syzbot


panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/main/kernel/sys/kern/uipc_socket.c:LINE

Status: closed as dup on 2021/09/19 22:31
Reported-by: syzbot+c848ad3446522657d89e@syzkaller.appspotmail.com
First crash: 1211d, last: 1211d
Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/main/kernel/sys/netinet/tcp_output.c:LINE syz 707 1193d 2078d

Sample crash report:
panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/main/kernel/sys/kern/uipc_socket.c:4052
cpuid = 1
time = 1627587553
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe00077f23f0
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe00077f2550
vpanic() at vpanic+0x2c5/frame 0xfffffe00077f2630
panic() at panic+0xb5/frame 0xfffffe00077f26f0
__mtx_lock_flags() at __mtx_lock_flags+0x2f9/frame 0xfffffe00077f27d0
soisconnected() at soisconnected+0x16f/frame 0xfffffe00077f2870
sctp_handle_cookie_echo() at sctp_handle_cookie_echo+0x2ced/frame 0xfffffe00077f2bd0
sctp_process_control() at sctp_process_control+0x2d78/frame 0xfffffe00077f3300
sctp_common_input_processing() at sctp_common_input_processing+0xb26/frame 0xfffffe00077f3560
sctp6_input_with_port() at sctp6_input_with_port+0x5a1/frame 0xfffffe00077f3730
sctp6_input() at sctp6_input+0x1f/frame 0xfffffe00077f3750
ip6_input() at ip6_input+0x2531/frame 0xfffffe00077f39b0
swi_net() at swi_net+0x2e5/frame 0xfffffe00077f3a50
ithread_loop() at ithread_loop+0x4f1/frame 0xfffffe00077f3bb0
fork_exit() at fork_exit+0xd0/frame 0xfffffe00077f3bf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00077f3bf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100031 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28eac8a(%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         0x1ef32cf57ebcbc66
rdx                        0x1
rbx                          0
rsp         0xfffffe00077f2530
rbp         0xfffffe00077f2550
rsi                          0
rdi         0xffffffff817ab589  vprintf+0x319
r8                         0x3
r9          0xfffffe00077f2068
r10                          0
r11                       0xbf
r12         0xfffffe0053dfe740
r13         0xfffffe00077f2501
r14         0xffffffff82c5c820  .str.18
r15         0xffffffff82c5c820  .str.18
rip         0xffffffff8179efab  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28eac8a(%rip)
db> show proc
Process 12 (intr) at 0xfffffe0053deea70:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff8402b000
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff8402b000 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff8402bf80
   (map 0xffffffff8402bf80)
   (map.pmap 0xffffffff8402c040)
   (pmap 0xffffffff8402c0a0)
 threads: 23
100011                   I                                   [swi6: task queue]
100012                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100031                   Run     CPU 1                       [swi1: netisr 0]
100032                   I                                   [swi3: vm]
100033                   I                                   [swi4: clock (0)]
100034                   I                                   [swi4: clock (1)]
100035                   I                                   [swi1: hpts]
100036                   I                                   [swi1: hpts]
100049                   I                                   [irq24: virtio_pci0]
100050                   I                                   [irq25: virtio_pci0]
100051                   I                                   [irq26: virtio_pci0]
100052                   I                                   [irq27: virtio_pci0]
100053                   I                                   [irq28: virtio_pci1]
100054                   I                                   [irq29: virtio_pci1]
100055                   I                                   [irq30: virtio_pci1]
100056                   I                                   [irq31: virtio_pci1]
100057                   I                                   [irq32: virtio_pci1]
100062                   I                                   [irq10: virtio_pci2]
100064                   I                                   [irq1: atkbd0]
100065                   I                                   [irq12: psm0]
100066                   I                                   [swi0: uart uart++]
100074                   I                                   [swi1: pf send]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  803   783   783     0  R       (threaded)                  syz-executor.0
100094                   S       nanslp  0xffffffff84056b40  syz-executor.0
100133                   RunQ                                syz-executor.0
100134                   S       uwait   0xfffffe009e9c2c80  syz-executor.0
  802   800   436     0  R                                   kenv
  800   436   436     0  S       wait    0xfffffe0058b21538  sh
  793   780   778     0  R                                   syz-executor.3
  789   780   778     0  R                                   syz-executor.2
  784   780   778     0  D       devfsmo 0xfffffe0057450e20  syz-executor.1
  783   780   783     0  Ss      nanslp  0xffffffff84056b40  syz-executor.0
  780   778   778     0  S       (threaded)                  syz-fuzzer
100093                   S       uwait   0xfffffe005876c880  syz-fuzzer
100125                   S       uwait   0xfffffe0058351000  syz-fuzzer
100126                   S       uwait   0xfffffe0058351100  syz-fuzzer
100127                   S       uwait   0xfffffe0058351200  syz-fuzzer
100128                   S       uwait   0xfffffe0058351300  syz-fuzzer
100129                   S       uwait   0xfffffe009e2e7300  syz-fuzzer
100130                   S       uwait   0xfffffe009e2e7400  syz-fuzzer
100131                   S       uwait   0xfffffe009e2e7d00  syz-fuzzer
100132                   S       kqread  0xfffffe009e496100  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffffe00587650b0  csh
  776   694   776     0  Ss      select  0xfffffe00588332c0  sshd
  760     1   760     0  Ss+     ttyin   0xfffffe0056ff18b0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe00575e64b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00575e6cb0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00583ee4b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00583eecb0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00583eb4b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00583ebcb0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00583954b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe0058395cb0  getty
  698     1   698     0  Ss      nanslp  0xffffffff84056b41  cron
  694     1   694     0  Ss      select  0xfffffe009e48fb40  sshd
  507     1   507     0  Ds      bo_wwai 0xfffffe009e46b4e8  syslogd
  436     1   436     0  Ss      wait    0xfffffe0058b5da70  devd
  435     1   435    65  Ss      select  0xfffffe009e2e93c0  dhclient
  350     1   350     0  Ss      select  0xfffffe0058835b40  dhclient
  347     1   347     0  Ss      select  0xfffffe0057539d40  dhclient
   23     0     0     0  DL      syncer  0xffffffff8417eb00  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe0058765a70  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100084                   D       qsleep  0xffffffff8417c940  [bufdaemon]
100087                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100100                   D       sdflush 0xfffffe005753cce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841b4dc0  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100082                   D       psleep  0xffffffff841a88f8  [dom0]
100088                   D       launds  0xffffffff841a8904  [laundry: dom0]
100089                   D       umarcl  0xffffffff81e96be0  [uma]
   18     0     0     0  DL      -       0xffffffff83e0dc60  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff84cf5460  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff8475de20  [pf purge]
   15     0     0     0  DL      -       0xffffffff84177dc0  [soaiod4]
    9     0     0     0  DL      -       0xffffffff84177dc0  [soaiod3]
    8     0     0     0  DL      -       0xffffffff84177dc0  [soaiod2]
    7     0     0     0  DL      -       0xffffffff84177dc0  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100047                   D       -       0xffffffff83c933c0  [doneq0]
100048                   D       -       0xffffffff83c93340  [async]
100081                   D       -       0xffffffff83c931c0  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056ab1c88  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe00541acd80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe00541acd30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff841a29a0  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100038                   D       -       0xffffffff8402a100  [g_event]
100039                   D       -       0xffffffff8402a140  [g_up]
100040                   D       -       0xffffffff8402a180  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100029                   D       -       0xfffffe0053e16e00  [thr_0]
100030                   D       -       0xfffffe0053e16e80  [thr_1]
   12     0     0     0  RL      (threaded)                  [intr]
100011                   I                                   [swi6: task queue]
100012                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100031                   Run     CPU 1                       [swi1: netisr 0]
100032                   I                                   [swi3: vm]
100033                   I                                   [swi4: clock (0)]
100034                   I                                   [swi4: clock (1)]
100035                   I                                   [swi1: hpts]
100036                   I                                   [swi1: hpts]
100049                   I                                   [irq24: virtio_pci0]
100050                   I                                   [irq25: virtio_pci0]
100051                   I                                   [irq26: virtio_pci0]
100052                   I                                   [irq27: virtio_pci0]
100053                   I                                   [irq28: virtio_pci1]
100054                   I                                   [irq29: virtio_pci1]
100055                   I                                   [irq30: virtio_pci1]
100056                   I                                   [irq31: virtio_pci1]
100057                   I                                   [irq32: virtio_pci1]
100062                   I                                   [irq10: virtio_pci2]
100064                   I                                   [irq1: atkbd0]
100065                   I                                   [irq12: psm0]
100066                   I                                   [swi0: uart uart++]
100074                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0053d51538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841a3940  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8402b000  [swapper]
100005                   D       -       0xfffffe00081f1900  [softirq_0]
100006                   D       -       0xfffffe00081f1700  [softirq_1]
100007                   D       -       0xfffffe00081f1500  [if_io_tqg_0]
100008                   D       -       0xfffffe00081f1300  [if_io_tqg_1]
100009                   D       -       0xfffffe00081f1100  [if_config_tqg_0]
100010                   D       -       0xfffffe0053dede00  [deferred_unmount ta]
100013                   D       -       0xfffffe0053ded800  [thread taskq]
100015                   D       -       0xfffffe0053ded400  [linuxkpi_irq_wq]
100016                   D       -       0xfffffe0053ded200  [kqueue_ctx taskq]
100017                   D       -       0xfffffe0053ded000  [aiod_kick taskq]
100018                   D       -       0xfffffe0053df7d00  [pci_hp taskq]
100019                   D       -       0xfffffe0053df7b00  [inm_free taskq]
100020                   D       -       0xfffffe0053df7900  [in6m_free taskq]
100021                   D       -       0xfffffe0053df7700  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0053df7700  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0053df7700  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0053df7700  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0053df7200  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0053df7200  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0053df7200  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0053df7200  [linuxkpi_long_wq_3]
100037                   D       -       0xfffffe0053e02400  [firmware taskq]
100041                   D       -       0xfffffe0054181500  [crypto_0]
100042                   D       -       0xfffffe0054181500  [crypto_1]
100058                   D       -       0xfffffe0056a57100  [vtnet0 rxq 0]
100059                   D       -       0xfffffe0056a57000  [vtnet0 txq 0]
100060                   D       -       0xfffffe0056ec1e00  [vtnet0 rxq 1]
100061                   D       -       0xfffffe0056ec1d00  [vtnet0 txq 1]
100063                   D       vtbslp  0xfffffe0056fd6e80  [virtio_balloon]
100067                   D       -       0xfffffe0056ff6d00  [mca taskq]
100072                   D       -       0xffffffff82c637a0  [deadlkres]
100077                   D       -       0xfffffe0054181e00  [acpi_task_0]
100078                   D       -       0xfffffe0054181e00  [acpi_task_1]
100079                   D       -       0xfffffe0054181e00  [acpi_task_2]
100080                   D       -       0xfffffe0056a57800  [CAM taskq]
db> show all locks
Process 802 (kenv) thread 0xfffffe0058b4a000 (100114)
exclusive sleep mutex vnode interlock (vnode interlock) r = 0 (0xfffffe0058b0db18) locked @ /syzkaller/managers/main/kernel/sys/ufs/ufs/ufs_vnops.c:321
shared lockmgr ufs (ufs) r = 0 (0xfffffe0058b0daf0) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_vnops.c:534
Process 789 (syz-executor.2) thread 0xfffffe0058932740 (100104)
exclusive sx devfsmount (devfsmount) r = 0 (0xfffffe0057450e20) locked @ /syzkaller/managers/main/kernel/sys/fs/devfs/devfs_vnops.c:347
shared lockmgr devfs (devfs) r = 0 (0xfffffe0058778e70) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_subr.c:6525
Process 784 (syz-executor.1) thread 0xfffffe0058b4a720 (100113)
shared lockmgr devfs (devfs) r = 0 (0xfffffe0058778e70) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_subr.c:6525
Process 507 (syslogd) thread 0xfffffe0058b4b560 (100111)
exclusive lockmgr ufs (ufs) r = 0 (0xfffffe009e46b3f0) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_syscalls.c:3541
Process 12 (intr) thread 0xfffffe0053dfe740 (100031)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe00a0c0ac70) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_input.c:2357
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4216         4338K         4244
          tcp_hpts            6         3201K            6
         sysctloid        34320         2027K        34390
             vtbuf           24         1968K           46
              kobj          326         1304K          485
            newblk           34         1033K          638
          vfscache            3         1025K            3
               pcb           26          539K           77
          inodedep           20          520K           91
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          108          222K          862
            acpica         1674          184K        54712
         vnet_data            1          168K            1
              vmem            3          146K            4
           tidhash            3          141K            3
            linker          356          140K          387
           pagedep           11          131K           28
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          104          104K          115
          filedesc           12           89K           27
               bus          984           80K         3475
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          509           64K          509
           kdtrace          185           37K          939
              umtx          286           36K          286
              temp           23           33K         1722
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          123           31K          133
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
               BPF           11           18K           11
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
            bus-sc           33           14K         1692
            ifaddr           39           13K           41
            KTRACE          100           13K          100
              kenv           95           12K           95
      eventhandler          133           12K          133
          routetbl           62           11K          222
         CAM queue            5           11K         1528
              GEOM           61           10K          489
              rman           84           10K          425
         bmsafemap            2            9K           59
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K            1
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          236            8K          294
         taskqueue           63            7K           63
             ifnet            4            7K            4
            sglist            5            7K            5
           CAM DEV            3            6K          510
           lltable           19            6K           19
              cred           22            6K          195
       ether_multi           68            6K           78
            kqueue           52            6K          808
            plimit           20            5K          316
       ufs_dirhash           24            5K           24
               UMA          270            5K          270
         in6_multi           35            5K           35
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          pf_ifnet            7            4K           10
           acpisem           28            4K           28
             hhook           15            4K           17
           pwddesc           50            4K          804
       fpukern_ctx            3            3K            3
          terminal           11            3K           11
            diradd           21            3K           56
           session           20            3K           30
         proc-args           42            3K          511
             mkdir           18            3K           34
           uidinfo            3            3K            7
        local_apic            1            2K            1
           io_apic            1            2K            1
          indirdep            8            2K           10
         ipsec-saq            2            2K            2
           CAM CCB            1            2K         1879
            Unitno           27            2K           41
           CAM XPT           22            2K          543
             lockf           15            2K           22
            DEVFSP           23            2K           28
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
            ip6ndp            7            2K            8
             selfd           19            2K        18731
         sctp_atcl            3            2K            3
               msi            9            2K            9
         newdirblk            9            2K           17
             clone            9            2K            9
          kcovinfo           18            2K           19
         sctp_stro            1            1K            1
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
       vnodemarker            2            1K           20
      NFSD session            1            1K            1
          sctp_ifa            7            1K            8
        CAM periph            4            1K          271
            select            7            1K           26
             ipsec            3            1K            3
          in_multi            3            1K            5
             nhops            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
         sctp_stri            1            1K            2
              pfil            4            1K            4
              cdev            2            1K            2
               osd            8            1K           21
          sctp_ifn            3            1K            8
               mld            3            1K            3
              igmp            3            1K            3
    chacha20random            1            1K            1
       inpcbpolicy           11            1K          140
               tun            4            1K            4
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            vnodes            1            1K            1
           CAM SIM            2            1K            2
              ktls            1            1K            1
            feeder            7            1K            7
         sctp_atky            4            1K            4
           tcpfunc            3            1K            3
        loginclass            3            1K            6
            prison            6            1K            6
       lkpikmalloc            5            1K            6
        aesni_data            2            1K            2
            soname            5            1K         3439
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
             xform            2            1K           42
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          procdesc            1            1K            6
          pmchooks            1            1K            1
          nexusdev            7            1K            7
          sctp_vrf            1            1K            1
          freework            1            1K           26
              vnet            1            1K            1
           entropy            2            1K           37
          acpiintr            1            1K            1
               pmc            1            1K            1
         sctp_athm            3            1K            3
          sctp_map            2            1K            2
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
          filecaps            1            1K           66
        dctcp data            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K            0
         sctp_iter            0            0K            6
         sctp_mvrf            0            0K            0
         sctp_timw            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K            6
         sctp_aadr            0            0K            0
            tcp_do            0            0K            0
           tcp_fsb            0            0K            0
            mqdata            0            0K            0
          cdg data            0            0K            0
        cubic data            0            0K            0
         htcp data            0            0K            0
        vegas data            0            0K            0
          chd data            0            0K            0
          pf_table            0            0K            0
           pf_rule            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
           pf_temp            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320     965      590422       0     254   38031360        0
              pbuf   2624       0     973           0       0       2    2553152        0
              mbuf    256    8590     965      886239       0     254    2446080        0
          BUF TRIE    144     182   11578         533       0      62    1693440        0
        malloc-384    384    4117      13        4118       0      30    1585920        0
        malloc-128    128   11333     230       11746       0     126    1480064        0
       malloc-4096   4096     346       1         517       0       2    1421312        0
       UMA Slabs 0    112   10125      24       10125       0     126    1136688        0
        RADIX NODE    144    7656     151       41659       0      62    1124208        0
         vmem btag     56   15476     123       15476       0     254     873544        0
         FFS inode   1160     500      18         526       0       8     600880        0
            lkpimm    160       1    2324           1       0      62     372000        0
          lkpicurr    160       2    2323           2       0      62     372000        0
        256 Bucket   2048     117      31       13842       0      10     303104        0
         malloc-64     64    3863     547       22619       0     254     282240        0
      malloc-65536  65536       4       0           4       0       1     262144        0
            THREAD   1808     134       9         134       0       8     258544        0
             VNODE    448     533      34         561       0      30     254016        0
         VM OBJECT    264     949      11       12953       0      30     253440        0
       malloc-4096   4096      53       3        1620       0       2     229376        0
         malloc-16     16   13990     260       14055       0     254     228000        0
            DEVCTL   1024       2     218         131       0       0     225280        0
        malloc-256    256     224     571         953       0      62     203520        0
      malloc-65536  65536       3       0           3       0       1     196608        0
         UMA Zones    768     242       2         242       0      16     187392        0
         malloc-32     32    5348     196        5379       0     254     177408        0
        malloc-128    128    1167      73       25573       0     126     158720        0
       FFS2 dinode    256     500      25         526       0      62     134400        0
      malloc-65536  65536       0       2         136       0       1     131072        0
      malloc-65536  65536       0       2          50       0       1     131072        0
       malloc-1024   1024     121       7         132       0      16     131072        0
          ksiginfo    112      42    1002        1431       0     126     116928        0
       S VFS Cache    104    1001      52        1037       0     126     109512        0
         MAP ENTRY     96     979     155       38698       0     126     108864        0
      malloc-16384  16384       6       0          12       0       1      98304        0
       malloc-2048   2048      10      38        1888       0       8      98304        0
      mbuf_cluster   2048      45       1          45       0     254      94208        0
        malloc-128    128     651      62        3998       0     126      91264        0
          UMA Kegs    384     227       6         227       0      30      89472        0
            clpbuf   2624       0      32          21       0      16      83968        0
       malloc-8192   8192       7       3          35       0       1      81920        0
           VMSPACE   2544      27       3         782       0       4      76320        0
              PROC   1336      49       8         803       0       8      76152        0
       malloc-2048   2048       7      29         514       0       8      73728        0
        malloc-256    256     229      56         513       0      62      72960        0
         filedesc0   1072      50      13         804       0       8      67536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       0       1           8       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-32768  32768       0       2         130       0       1      65536        0
             g_bio    408       4     156        4960       0      30      65280        0
        128 Bucket   1024      43      12         617       0      16      56320        0
        malloc-128    128     329      74         883       0     126      51584        0
      malloc-16384  16384       3       0           3       0       1      49152        0
      malloc-16384  16384       3       0          18       0       1      49152        0
       malloc-8192   8192       4       2         105       0       1      49152        0
       malloc-8192   8192       6       0           6       0       1      49152        0
       malloc-1024   1024       9      35         561       0      16      45056        0
         malloc-64     64     535     158        1867       0     254      44352        0
        malloc-128    128     298      43         359       0     126      43648        0
         32 Bucket    256      49     116        3142       0      62      42240        0
           DIRHASH   1024      34       6          34       0      16      40960        0
         64 Bucket    512      69      11        1857       0      30      40960        0
             NAMEI   1024       2      34       12468       0      16      36864        0
            pcpu-8      8    4343     265        4403       0     254      36864        0
         malloc-64     64     505      62        1451       0     254      36288        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-16384  16384       0       2         160       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
         malloc-64     64     123     381        2235       0     254      32256        0
        malloc-256    256      94      26        1600       0      62      30720        0
            socket    944      21      11        1329       0     254      30208        0
       malloc-4096   4096       4       3           9       0       2      28672        0
        malloc-384    384      60      10          60       0      30      26880        0
        malloc-384    384      32      38         135       0      30      26880        0
       malloc-4096   4096       5       1           7       0       2      24576        0
    ertt_txseginfo     40       0     606        2353       0     254      24240        0
         malloc-64     64     307      71         342       0     254      24192        0
             KNOTE    160      34     116       31406       0      62      24000        0
            ttyinq    160     135      15         300       0      62      24000        0
          8 Bucket     80      40     260         955       0     126      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-384    384      58       2         405       0      30      23040        0
         TURNSTILE    136     144      24         144       0      62      22848        0
       malloc-2048   2048       5       5          35       0       8      20480        0
       malloc-1024   1024      15       5          40       0      16      20480        0
         16 Bucket    144      38     102         296       0      62      20160        0
        malloc-128    128     119      36         619       0     126      19840        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-384    384      44       6          46       0      30      19200        0
              pipe    744      19       6         299       0      16      18600        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       1       1           3       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-2048   2048       5       3          20       0       8      16384        0
       malloc-1024   1024       9       7          10       0      16      16384        0
         malloc-32     32      65     439         610       0     254      16128        0
      vtnet_tx_hdr     24       0     668      292086       0     254      16032        0
             tcpcb   1080       4      10          10       0     254      15120        0
        SLEEPQUEUE     88     144      16         144       0     126      14080        0
       malloc-2048   2048       2       4         193       0       8      12288        0
       malloc-1024   1024       7       5           7       0      16      12288        0
        malloc-512    512      13      11          73       0      30      12288        0
         malloc-64     64      77     112       13467       0     254      12096        0
         malloc-32     32     245     133         341       0     254      12096        0
         malloc-32     32      31     347        1204       0     254      12096        0
             Files     80     130      20        6667       0     126      12000        0
         udp_inpcb    496       6      18         126       0     254      11904        0
        malloc-128    128      82      11          90       0     126      11904        0
              kenv    258      15      30        1027       0      30      11610        0
       mbuf_packet    256       2      43         115       0     254      11520        0
        malloc-384    384      22       8          22       0      30      11520        0
        malloc-256    256      20      25         335       0      62      11520        0
         sctp_asoc   2288       1       4           1       0     254      11440        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       1       1           2       0       2       8192        0
       malloc-4096   4096       2       0           2       0       2       8192        0
       malloc-4096   4096       0       2           3       0       2       8192        0
       malloc-2048   2048       2       2           2       0       8       8192        0
       malloc-2048   2048       3       1          16       0       8       8192        0
       malloc-2048   2048       1       3          41       0       8       8192        0
       malloc-1024   1024       4       4         164       0      16       8192        0
       malloc-1024   1024       3       5         926       0      16       8192        0
        malloc-512    512       3      13          21       0      30       8192        0
        malloc-512    512       3      13           3       0      30       8192        0
        malloc-512    512       0      16         118       0      30       8192        0
        malloc-512    512       4      12           4       0      30       8192        0
        malloc-512    512       0      16          11       0      30       8192        0
        sctp_raddr    736       1      10           1       0     254       8096        0
           rtentry    176      17      29          21       0      62       8096        0
              PGRP     88      20      72          30       0     126       8096        0
          rl_entry     40      37     165          37       0     254       8080        0
             udpcb     32       6     246         126       0     254       8064        0
              ertt     72       4     108          10       0     126       8064        0
               PWD     32      15     237         105       0     254       8064        0
         malloc-64     64      37      89          42       0     254       8064        0
         malloc-64     64      54      72          78       0     254       8064        0
         malloc-32     32     101     151         173       0     254       8064        0
         malloc-32     32      38     214         757       0     254       8064        0
         malloc-32     32      47     205          78       0     254       8064        0
         malloc-32     32      58     194        2862       0     254       8064        0
          4 Bucket     48       5     163          47       0     254       8064        0
          2 Bucket     32      51     201         511       0     254       8064        0
         malloc-16     16       7     493          21       0     254       8000        0
         malloc-16     16      24     476         172       0     254       8000        0
         malloc-16     16      52     448         278       0     254       8000        0
         malloc-16     16     199     301        1430       0     254       8000        0
         malloc-16     16      35     465          52       0     254       8000        0
         malloc-16     16     277     223       25124       0     254       8000        0
         malloc-16     16      24     476          76       0     254       8000        0
             ripcb    496       1      15           4       0     254       7936        0
         tcp_inpcb    496       4      12          10       0     254       7936        0
        malloc-128    128      28      34          32       0     126       7936        0
     routing nhops    256      14      16          21       0      62       7680        0
             unpcb    256       8      22        1169       0     254       7680        0
        malloc-384    384       4      16           4       0      30       7680        0
        malloc-256    256      15      15          15       0      62       7680        0
        malloc-256    256       7      23         292       0      62       7680        0
        malloc-256    256      18      12          20       0      62       7680        0
        malloc-256    256      15      15          79       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-512    512       0       8           2       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
        sctp_laddr     48       0      84           6       0     254       4032        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
        sctp_chunk    152       1      25           1       0     254       3952        0
       UMA Slabs 1    176       8      14           8       0      62       3872        0
           sctp_ep   1280       1       2           1       0     254       3840        0
        malloc-384    384       1       9           2       0      30       3840        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      12      27          14       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
            da_ccb    544       0       0           0       0      16          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
sctp_stream_msg_out    112       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     254          0        0
   cdg_qdiffsample     16       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    312       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    832       0       0           0       0      16          0        0
      tcp_rack_map    112       0       0           0       0     126          0        0
     udplite_inpcb    496       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
    IPsec SA lft_c     16       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
           NCLNODE    592       0       0           0       0      16          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
     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-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-8192   8192       0       0           0       0       1          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
       malloc-1024   1024       0       0           0       0      16          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
2021/07/29 19:39 freebsd-src cbf6f55e77a9 8a799410 console log report ci-freebsd-main panic: mtx_lock() of spin mutex (null) @ /syzkaller/managers/main/kernel/sys/kern/uipc_socket.c:LINE
* Struck through repros no longer work on HEAD.