syzbot


panic: sctp_timer_start of type 10: inp = ADDR, stcb->sctp_ep ADDR

Status: fixed on 2020/05/11 05:01
Reported-by: syzbot+82d39d14f2f765e38db0@syzkaller.appspotmail.com
Fix commit: 83ed508055c0 Ensure that the SCTP iterator runs with an stcb and inp, which belong to each other.
First crash: 1011d, last: 1011d

Sample crash report:
panic: sctp_timer_start of type 10: inp = 0xfffffe0025913000, stcb->sctp_ep 0xfffff80013c04500
cpuid = 1
time = 111
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe001a1f9730
vpanic() at vpanic+0x1c7/frame 0xfffffe001a1f9790
panic() at panic+0x43/frame 0xfffffe001a1f97f0
sctp_timer_start() at sctp_timer_start+0x116d/frame 0xfffffe001a1f9850
sctp_med_chunk_output() at sctp_med_chunk_output+0x175e/frame 0xfffffe001a1fa1d0
sctp_chunk_output() at sctp_chunk_output+0x1c45/frame 0xfffffe001a1fab20
sctp_iterator_worker() at sctp_iterator_worker+0x6cf/frame 0xfffffe001a1fab90
sctp_iterator_thread() at sctp_iterator_thread+0x5e/frame 0xfffffe001a1fabb0
fork_exit() at fork_exit+0xb3/frame 0xfffffe001a1fabf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe001a1fabf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 16 tid 100058 ]
Stopped at      kdb_enter+0x67: movq    $0,0x14a9186(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b  ll+0x1a
es                        0x3b  ll+0x1a
fs                        0x13
gs                        0x1b
ss                        0x28  ll+0x7
rax                       0x12
rcx         0xffffffff810b9430  vprintf+0x140
rdx                        0x1
rbx                          0
rsp         0xfffffe001a1f9710
rbp         0xfffffe001a1f9730
rsi                          0
rdi         0xffffffff810b9466  vprintf+0x176
r8                           0
r9                  0xffffffff
r10         0xaa0214ac08000500
r11                          0
r12         0xffffffff82068ec0  ddb_dbbe
r13                          0
r14         0xffffffff81944029
r15         0xffffffff81944029
rip         0xffffffff810ae6e7  kdb_enter+0x67
rflags                    0x82  ll+0x61
kdb_enter+0x67: movq    $0,0x14a9186(%rip)
db> show proc
Process 16 (sctp_iterator) at 0xfffff80003ae2a40:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff8250b710
 ABI: null
 reaper: 0xffffffff8250b710 reapsubtree: 16
 sigparent: 20
 vmspace: 0xffffffff8250c350
   (map 0xffffffff8250c350)
   (map.pmap 0xffffffff8250c410)
   (pmap 0xffffffff8250c470)
 threads: 1
100058                   Run     CPU 1                       [sctp_iterator]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 4050  2932  2932     0  R       (threaded)                  syz-executor.0
100528                   RunQ                                syz-executor.0
100231                   RunQ                                syz-executor.0
 4049   770   768     0  R       CPU 0                       syz-executor.1
 4048  4045  4045     0  R                                   ifconfig
 4045   770  4045     0  Ss      wait    0xfffff800139a2a40  syz-executor.2
 4037   770  4037     0  Rs                                  syz-executor.3
 3606  3599  3606     0  Ss      select  0xfffff80013a53340  dhclient
 3602     1  3602     0  Ss      select  0xfffff80013a57540  dhclient
 3599  3591   424    65  S       select  0xfffff80013a57240  dhclient
 3591   424   424     0  S       wait    0xfffff800139a1a40  sh
 2932   770  2932     0  Rs                                  syz-executor.0
  770   768   768     0  R       (threaded)                  syz-fuzzer
100103                   S       uwait   0xfffff80003a34c00  syz-fuzzer
100104                   RunQ                                syz-fuzzer
100105                   S       uwait   0xfffff8000380e280  syz-fuzzer
100106                   S       uwait   0xfffff8000380cf00  syz-fuzzer
100107                   S       uwait   0xfffff80003a34d00  syz-fuzzer
100108                   S       uwait   0xfffff80003a34e00  syz-fuzzer
100109                   S       uwait   0xfffff80003a34f00  syz-fuzzer
100110                   S       uwait   0xfffff80003a36480  syz-fuzzer
100111                   S       uwait   0xfffff8000380ee00  syz-fuzzer
100113                   S       uwait   0xfffff80003a33200  syz-fuzzer
100115                   S       kqread  0xfffff80003a38a00  syz-fuzzer
  768   766   768     0  Ss      pause   0xfffff80003d2eae8  csh
  766   682   766     0  Ss      select  0xfffff8000380eb40  sshd
  748     1   748     0  Ss+     ttyin   0xfffff80003805cb0  getty
  747     1   747     0  Ss+     ttyin   0xfffff80003b068b0  getty
  746     1   746     0  Ss+     ttyin   0xfffff80003b06cb0  getty
  745     1   745     0  Ss+     ttyin   0xfffff80003b050b0  getty
  744     1   744     0  Ss+     ttyin   0xfffff80003b054b0  getty
  743     1   743     0  Ss+     ttyin   0xfffff80003b058b0  getty
  742     1   742     0  Ss+     ttyin   0xfffff80003b05cb0  getty
  741     1   741     0  Ss+     ttyin   0xfffff80003b080b0  getty
  740     1   740     0  Ss+     ttyin   0xfffff80003b084b0  getty
  686     1   686     0  Ss      nanslp  0xffffffff8252c1e0  cron
  682     1   682     0  Ss      select  0xfffff80003a33b40  sshd
  495     1   495     0  Rs                                  syslogd
  424     1   424     0  Ss      wait    0xfffff80003cbb520  devd
  423     1   423    65  Ss      select  0xfffff80003a33040  dhclient
  338     1   338     0  Ss      select  0xfffff80003a33a40  dhclient
  335     1   335     0  Ss      select  0xfffff8000380b2c0  dhclient
   23     0     0     0  DL      syncer  0xffffffff82618118  [syncer]
   22     0     0     0  DL      vlruwt  0xfffff800033c6a40  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100069                   D       qsleep  0xffffffff82617438  [bufdaemon]
100076                   D       -       0xffffffff8200aa00  [bufspacedaemon-0]
100086                   D       sdflush 0xfffff80003806ce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff8263e308  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100067                   D       psleep  0xffffffff826328d8  [dom0]
100074                   D       launds  0xffffffff826328e4  [laundry: dom0]
100075                   D       umarcl  0xffffffff81545fc0  [uma]
   18     0     0     0  DL      -       0xffffffff8235fe20  [rand_harvestq]
   17     0     0     0  DL      pftm    0xffffffff82b543a0  [pf purge]
   16     0     0     0  RL      CPU 1                       [sctp_iterator]
   15     0     0     0  DL      -       0xffffffff82616a2c  [soaiod4]
    9     0     0     0  DL      -       0xffffffff82616a2c  [soaiod3]
    8     0     0     0  DL      -       0xffffffff82616a2c  [soaiod2]
    7     0     0     0  DL      -       0xffffffff82616a2c  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100033                   D       -       0xffffffff82237b40  [doneq0]
100066                   D       -       0xffffffff82237a10  [scanner]
    5     0     0     0  DL      crypto_ 0xfffff80003202d90  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff80003202d30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff826300c0  [crypto]
   14     0     0     0  DL      seqstat 0xfffff80003351488  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100024                   D       -       0xffffffff8250b180  [g_event]
100025                   D       -       0xffffffff8250b188  [g_up]
100026                   D       -       0xffffffff8250b190  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100017                   D       -       0xfffff800032fac80  [thr_0]
100018                   D       -       0xfffff800032facc0  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100010                   I                                   [swi6: Giant taskq]
100013                   I                                   [swi5: fast taskq]
100016                   I                                   [swi6: task queue]
100019                   I                                   [swi3: vm]
100020                   I                                   [swi4: clock (0)]
100021                   I                                   [swi4: clock (1)]
100022                   I                                   [swi1: netisr 0]
100034                   I                                   [irq24: virtio_pci0]
100035                   I                                   [irq25: virtio_pci0]
100036                   I                                   [irq26: virtio_pci0]
100037                   I                                   [irq27: virtio_pci0]
100038                   I                                   [irq28: virtio_pci1]
100039                   I                                   [irq29: virtio_pci1]
100040                   I                                   [irq30: virtio_pci1]
100041                   I                                   [irq31: virtio_pci1]
100042                   I                                   [irq32: virtio_pci1]
100047                   I                                   [irq10: virtio_pci2]
100049                   I                                   [irq1: atkbd0]
100050                   I                                   [irq12: psm0]
100051                   I                                   [swi0: uart uart++]
100060                   I                                   [swi1: pf send]
100072                   I                                   [swi1: hpts]
100073                   I                                   [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff80003304000  [init]
   10     0     0     0  DL      audit_w 0xffffffff82630598  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8250b710  [swapper]
100005                   D       -       0xfffff80003325000  [if_config_tqg_0]
100006                   D       -       0xfffff80003326e00  [softirq_0]
100007                   D       -       0xfffff80003326d00  [softirq_1]
100008                   D       -       0xfffff80003326c00  [if_io_tqg_0]
100009                   D       -       0xfffff80003326b00  [if_io_tqg_1]
100011                   D       -       0xfffff80003333600  [in6m_free taskq]
100012                   D       -       0xfffff80003333500  [thread taskq]
100014                   D       -       0xfffff80003333200  [kqueue_ctx taskq]
100015                   D       -       0xfffff80003333100  [aiod_kick taskq]
100023                   D       -       0xfffff80003334800  [firmware taskq]
100028                   D       -       0xfffff80003331c00  [crypto_0]
100029                   D       -       0xfffff80003331c00  [crypto_1]
100043                   D       -       0xfffff80003562c00  [vtnet0 rxq 0]
100044                   D       -       0xfffff80003562b00  [vtnet0 txq 0]
100045                   D       -       0xfffff80003562a00  [vtnet0 rxq 1]
100046                   D       -       0xfffff80003562900  [vtnet0 txq 1]
100048                   D       vtbslp  0xfffff80003522680  [virtio_balloon]
100052                   D       -       0xfffff80003335700  [mca taskq]
100057                   D       -       0xffffffff81ce7791  [deadlkres]
100062                   D       -       0xfffff80003331800  [acpi_task_0]
100063                   D       -       0xfffff80003331800  [acpi_task_1]
100064                   D       -       0xfffff80003331800  [acpi_task_2]
100065                   D       -       0xfffff80003331500  [CAM taskq]
db> show all locks
Process 4049 (syz-executor.1) thread 0xfffffe0023bd2000 (100083)
exclusive rw vm object (vm object) r = 0 (0xfffff8001e4f4000) locked @ /syzkaller/managers/main/kernel/sys/kern/kern_kcov.c:383
Process 4048 (ifconfig) thread 0xfffffe0025792a00 (100114)
exclusive sx in_control (in_control) r = 0 (0xffffffff8261a3e0) locked @ /syzkaller/managers/main/kernel/sys/netinet/in.c:249
Process 495 (syslogd) thread 0xfffffe0023bd3500 (100080)
exclusive lockmgr bufwait (bufwait) r = 0 (0xfffffe0003e0fac0) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_bio.c:3878
exclusive lockmgr ufs (ufs) r = 0 (0xfffff80013351250) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_syscalls.c:3431
Process 16 (sctp_iterator) thread 0xfffffe0004af6800 (100058)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe00259138b0) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctputil.c:1518
exclusive sleep mutex sctp-inp (inp) r = 0 (0xfffff80013bfae68) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctputil.c:1479
exclusive sleep mutex sctp-it (iterator) r = 0 (0xffffffff8261a850) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctputil.c:1456
shared rw sctp-info (sctp-info) r = 0 (0xfffffe0004956b60) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctputil.c:1455
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4213         4851K         4241
          tcp_hpts            5         3201K            5
             vtbuf           24         1968K           46
         sysctloid        28335         1653K        28399
              kobj          332         1328K          488
            newblk           16         1028K        13654
          vfscache            4         1025K            4
               pcb           82          598K         1846
          inodedep           15          519K         4230
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          388K            4
           subproc          126          249K         4124
            acpica         1674          185K        52709
         vnet_data            1          168K            1
           pagedep           13          131K         2956
        tfo_ccache            1          128K            1
          filedesc           18          121K         5828
               sem            4          106K            4
            DEVFS1          105          105K          122
            linker          244           92K          463
               bus         1186           89K         3626
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          497           63K          497
              umtx          342           43K          342
               BPF           22           36K          102
              temp           36           35K         6636
           kdtrace          171           33K        14503
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          124           31K          134
               msg            4           30K            4
         sctp_atcl           55           28K          737
         sctp_stro           27           27K          184
        DEVFS_RULE           56           27K           56
              vmem            3           26K            5
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
            ifaddr           67           22K          267
         ufs_mount            3           17K            4
              proc            3           17K            3
               tty           16           16K           16
           tidhash            1           16K            1
           ithread           98           16K           98
            bus-sc           30           14K         1431
           lltable           38           13K          322
            KTRACE          100           13K          100
             ifnet            7           13K            7
              kenv           95           12K           99
       ether_multi          141           12K         1395
      eventhandler          132           12K          132
         pfs_nodes           20           10K           20
              GEOM           60           10K          487
              rman           82           10K          423
            select           67            9K           67
         in6_multi           64            9K          906
         bmsafemap            2            9K         3997
              UART           12            9K           12
           devstat            4            9K            4
               rpc            2            8K            2
         sctp_timw           32            8K           32
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
     audit_evclass          233            8K          291
             lockf           67            8K         2037
          routetbl           45            7K          442
           CAM DEV            3            6K          510
            kqueue           55            6K         4059
                vt           11            6K           11
            plimit           21            6K         1293
              cred           21            6K          460
       ufs_dirhash           27            6K           27
            sglist            5            6K            5
         CAM queue            5            6K         1528
           pf_rule            5            5K           41
         taskqueue           45            5K           45
          pf_ifnet           11            5K           51
           memdesc            1            4K            1
               MCA           32            4K           32
               UMA          249            4K          249
          sctp_ifa           32            4K          201
             evdev            4            4K            4
            DEVFSP           62            4K         1219
         sctp_atky           82            4K         1033
          kcovinfo           55            4K         1129
             hhook           13            4K           13
           session           24            3K          126
              pgrp           24            3K          131
           acpisem           22            3K           22
          terminal           11            3K           11
         proc-args           45            3K         1622
            ip6ndp           14            3K          143
           uidinfo            3            3K           69
          pf_table            1            2K           16
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
            Unitno           30            2K        10671
             mkdir           13            2K         5234
           CAM XPT           22            2K          543
            diradd           12            2K         3370
           acpidev           20            2K           20
               msi            9            2K            9
         newdirblk            9            2K         2617
               tun            7            2K            7
           softdep            1            1K            1
          indirdep            4            1K         4311
       ipsecpolicy            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
          in_multi            4            1K           68
             clone            8            1K            8
       vnodemarker            2            1K         1048
      NFSD session            1            1K            1
        CAM periph            4            1K          271
         sctp_athm           55            1K          773
          sctp_map           54            1K          368
               mld            6            1K            6
              igmp            6            1K            6
             nhops            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           86
          pci_link           10            1K           10
           pf_osfp            6            1K            6
         sctp_aadr           11            1K          111
          sctp_ifn            5            1K           68
            crypto            3            1K            3
         sctp_stri            1            1K           72
              pfil            4            1K            4
    chacha20random            1            1K            1
           CAM SIM            2            1K            2
             epoch            4            1K            4
              cdev            2            1K            2
       inpcbpolicy           14            1K         6664
 encap_export_host            8            1K            8
               osd            3            1K            9
         sctp_iter            1            1K          204
        ip_msource            4            1K           65
            vnodes            1            1K           54
               iov            1            1K        25482
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            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
              ktls            1            1K            1
          pmchooks            1            1K            1
            prison            4            1K            4
            soname            4            1K         7007
          nexusdev            5            1K            5
           entropy            2            1K          112
          sctp_vrf            1            1K            1
              vnet            1            1K            1
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          filecaps            2            1K          177
          freework            1            1K         6868
         sctp_a_it            1            1K          204
          p1003.1b            1            1K            1
           pf_altq            0            0K            0
           pf_temp            0            0K            0
           ath_hal            0            0K            0
        madt_table            0            0K            2
            athdev            0            0K            0
           ata_pci            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
               amr            0            0K            0
           scsi_da            0            0K           69
            ata_da            0            0K            0
            pvscsi            0            0K            0
          smartpqi            0            0K            0
           scsi_ch            0            0K            0
           scsi_cd            0            0K            0
            USBdev            0            0K            0
               USB            0            0K            0
       AHCI driver            0            0K            0
               agp            0            0K            0
              iavf            0            0K            0
               ixl            0            0K            0
           nvme_da            0            0K            0
           acpipwr            0            0K            0
            twsbuf            0            0K            0
      twe_commands            0            0K            0
      twa_commands            0            0K            0
       tcp_log_dev            0            0K           21
      midi buffers            0            0K            0
       fpukern_ctx            0            0K            0
             mixer            0            0K            0
          xen_intr            0            0K            0
              ac97            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
             hdacc            0            0K            0
              hdac            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
       dmar_dmamap            0            0K            0
              hdaa            0            0K            0
         acpi_perf            0            0K            0
         acpicmbat            0            0K            0
              isci            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
       SIIS driver            0            0K            0
     vm_fictitious            0            0K            0
           CAM CCB            0            0K        66272
               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
           UMAHash            0            0K            0
ag_tgt_map_t malloc            0            0K            0
ag_slr_map_t malloc            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K         2142
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K          523
           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
            dirrem            0            0K         3082
          freefile            0            0K         3034
          freeblks            0            0K         3123
          freefrag            0            0K           19
        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
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               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           21
       ip6_msource            0            0K            0
      ip6_moptions            0            0K            8
       in6_mfilter            0            0K            0
             frag6            0            0K            0
            tcplog            0            0K            0
lDevFlags * malloc            0            0K            0
               LRO            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K          244
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
      newreno data            0            0K            0
       ip_moptions            0            0K           33
        in_mfilter            0            0K          178
              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
tiDeviceHandle_t * malloc            0            0K            0
            statfs            0            0K         2681
       export_host            0            0K            0
        cl_savebuf            0            0K            5
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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            mwldev            0            0K            0
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          mrsasbuf            0            0K            0
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            biobuf            0            0K            0
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            MPSSAS            0            0K            0
          mbuf_tag            0            0K         1882
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               pts            0            0K            0
          ioctlops            0            0K          508
           Witness            0            0K            0
             stack            0            0K            0
               mps            0            0K            0
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               mpr            0            0K            0
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              sbuf            0            0K          288
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              SWAP            0            0K            0
               LED            0            0K            0
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             sigio            0            0K            1
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               pwd            0            0K            0
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          SCSI ENC            0            0K            0
           SCSI sa            0            0K            0
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     tr_raid1_data            0            0K            0
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       md_sii_data            0            0K            0
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   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
           NFS FHA            0            0K            0
         newnfsmnt            0            0K            0
  newnfsclient_req            0            0K            0
   NFSCL layrecall            0            0K            0
     NFSCL session            0            0K            0
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      NFSCL client            0            0K            0
       NFSCL deleg            0            0K            0
        NFSCL open            0            0K            0
       NFSCL owner            0            0K            0
            NFS fh            0            0K            0
           NFS req            0            0K            0
     NFSD usrgroup            0            0K            0
       NFSD string            0            0K            0
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     NFSD srvcache            0            0K            0
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            vtfont            0            0K            0
db> show ktr
No such command; use "help" to list available commands

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2020/05/01 05:25 freebsd 4ca3575516d2 a73c1fd9 console log report
* Struck through repros no longer work on HEAD.