syzbot


Fatal trap 9: general protection fault in sctp_lower_sosend

Status: fixed on 2020/08/16 13:23
Reported-by: syzbot+bc02585076c3cc977f9b@syzkaller.appspotmail.com
Fix commit: f5d30f7f7606 Improve the handling of concurrent send() calls for SCTP sockets, especially when having the explicit EOR mode enabled.
First crash: 999d, last: 946d
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd Fatal trap 9: general protection fault in sctp_lower_sosend (2) C 446 580d 900d 0/2 closed as invalid on 2022/04/02 23:30

Sample crash report:
Fatal trap 9: general protection fault while in kernel mode
cpuid = 0; apic id = 00
instruction pointer	= 0x20:0xffffffff8133c0b5
stack pointer	        = 0x0:0xfffffe00255f85d0
frame pointer	        = 0x0:0xfffffe00255f87a0
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 1062 (syz-executor7210921)
trap number		= 9
panic: general protection fault
cpuid = 0
time = 1592623945
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00255f82a0
vpanic() at vpanic+0x1c7/frame 0xfffffe00255f8300
panic() at panic+0x43/frame 0xfffffe00255f8360
trap_fatal() at trap_fatal+0x4ca/frame 0xfffffe00255f83e0
trap() at trap+0xda/frame 0xfffffe00255f8500
calltrap() at calltrap+0x8/frame 0xfffffe00255f8500
--- trap 0x9, rip = 0xffffffff8133c0b5, rsp = 0xfffffe00255f85d0, rbp = 0xfffffe00255f87a0 ---
sctp_lower_sosend() at sctp_lower_sosend+0x32e5/frame 0xfffffe00255f87a0
sctp_sosend() at sctp_sosend+0x501/frame 0xfffffe00255f88d0
sosend() at sosend+0xc6/frame 0xfffffe00255f8940
kern_sendit() at kern_sendit+0x33d/frame 0xfffffe00255f89f0
sendit() at sendit+0x224/frame 0xfffffe00255f8a50
sys_sendto() at sys_sendto+0x5c/frame 0xfffffe00255f8ab0
ia32_syscall() at ia32_syscall+0x24e/frame 0xfffffe00255f8bf0
int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0xfbffcf7c
KDB: enter: panic
[ thread pid 1062 tid 101078 ]
Stopped at      kdb_enter+0x67: movq    $0,0x14a50d6(%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                           0
rax                       0x12
rcx                       0x80  ll+0x5f
rdx         0xffffffff8195e8e0
rbx                          0
rsp         0xfffffe00255f8280
rbp         0xfffffe00255f82a0
rsi                        0x1
rdi                          0
r8                           0
r9                  0xffffffff
r10                          0
r11         0xfffffe002599ef10
r12         0xffffffff82068f70  ddb_dbbe
r13                          0
r14         0xffffffff819a9141
r15         0xffffffff819a9141
rip         0xffffffff810b4b17  kdb_enter+0x67
rflags                0x200082  kernphys+0x82
kdb_enter+0x67: movq    $0,0x14a50d6(%rip)
db> show proc
Process 1062 (syz-executor7210921) at 0xfffff8001687c000:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 783 at 0xfffff80003cf3520
 ABI: FreeBSD ELF32
 arguments: ./syz-executor721092150
 reaper: 0xfffff8000331a000 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe000498a9e8
   (map 0xfffffe000498a9e8)
   (map.pmap 0xfffffe000498aaa8)
   (pmap 0xfffffe000498ab08)
 threads: 2
100104                   s                                   syz-executor7210921
101078                   Run     CPU 0                       syz-executor7210921
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 1065   779   776     0  S       (threaded)                  syz-executor7210921
100103                   S       nanslp  0xffffffff8252f201  syz-executor7210921
101086                   S       sbwait  0xfffffe00239e29e4  syz-executor7210921
101087                   S       sbwait  0xfffffe00239e29e4  syz-executor7210921
 1064   782   776     0  R       (threaded)                  syz-executor7210921
100448                   RunQ                                syz-executor7210921
101084                   S       sbwait  0xfffffe00239e30f4  syz-executor7210921
101085                   S       sbwait  0xfffffe00239e30f4  syz-executor7210921
101090                   S       uwait   0xfffff80003a02500  syz-executor7210921
101091                   S       uwait   0xfffff800030fbc00  syz-executor7210921
 1063   780   776     0  S       (threaded)                  syz-executor7210921
100102                   S       nanslp  0xffffffff8252f201  syz-executor7210921
101082                   S       sbwait  0xfffffe00239e5804  syz-executor7210921
101083                   S       sbwait  0xfffffe00239e5804  syz-executor7210921
101088                   S       uwait   0xfffff800037c4700  syz-executor7210921
101089                   S       uwait   0xfffff800037c4200  syz-executor7210921
 1062   783   776     0  T       (threaded)                  syz-executor7210921
100104                   s                                   syz-executor7210921
101078                   Run     CPU 0                       syz-executor7210921
  783   778   776     0  S       nanslp  0xffffffff8252f201  syz-executor7210921
  782   778   776     0  S       nanslp  0xffffffff8252f201  syz-executor7210921
  780   778   776     0  S       nanslp  0xffffffff8252f201  syz-executor7210921
  779   778   776     0  S       nanslp  0xffffffff8252f201  syz-executor7210921
  778   776   776     0  S       nanslp  0xffffffff8252f200  syz-executor7210921
  776   774   776     0  Ss      pause   0xfffff80003cf30a8  csh
  774   682   774     0  Ss      select  0xfffff800039ee040  sshd
  748     1   748     0  Ss+     ttyin   0xfffff800037bd8b0  getty
  747     1   747     0  Ss+     ttyin   0xfffff80003b41cb0  getty
  746     1   746     0  Ss+     ttyin   0xfffff80003b444b0  getty
  745     1   745     0  Ss+     ttyin   0xfffff80003b44cb0  getty
  744     1   744     0  Ss+     ttyin   0xfffff800033c54b0  getty
  743     1   743     0  Ss+     ttyin   0xfffff800033c5cb0  getty
  742     1   742     0  Ss+     ttyin   0xfffff800033ca4b0  getty
  741     1   741     0  Ss+     ttyin   0xfffff800033cacb0  getty
  740     1   740     0  Ss+     ttyin   0xfffff800033c94b0  getty
  686     1   686     0  Ss      nanslp  0xffffffff8252f200  cron
  682     1   682     0  Ss      select  0xfffff800039ee540  sshd
  495     1   495     0  Ss      select  0xfffff80003c11440  syslogd
  424     1   424     0  Ss      select  0xfffff80003c12c40  devd
  423     1   423    65  Ss      select  0xfffff80003c12dc0  dhclient
  338     1   338     0  Ss      select  0xfffff800039ef640  dhclient
  335     1   335     0  Ss      select  0xfffff80003c113c0  dhclient
   23     0     0     0  DL      vlruwt  0xfffff800033fa520  [vnlru]
   22     0     0     0  DL      syncer  0xffffffff8261a458  [syncer]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100069                   D       qsleep  0xffffffff826197a0  [bufdaemon]
100076                   D       -       0xffffffff8200aa00  [bufspacedaemon-0]
100087                   D       sdflush 0xfffff80003cf9ce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff82640788  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100067                   D       psleep  0xffffffff82634c18  [dom0]
100074                   D       launds  0xffffffff82634c24  [laundry: dom0]
100075                   D       umarcl  0xffffffff8154fa70  [uma]
   18     0     0     0  DL      -       0xffffffff82362e58  [rand_harvestq]
   17     0     0     0  DL      pftm    0xffffffff82c583a0  [pf purge]
   16     0     0     0  DL      waiting 0xffffffff8261cbd0  [sctp_iterator]
   15     0     0     0  DL      -       0xffffffff82618dac  [soaiod4]
    9     0     0     0  DL      -       0xffffffff82618dac  [soaiod3]
    8     0     0     0  DL      -       0xffffffff82618dac  [soaiod2]
    7     0     0     0  DL      -       0xffffffff82618dac  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100033                   D       -       0xffffffff8223abc0  [doneq0]
100066                   D       -       0xffffffff8223aa90  [scanner]
    5     0     0     0  DL      crypto_ 0xfffff8000334d690  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff8000334d630  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff82632400  [crypto]
   14     0     0     0  DL      seqstat 0xfffff800030e2488  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100024                   D       -       0xffffffff8250e180  [g_event]
100025                   D       -       0xffffffff8250e188  [g_up]
100026                   D       -       0xffffffff8250e190  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100017                   D       -       0xfffff800030f9c00  [thr_0]
100018                   D       -       0xfffff800030f9c40  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100010                   I                                   [swi5: fast taskq]
100013                   I                                   [swi6: task queue]
100014                   I                                   [swi6: Giant taskq]
100019                   I                                   [swi4: clock (0)]
100020                   I                                   [swi4: clock (1)]
100021                   I                                   [swi3: vm]
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                   Run     CPU 1                       [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff8000331a000  [init]
   10     0     0     0  DL      audit_w 0xffffffff826328d8  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8250e710  [swapper]
100005                   D       -       0xfffff80003217e00  [if_config_tqg_0]
100006                   D       -       0xfffff80003217d00  [softirq_0]
100007                   D       -       0xfffff80003217c00  [softirq_1]
100008                   D       -       0xfffff80003217b00  [if_io_tqg_0]
100009                   D       -       0xfffff80003217a00  [if_io_tqg_1]
100011                   D       -       0xfffff80003350000  [kqueue_ctx taskq]
100012                   D       -       0xfffff8000334de00  [aiod_kick taskq]
100015                   D       -       0xfffff8000334db00  [in6m_free taskq]
100016                   D       -       0xfffff8000334da00  [thread taskq]
100023                   D       -       0xfffff8000334d900  [firmware taskq]
100028                   D       -       0xfffff8000334d700  [crypto_0]
100029                   D       -       0xfffff8000334d700  [crypto_1]
100043                   D       -       0xfffff8000334d400  [vtnet0 rxq 0]
100044                   D       -       0xfffff8000334d300  [vtnet0 txq 0]
100045                   D       -       0xfffff8000334d200  [vtnet0 rxq 1]
100046                   D       -       0xfffff8000334d100  [vtnet0 txq 1]
100048                   D       vtbslp  0xfffff80003524580  [virtio_balloon]
100052                   D       -       0xfffff8000334d000  [mca taskq]
100057                   D       -       0xffffffff81d4e870  [deadlkres]
100061                   D       -       0xfffff80003b32300  [acpi_task_0]
100062                   D       -       0xfffff80003b32300  [acpi_task_1]
100063                   D       -       0xfffff80003b32300  [acpi_task_2]
100065                   D       -       0xfffff8000334d500  [CAM taskq]
db> show all locks
Process 1062 (syz-executor7210921) thread 0xfffffe002599ea00 (101078)
exclusive sleep mutex sctp-send-tcb (tcbs) r = 0 (0xfffffe00259621c0) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_output.c:13197
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4212         4850K         4240
          tcp_hpts            5         3201K            5
             vtbuf           24         1968K           46
         sysctloid        27951         1631K        28015
              kobj          334         1336K          493
            newblk          102         1050K          484
          vfscache            4         1025K            4
               pcb           35          553K         1205
          inodedep            2          513K           71
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          118          238K         1133
            acpica         1674          185K        55859
         vnet_data            1          168K            1
           pagedep            2          129K           19
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          101          101K          110
            linker          239           96K          268
               bus          972           79K         3360
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          501           63K          501
              umtx          288           36K          288
              temp           18           33K         1559
           kdtrace          167           33K         3171
         hostcache            1           32K            1
               shm            1           32K            1
               msg            4           30K            4
            DEVFS3          120           30K          130
        DEVFS_RULE           56           27K           56
        gtaskqueue           18           26K           18
              vmem            3           22K            4
            kbdmux            6           22K            6
               BPF           10           18K           10
         ufs_mount            5           17K            6
              proc            3           17K            3
               tty           16           16K           16
           tidhash            1           16K            1
           ithread           98           16K           98
            bus-sc           30           14K         1439
            ifaddr           32           13K           32
            KTRACE          100           13K          100
         sctp_timw           49           13K           49
              kenv           92           12K           92
      eventhandler          132           12K          132
         pfs_nodes           20           10K           20
              GEOM           60           10K          488
              rman           82           10K          423
              UART           12            9K           12
           devstat            4            9K            4
               rpc            2            8K            2
         bmsafemap            1            8K           39
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         sctp_atcl           15            8K         1384
     audit_evclass          233            8K          291
           CAM DEV            3            6K          510
                vt           11            6K           11
            sglist            5            6K            5
         CAM queue            5            6K         1528
              cred           20            5K          252
         taskqueue           45            5K           45
       ufs_dirhash           24            5K           24
             ifnet            3            5K            3
               UMA          249            5K          249
           memdesc            1            4K            1
               MCA           32            4K           32
         sctp_stro            4            4K          536
            plimit           16            4K          353
             evdev            4            4K            4
          filedesc            1            4K            1
           lltable           11            4K           11
          routetbl           14            4K           14
             hhook           13            4K           13
            kqueue           51            4K         1068
       ether_multi           40            4K           45
          pf_ifnet            5            3K            6
         in6_multi           25            3K           25
           acpisem           22            3K           22
          terminal           11            3K           11
           session           19            3K           33
              pgrp           19            3K           33
           uidinfo            3            3K            9
            select           17            3K           17
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
         sctp_stri            4            2K          566
             lockf           16            2K           26
           CAM XPT           22            2K          543
         proc-args           36            2K          481
            Unitno           25            2K           37
           acpidev           20            2K           20
               msi            9            2K            9
           softdep            1            1K            1
       ipsecpolicy            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             clone            8            1K            8
       vnodemarker            2            1K           18
      NFSD session            1            1K            1
        CAM periph            4            1K          271
         sctp_atky           19            1K         2203
             nhops            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           86
          pci_link           10            1K           10
            ip6ndp            4            1K            5
          sctp_ifa            5            1K            5
            crypto            3            1K            3
          in_multi            2            1K            3
              pfil            4            1K            4
    chacha20random            1            1K            1
           CAM SIM            2            1K            2
             epoch            4            1K            4
              cdev            2            1K            2
 encap_export_host            8            1K            8
               osd            3            1K            9
          indirdep            1            1K            3
               mld            2            1K            2
          sctp_ifn            2            1K            2
              igmp            2            1K            2
            vnodes            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
         sctp_athm           15            1K         1667
            feeder            7            1K            7
       inpcbpolicy            6            1K          131
        loginclass            3            1K            7
            soname            8            1K         7489
     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
            diradd            1            1K           36
           tcpfunc            2            1K            2
          sctp_map            8            1K         1072
              ktls            1            1K            1
          pmchooks            1            1K            1
            prison            4            1K            4
            DEVFSP            2            1K            2
               tun            3            1K            3
          nexusdev            5            1K            5
           entropy            2            1K           35
          freework            1            1K           26
          sctp_vrf            1            1K            1
              vnet            1            1K            1
          acpiintr            1            1K            1
               pmc            1            1K            1
               iov            3            1K        13597
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
          filecaps            1            1K           66
          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
           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            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
       fpukern_ctx            0            0K            0
      midi buffers            0            0K            0
          xen_intr            0            0K            0
             mixer            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
              ac97            0            0K            0
             hdacc            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
       dmar_dmamap            0            0K            0
              hdac            0            0K            0
              hdaa            0            0K            0
         acpi_perf            0            0K            0
              isci            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
         acpicmbat            0            0K            0
       SIIS driver            0            0K            0
     vm_fictitious            0            0K            0
           CAM CCB            0            0K         1887
               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           13
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K            6
           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
         newdirblk            0            0K            8
            dirrem            0            0K           28
             mkdir            0            0K           16
          freefile            0            0K           26
          freeblks            0            0K           25
          freefrag            0            0K            7
        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
lDevFlags * malloc            0            0K            0
               LRO            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K          565
         sctp_iter            0            0K            3
         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
         sctp_a_it            0            0K            3
         sctp_aadr            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
tiDeviceHandle_t * malloc            0            0K            0
            statfs            0            0K          200
       export_host            0            0K            0
        cl_savebuf            0            0K            3
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
            netmap            0            0K            0
            mwldev            0            0K            0
        MVS driver            0            0K            0
     CAM ccb queue            0            0K            0
          mrsasbuf            0            0K            0
          mpt_user            0            0K            0
          mps_user            0            0K            0
            biobuf            0            0K            0
              aios            0            0K            0
               lio            0            0K            0
               acl            0            0K            0
            MPSSAS            0            0K            0
          mbuf_tag            0            0K           25
              accf            0            0K            0
               pts            0            0K            0
          ioctlops            0            0K           86
           Witness            0            0K            0
             stack            0            0K            0
               mps            0            0K            0
          mpr_user            0            0K            0
            MPRSAS            0            0K            0
               mpr            0            0K            0
            mfibuf            0            0K            0
        md_sectors            0            0K            0
              sbuf            0            0K          288
           md_disk            0            0K            0
          firmware            0            0K            0
        compressor            0            0K            0
           malodev            0            0K            0
              SWAP            0            0K            0
               LED            0            0K            0
         sysctltmp            0            0K          576
            sysctl            0            0K            1
              ekcd            0            0K            0
            dumper            0            0K            0
          sendfile            0            0K            0
              rctl            0            0K            0
          ix_sriov            0            0K            0
        aacraidcam            0            0K            0
                ix            0            0K            0
            ipsbuf            0            0K            0
            iirbuf            0            0K            0
             cache            0            0K            0
       aacraid_buf            0            0K            0
          kcovinfo            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
       tty console            0            0K            0
            aaccam            0            0K            0
            aacbuf            0            0K            0
              zstd            0            0K            0
            nvlist            0            0K            0
          SCSI ENC            0            0K            0
           SCSI sa            0            0K            0
        isofs_node            0            0K            0
       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
           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
      NFSCL layout            0            0K            0
     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
       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
       NFSD V4lock            0            0K            0
      NFSD V4state            0            0K            0
     NFSD srvcache            0            0K            0
       msdosfs_fat            0            0K            0
     msdosfs_mount            0            0K            0
      msdosfs_node            0            0K            0
            DEVFS4            0            0K            0
            DEVFS2            0            0K            0
            gntdev            0            0K            0
       privcmd_dev            0            0K            0
        evtchn_dev            0            0K            0
          xenstore            0            0K            0
         scsi_pass            0            0K            0
         ciss_data            0            0K            0
               xnb            0            0K            0
              xbbd            0            0K            0
               xbd            0            0K            0
           Balloon            0            0K            0
          sysmouse            0            0K            0
            vtfont            0            0K            0
db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
      mbuf_cluster   2048    9272     126        9272       0     254   19247104        0
   mbuf_jumbo_page   4096    3200    1372      262885       0     254   18726912        0
       mbuf_packet    256    8197     947       26387       0     254    2340864        0
               512    512    4180      52        4181       0      30    2166784        0
              mbuf    256    5894    1987      799765       0     254    2017536        0
          BUF TRIE    144     159   13337         528       0      62    1943424        0
              4096   4096     391       3        2014       0       2    1613824        0
       UMA Slabs 0    112   10691      31       10691       0     126    1200864        0
               128    128    9285      46       14990       0     126    1194368        0
         sctp_asoc   2288       4     506         536       0     254    1166880        0
              pbuf    832       0     969           0       0       2     806208        0
           sctp_ep   1280       7     503         565       0     254     652800        0
            socket    904      21     492        1730       0     254     463752        0
             65536  65536       6       0           6       0       1     393216        0
        sctp_raddr    736       4     513         536       0     254     380512        0
        256 Bucket   2048     156      28        2846       0       8     376832        0
        RADIX NODE    144    2281     208       41378       0      62     358416        0
             VNODE    488     515      61         544       0      30     281088        0
             tcpcb   1040       3     261           7       0     254     274560        0
         VM OBJECT    264     920      70       16360       0      30     261360        0
            THREAD   1792     117      27        1091       0       8     258048        0
             ripcb    488       1     511           4       0     254     249856        0
         udp_inpcb    488       2     510         120       0     254     249856        0
                64     64    2759     328        4021       0     254     197568        0
             65536  65536       1       2          54       0       1     196608        0
                16     16   11754     496       13096       0     254     196000        0
               128    128    1271     124       25581       0     126     178560        0
         UMA Zones    768     223       3         223       0      16     173568        0
                32     32    4443     471        5767       0     254     157248        0
              1024   1024     129      15         139       0      16     147456        0
       FFS2 dinode    256     486      84         512       0      62     145920        0
             65536  65536       2       0           2       0       1     131072        0
             unpcb    256       7     503        1017       0     254     130560        0
         tcp_inpcb    488       3     253           7       0     254     124928        0
         MAP ENTRY     96     877     383       42907       0     126     120960        0
        sctp_chunk    152      44     736       16697       0     254     118560        0
          ksiginfo    112      37    1007          57       0     126     116928        0
         vmem btag     56    1915     160        1915       0     254     116200        0
               256    256     103     332         503       0      62     111360        0
               128    128     559     216        1486       0     126      99200        0
              2048   2048       7      41        2658       0       8      98304        0
               256    256     256     119        2334       0      62      96000        0
         FFS inode    160     486      89         513       0      62      92000        0
           VMSPACE   2536      28       8        1045       0       4      91296        0
              PROC   1312      50      16        1065       0       8      86592        0
         filedesc0   1088      51      26        1066       0       8      83776        0
          UMA Kegs    384     209       6         209       0      30      82560        0
       S VFS Cache    108     589     167        1113       0     126      81648        0
        sctp_readq    152       4     516         283       0     254      79040        0
              4096   4096      15       3          28       0       2      73728        0
             g_bio    408       0     180        5202       0      30      73440        0
              1024   1024      10      58         281       0      16      69632        0
        128 Bucket   1024      39      28         209       0      16      68608        0
                64     64     607     464       14342       0     254      68544        0
               128    128     308     219         394       0     126      67456        0
             65536  65536       0       1         112       0       1      65536        0
             32768  32768       2       0           2       0       1      65536        0
             16384  16384       4       0           4       0       1      65536        0
               256    256     120     135        1273       0      62      65280        0
               512    512      23      97         210       0      30      61440        0
sctp_stream_msg_out    112       3     537         289       0     254      60480        0
              8192   8192       6       1           8       0       1      57344        0
         64 Bucket    512      60      44         760       0      30      53248        0
                64     64     284     535        1346       0     254      52416        0
                64     64     445     374         679       0     254      52416        0
               128    128     325      78         389       0     126      51584        0
               256    256      52     143         189       0      62      49920        0
         32 Bucket    256      41     154         453       0      62      49920        0
           DIRHASH   1024      34      14          34       0      16      49152        0
             NAMEI   1024       0      48       11575       0      16      49152        0
             16384  16384       3       0           4       0       1      49152        0
              2048   2048       8      16         566       0       8      49152        0
              1024   1024      10      38         542       0      16      49152        0
               512    512      71      25         392       0      30      49152        0
               512    512      21      75        2460       0      30      49152        0
          syncache    168       0     264           5       0     254      44352        0
              8192   8192       4       1          32       0       1      40960        0
              4096   4096       8       2          12       0       2      40960        0
            clpbuf    832       0      48         113       0      16      39936        0
             selfd     64      37     530        5982       0     254      36288        0
                64     64      12     555          26       0     254      36288        0
                64     64      12     555          36       0     254      36288        0
                64     64      33     534          65       0     254      36288        0
                64     64      36     531        1169       0     254      36288        0
               128    128      19     260          77       0     126      35712        0
               128    128      13     266          14       0     126      35712        0
               128    128      62     217          67       0     126      35712        0
     routing nhops    256       8     127          18       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
               256    256      32     103         376       0      62      34560        0
               256    256      22     113         683       0      62      34560        0
               256    256      64      71         156       0      62      34560        0
               256    256       7     128        1275       0      62      34560        0
             32768  32768       1       0           1       0       1      32768        0
             32768  32768       0       1         112       0       1      32768        0
              2048   2048       4      12          16       0       8      32768        0
              2048   2048       5      11           6       0       8      32768        0
              2048   2048       3      13         194       0       8      32768        0
              1024   1024       2      30          31       0      16      32768        0
              1024   1024       9      23         879       0      16      32768        0
              1024   1024       4      28          22       0      16      32768        0
               512    512       4      60          39       0      30      32768        0
               512    512      19      45          20       0      30      32768        0
     mt_stats_zone     64     443      69         443       0     254      32768        0
           64 pcpu      8    3397     699        3399       0     254      32768        0
            ttyinq    160     135      65         300       0      62      32000        0
            cpuset    104       7     272           7       0     126      29016        0
        sctp_laddr     48       0     588           4       0     254      28224        0
         hostcache     96       1     293           1       0     254      28224        0
                32     32     312     570         372       0     254      28224        0
          4 Bucket     48      11     577        7078       0     254      28224        0
        KMAP ENTRY     96      12     279          12       0     126      27936        0
           rtentry    208      14     119          18       0      62      27664        0
              pipe    760       6      29         284       0      16      26600        0
         TURNSTILE    136     145      44         145       0      62      25704        0
              8192   8192       3       0           3       0       1      24576        0
              4096   4096       2       4         202       0       2      24576        0
          rl_entry     40      26     580          26       0     254      24240        0
          8 Bucket     80      41     259        7609       0     126      24000        0
       Mountpoints   2816       2       6           2       0       4      22528        0
        SLEEPQUEUE     88     145     111         145       0     126      22528        0
             udpcb     32       2     628         120       0     254      20160        0
               PWD     32      10     620         101       0     254      20160        0
             Files     72      72     208        6933       0     126      20160        0
                32     32      21     609          42       0     254      20160        0
                32     32      42     588        1135       0     254      20160        0
                32     32      36     594         131       0     254      20160        0
                32     32      34     596         793       0     254      20160        0
                32     32      42     588        2883       0     254      20160        0
                32     32      39     591        1907       0     254      20160        0
         16 Bucket    144      42      98         146       0      62      20160        0
          2 Bucket     32      44     586        9000       0     254      20160        0
          procdesc    136       1     144           6       0      62      19720        0
 epoch_record pcpu    256       4      60           4       0      62      16384        0
             16384  16384       1       0           1       0       1      16384        0
             16384  16384       0       1         136       0       1      16384        0
              8192   8192       2       0           2       0       1      16384        0
              8192   8192       1       1          82       0       1      16384        0
              8192   8192       2       0           2       0       1      16384        0
              4096   4096       0       4           3       0       2      16384        0
              4096   4096       2       2           2       0       2      16384        0
              2048   2048       7       1           7       0       8      16384        0
              1024   1024       1      15           1       0      16      16384        0
              1024   1024       1      15           1       0      16      16384        0
               512    512      11      21          11       0      30      16384        0
               512    512       1      31           4       0      30      16384        0
      vtnet_tx_hdr     24       0     668        1414       0     254      16032        0
           mt_zone     24     443     225         443       0     254      16032        0
              kenv    258       3      57        1109       0      30      15480        0
               MAP    216       2      69           2       0      62      15336        0
     FPU_save_area    832       1      17           1       0      16      14976        0
              vmem   1856       1       7           1       0       8      14848        0
             KNOTE    160       0      75           8       0      62      12000        0
                16     16      11     739          45       0     254      12000        0
                16     16      28     722          67       0     254      12000        0
                16     16     259     491         416       0     254      12000        0
                16     16      24     726        1110       0     254      12000        0
                16     16      29     721       25987       0     254      12000        0
                16     16      28     722        1942       0     254      12000        0
              8192   8192       1       0           1       0       1       8192        0
              8192   8192       1       0           1       0       1       8192        0
              4096   4096       1       1           1       0       2       8192        0
              4096   4096       1       1           1       0       2       8192        0
           SMR CPU     32       1     254           1       0     254       8160        0
                16     16     185     315        1239       0     254       8000        0
        SMR SHARED     24       1     254           1       0     254       6120        0
              2048   2048       0       2          32       0       8       4096        0
       UMA Slabs 1    176       8      14           8       0      62       3872        0
          int pcpu      4      34     478          34       0     254       2048        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
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    256       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
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    184       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    280       0       0           0       0      30          0        0
             AIOCB    752       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
           NCLNODE    592       0       0           0       0      16          0        0
             rentr     24       0       0           0       0     254          0        0
     LTS VFS Cache    368       0       0           0       0      30          0        0
       L VFS Cache    328       0       0           0       0      30          0        0
     STS VFS Cache    148       0       0           0       0      62          0        0
         VNODEPOLL    120       0       0           0       0     126          0        0
    crypto_session     72       0       0           0       0     126          0        0
           cryptop    272       0       0           0       0      30          0        0
      nvme_request    128       0       0           0       0     126          0        0
    DMAR_MAP_ENTRY    128       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
             65536  65536       0       0           0       0       1          0        0
             65536  65536       0       0           0       0       1          0        0
             65536  65536       0       0           0       0       1          0        0
             65536  65536       0       0           0       0       1          0        0
             32768  32768       0       0           0       0       1          0        0
             32768  32768       0       0           0       0       1          0        0
             32768  32768       0       0           0       0       1          0        0
             32768  32768       0       0           0       0       1          0        0
             32768  32768       0       0           0       0       1          0        0
             16384  16384       0       0           0       0       1          0        0
             16384  16384       0       0           0       0       1          0        0
             16384  16384       0       0           0       0       1          0        0
             16384  16384       0       0           0       0       1          0        0
              2048   2048       0       0           0       0       8          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (22):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-i386 2020/06/20 03:35 freebsd 6328f17203f7 c655ec77 console log report syz C
ci-freebsd-main 2020/06/20 04:01 freebsd 6328f17203f7 c655ec77 console log report syz
ci-freebsd-i386 2020/06/15 23:09 freebsd 58a1a1f8df2e baca2611 console log report syz
ci-freebsd-main 2020/06/28 07:41 freebsd c4c379084ce6 a2cdad9d console log report
ci-freebsd-main 2020/06/23 12:38 freebsd 3e409ae06f59 1afe1535 console log report
ci-freebsd-main 2020/05/20 15:22 freebsd 46b379aa12ce 4afdfa20 console log report
ci-freebsd-main 2020/05/14 10:01 freebsd 55e6d5759ca3 2d572622 console log report
ci-freebsd-i386 2020/07/05 23:34 freebsd 5f77acf48592 695ef2dd console log report
ci-freebsd-i386 2020/07/05 09:41 freebsd 0d3509df958c 695ef2dd console log report
ci-freebsd-i386 2020/07/04 11:08 freebsd f685e787cd24 695ef2dd console log report
ci-freebsd-i386 2020/07/04 01:04 freebsd d8ef564122c1 695ef2dd console log report
ci-freebsd-i386 2020/07/01 23:56 freebsd 0f7e7ff80e96 695ef2dd console log report
ci-freebsd-i386 2020/06/29 21:37 freebsd 5ca3c99233c0 ce9ef6f2 console log report
ci-freebsd-i386 2020/06/29 16:25 freebsd 5125d3efcf8e 0375051c console log report
ci-freebsd-i386 2020/06/23 15:40 freebsd 49baceb91aae 8e0c064e console log report
ci-freebsd-i386 2020/06/23 14:51 freebsd 49baceb91aae 8e0c064e console log report
ci-freebsd-i386 2020/06/23 01:23 freebsd 3e409ae06f59 1afe1535 console log report
ci-freebsd-i386 2020/06/21 05:48 freebsd b1098dd9acab c655ec77 console log report
ci-freebsd-i386 2020/06/20 13:21 freebsd 6328f17203f7 c655ec77 console log report
ci-freebsd-i386 2020/06/20 02:42 freebsd 6328f17203f7 c655ec77 console log report
ci-freebsd-i386 2020/06/18 16:36 freebsd c8392f60819a 3ea11d3f console log report
ci-freebsd-i386 2020/06/15 22:50 freebsd 58a1a1f8df2e baca2611 console log report
* Struck through repros no longer work on HEAD.