syzbot


Fatal trap 9: general protection fault in sctp_is_vtag_good

Status: auto-closed as invalid on 2021/04/02 18:09
Reported-by: syzbot+517b3b8bf4f59c012c73@syzkaller.appspotmail.com
First crash: 1283d, last: 1205d

Sample crash report:
Fatal trap 9: general protection fault while in kernel mode
cpuid = 0; apic id = 00
instruction pointer	= 0x20:0xffffffff82bc94b4
stack pointer	        = 0x28:0xfffffe005ddf13e0
frame pointer	        = 0x28:0xfffffe005ddf1430
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		= 54247 (syz-executor.2)
trap number		= 9
panic: general protection fault
cpuid = 0
time = 32
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe005ddf10b0
vpanic() at vpanic+0x1c7/frame 0xfffffe005ddf1110
panic() at panic+0x43/frame 0xfffffe005ddf1170
trap_fatal() at trap_fatal+0x4cd/frame 0xfffffe005ddf11f0
trap() at trap+0xf7/frame 0xfffffe005ddf1310
calltrap() at calltrap+0x8/frame 0xfffffe005ddf1310
--- trap 0x9, rip = 0xffffffff82bc94b4, rsp = 0xfffffe005ddf13e0, rbp = 0xfffffe005ddf1430 ---
sctp_is_vtag_good() at sctp_is_vtag_good+0xb4/frame 0xfffffe005ddf1430
sctp_select_a_tag() at sctp_select_a_tag+0x179/frame 0xfffffe005ddf14a0
sctp_init_asoc() at sctp_init_asoc+0x38d/frame 0xfffffe005ddf1510
sctp_aloc_assoc() at sctp_aloc_assoc+0x4dc/frame 0xfffffe005ddf1590
sctp_lower_sosend() at sctp_lower_sosend+0xfcf/frame 0xfffffe005ddf17a0
sctp_sosend() at sctp_sosend+0x4fc/frame 0xfffffe005ddf18d0
sosend() at sosend+0xc6/frame 0xfffffe005ddf1940
kern_sendit() at kern_sendit+0x35b/frame 0xfffffe005ddf19f0
sendit() at sendit+0x229/frame 0xfffffe005ddf1a50
sys_sendto() at sys_sendto+0x5c/frame 0xfffffe005ddf1ab0
amd64_syscall() at amd64_syscall+0x247/frame 0xfffffe005ddf1bf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe005ddf1bf0
--- syscall (198, FreeBSD ELF64, nosys), rip = 0x284cca, rsp = 0x7fffdfffdf08, rbp = 0x7fffdfffdf70 ---
KDB: enter: panic
[ thread pid 54247 tid 155733 ]
Stopped at      kdb_enter+0x67: movq    $0,0x1477096(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx         0xfffffe0173a00000
rdx                    0x3ffff
rbx                          0
rsp         0xfffffe005ddf1090
rbp         0xfffffe005ddf10b0
rsi                    0x40001
rdi         0xffffffff810f13b6  vprintf+0x176
r8                           0
r9                  0xffffffff
r10                          0
r11                          0
r12         0xffffffff820671c0  ddb_dbbe
r13                          0
r14         0xffffffff8197de47
r15         0xffffffff8197de47
rip         0xffffffff810e56e7  kdb_enter+0x67
rflags                    0x86
kdb_enter+0x67: movq    $0,0x1477096(%rip)
db> show proc
Process 54247 (syz-executor.2) at 0xfffff80013209a50:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 47484 at 0xfffff80004d1d000
 ABI: FreeBSD ELF64
 arguments: /root/syz-executor.2
 reaper: 0xfffff80004453528 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe00887c59f0
   (map 0xfffffe00887c59f0)
   (map.pmap 0xfffffe00887c5ab0)
   (pmap 0xfffffe00887c5b10)
 threads: 2
100098                   RunQ                                syz-executor.2
155733                   Run     CPU 0                       syz-executor.2
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
54249 47485 47485     0  R       (threaded)                  syz-executor.3
100218                   RunQ                                syz-executor.3
155735                   L      *sctp-in 0xfffff800131fb9c0  syz-executor.3
54248 47488 47488     0  R       (threaded)                  syz-executor.0
100154                   Run     CPU 1                       syz-executor.0
155734                   L      *sctp-in 0xfffff800131fb9c0  syz-executor.0
54247 47484 47484     0  R       (threaded)                  syz-executor.2
100098                   RunQ                                syz-executor.2
155733                   Run     CPU 0                       syz-executor.2
47488   774 47488     0  Rs                                  syz-executor.0
47485   774 47485     0  Rs                                  syz-executor.3
47484   774 47484     0  Rs                                  syz-executor.2
33693   774 33693     0  Rs                                  syz-executor.1
 7994  7988  7994     0  Ss      select  0xfffff800046dd6c0  dhclient
 7991     1  7991     0  Ss      select  0xfffff80004536c40  dhclient
 7988  7981   436    65  S       select  0xfffff800046dd9c0  dhclient
 7981   436   436     0  SW      wait    0xfffff800138b4528  sh
  774   772   772     0  S       (threaded)                  syz-fuzzer
100090                   S       uwait   0xfffff80004e6fb80  syz-fuzzer
100108                   S       uwait   0xfffff800132b4280  syz-fuzzer
100109                   S       uwait   0xfffff80013457880  syz-fuzzer
100110                   S       uwait   0xfffff80013457980  syz-fuzzer
100111                   S       uwait   0xfffff80013457780  syz-fuzzer
100112                   S       uwait   0xfffff80013457a80  syz-fuzzer
100113                   S       kqread  0xfffff80004aa1100  syz-fuzzer
100114                   S       uwait   0xfffff80013457b80  syz-fuzzer
100115                   S       uwait   0xfffff80004b59000  syz-fuzzer
100117                   S       uwait   0xfffff80004b59200  syz-fuzzer
  772   770   772     0  SWs     pause   0xfffff80004d860b0  csh
  770   694   770     0  Ss      select  0xfffff800046dd8c0  sshd
  754     1   754     0  Ss+     ttyin   0xfffff80004878cb0  getty
  753     1   753     0  Ss+     ttyin   0xfffff80004b6d0b0  getty
  752     1   752     0  Ss+     ttyin   0xfffff80004b6d4b0  getty
  751     1   751     0  Ss+     ttyin   0xfffff80004b6d8b0  getty
  750     1   750     0  Ss+     ttyin   0xfffff80004b6dcb0  getty
  749     1   749     0  Ss+     ttyin   0xfffff80004b750b0  getty
  748     1   748     0  Ss+     ttyin   0xfffff80004b754b0  getty
  747     1   747     0  Ss+     ttyin   0xfffff80004b758b0  getty
  746     1   746     0  Ss+     ttyin   0xfffff80004b75cb0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8252ff21  cron
  694     1   694     0  Ss      select  0xfffff800046dfb40  sshd
  507     1   507     0  Ds      getbuf  0xfffffe0003e3917c  syslogd
  436     1   436     0  SWs     wait    0xfffff80004e79a50  devd
  435     1   435    65  Ss      select  0xfffff800046dfe40  dhclient
  350     1   350     0  Ss      select  0xfffff800046dfec0  dhclient
  347     1   347     0  Ss      select  0xfffff800046e0140  dhclient
   23     0     0     0  DL      syncer  0xffffffff8261f2b8  [syncer]
   22     0     0     0  DL      vlruwt  0xfffff80004d1da50  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100070                   D       qsleep  0xffffffff8261e3a0  [bufdaemon]
100073                   D       -       0xffffffff8200ac80  [bufspacedaemon-0]
100084                   D       sdflush 0xfffff80004da50e8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff82645848  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100068                   D       psleep  0xffffffff82639cb8  [dom0]
100071                   D       launds  0xffffffff82639cc4  [laundry: dom0]
100072                   D       umarcl  0xffffffff814f6e00  [uma]
   18     0     0     0  DL      -       0xffffffff823642e8  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff82c17818  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff82d93390  [pf purge]
   15     0     0     0  DL      -       0xffffffff8261b95c  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8261b95c  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8261b95c  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8261b95c  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100034                   D       -       0xffffffff8223c040  [doneq0]
100067                   D       -       0xffffffff8223bf10  [scanner]
    5     0     0     0  DL      crypto_ 0xfffff800044eb990  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff800044eb930  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff826371b0  [crypto]
   14     0     0     0  DL      seqstat 0xfffff80004083888  [sequencer 00]
   13     0     0     0  DL      (threaded)                  [geom]
100025                   D       -       0xffffffff8250f7a0  [g_event]
100026                   D       -       0xffffffff8250f7a8  [g_up]
100027                   D       -       0xffffffff8250f7b0  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100018                   D       -       0xfffff80004344b00  [thr_0]
100019                   D       -       0xfffff80004344b80  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100012                   I                                   [swi6: task queue]
100013                   I                                   [swi6: Giant taskq]
100017                   I                                   [swi5: fast taskq]
100020                   I                                   [swi3: vm]
100021                   I                                   [swi1: netisr 0]
100022                   I                                   [swi4: clock (0)]
100023                   I                                   [swi4: clock (1)]
100035                   I                                   [irq24: virtio_pci0]
100036                   I                                   [irq25: virtio_pci0]
100037                   I                                   [irq26: virtio_pci0]
100038                   I                                   [irq27: virtio_pci0]
100039                   I                                   [irq28: virtio_pci1]
100040                   I                                   [irq29: virtio_pci1]
100041                   I                                   [irq30: virtio_pci1]
100042                   I                                   [irq31: virtio_pci1]
100043                   I                                   [irq32: virtio_pci1]
100048                   I                                   [irq10: virtio_pci2]
100050                   I                                   [irq1: atkbd0]
100051                   I                                   [irq12: psm0]
100052                   I                                   [swi0: uart uart++]
100060                   I                                   [swi1: pf send]
100076                   I                                   [swi1: hpts]
100077                   I                                   [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff80004453528  [init]
   10     0     0     0  DL      audit_w 0xffffffff826376d0  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8250fd30  [swapper]
100005                   D       -       0xfffff80004349d00  [softirq_0]
100006                   D       -       0xfffff80004349c00  [softirq_1]
100007                   D       -       0xfffff80004349b00  [if_io_tqg_0]
100008                   D       -       0xfffff80004349a00  [if_io_tqg_1]
100009                   D       -       0xfffff80004349900  [if_config_tqg_0]
100010                   D       -       0xfffff80004349800  [kqueue_ctx taskq]
100011                   D       -       0xfffff80004349700  [inm_free taskq]
100014                   D       -       0xfffff80004349400  [aiod_kick taskq]
100015                   D       -       0xfffff80004349300  [thread taskq]
100016                   D       -       0xfffff80004349200  [in6m_free taskq]
100024                   D       -       0xfffff80004349000  [firmware taskq]
100029                   D       -       0xfffff800044c3e00  [crypto_0]
100030                   D       -       0xfffff800044c3e00  [crypto_1]
100044                   D       -       0xfffff800044c3a00  [vtnet0 rxq 0]
100045                   D       -       0xfffff800044c3900  [vtnet0 txq 0]
100046                   D       -       0xfffff800044c3800  [vtnet0 rxq 1]
100047                   D       -       0xfffff800044c3700  [vtnet0 txq 1]
100049                   D       vtbslp  0xfffff800046e0200  [virtio_balloon]
100053                   D       -       0xfffff800044c3600  [mca taskq]
100058                   D       -       0xffffffff81d263d1  [deadlkres]
100062                   D       -       0xfffff80004b78e00  [acpi_task_0]
100063                   D       -       0xfffff80004b78e00  [acpi_task_1]
100064                   D       -       0xfffff80004b78e00  [acpi_task_2]
100066                   D       -       0xfffff800044c3d00  [CAM taskq]
db> show all locks
Process 54248 (syz-executor.0) thread 0xfffffe00887fac00 (100154)
exclusive sleep mutex umtxql (umtxql) r = 0 (0xffffffff82553090) locked @ /syzkaller/managers/main/kernel/sys/kern/kern_umtx.c:511
Process 54247 (syz-executor.2) thread 0xfffffe0088808c00 (155733)
shared rw sctp-info (sctp-info) r = 0 (0xfffffe00047982d8) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:6706
exclusive sleep mutex sctp-create (inp_create) r = 0 (0xfffff800779ce488) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_output.c:12606
Process 33693 (syz-executor.1) thread 0xfffffe008878e500 (100104)
exclusive lockmgr bufwait (bufwait) r = 0 (0xfffffe0003e37600) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_bio.c:3895
exclusive lockmgr ufs (ufs) r = 0 (0xfffff8001384a258) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_lookup.c:1063
Process 507 (syslogd) thread 0xfffffe0088536e00 (100087)
exclusive lockmgr ufs (ufs) r = 0 (0xfffff80013275440) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_syscalls.c:3506
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4216         4339K         4244
          tcp_hpts            5         3201K            5
             vtbuf           24         1968K           46
         sysctloid        29670         1738K        29735
              kobj          336         1344K          496
               pcb          613         1201K        27478
            newblk            5         1025K        54961
          vfscache            3         1025K            3
          inodedep           55          533K        64442
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
         sctp_stro          294          294K         2824
           subproc          130          245K        54453
         sctp_atcl          589          221K        15012
            acpica         1674          184K        54410
         vnet_data            1          168K            1
           tidhash            3          141K            3
           pagedep            7          130K       113732
        tfo_ccache            1          128K            1
          filedesc           16          121K       106598
               sem            4          106K            4
            DEVFS1          105          105K          122
            linker          268           99K          533
               bus          990           80K         3306
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          509           64K          509
           pf_osfp          422           52K          422
            ifaddr          145           48K          273
           pf_rule           65           44K          123
              umtx          324           41K          324
           kdtrace          197           40K       109988
         sctp_atky          883           37K        17833
               BPF           22           36K           30
              temp           35           33K         7665
         hostcache            1           32K            1
               shm            1           32K          245
            DEVFS3          124           31K          134
               msg            4           30K            4
            dirrem          104           26K        56816
              vmem            3           26K            6
        gtaskqueue           18           26K           18
         sctp_timw           88           22K           88
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
         ufs_mount            5           17K            6
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
       ether_multi          172           14K         2163
            bus-sc           31           14K         1547
           lltable           43           14K          357
            KTRACE          100           13K          100
             ifnet            7           13K            7
          freefile           94           12K        56808
              kenv           92           12K           92
      eventhandler          126           11K          126
         in6_multi           89           11K         1093
              GEOM           60           10K          489
              rman           82           10K          423
         sctp_athm          589           10K        15012
          sctp_map          588           10K         5648
         bmsafemap            2            9K        57937
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K            1
               rpc            2            8K            2
             shmfd            1            8K          965
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          233            8K          291
              cred           27            7K         1297
            sglist            5            7K            5
           CAM DEV            3            6K          510
            kqueue           56            6K        59310
            plimit           21            6K         1486
         CAM queue            5            6K         1528
         taskqueue           48            6K           48
          pf_ifnet           11            5K          223
            DEVFSP           72            5K         1420
               UMA          258            5K          258
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
       ufs_dirhash            8            4K           24
          kcovinfo           64            4K         1343
             evdev            4            4K            4
          sctp_ifa           31            4K          217
          routetbl           20            4K           92
           pwddesc           54            4K        54251
             hhook           13            4K           13
           session           25            4K          130
              pgrp           25            4K          398
          terminal           11            3K           11
           acpisem           22            3K           22
         proc-args           44            3K         1591
             lockf           22            3K          724
           uidinfo            3            3K          454
        local_apic            1            2K            1
           io_apic            1            2K            1
           CAM CCB            1            2K       131619
         ipsec-saq            2            2K            2
            ip6ndp           12            2K          147
           CAM XPT           22            2K          543
             selfd           25            2K      1307322
            Unitno           26            2K          694
          in_multi            6            2K           77
       ipsecpolicy            2            2K            2
            select           10            2K           37
           acpidev           20            2K           20
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K           28
       vnodemarker            2            1K          224
      NFSD session            1            1K            1
        CAM periph            4            1K          271
             ipsec            3            1K            3
          sctp_ifn            6            1K          217
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
 encap_export_host           12            1K           12
            crypto            3            1K            3
            ip6opt            2            1K         1948
              pfil            4            1K            4
           CAM SIM            2            1K            2
              cdev            2            1K            2
         newdirblk            3            1K        54309
             mkdir            3            1K       108618
            diradd            3            1K        56853
    chacha20random            1            1K            1
       inpcbpolicy           10            1K        23167
               osd            3            1K           10
            vnodes            1            1K            1
              ktls            1            1K            1
          procdesc            2            1K           10
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            feeder            7            1K            7
        loginclass            3            1K            6
            prison            6            1K            6
            soname            5            1K       110566
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
            apmdev            1            1K            1
          atkbddev            2            1K            2
          CAM path            4            1K         1034
          freework            1            1K        54324
           tcpfunc            2            1K            2
          pmchooks            1            1K            1
          nexusdev            5            1K            5
          sctp_vrf            1            1K            1
           entropy            2            1K          120
              vnet            1            1K            1
               pmc            1            1K            1
          acpiintr            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          filecaps            2            1K           92
          p1003.1b            1            1K            1
            mqdata            0            0K            0
          pf_table            0            0K            0
           pf_altq            0            0K            0
           pf_temp            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K          903
         sctp_iter            0            0K          226
         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          226
         sctp_aadr            0            0K          510
         sctp_stri            0            0K            0
            nvlist            0            0K            0
          SCSI ENC            0            0K            0
           SCSI sa            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
         scsi_pass            0            0K            0
         ciss_data            0            0K            0
            pvscsi            0            0K            0
           ath_hal            0            0K            0
            athdev            0            0K            0
           ata_pci            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
              iavf            0            0K            0
               ixl            0            0K            0
               amr            0            0K            0
           scsi_da            0            0K           69
            ata_da            0            0K            0
           scsi_ch            0            0K            0
           scsi_cd            0            0K            0
            USBdev            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
             axgbe            0            0K            0
       fpukern_ctx            0            0K            0
               USB            0            0K            0
          xen_intr            0            0K            0
       AHCI driver            0            0K            0
               agp            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
           nvme_da            0            0K            0
           acpipwr            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
      mbuf_cluster   2048    8916       2       60101       0       8   18264064        0
        RADIX NODE    144    5056   28177    29095084       0      62    4785552        0
       mbuf_packet    256    8277     511      291753       0     254    2249728        0
              pbuf   2632       0     810           0       0       2    2131920        0
          BUF TRIE    144     188   13280       54201       0      62    1939392        0
        malloc-384    384    4262     128       68776       0      30    1685760        0
       malloc-4096   4096     337       0         572       0       2    1380352        0
        malloc-128    128    9716      80       10439       0     126    1253888        0
         sctp_asoc   2288     295       0        2825       0       4     674960        0
       UMA Slabs 0    112    5571      42       10481       0     126     628656        0
       malloc-2048   2048     302       2       12425       0       8     622592        0
         FFS inode   1128     514      25       57337       0       8     607992        0
       malloc-1024   1024     409       3        3086       0      16     421888        0
   mbuf_jumbo_page   4096      96       5       13158       0       2     413696        0
         VM OBJECT    264    1301     184      767559       0      30     392040        0
              mbuf    256    1044     443      391215       0     254     380672        0
           sctp_ep   1280     295       2       12191       0       8     380160        0
             VNODE    488     551      89       57376       0      30     312320        0
       malloc-4096   4096      66       5       54773       0       2     290816        0
            THREAD   1792     142      20       55736       0       8     290304        0
      malloc-65536  65536       4       0           4       0       1     262144        0
            DEVCTL   1024     142     102         262       0       0     249856        0
        malloc-384    384     590      10       15315       0      30     230400        0
        sctp_raddr    736     294      14        2821       0      16     226688        0
      malloc-16384  16384       8       5       53265       0       1     212992        0
         malloc-64     64    3101     175        4386       0     254     209664        0
         malloc-16     16   12421     329       12730       0     254     204000        0
      malloc-65536  65536       1       2         320       0       1     196608        0
        256 Bucket   2048      79      15    36677196       0       8     192512        0
         UMA Zones    768     230       4         230       0      16     179712        0
        malloc-128    128    1326      69       26294       0     126     178560        0
       FFS2 dinode    256     514     131       57337       0      62     165120        0
         MAP ENTRY     96    1293     387     3008992       0     126     161280        0
         malloc-32     32    4569      93        5352       0     254     149184        0
       S VFS Cache    104    1014     390       63255       0     126     146016        0
        malloc-256    256     548       7       14072       0      62     142080        0
      malloc-65536  65536       2       0          10       0       1     131072        0
         64 Bucket    512     189      67      609880       0      30     131072        0
        malloc-128    128     684     277      168785       0     126     123008        0
        malloc-128    128     661     269       59045       0     126     119040        0
         vmem btag     56    1873     203        2034       0     254     116256        0
           VMSPACE   2544      31      14       54229       0       4     114480        0
        malloc-256    256     236     184      282192       0      62     107520        0
        malloc-128    128     519     287       57261       0     126     103168        0
              PROC   1320      53      22       54250       0       8      99000        0
            socket    944      28      72       43801       0      16      94400        0
        malloc-256    256     186     159      117952       0      62      88320        0
          UMA Kegs    384     216       7         216       0      30      85632        0
         filedesc0   1072      54      23       54251       0       8      82544        0
        128 Bucket   1024      45      34     1095071       0      16      80896        0
         malloc-64     64     741     519       55188       0     254      80640        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-16384  16384       4       0           4       0       1      65536        0
         malloc-64     64     916      92        9142       0     254      64512        0
       malloc-2048   2048       5      25      132386       0       8      61440        0
       malloc-8192   8192       7       0         100       0       1      57344        0
        malloc-256    256      65     145      193068       0      62      53760        0
        malloc-384    384     117      13        1540       0      30      49920        0
       malloc-4096   4096      12       0          23       0       2      49152        0
         malloc-64     64     247     509     1362862       0     254      48384        0
        sctp_chunk    152     301      11         429       0      62      47424        0
         32 Bucket    256      44     136     1215207       0      62      46080        0
       malloc-1024   1024      41       3          84       0      16      45056        0
              pipe    744      20      40       20283       0      16      44640        0
       malloc-4096   4096      10       0          14       0       2      40960        0
            pcpu-8      8    4644     476        5510       0     254      40960        0
         malloc-64     64      69     561       75117       0     254      40320        0
        malloc-256    256      36     114       57366       0      62      38400        0
             NAMEI   1024       1      35      281989       0      16      36864        0
             g_bio    408       4      86      523923       0      30      36720        0
             Files     80     193     257      170972       0     126      36000        0
        malloc-384    384      83       7          83       0      30      34560        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
           pcpu-64     64     454      58         454       0     254      32768        0
       malloc-1024   1024      23       5         991       0      16      28672        0
       malloc-1024   1024      20       8        3480       0      16      28672        0
               PWD     32      18     864       53063       0     254      28224        0
         malloc-32     32     305     577       54378       0     254      28224        0
             KNOTE    160      28     147      465022       0      62      28000        0
          8 Bucket     80      46     304     4539813       0     126      28000        0
        malloc-256    256       2     103       54421       0      62      26880        0
         TURNSTILE    136     163      26         163       0      62      25704        0
       malloc-8192   8192       3       0           4       0       1      24576        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-2048   2048      10       2          10       0       8      24576        0
         malloc-32     32     702      54       41734       0     254      24192        0
         16 Bucket    144      44     124     3595242       0      62      24192        0
          4 Bucket     48       9     495     7748846       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
        malloc-128    128      71     115       49510       0     126      23808        0
             tcpcb   1048       4      18       11509       0       8      23056        0
     routing nhops    256      23      67         307       0      62      23040        0
             unpcb    256      12      78        8268       0      62      23040        0
           ttyoutq    256      72      18         160       0      62      23040        0
       malloc-4096   4096       3       2         673       0       2      20480        0
       malloc-2048   2048      10       0          11       0       8      20480        0
         malloc-64     64      53     262         314       0     254      20160        0
          2 Bucket     32      23     607    21750726       0     254      20160        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-256    256      44      31         610       0      62      19200        0
        SLEEPQUEUE     88     163      29         163       0     126      16896        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0         154       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0          37       0       1      16384        0
       malloc-2048   2048       0       8         244       0       8      16384        0
           rtentry    176      30      62         307       0      62      16192        0
          ksiginfo    112      60      84        1601       0     126      16128        0
      vtnet_tx_hdr     24       0     668       74134       0     254      16032        0
        malloc-128    128      75      49         929       0     126      15872        0
         tcp_inpcb    488       4      28       11509       0      30      15616        0
         udp_inpcb    488       2      30        5156       0      30      15616        0
       malloc-4096   4096       0       3       54539       0       2      12288        0
       malloc-2048   2048       1       5        3273       0       8      12288        0
        malloc-512    512       4      20        1608       0      30      12288        0
          rl_entry     40      78     225          78       0     254      12120        0
             udpcb     32       4     374       10427       0     254      12096        0
         malloc-32     32      60     318        1388       0     254      12096        0
         malloc-32     32      93     285       10724       0     254      12096        0
         malloc-16     16     599     151        7812       0     254      12000        0
         malloc-16     16     466     284      102513       0     254      12000        0
         malloc-16     16     634     116       40049       0     254      12000        0
        malloc-256    256       7      38        1814       0      62      11520        0
       malloc-1024   1024       3       5          43       0      16       8192        0
       malloc-1024   1024       2       6          20       0      16       8192        0
       malloc-1024   1024       3       5           3       0      16       8192        0
        malloc-512    512      10       6          56       0      30       8192        0
        malloc-512    512       5      11           7       0      30       8192        0
sctp_stream_msg_out    112       7      65        1866       0     126       8064        0
        sctp_laddr     48      16     152        1745       0     254       8064        0
         malloc-64     64      19     107         781       0     254       8064        0
         malloc-32     32       9     243        3110       0     254       8064        0
         malloc-32     32      30     222         209       0     254       8064        0
         malloc-16     16      42     458        1638       0     254       8000        0
        malloc-128    128      37      25         411       0     126       7936        0
             ripcb    488       2      14        1231       0      30       7808        0
     udplite_inpcb    488       2      14        5271       0      30       7808        0
            itimer    352       0      22         147       0      30       7744        0
       tcp_bbr_pcb    832       0       9          99       0      16       7488        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       7      55        1671       0     126       6448        0
         domainset     40       0     126        1340       0     254       5040        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-4096   4096       1       0           1       0       2       4096        0
       malloc-2048   2048       1       1          15       0       8       4096        0
        malloc-512    512       0       8         122       0      30       4096        0
        malloc-512    512       1       7           1       0      30       4096        0
        malloc-512    512       3       5         512       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
         hostcache     96       1      41           1       0     126       4032        0
         malloc-32     32       4     122        1165       0     254       4032        0
         malloc-16     16       8     242          10       0     254       4000        0
         malloc-16     16       1     249          10       0     254       4000        0
       UMA Slabs 1    176       9      13           9       0      62       3872        0
              kenv    258       3      12        1013       0      30       3870        0
        malloc-384    384       1       9           1       0      30       3840        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      12      27          12       0       0       3744        0
              vmem   1856       1       1           1       0       8       3712        0
           SMR CPU     32       2      29           2       0     254        992        0
        SMR SHARED     24       2      29           2       0     254        744        0
       FFS1 dinode    128       0       0           0       0     126          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
        sctp_readq    152       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    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0      62          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    296       0       0           0       0       0          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
      tcp_log_node    120       0       0         160       0     126          0        0
    tcp_log_bucket    176       0       0          18       0      62          0        0
           tcp_log    416       0       0           0       0      30          0        0
          tcpreass     48       0       0           6       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          10       0     254          0        0
          syncache    168       0       0           4       0      62          0        0
             tcptw     88       0       0           0       0     126          0        0
               ipq     56       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
            AIOLIO    272       0       0           0       0      30          0        0
             AIOCB    488       0       0           0       0      30          0        0
              AIOP     32       0       0           0       0     254          0        0
               AIO    208       0       0           0       0      62          0        0
           DIRHASH   1024       0       0          34       0      16          0        0
        TMPFS node    224       0       0           0       0      62          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
           NCLNODE    592       0       0           0       0      16          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
    crypto_session     72       0       0           0       0     126          0        0
           cryptop    280       0       0           0       0      30          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0       1          0        0
     mbuf_jumbo_9k   9216       0       0           0       0       1          0        0
      audit_record   1280       0       0           0       0       8          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2632       0       0           0       0       4          0        0
            clpbuf   2632       0       0          21       0       4          0        0
            mdpbuf   2632       0       0           0       0       3          0        0
           nfspbuf   2632       0       0           0       0       4          0        0
            swwbuf   2632       0       0           0       0       4          0        0
            swrbuf   2632       0       0           0       0       4          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0         122       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0          44       0       1          0        0
      malloc-32768  32768       0       0         126       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0          28       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-4096   4096       0       0           2       0       2          0        0
       malloc-2048   2048       0       0           0       0       8          0        0
       malloc-1024   1024       0       0           0       0      16          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-384    384       0       0           1       0      30          0        0
        malloc-384    384       0       0           0       0      30          0        0
        malloc-384    384       0       0           0       0      30          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-16     16       0       0           7       0     254          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/01/02 18:09 freebsd de1aa3dab23c 79264ae3 console log report ci-freebsd-main
2020/10/16 09:56 freebsd 9cd6dd60d6e0 6e262c73 console log report ci-freebsd-main
* Struck through repros no longer work on HEAD.