syzbot


panic: mtx_unlock() of destroyed mutex at sys/netinet/sctp_usrreq.c:LINE

Status: auto-closed as invalid on 2021/07/22 05:50
Reported-by: syzbot+13740e6caa9ac6085a51@syzkaller.appspotmail.com
First crash: 1094d, last: 1094d

Sample crash report:
panic: mtx_unlock() of destroyed mutex @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_usrreq.c:2988
cpuid = 1
time = 1619156997
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00949a4750
vpanic() at vpanic+0x1c7/frame 0xfffffe00949a47b0
panic() at panic+0x43/frame 0xfffffe00949a4810
__mtx_unlock_flags() at __mtx_unlock_flags+0x1aa/frame 0xfffffe00949a4850
sctp_getopt() at sctp_getopt+0x4af2/frame 0xfffffe00949a4920
sctp_ctloutput() at sctp_ctloutput+0x258/frame 0xfffffe00949a4980
sogetopt() at sogetopt+0xf2/frame 0xfffffe00949a49f0
kern_getsockopt() at kern_getsockopt+0x140/frame 0xfffffe00949a4a70
sys_getsockopt() at sys_getsockopt+0x78/frame 0xfffffe00949a4ab0
ia32_syscall() at ia32_syscall+0x237/frame 0xfffffe00949a4bf0
int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0xfbffcf78
KDB: enter: panic
[ thread pid 7575 tid 107204 ]
Stopped at      kdb_enter+0x67: movq    $0,0x163b9ae(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                           0
rax                       0x12
rcx         0xfffffe0095200000
rdx                    0x3ffff
rbx                          0
rsp         0xfffffe00949a4730
rbp         0xfffffe00949a4750
rsi                    0x40001
rdi         0xffffffff811356e6  vprintf+0x176
r8                           0
r9          0x8080808080808080
r10         0xfffffe00949a4620
r11              0x1ff6bfff59c
r12         0xffffffff82267ac0  ddb_dbbe
r13                          0
r14         0xffffffff81a65969
r15         0xffffffff81a65969
rip         0xffffffff8112c6d7  kdb_enter+0x67
rflags                0x200086  kernload+0x86
kdb_enter+0x67: movq    $0,0x163b9ae(%rip)
db> show proc
Process 7575 (syz-executor.0) at 0xfffff80032cf7a70:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 783 at 0xfffff80004fe2a70
 ABI: FreeBSD ELF32
 flag: 0x10000080  flag2: 0
 arguments: /root/syz-executor.0
 reaper: 0xfffff80004518538 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe0094c25000
   (map 0xfffffe0094c25000)
   (map.pmap 0xfffffe0094c250c0)
   (pmap 0xfffffe0094c25120)
 threads: 3
100134                   RunQ                                syz-executor.0
107204                   Run     CPU 1                       syz-executor.0
107205                   Run     CPU 0                       syz-executor.0
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 7575   783   783     0  R       (threaded)                  syz-executor.0
100134                   RunQ                                syz-executor.0
107204                   Run     CPU 1                       syz-executor.0
107205                   Run     CPU 0                       syz-executor.0
 7574   798   798     0  R                                   syz-executor.2
 7571   802   802     0  R       (threaded)                  syz-executor.3
100110                   RunQ                                syz-executor.3
107198                   S       uwait   0xfffff8005b0efb80  syz-executor.3
 7570   784   784     0  RE                                  syz-executor.1
 6769  6763  6769     0  Ss      select  0xfffff800045149c0  dhclient
 6766     1  6766     0  Ss      select  0xfffff80004c382c0  dhclient
 6763  6755   436    65  S       select  0xfffff80004c38340  dhclient
 6755   436   436     0  S       wait    0xfffff80032df7538  sh
 6738     1  6738    65  Ss      select  0xfffff80004c383c0  dhclient
 1354     1  1354     0  Ss      select  0xfffff8003265ee40  dhclient
 1350     1  1350     0  Ss      select  0xfffff80004c38740  dhclient
 1320     1   783     0  S       uwait   0xfffff80004bfd200  syz-executor.0
 1318     1   783     0  S       uwait   0xfffff80032e79800  syz-executor.0
  802   780   802     0  Rs                                  syz-executor.3
  798   780   798     0  Rs                                  syz-executor.2
  784   780   784     0  Rs                                  syz-executor.1
  783   780   783     0  Ss      nanslp  0xffffffff8273b7e1  syz-executor.0
  780   778   778     0  R       (threaded)                  syz-fuzzer
100091                   S       uwait   0xfffff80004962580  syz-fuzzer
100115                   RunQ                                syz-fuzzer
100116                   S       uwait   0xfffff80004ccd900  syz-fuzzer
100117                   S       uwait   0xfffff80004ccda00  syz-fuzzer
100118                   S       uwait   0xfffff800324a6e80  syz-fuzzer
100119                   S       uwait   0xfffff80004ccdb00  syz-fuzzer
100120                   S       kqread  0xfffff80004628700  syz-fuzzer
100121                   RunQ                                syz-fuzzer
100600                   S       uwait   0xfffff80032e79b00  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffff80032666b20  csh
  776   694   776     0  Ss      select  0xfffff80004514040  sshd
  760     1   760     0  Ss+     ttyin   0xfffff800049cd4b0  getty
  759     1   759     0  Ss+     ttyin   0xfffff80004ce88b0  getty
  758     1   758     0  Ss+     ttyin   0xfffff80004ced0b0  getty
  757     1   757     0  Ss+     ttyin   0xfffff80004ced8b0  getty
  756     1   756     0  Ss+     ttyin   0xfffff80004cf10b0  getty
  755     1   755     0  Ss+     ttyin   0xfffff80004cf18b0  getty
  754     1   754     0  Ss+     ttyin   0xfffff80004c7a0b0  getty
  753     1   753     0  Ss+     ttyin   0xfffff80004c7a8b0  getty
  752     1   752     0  Ss+     ttyin   0xfffff80004c4d0b0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8273b7e0  cron
  694     1   694     0  Ss      select  0xfffff80004514440  sshd
  507     1   507     0  Ss      select  0xfffff800045144c0  syslogd
  436     1   436     0  Ss      wait    0xfffff800270ac538  devd
  435     1   435    65  Ss      select  0xfffff80004514640  dhclient
  350     1   350     0  Ss      select  0xfffff80004c38ac0  dhclient
  347     1   347     0  Ss      select  0xfffff80004514840  dhclient
   23     0     0     0  DL      syncer  0xffffffff8282ac50  [syncer]
   22     0     0     0  DL      vlruwt  0xfffff80004e87a70  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100080                   D       qsleep  0xffffffff82829d00  [bufdaemon]
100085                   D       -       0xffffffff8220ae00  [bufspacedaemon-0]
100099                   D       sdflush 0xfffff80004f0a8e8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff82851b08  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100078                   D       psleep  0xffffffff82845f78  [dom0]
100086                   D       launds  0xffffffff82845f84  [laundry: dom0]
100087                   D       umarcl  0xffffffff815bdd60  [uma]
   18     0     0     0  DL      -       0xffffffff8256fb78  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff82e8d818  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff8308c3c0  [pf purge]
   15     0     0     0  DL      -       0xffffffff8282735c  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8282735c  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8282735c  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8282735c  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100043                   D       -       0xffffffff82447040  [doneq0]
100044                   D       -       0xffffffff82446fc0  [async]
100077                   D       -       0xffffffff82446e90  [scanner]
   14     0     0     0  DL      seqstat 0xfffff800046d6488  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffff80004628d80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff80004628d30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff828434a0  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100034                   D       -       0xffffffff8271b020  [g_event]
100035                   D       -       0xffffffff8271b028  [g_up]
100036                   D       -       0xffffffff8271b030  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100027                   D       -       0xfffff80004147800  [thr_0]
100028                   D       -       0xfffff80004147880  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100010                   I                                   [swi5: fast taskq]
100015                   I                                   [swi6: task queue]
100017                   I                                   [swi6: Giant taskq]
100029                   I                                   [swi4: clock (0)]
100030                   I                                   [swi4: clock (1)]
100031                   I                                   [swi1: netisr 0]
100032                   I                                   [swi3: vm]
100045                   I                                   [irq24: virtio_pci0]
100046                   I                                   [irq25: virtio_pci0]
100047                   I                                   [irq26: virtio_pci0]
100048                   I                                   [irq27: virtio_pci0]
100049                   I                                   [irq28: virtio_pci1]
100050                   I                                   [irq29: virtio_pci1]
100051                   I                                   [irq30: virtio_pci1]
100052                   I                                   [irq31: virtio_pci1]
100053                   I                                   [irq32: virtio_pci1]
100058                   I                                   [irq10: virtio_pci2]
100060                   I                                   [irq1: atkbd0]
100061                   I                                   [irq12: psm0]
100062                   I                                   [swi0: uart uart++]
100070                   I                                   [swi1: pf send]
100083                   I                                   [swi1: hpts]
100084                   I                                   [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff80004518538  [init]
   10     0     0     0  DL      audit_w 0xffffffff828439b0  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8271b5b0  [swapper]
100005                   D       -       0xfffff8000456ae00  [if_config_tqg_0]
100006                   D       -       0xfffff8000456ad00  [softirq_0]
100007                   D       -       0xfffff8000456ac00  [softirq_1]
100008                   D       -       0xfffff8000456ab00  [if_io_tqg_0]
100009                   D       -       0xfffff8000456aa00  [if_io_tqg_1]
100011                   D       -       0xfffff80004406b00  [in6m_free taskq]
100012                   D       -       0xfffff80004406a00  [kqueue_ctx taskq]
100013                   D       -       0xfffff80004406900  [linuxkpi_irq_wq]
100014                   D       -       0xfffff80004406800  [inm_free taskq]
100016                   D       -       0xfffff80004406600  [aiod_kick taskq]
100018                   D       -       0xfffff80004406400  [thread taskq]
100019                   D       -       0xfffff80004406300  [linuxkpi_short_wq_0]
100020                   D       -       0xfffff80004406300  [linuxkpi_short_wq_1]
100021                   D       -       0xfffff80004406300  [linuxkpi_short_wq_2]
100022                   D       -       0xfffff80004406300  [linuxkpi_short_wq_3]
100023                   D       -       0xfffff80004406200  [linuxkpi_long_wq_0]
100024                   D       -       0xfffff80004406200  [linuxkpi_long_wq_1]
100025                   D       -       0xfffff80004406200  [linuxkpi_long_wq_2]
100026                   D       -       0xfffff80004406200  [linuxkpi_long_wq_3]
100033                   D       -       0xfffff80004406100  [firmware taskq]
100037                   D       -       0xfffff80004627e00  [crypto_0]
100038                   D       -       0xfffff80004627e00  [crypto_1]
100054                   D       -       0xfffff80004627b00  [vtnet0 rxq 0]
100055                   D       -       0xfffff80004627a00  [vtnet0 txq 0]
100056                   D       -       0xfffff80004627900  [vtnet0 rxq 1]
100057                   D       -       0xfffff80004627800  [vtnet0 txq 1]
100059                   D       vtbslp  0xfffff8000475c380  [virtio_balloon]
100063                   D       -       0xfffff80004627600  [mca taskq]
100066                   D       -       0xffffffff81e117e1  [deadlkres]
100072                   D       -       0xfffff80004c7fe00  [acpi_task_0]
100073                   D       -       0xfffff80004c7fe00  [acpi_task_1]
100074                   D       -       0xfffff80004c7fe00  [acpi_task_2]
100076                   D       -       0xfffff80004627c00  [CAM taskq]
db> show all locks
Process 7575 (syz-executor.0) thread 0xfffffe0094c8bc00 (107204)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe0094d681a0) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_usrreq.c:2972
Process 7574 (syz-executor.2) thread 0xfffffe0094d0e500 (106614)
exclusive rw vm object (vm object) r = 0 (0xfffff80032b05e70) locked @ /syzkaller/managers/i386/kernel/sys/vm/vm_fault.c:1332
shared sx vm map (user) (vm map (user)) r = 0 (0xfffffe0094e3b060) locked @ /syzkaller/managers/i386/kernel/sys/vm/vm_map.c:4960
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4216         4340K         4244
          tcp_hpts            5         3201K            5
             vtbuf           24         1968K           46
         sysctloid        31145         1826K        31212
              kobj          332         1328K          492
            newblk           10         1027K         7363
          vfscache            3         1025K            3
          inodedep          291          621K         6731
               pcb           85          605K        26899
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          136          269K         7652
            acpica         1674          184K        55406
         vnet_data            1          168K            1
          filedesc           20          153K        13330
           tidhash            3          141K            3
           pagedep           15          132K         6665
        tfo_ccache            1          128K            1
            DEVFS1          106          106K          123
               sem            4          106K            4
         sctp_timw          418          105K          418
            linker          287          101K          322
               bus          995           81K         3509
          mtx_pool            2           72K            2
            dirrem          276           69K         6658
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          507           64K          507
               BPF           30           53K           30
              umtx          342           43K          342
           kdtrace          212           42K        14782
          freefile          276           35K         6655
              temp           35           33K         2481
         hostcache            1           32K            1
               shm            1           32K            3
            DEVFS3          125           32K          135
               msg            4           30K            4
         sctp_stro           26           26K         6821
              vmem            3           26K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
         sctp_atcl           57           22K        26824
        DEVFS_RULE           56           20K           56
            ifaddr           69           20K           71
         ufs_mount            5           17K            6
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
           lltable           46           15K           53
            bus-sc           33           14K         1719
       ether_multi          157           13K          167
            KTRACE          100           13K          100
             ifnet            7           13K            7
              kenv           93           12K           93
      eventhandler          133           12K          133
              rman           84           10K          425
              GEOM           60           10K          488
         in6_multi           71            9K           71
              ksem            3            9K           26
         bmsafemap            2            9K         6705
              UART           12            9K           12
           devstat            4            9K            4
        sctp_socko            1            8K         4424
               rpc            2            8K            2
             shmfd            1            8K            7
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          236            8K          294
            sglist            5            7K            5
           CAM DEV            3            6K          510
            kqueue           62            6K         7584
         taskqueue           57            6K           57
            plimit           22            6K          364
              cred           22            6K          210
         CAM queue            5            6K         1528
       ufs_dirhash           24            5K           24
            DEVFSP           74            5K           78
               UMA          265            5K          265
          pf_ifnet           10            5K           19
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K           68
           pwddesc           59            4K         7576
          routetbl           23            4K           23
           acpisem           28            4K           28
           session           28            4K           49
         sctp_atky           83            4K        34367
             hhook           13            4K           13
       fpukern_ctx            3            3K            3
          terminal           11            3K           11
         proc-args           47            3K          614
             lockf           23            3K           36
             selfd           38            3K       111599
           uidinfo            3            3K            7
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
            ip6ndp           12            2K           15
          sctp_ifa           14            2K           15
            Unitno           30            2K           47
            diradd           13            2K         6693
            select           13            2K           43
           CAM XPT           22            2K          543
          in_multi            6            2K            8
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
          freework            5            2K         6682
           softdep            1            1K            1
             mkdir            8            1K        13296
          freeblks            4            1K         6655
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           22
      NFSD session            1            1K            1
         sctp_athm           57            1K        26825
        CAM periph            4            1K          271
          sctp_map           52            1K        13642
          sctp_ifn            6            1K           15
             ipsec            3            1K            3
               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
            crypto            4            1K            4
 encap_export_host           12            1K           12
         newdirblk            4            1K         6648
              pfil            4            1K            4
           CAM SIM            2            1K            2
              cdev            2            1K            2
       inpcbpolicy           13            1K          263
    chacha20random            1            1K            1
          procdesc            3            1K           14
               osd            3            1K           10
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            vnodes            1            1K            1
              ktls            1            1K            1
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K            6
            prison            6            1K            6
             linux            5            1K            6
        aesni_data            2            1K            2
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
            soname            5            1K        13437
          pmchooks            1            1K            1
          nexusdev            7            1K            7
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           38
          acpiintr            1            1K            1
               pmc            1            1K            1
          filecaps            3            1K           97
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
               iov            1            1K        18688
          p1003.1b            1            1K            1
          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
        sctp_mcore            0            0K            0
         sctp_iter            0            0K            7
         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            7
         sctp_aadr            0            0K            0
         sctp_stri            0            0K         4424
            mqdata            0            0K            0
       NFSD string            0            0K            0
       NFSD V4lock            0            0K            0
        madt_table            0            0K            2
          smartpqi            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
              iavf            0            0K            0
               ixl            0            0K            0
            DEVFS4            0            0K            0
            DEVFS2            0            0K            0
            gntdev            0            0K            0
       privcmd_dev            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
             axgbe            0            0K            0
        evtchn_dev            0            0K            0
          xenstore            0            0K            0
         ciss_data            0            0K            0
         BACKLIGHT            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
          xen_intr            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
           ath_hal            0            0K            0
            athdev            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
           ata_pci            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
               amr            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
            pvscsi            0            0K            0
           scsi_da            0            0K           69
     vm_fictitious            0            0K            0
            ata_da            0            0K            0
           scsi_ch            0            0K            0
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            statfs            0            0K         6836
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ag_tgt_map_t malloc            0            0K            0
ag_slr_map_t malloc            0            0K            0
lDevFlags * malloc            0            0K            0
tiDeviceHandle_t * malloc            0            0K            0
ag_portal_data_t malloc            0            0K            0
ag_device_t malloc            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320     957     1378399       0     254   37998592        0
              pbuf   2624       0     973           0       0       2    2553152        0
              mbuf    256    8742     798     2271883       0     254    2442240        0
          BUF TRIE    144     182   13286         750       0      62    1939392        0
        RADIX NODE    144   12549     356      217796       0      64    1858320        0
        malloc-384    384    4259      91       31026       0      30    1670400        0
       malloc-4096   4096     346       1        1120       0       2    1421312        0
        malloc-128    128   10191       8       10255       0     126    1305472        0
        malloc-384    384     290    2930        6730       0      30    1236480        0
         sctp_asoc   2288      27     513        6821       0     254    1235520        0
       UMA Slabs 0    112   10471       2       10471       0     126    1172976        0
      mbuf_cluster   2048     570       2         570       0     254    1171456        0
        malloc-256    256     454    2936        7504       0      62     867840        0
        malloc-256    256      13    3242       12281       0      62     833280        0
           sctp_ep   1280      31     488       13397       0     254     664320        0
         FFS inode   1160     508      24        7165       0       8     617120        0
        malloc-128    128     916    2959       21404       0     126     496000        0
      malloc-65536  65536       7       0           7       0       1     458752        0
        sctp_raddr    736      45     527       28958       0     254     420992        0
            lkpimm    160       1    2324           1       0      62     372000        0
          lkpicurr    160       2    2323           2       0      62     372000        0
         VM OBJECT    264    1210      65      108184       0      30     336600        0
        256 Bucket   2048     143      15       18346       0       8     323584        0
            THREAD   1792     151      20        7205       0       8     306432        0
             VNODE    448     545      85        7204       0      30     282240        0
      malloc-16384  16384      12       5        6665       0       2     278528        0
            socket    944      30     254       14833       0     254     268096        0
       malloc-4096   4096      60       4        7576       0       2     262144        0
            DEVCTL   1024       8     208         131       0       0     221184        0
         malloc-64     64    3284      55        3303       0     254     213696        0
       malloc-1024   1024     163      41        6993       0      16     208896        0
         malloc-16     16   12907      93       12998       0     254     208000        0
      malloc-65536  65536       2       1          10       0       1     196608        0
         UMA Zones    768     237       2         237       0      16     183552        0
         MAP ENTRY     96    1544     304      404706       0     126     177408        0
        malloc-128    128    1303      30       26382       0     126     170624        0
         malloc-32     32    4891     149        4923       0     254     161280        0
       malloc-2048   2048      36      42       16276       0       8     159744        0
       mbuf_packet    256      93     477       16233       0     254     145920        0
       FFS2 dinode    256     508      32        7163       0      62     138240        0
       S VFS Cache    104    1012     314        7749       0     126     137904        0
      malloc-65536  65536       0       2          98       0       1     131072        0
      malloc-65536  65536       0       2         136       0       1     131072        0
         vmem btag     56    2258      34        2258       0     254     128352        0
        malloc-256    256     464      16         894       0      62     122880        0
          ksiginfo    112      60     984         940       0     126     116928        0
           VMSPACE   2544      37       8        7559       0       4     114480        0
        128 Bucket   1024      73      30        2252       0      16     105472        0
              PROC   1336      59      16        7575       0       8     100200        0
        malloc-256    256     273     117        7457       0      62      99840        0
         64 Bucket    512     157      27        5934       0      30      94208        0
        malloc-128    128     410     272        9861       0     126      87296        0
        sctp_chunk    152      26     546       22141       0     254      86944        0
          UMA Kegs    384     222       1         222       0      30      85632        0
            clpbuf   2624       0      32          28       0      16      83968        0
         filedesc0   1072      59      18        7576       0       8      82544        0
       malloc-8192   8192       8       1          10       0       1      73728        0
      malloc-32768  32768       2       0           2       0       1      65536        0
      malloc-32768  32768       0       2         130       0       1      65536        0
      malloc-16384  16384       3       1           9       0       1      65536        0
       malloc-8192   8192       5       3          33       0       1      65536        0
             g_bio    408       0     160        5842       0      30      65280        0
         32 Bucket    256     154      86       11634       0      62      61440        0
         malloc-64     64     409     536       19210       0     254      60480        0
        sctp_readq    152       1     389        1603       0     254      59280        0
        malloc-256    256      72     138       13781       0      62      53760        0
       malloc-4096   4096      12       1          23       0       2      53248        0
       malloc-4096   4096      10       2          14       0       2      49152        0
         malloc-64     64     640     116       16494       0     254      48384        0
        malloc-128    128     333      39        7120       0     126      47616        0
       malloc-4096   4096       4       6        6840       0       2      40960        0
            pcpu-8      8    4599     521        4755       0     254      40960        0
         malloc-64     64     102     528      119193       0     254      40320        0
         malloc-64     64     532      98        8556       0     254      40320        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36       40500       0      16      36864        0
        malloc-512    512       3      69         511       0      30      36864        0
        malloc-512    512       2      70        4426       0      30      36864        0
             Files     80     207     243       26508       0     126      36000        0
        malloc-256    256      69      66       27066       0      62      34560        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       0       2         170       0       1      32768        0
           pcpu-64     64     478      34         478       0     254      32768        0
        malloc-384    384      76       4          76       0      30      30720        0
              pipe    744      21      14         409       0      16      26040        0
         TURNSTILE    136     172      17         172       0      62      25704        0
       malloc-8192   8192       2       1           3       0       1      24576        0
       malloc-8192   8192       1       2         102       0       1      24576        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-2048   2048      10       2         201       0       8      24576        0
               PWD     32      20     736        6738       0     254      24192        0
             KNOTE    160      28     122      453047       0      62      24000        0
            ttyinq    160     135      15         300       0      62      24000        0
          8 Bucket     80      42     258        2532       0     126      24000        0
        malloc-128    128     153      33        6041       0     126      23808        0
             tcpcb   1048       4      18          20       0     254      23056        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-256    256      42      48         171       0      62      23040        0
       malloc-4096   4096       2       3           6       0       2      20480        0
       malloc-2048   2048       7       3          15       0       8      20480        0
       malloc-1024   1024       5      15          45       0      16      20480        0
         malloc-32     32     151     479       27434       0     254      20160        0
        malloc-128    128       8     147         262       0     126      19840        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-384    384      45       5          55       0      30      19200        0
        SLEEPQUEUE     88     172      20         172       0     126      16896        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-2048   2048       7       1           7       0       8      16384        0
       malloc-1024   1024       7       9        1115       0      16      16384        0
       malloc-1024   1024      10       6         169       0      16      16384        0
         malloc-64     64      93     159         548       0     254      16128        0
         malloc-32     32     325     179        2467       0     254      16128        0
         16 Bucket    144      43      69         322       0      62      16128        0
      vtnet_tx_hdr     24       0     668      691290       0     254      16032        0
       malloc-2048   2048       2       4          39       0       8      12288        0
       malloc-1024   1024       5       7          18       0      16      12288        0
       malloc-1024   1024       7       5           7       0      16      12288        0
        malloc-512    512       1      23         119       0      30      12288        0
         malloc-16     16     316     434         586       0     254      12000        0
         malloc-16     16     145     605       40551       0     254      12000        0
         udp_inpcb    488       2      22         197       0     254      11712        0
              kenv    258      15      30        1059       0      30      11610        0
        malloc-384    384      12      18          12       0      30      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-2048   2048       1       3          13       0       8       8192        0
       malloc-2048   2048       0       4          40       0       8       8192        0
        malloc-512    512      10       6          89       0      30       8192        0
           rtentry    176      31      15          35       0      62       8096        0
              PGRP     88      28      64          49       0     126       8096        0
          rl_entry     40      41     161          41       0     254       8080        0
sctp_stream_msg_out    112       0      72        1638       0     254       8064        0
        sctp_laddr     48       0     168        1938       0     254       8064        0
             udpcb     32       2     250         213       0     254       8064        0
         malloc-64     64      10     116          10       0     254       8064        0
         malloc-64     64       7     119          44       0     254       8064        0
         malloc-32     32       7     245         650       0     254       8064        0
         malloc-32     32      82     170        1003       0     254       8064        0
         malloc-32     32      35     217        5048       0     254       8064        0
         malloc-32     32      28     224          73       0     254       8064        0
          4 Bucket     48       6     162         308       0     254       8064        0
          2 Bucket     32      57     195        1551       0     254       8064        0
         malloc-16     16       3     497       11384       0     254       8000        0
         malloc-16     16     194     306        1450       0     254       8000        0
         malloc-16     16      25     475       26365       0     254       8000        0
         malloc-16     16      21     479          21       0     254       8000        0
        malloc-128    128       8      54          10       0     126       7936        0
             ripcb    488       7       9          30       0     254       7808        0
     udplite_inpcb    488       0      16          16       0     254       7808        0
         tcp_inpcb    488       4      12          20       0     254       7808        0
     routing nhops    256      27       3          35       0      62       7680        0
             unpcb    256      14      16        1143       0     254       7680        0
        malloc-384    384       1      19           7       0      30       7680        0
        malloc-384    384       1      19          32       0      30       7680        0
        malloc-384    384       0      20         346       0      30       7680        0
        malloc-256    256       8      22         342       0      62       7680        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       7      55           7       0     126       6448        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-4096   4096       0       1           2       0       2       4096        0
       malloc-4096   4096       1       0           1       0       2       4096        0
        malloc-512    512       1       7           1       0      30       4096        0
        malloc-512    512       8       0           9       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
         malloc-32     32      79      47          79       0     254       4032        0
         malloc-16     16      10     240          10       0     254       4000        0
       UMA Slabs 1    176       9      13           9       0      62       3872        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       3      60           3       0     254       2016        0
        SMR SHARED     24       3      60           3       0     254       1512        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
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    296       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
       tcp_bbr_pcb    832       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
      tcp_rack_pcb    704       0       0           0       0      16          0        0
      tcp_rack_map    120       0       0           0       0     126          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
           tcp_log    416       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
             tcptw     88       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
            itimer    352       0       0           0       0      30          0        0
            AIOLIO    272       0       0           0       0      30          0        0
             AIOCB    552       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
        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
        TMPFS node    224       0       0           0       0      62          0        0
           NCLNODE    584       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
           cryptop    280       0       0           0       0      30          0        0
  linux_dma_object     24       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
         domainset     40       0       0           0       0     254          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-2048   2048       0       0           0       0       8          0        0
       malloc-1024   1024       0       0           0       0      16          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
           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 (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/04/23 05:50 freebsd-src 2183bfcce46b 590921a5 console log report ci-freebsd-i386 panic: mtx_unlock() of destroyed mutex at sys/netinet/sctp_usrreq.c:LINE
* Struck through repros no longer work on HEAD.