00  syz-fuzzer
100113                   S       kqread  0xfffff80026f73500  syz-fuzzer
100114                   D       ufs     0xfffff8003f101dc8  syz-fuzzer
  760   758   760     0  Ss      pause   0xfffff8003f127b00  csh
  758   682   758     0  Ss      select  0xfffff8003f0cfbc0  sshd
  742     1   742     0  Ss+     ttyin   0xfffff800046a3cb0  getty
  741     1   741     0  Ss+     ttyin   0xfffff800049374b0  getty
  740     1   740     0  Ss+     ttyin   0xfffff800049a54b0  getty
  739     1   739     0  Ss+     ttyin   0xfffff800049a58b0  getty
  738     1   738     0  Ss+     ttyin   0xfffff800049a5cb0  getty
  737     1   737     0  Ss+     ttyin   0xfffff800049960b0  getty
  736     1   736     0  Ss+     ttyin   0xfffff800049964b0  getty
  735     1   735     0  Ss+     ttyin   0xfffff800049968b0  getty
  734     1   734     0  Ss+     ttyin   0xfffff80004996cb0  getty
  732     1    24     0  S+      piperd  0xfffff80026ea85d0  logger
  731   730    24     0  S+      nanslp  0xffffffff8252ed90  sleep
  730     1    24     0  S+      wait    0xfffff80026e83528  sh
  686     1   686     0  Ss      nanslp  0xffffffff8252ed90  cron
  682     1   682     0  Ss      select  0xfffff80026f078c0  sshd
  495     1   495     0  Ss      select  0xfffff80026f07940  syslogd
  424     1   424     0  Ss      select  0xfffff80026f07d40  devd
  423     1   423    65  Ss      select  0xfffff80026f07ac0  dhclient
  338     1   338     0  Ss      select  0xfffff80026f07b40  dhclient
  335     1   335     0  Ss      select  0xfffff80004a6a140  dhclient
   23     0     0     0  DL      vlruwt  0xfffff800049c1000  [vnlru]
   22     0     0     0  DL      syncer  0xffffffff8261c138  [syncer]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100070                   D       qsleep  0xffffffff8261b200  [bufdaemon]
100071                   D       -       0xffffffff8200ac80  [bufspacedaemon-0]
100088                   D       sdflush 0xfffff800041818e8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff826426c8  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100068                   D       psleep  0xffffffff82636b38  [dom0]
100076                   D       launds  0xffffffff82636b44  [laundry: dom0]
100077                   D       umarcl  0xffffffff814df150  [uma]
   18     0     0     0  DL      -       0xffffffff82363278  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff82e15818  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff82b5a390  [pf purge]
   15     0     0     0  DL      -       0xffffffff8261a7dc  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8261a7dc  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8261a7dc  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8261a7dc  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100034                   D       -       0xffffffff8223afc0  [doneq0]
100067                   D       -       0xffffffff8223ae90  [scanner]
    5     0     0     0  DL      crypto_ 0xfffff80004189c90  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff80004189c30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff82634030  [crypto]
   14     0     0     0  DL      seqstat 0xfffff80004301488  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100025                   D       -       0xffffffff8250e620  [g_event]
100026                   D       -       0xffffffff8250e628  [g_up]
100027                   D       -       0xffffffff8250e630  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100018                   D       -       0xfffff800042b3300  [thr_0]
100019                   D       -       0xfffff800042b3380  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100011                   I                                   [swi5: fast taskq]
100014                   I                                   [swi6: task queue]
100015                   I                                   [swi6: Giant taskq]
100020                   I                                   [swi1: netisr 0]
100021                   I                                   [swi4: clock (0)]
100022                   I                                   [swi4: clock (1)]
100023                   I                                   [swi3: vm]
100035                   I                                   [irq24: virtio_pci0]
100036                   I                                   [irq25: virtio_pci0]
100037                   I                                   [irq26: virtio_pci0]
100038                   I                                   [irq27: virtio_pci0]
100039                   I                                   [irq28: virtio_pci1]
100040                   I                                   [irq29: virtio_pci1]
100041                   I                                   [irq30: virtio_pci1]
100042                   I                                   [irq31: virtio_pci1]
100043                   I                                   [irq32: virtio_pci1]
100048                   I                                   [irq10: virtio_pci2]
100050                   I                                   [irq1: atkbd0]
100051                   I                                   [irq12: psm0]
100052                   I                                   [swi0: uart uart++]
100060                   I                                   [swi1: pf send]
100074                   I                                   [swi1: hpts]
100075                   I                                   [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff80004291528  [init]
   10     0     0     0  DL      audit_w 0xffffffff82634550  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8250ebb0  [swapper]
100005                   D       -       0xfffff800042b8e00  [if_io_tqg_0]
100006                   D       -       0xfffff800042b8d00  [if_io_tqg_1]
100007                   D       -       0xfffff800042b8c00  [if_config_tqg_0]
100008                   D       -       0xfffff800042b8b00  [softirq_0]
100009                   D       -       0xfffff800042b8a00  [softirq_1]
100010                   D       -       0xfffff80004183200  [in6m_free taskq]
100012                   D       -       0xfffff800042bcd00  [kqueue_ctx taskq]
100013                   D       -       0xfffff800042bcb00  [inm_free taskq]
100016                   D       -       0xfffff800042bc500  [aiod_kick taskq]
100017                   D       -       0xfffff800042bc300  [thread taskq]
100024                   D       -       0xfffff800042cda00  [firmware taskq]
100029                   D       -       0xfffff800042cd300  [crypto_0]
100030                   D       -       0xfffff800042cd300  [crypto_1]
100044                   D       -       0xfffff8000433f300  [vtnet0 rxq 0]
100045                   D       -       0xfffff8000433f200  [vtnet0 txq 0]
100046                   D       -       0xfffff8000433f100  [vtnet0 rxq 1]
100047                   D       -       0xfffff8000433f000  [vtnet0 txq 1]
100049                   D       vtbslp  0xfffff80004483880  [virtio_balloon]
100053                   D       -       0xfffff800046afe00  [mca taskq]
100056                   D       -       0xffffffff81d0b200  [deadlkres]
100062                   D       -       0xfffff80004990d00  [acpi_task_0]
100063                   D       -       0xfffff80004990d00  [acpi_task_1]
100064                   D       -       0xfffff80004990d00  [acpi_task_2]
100066                   D       -       0xfffff8000433fb00  [CAM taskq]
db> show all locks
Process 765 (syz-executor.1) thread 0xfffffe0023b49800 (100083)
exclusive sx filedesc structure (filedesc structure) r = 0 (0xfffffe00257d2940) locked @ /syzkaller/managers/main/kernel/sys/kern/kern_descrip.c:901
Process 762 (syz-fuzzer) thread 0xfffffe0025821e00 (100109)
exclusive lockmgr bufwait (bufwait) r = 0 (0xfffffe0003eaa0c0) locked @ /syzkaller/managers/main/kernel/sys/ufs/ffs/ffs_vnops.c:310
exclusive lockmgr ufs (ufs) r = 0 (0xfffff8003f101dc8) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_lookup.c:1047
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4214         4339K         4239
          tcp_hpts            5         3201K            5
             vtbuf           24         1968K           46
         sysctloid        29217         1704K        29281
              kobj          336         1344K          496
            newblk          573         1167K          621
          vfscache            3         1025K            3
               pcb           22          537K           71
          inodedep           28          523K           98
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          107          218K          825
            acpica         1674          184K        52503
         vnet_data            1          168K            1
           tidhash            3          141K            3
           pagedep           13          131K           77
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          101          101K          110
            linker          254           97K          282
               bus          979           79K         3035
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          507           64K          507
          filedesc            8           57K            9
              temp           18           33K         1506
         hostcache            1           32K            1
               shm            1           32K            1
           kdtrace          161           32K         1597
               msg            4           30K            4
            DEVFS3          120           30K          130
              umtx          234           30K          234
        gtaskqueue           18           26K           18
              vmem            3           22K            4
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
               BPF           10           18K           10
         ufs_mount            5           17K            6
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
            bus-sc           30           14K         1416
            KTRACE          100           13K          100
            ifaddr           32           12K           32
              kenv           92           12K           92
      eventhandler          129           11K          129
              GEOM           60           10K          489
              rman           82           10K          423
         bmsafemap            5            9K           54
              UART           12            9K           12
           devstat            4            9K            4
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          233            8K          291
           CAM DEV            3            6K          510
            kqueue           51            6K          771
              cred           21            6K          194
            sglist            5            6K            5
         CAM queue            5            6K         1528
         taskqueue           48            6K           48
            plimit           19            5K          313
       ufs_dirhash           24            5K           24
             ifnet            3            5K            3
                vt           11            5K           11
               UMA          254            5K          254
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          routetbl           15            4K           15
             hhook           13            4K           13
       ether_multi           40            4K           50
           lltable           11            4K           11
           pwddesc           49            4K          767
          pf_ifnet            5            3K            6
         in6_multi           25            3K           25
          terminal           11            3K           11
           acpisem           22            3K           22
           session           21            3K           30
              pgrp           21            3K           30
         proc-args           42            3K          462
           uidinfo            3            3K            7
        local_apic            1            2K            1
           io_apic            1            2K            1
          indirdep            8            2K            8
         ipsec-saq            2            2K            2
             selfd           27            2K         9588
           CAM XPT           22            2K          543
             lockf           15            2K           22
            Unitno           25            2K           37
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
            DEVFSP           19            2K           19
               msi            9            2K            9
             clone            9            2K            9
          kcovinfo           17            2K           17
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
       vnodemarker            2            1K            8
      NFSD session            1            1K            1
        CAM periph            4            1K          271
            diradd            7            1K           48
            select            7            1K           26
             ipsec            3            1K            3
             nhops            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
          sctp_ifa            5            1K            7
            ip6ndp            4            1K            5
 encap_export_host           12            1K           12
            crypto            3            1K            3
          in_multi            2            1K            4
              pfil            4            1K            4
           CAM SIM            2            1K            2
              cdev            2            1K            2
             mkdir            3            1K           24
    chacha20random            1            1K            1
               osd            3            1K            9
          sctp_ifn            2            1K            7
         newdirblk            2            1K           12
            dirrem            1            1K           28
               mld            2            1K            2
              igmp            2            1K            2
            vnodes            1            1K            1
              ktls            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            feeder            7            1K            7
       inpcbpolicy            7            1K          125
        loginclass            3            1K            6
            prison            6            1K            6
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
            apmdev            1            1K            1
          atkbddev            2            1K            2
          CAM path            4            1K         1034
          freework            1            1K           26
           tcpfunc            2            1K            2
          procdesc            1            1K            6
          pmchooks            1            1K            1
            soname            4            1K         3020
          filecaps            4            1K           63
               tun            3            1K            3
          nexusdev            5            1K            5
          sctp_vrf            1            1K            1
           entropy            2            1K           35
              vnet            1            1K            1
               pmc            1            1K            1
          acpiintr            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
        sctp_mcore            0            0K            0
        sctp_socko            0            0K            0
         sctp_iter            0            0K            3
         sctp_mvrf            0            0K            0
         sctp_timw            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_athm            0            0K            0
         sctp_atky            0            0K            0
         sctp_atcl            0            0K            0
         sctp_a_it            0            0K            3
         sctp_aadr            0            0K            0
         sctp_stro            0            0K            0
         sctp_stri            0            0K            0
          sctp_map            0            0K            0
          pf_table            0            0K            0
           pf_rule            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
           pf_temp            0            0K            0
            nvlist            0            0K            0
          SCSI ENC            0            0K            0
           SCSI sa            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
         scsi_pass            0            0K            0
         ciss_data            0            0K            0
            pvscsi            0            0K            0
           ath_hal            0            0K            0
            athdev            0            0K            0
           ata_pci            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
              iavf            0            0K            0
               ixl            0            0K            0
               amr            0            0K            0
           scsi_da            0            0K           69
            ata_da            0            0K            0
           scsi_ch            0            0K            0
           scsi_cd            0            0K            0
            USBdev            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
             axgbe            0            0K            0
       fpukern_ctx            0            0K            0
               USB            0            0K            0
          xen_intr            0            0K            0
       AHCI driver            0            0K            0
               agp            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
           nvme_da            0            0K            0
           acpipwr            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
            twsbuf            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
      twe_commands            0            0K            0
      twa_commands            0            0K            0
       tcp_log_dev            0            0K            0
     vm_fictitious            0            0K            0
      midi buffers            0            0K            0
             mixer            0            0K            0
              ac97            0            0K            0
             hdacc            0            0K            0
              hdac            0            0K            0
              hdaa            0            0K            0
         acpi_perf            0            0K            0
         acpicmbat            0            0K            0
       SIIS driver            0            0K            0
           UMAHash            0            0K            0
           CAM CCB            0            0K         2019
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K            8
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K            2
           jsegdep            0            0K            0
              jseg            0            0K            0
         jfreefrag            0            0K            0
          jfreeblk            0            0K            0
           jnewblk            0            0K            0
            jmvref            0            0K            0
           jremref            0            0K            0
           jaddref            0            0K            0
           freedep            0            0K            0
          freefile            0            0K           25
          freeblks            0            0K           25
          freefrag            0            0K            5
        allocindir            0            0K            0
       allocdirect            0            0K            0
          ufs_trim            0            0K            0
           mactemp            0            0K            0
     audit_trigger            0            0K            0
 audit_pipe_presel            0            0K            0
     audit_pipeent            0            0K            0
        audit_pipe            0            0K            0
      audit_evname            0            0K            0
         audit_bsm            0            0K            0
      audit_gidset            0            0K            0
        audit_text            0            0K            0
        audit_path            0            0K            0
        audit_data            0            0K            0
        audit_cred            0            0K            0
             xform            0            0K            0
               NLM            0            0K            0
    ipsec-spdcache            0            0K            0
         ipsec-reg            0            0K            0
        ipsec-misc            0            0K            0
      ipsecrequest            0            0K            0
            ip6opt            0            0K            3
       ip6_msource            0            0K            0
      ip6_moptions            0            0K            0
       in6_mfilter            0            0K            0
             frag6            0            0K            0
            tcplog            0            0K            0
               LRO            0            0K            0
      newreno data            0            0K            0
        ip_msource            0            0K            0
       ip_moptions            0            0K            0
        in_mfilter            0            0K            0
              ipid            0            0K            0
         80211scan            0            0K            0
      80211ratectl            0            0K            0
        80211power            0            0K            0
       80211nodeie            0            0K            0
         80211node            0            0K            0
      80211mesh_gt            0            0K            0
      80211mesh_rt            0            0K            0
         80211perr            0            0K            0
         80211prep            0            0K            0
         80211preq            0            0K            0
          80211dfs            0            0K            0
       80211crypto            0            0K            0
          80211vap            0            0K            0
             iflib            0            0K            0
              vlan            0            0K            0
               gif            0            0K            0
           ifdescr            0            0K            0
              zlib            0            0K            0
           fadvise            0            0K            0
           VN POLL            0            0K            0
            statfs            0            0K          188
     namei_tracker            0            0K            0
       export_host            0            0K            0
        cl_savebuf            0            0K            2
               PUC            0            0K            0
          ppbusdev            0            0K            0
agtiapi_MemAlloc malloc            0            0K            0
    osti_cacheable            0            0K            0
          tempbuff            0            0K            0
          tempbuff            0            0K            0
ag_tgt_map_t malloc            0            0K            0
ag_slr_map_t malloc            0            0K            0
lDevFlags * malloc            0            0K            0
tiDeviceHandle_t * malloc            0            0K            0
ag_portal_data_t malloc            0            0K            0
ag_device_t malloc            0            0K            0
     STLock malloc            0            0K            0
          CCB List            0            0K            0
            sr_iov            0            0K            0
               OCS            0            0K            0
               OCS            0            0K            0
              nvme            0            0K            0
               nvd            0            0K            0
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              aios            0            0K            0
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               acl            0            0K            0
        MVS driver            0            0K            0
          mbuf_tag            0            0K           27
              accf            0            0K            0
               pts            0            0K            0
               iov            0            0K        12945
          ioctlops            0            0K           84
           Witness            0            0K            0
             stack            0            0K            0
     CAM ccb queue            0            0K            0
          mrsasbuf            0            0K            0
          mpt_user            0            0K            0
              sbuf            0            0K          288
          mps_user            0            0K            0
          firmware            0            0K            0
        compressor            0            0K            0
            MPSSAS            0            0K            0
              SWAP            0            0K            0
               mps            0            0K            0
          mpr_user            0            0K            0
         sysctltmp            0            0K          576
            sysctl            0            0K            1
            MPRSAS            0            0K            0
              ekcd            0            0K            0
            dumper            0            0K            0
          sendfile            0            0K            0
              rctl            0            0K            0
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           md_disk            0            0K            0
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               LED            0            0K            0
             cache            0            0K            0
      prison_racct            0            0K            0
       Fail Points            0            0K            0
             sigio            0            0K            1
filedesc_to_leader            0            0K            0
               pwd            0            0K            0
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                ix            0            0K            0
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            iirbuf            0            0K            0
       aacraid_buf            0            0K            0
            aaccam            0            0K            0
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       isofs_mount            0            0K            0
     tr_raid5_data            0            0K            0
    tr_raid1e_data            0            0K            0
     tr_raid1_data            0            0K            0
     tr_raid0_data            0            0K            0
    tr_concat_data            0            0K            0
       md_sii_data            0            0K            0
   md_promise_data            0            0K            0
    md_nvidia_data            0            0K            0
   md_jmicron_data            0            0K            0
     md_intel_data            0            0K            0
       md_ddf_data            0            0K            0
         raid_data            0            0K           72
     geom_flashmap            0            0K            0
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        tmpfs name            0            0K            0
       tmpfs mount            0            0K            0
           NFS FHA            0            0K            0
         newnfsmnt            0            0K            0
  newnfsclient_req            0            0K            0
   NFSCL layrecall            0            0K            0
     NFSCL session            0            0K            0
     NFSCL sockreq            0            0K            0
     NFSCL devinfo            0            0K            0
     NFSCL flayout            0            0K            0
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     NFSD rollback            0            0K            0
NFSCL diroffdiroff            0            0K            0
       NEWdirectio            0            0K            0
        NEWNFSnode            0            0K            0
         NFSCL lck            0            0K            0
      NFSCL lckown            0            0K            0
      NFSCL client            0            0K            0
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     NFSD usrgroup            0            0K            0
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            DEVFS4            0            0K            0
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               xnb            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
      mbuf_cluster   2048    9488       2        9488       0     254   19435520        0
       mbuf_packet    256    8192    1168       26119       0     254    2396160        0
          BUF TRIE    144     182   13286         693       0      62    1939392        0
        malloc-384    384    4138      12        4140       0      30    1593600        0
       malloc-4096   4096     336       1         496       0       2    1380352        0
        malloc-128    128   10360      56       10652       0     126    1333248        0
              pbuf    832       0     969           0       0       2     806208        0
       UMA Slabs 0    112    5541       0        5541       0     126     620592        0
         FFS inode   1128     492      12         517       0       8     568512        0
        RADIX NODE    144    2932      89       20283       0      62     435024        0
      malloc-65536  65536       3       2          11       0       1     327680        0
             VNODE    488     523      37         550       0      30     273280        0
      malloc-65536  65536       4       0           4       0       1     262144        0
         VM OBJECT    264     942       3       12174       0      30     249480        0
        256 Bucket   2048     101      17        6080       0       8     241664        0
       malloc-4096   4096      52       3        1219       0       2     225280        0
            DEVCTL   1024       0     208         109       0       0     212992        0
            THREAD   1792     116       1         116       0       8     209664        0
         malloc-16     16   12218     282       12279       0     254     200000        0
         malloc-64     64    2751      84        2774       0     254     181440        0
         UMA Zones    768     226       3         226       0      16     175872        0
        malloc-256    256     605      25         775       0      62     161280        0
         malloc-32     32    4775     139        4941       0     254     157248        0
        malloc-128    128    1126      83       24452       0     126     154752        0
              mbuf    256     385     170        2004       0     254     142080        0
      malloc-65536  65536       0       2          45       0       1     131072        0
      malloc-65536  65536       0       2         110       0       1     131072        0
      malloc-65536  65536       2       0           2       0       1     131072        0
       FFS2 dinode    256     492       3         517       0      62     126720        0
       malloc-1024   1024     113       3         123       0      16     118784        0
          ksiginfo    112      38    1006          74       0     126     116928        0
         MAP ENTRY     96     944     274       36141       0     126     116928        0
       S VFS Cache    104     979      74        1019       0     126     109512        0
         vmem btag     56    1705      83        1705       0     254     100128        0
       malloc-2048   2048       1      47        2020       0       8      98304        0
       malloc-4096   4096      23       0          34       0       2      94208        0
           VMSPACE   2544      26       7         745       0       4      83952        0
          UMA Kegs    384     212       1         212       0      30      81792        0
             g_bio    408       0     190        5727       0      30      77520        0
              PROC   1320      48       9         766       0       8      75240        0
       malloc-8192   8192       6       3          34       0       1      73728        0
       malloc-2048   2048       9      27         516       0       8      73728        0
         filedesc0   1072      49      14         767       0       8      67536        0
      malloc-32768  32768       2       0           2       0       1      65536        0
      malloc-32768  32768       0       2         112       0       1      65536        0
      malloc-16384  16384       4       0           4       0       1      65536        0
        128 Bucket   1024      35      24        1674       0      16      60416        0
        malloc-256    256     165      45        1154       0      62      53760        0
      malloc-16384  16384       3       0           3       0       1      49152        0
        malloc-128    128     308      64         438       0     126      47616        0
         32 Bucket    256      49     131         824       0      62      46080        0
         malloc-64     64     546     147       11244       0     254      44352        0
         malloc-64     64     523     170        1604       0     254      44352        0
            clpbuf    832       0      48         143       0      16      39936        0
        malloc-256    256     136      14         431       0      62      38400        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       2      34       11368       0      16      36864        0
        malloc-384    384      78      12         369       0      30      34560        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       2       0           5       0       1      32768        0
      malloc-16384  16384       0       2         136       0       1      32768        0
       malloc-8192   8192       2       2          91       0       1      32768        0
           pcpu-64     64     452      60         452       0     254      32768        0
            pcpu-8      8    3859     237        3863       0     254      32768        0
        malloc-384    384      27      53          97       0      30      30720        0
        malloc-256    256      32      88         698       0      62      30720        0
         64 Bucket    512      46      10         574       0      30      28672        0
   mbuf_jumbo_page   4096       0       6           8       0     254      24576        0
       malloc-8192   8192       2       1           4       0       1      24576        0
       malloc-8192   8192       3       0           3       0       1      24576        0
            ttyinq    160     135      15         300       0      62      24000        0
          8 Bucket     80      49     251        8469       0     126      24000        0
        malloc-128    128     129      57         179       0     126      23808        0
        malloc-128    128     142      44         495       0     126      23808        0
             tcpcb   1048       4      18          10       0     254      23056        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-384    384      53       7          53       0      30      23040        0
            socket    944      15       9        1172       0     254      22656        0
       malloc-4096   4096       4       1           7       0       2      20480        0
       malloc-4096   4096       4       1           6       0       2      20480        0
       malloc-2048   2048       5       5         261       0       8      20480        0
       malloc-1024   1024      18       2          18       0      16      20480        0
         malloc-64     64     266      49       12909       0     254      20160        0
        malloc-128    128      98      57         778       0     126      19840        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-256    256      57      18          58       0      62      19200        0
        malloc-256    256      59      16         473       0      62      19200        0
              pipe    744      14      11         282       0      16      18600        0
         TURNSTILE    136     118       8         118       0      62      17136        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-1024   1024      14       2          14       0      16      16384        0
         malloc-64     64     202      50        1696       0     254      16128        0
         malloc-32     32     277     227         402       0     254      16128        0
          4 Bucket     48      13     323        4666       0     254      16128        0
          2 Bucket     32      50     454        9417       0     254      16128        0
             Files     80     109      91        6166       0     126      16000        0
        malloc-256    256      38      22         413       0      62      15360        0
        SLEEPQUEUE     88     118      42         118       0     126      14080        0
       malloc-4096   4096       1       2         192       0       2      12288        0
       malloc-2048   2048       3       3          15       0       8      12288        0
       malloc-2048   2048       3       3           5       0       8      12288        0
       malloc-2048   2048       3       3         194       0       8      12288        0
       malloc-1024   1024       2      10          42       0      16      12288        0
       malloc-1024   1024       6       6         851       0      16      12288        0
        malloc-512    512       1      23         119       0      30      12288        0
         udp_inpcb    488       2      22         111       0     254      11712        0
        malloc-256    256      12      33          42       0      62      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       1       1           3       0       2       8192        0
       malloc-2048   2048       1       3          33       0       8       8192        0
       malloc-2048   2048       3       1           3       0       8       8192        0
       malloc-1024   1024       3       5           3       0      16       8192        0
       malloc-1024   1024       4       4         141       0      16       8192        0
       malloc-1024   1024       3       5          17       0      16       8192        0
        malloc-512    512       4      12           4       0      30       8192        0
        malloc-512    512       2      14         510       0      30       8192        0
        malloc-512    512       3      13          44       0      30       8192        0
        malloc-512    512       8       8           8       0      30       8192        0
           rtentry    176      14      32          18       0      62       8096        0
          rl_entry     40      31     171          31       0     254       8080        0
        sctp_laddr     48       0     168           4       0     254       8064        0
             udpcb     32       2     250         111       0     254       8064        0
               PWD     32      12     240          98       0     254       8064        0
         malloc-64     64      28      98          41       0     254       8064        0
         malloc-64     64       3     123          33       0     254       8064        0
         malloc-64     64      28      98          48       0     254       8064        0
         malloc-32     32     100     152         138       0     254       8064        0
         malloc-32     32      46     206        1889       0     254       8064        0
         malloc-32     32      57     195         799       0     254       8064        0
         malloc-32     32      30     222        2654       0     254       8064        0
         16 Bucket    144      35      21         196       0      62       8064        0
      vtnet_tx_hdr     24       0     334        1061       0     254       8016        0
             KNOTE    160      20      30         186       0      62       8000        0
         malloc-16     16      16     484          46       0     254       8000        0
         malloc-16     16      28     472         198       0     254       8000        0
         malloc-16     16      39     461         495       0     254       8000        0
         malloc-16     16     183     317        1238       0     254       8000        0
         malloc-16     16       8     492           8       0     254       8000        0
         malloc-16     16     252     248         255       0     254       8000        0
         malloc-16     16      27     473       23643       0     254       8000        0
        malloc-128    128      15      47          70       0     126       7936        0
        malloc-128    128      44      18        2940       0     126       7936        0
         tcp_inpcb    488       4      12          10       0     254       7808        0
              kenv    258       3      27         998       0      30       7740        0
     routing nhops    256      11      19          18       0      62       7680        0
             unpcb    256       7      23        1030       0     254       7680        0
        malloc-384    384       4      16           5       0      30       7680        0
        malloc-384    384       9      11           9       0      30       7680        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       7      55           7       0     126       6448        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
        malloc-512    512       1       7           2       0      30       4096        0
        malloc-512    512       2       6           8       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
         hostcache     96       1      41           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
         malloc-32     32       8     118          29       0     254       4032        0
         malloc-32     32       1     125          20       0     254       4032        0
             ripcb    488       1       7           4       0     254       3904        0
       UMA Slabs 1    176       7      15           7       0      62       3872        0
        malloc-384    384       1       9           1       0      30       3840        0
        malloc-384    384       1       9           1       0      30       3840        0
        KMAP ENTRY     96      12      27          12       0       0       3744        0
              vmem   1856       1       1           1       0       8       3712        0
           SMR CPU     32       2      29           2       0     254        992        0
        SMR SHARED     24       2      29           2       0     254        744        0
       FFS1 dinode    128       0       0           0       0     126          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
sctp_stream_msg_out    112       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     254          0        0
        sctp_chunk    152       0       0           0       0     254          0        0
        sctp_raddr    736       0       0           0       0     254          0        0
         sctp_asoc   2288       0       0           0       0     254          0        0
           sctp_ep   1280       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    296       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
       tcp_bbr_pcb    832       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
     udplite_inpcb    488       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
           tcp_log    416       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
             tcptw     88       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
            itimer    352       0       0           0       0      30          0        0
            AIOLIO    272       0       0           0       0      30          0        0
             AIOCB    744       0       0           0       0      16          0        0
              AIOP     32       0       0           0       0     254          0        0
               AIO    208       0       0           0       0      62          0        0
        TMPFS node    224       0       0           0       0      62          0        0
           NCLNODE    592       0       0           0       0      16          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
    crypto_session     72       0       0           0       0     126          0        0
           cryptop    280       0       0           0       0      30          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
         domainset     40       0       0           0       0     254          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf    832       0       0           0       0      62          0        0
            mdpbuf    832       0       0           0       0       4          0        0
           nfspbuf    832       0       0           0       0      16          0        0
            swwbuf    832       0       0           0       0       8          0        0
            swrbuf    832       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
        malloc-512    512       0       0           0       0      30          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (5591):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2020/11/23 06:34 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 06:29 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 06:25 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 06:20 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 06:16 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 06:11 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 06:07 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 06:03 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 06:00 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 05:54 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 05:46 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 05:42 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 05:37 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 05:31 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 05:27 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 05:22 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 05:19 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 05:13 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 05:10 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 05:04 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 04:59 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 04:55 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 04:50 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 04:47 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 04:41 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 04:32 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-main 2020/11/23 04:27 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 05:57 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 05:51 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 05:48 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 05:39 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 05:33 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 05:25 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 05:16 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 05:08 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 05:01 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 04:53 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 04:44 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 04:38 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 04:35 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 04:30 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/23 04:23 freebsd 1fa8aae03df7 0d27f508 console log report
ci-freebsd-i386 2020/11/22 16:32 freebsd 1fa8aae03df7 0d27f508 console log report
* Struck through repros no longer work on HEAD.