syzbot


panic: sx_try_xlock() of destroyed sx at sys/kern/uipc_sockbuf.c:LINE (2)

Status: closed as dup on 2021/09/07 21:57
Reported-by: syzbot+981310f499514523cecf@syzkaller.appspotmail.com
First crash: 1342d, last: 1089d
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 1042d 1927d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd panic: sx_try_xlock() of destroyed sx at sys/kern/uipc_sockbuf.c:LINE 8 1443d 1613d 0/2 auto-closed as invalid on 2020/10/09 04:38

Sample crash report:
login: panic: sx_try_xlock() of destroyed sx @ /syzkaller/managers/main/kernel/sys/kern/uipc_sockbuf.c:469
cpuid = 1
time = 1612707908
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0088e406a0
vpanic() at vpanic+0x1c7/frame 0xfffffe0088e40700
panic() at panic+0x43/frame 0xfffffe0088e40760
sx_try_xlock_int() at sx_try_xlock_int+0x1e6/frame 0xfffffe0088e407b0
sblock() at sblock+0x5d/frame 0xfffffe0088e407e0
sosend_generic() at sosend_generic+0x1ff/frame 0xfffffe0088e408d0
sosend() at sosend+0xc6/frame 0xfffffe0088e40940
kern_sendit() at kern_sendit+0x35b/frame 0xfffffe0088e409f0
sendit() at sendit+0x229/frame 0xfffffe0088e40a50
sys_sendto() at sys_sendto+0x5c/frame 0xfffffe0088e40ab0
amd64_syscall() at amd64_syscall+0x247/frame 0xfffffe0088e40bf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe0088e40bf0
--- syscall (198, FreeBSD ELF64, nosys), rip = 0x284cca, rsp = 0x7fffdffdcf08, rbp = 0x7fffdffdcf70 ---
KDB: enter: panic
[ thread pid 877 tid 100252 ]
Stopped at      kdb_enter+0x67: movq    $0,0x1444cfe(%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                       0x80
rdx         0xffffffff8199a24d
rbx                          0
rsp         0xfffffe0088e40680
rbp         0xfffffe0088e406a0
rsi                        0x1
rdi                          0
r8                           0
r9                  0xffffffff
r10                          0
r11         0xfffffe00887eba10
r12         0xffffffff820678b0  ddb_dbbe
r13                          0
r14         0xffffffff81a497d0
r15         0xffffffff81a497d0
rip         0xffffffff81121787  kdb_enter+0x67
rflags                    0x82
kdb_enter+0x67: movq    $0,0x1444cfe(%rip)
db> show proc
Process 877 (syz-executor.0) at 0xfffff800198f2528:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 789 at 0xfffff80004e7ca50
 ABI: FreeBSD ELF64
 flag: 0x10000080  flag2: 0
 arguments: /root/syz-executor.0
 reaper: 0xfffff8000448c528 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe00887c29f0
   (map 0xfffffe00887c29f0)
   (map.pmap 0xfffffe00887c2ab0)
   (pmap 0xfffffe00887c2b10)
 threads: 3
100162                   RunQ                                syz-executor.0
100251                   Run     CPU 0                       syz-executor.0
100252                   Run     CPU 1                       syz-executor.0
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  877   789   789     0  R       (threaded)                  syz-executor.0
100162                   RunQ                                syz-executor.0
100251                   Run     CPU 0                       syz-executor.0
100252                   Run     CPU 1                       syz-executor.0
  825   815   825     0  Ss      select  0xfffff80019850d40  dhclient
  819     1   819     0  Ss      select  0xfffff800192db1c0  dhclient
  815   804   436    65  S       select  0xfffff800192db0c0  dhclient
  804   436   436     0  S       wait    0xfffff80004f3aa50  sh
  789   787   789     0  Ss      nanslp  0xffffffff82539c20  syz-executor.0
  787   785   785     0  S       (threaded)                  syz-execprog
100112                   S       uwait   0xfffff80004e4ca00  syz-execprog
100116                   S       uwait   0xfffff80004e4c500  syz-execprog
100117                   S       kqread  0xfffff80004eb0400  syz-execprog
100118                   S       uwait   0xfffff800194fae00  syz-execprog
100119                   S       uwait   0xfffff800194faf00  syz-execprog
100120                   S       uwait   0xfffff80004e4c080  syz-execprog
100121                   S       uwait   0xfffff80004b92200  syz-execprog
100122                   S       uwait   0xfffff800194fac00  syz-execprog
  785   783   785     0  Ss      pause   0xfffff80004e7c5d8  csh
  783   694   783     0  Ss      select  0xfffff800192db140  sshd
  760     1   760     0  Ss+     ttyin   0xfffff800048d78b0  getty
  759     1   759     0  Ss+     ttyin   0xfffff80004c15cb0  getty
  758     1   758     0  Ss+     ttyin   0xfffff80004c194b0  getty
  757     1   757     0  Ss+     ttyin   0xfffff80004c19cb0  getty
  756     1   756     0  Ss+     ttyin   0xfffff80004c1c4b0  getty
  755     1   755     0  Ss+     ttyin   0xfffff80004c1ccb0  getty
  754     1   754     0  Ss+     ttyin   0xfffff80004ba64b0  getty
  753     1   753     0  Ss+     ttyin   0xfffff80004ba6cb0  getty
  752     1   752     0  Ss+     ttyin   0xfffff80004bad4b0  getty
  750     1    24     0  S+      piperd  0xfffff800193b35d0  logger
  749   748    24     0  S+      nanslp  0xffffffff82539c21  sleep
  748     1    24     0  S+      wait    0xfffff80004ee6528  sh
  698     1   698     0  Ss      nanslp  0xffffffff82539c21  cron
  694     1   694     0  Ss      select  0xfffff800192db3c0  sshd
  507     1   507     0  Ss      select  0xfffff800192db8c0  syslogd
  436     1   436     0  Ss      wait    0xfffff80004f25a50  devd
  435     1   435    65  Ss      select  0xfffff800192dbcc0  dhclient
  350     1   350     0  Ss      select  0xfffff800192dbe40  dhclient
  347     1   347     0  Ss      select  0xfffff80004da09c0  dhclient
   23     0     0     0  DL      vlruwt  0xfffff80004db4528  [vnlru]
   22     0     0     0  DL      syncer  0xffffffff826290b8  [syncer]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100079                   D       qsleep  0xffffffff826281a0  [bufdaemon]
100082                   D       -       0xffffffff8200ac80  [bufspacedaemon-0]
100095                   D       sdflush 0xfffff80004f3fce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff8264ff88  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100077                   D       psleep  0xffffffff826443f8  [dom0]
100080                   D       launds  0xffffffff82644404  [laundry: dom0]
100081                   D       umarcl  0xffffffff815a86d0  [uma]
   18     0     0     0  DL      -       0xffffffff8236dfa8  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff82cae818  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff82db4430  [pf purge]
   15     0     0     0  DL      -       0xffffffff8262575c  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8262575c  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8262575c  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8262575c  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100043                   D       -       0xffffffff822458c0  [doneq0]
100076                   D       -       0xffffffff82245790  [scanner]
   14     0     0     0  DL      seqstat 0xfffff80004083488  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffff80004529d90  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff80004529d30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff826418e0  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100034                   D       -       0xffffffff82519460  [g_event]
100035                   D       -       0xffffffff82519468  [g_up]
100036                   D       -       0xffffffff82519470  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100027                   D       -       0xfffff8000446f900  [thr_0]
100028                   D       -       0xfffff8000446f980  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100010                   I                                   [swi6: Giant taskq]
100015                   I                                   [swi5: fast taskq]
100017                   I                                   [swi6: task queue]
100029                   I                                   [swi4: clock (0)]
100030                   I                                   [swi4: clock (1)]
100031                   I                                   [swi3: vm]
100032                   I                                   [swi1: netisr 0]
100044                   I                                   [irq24: virtio_pci0]
100045                   I                                   [irq25: virtio_pci0]
100046                   I                                   [irq26: virtio_pci0]
100047                   I                                   [irq27: virtio_pci0]
100048                   I                                   [irq28: virtio_pci1]
100049                   I                                   [irq29: virtio_pci1]
100050                   I                                   [irq30: virtio_pci1]
100051                   I                                   [irq31: virtio_pci1]
100052                   I                                   [irq32: virtio_pci1]
100057                   I                                   [irq10: virtio_pci2]
100059                   I                                   [irq1: atkbd0]
100060                   I                                   [irq12: psm0]
100061                   I                                   [swi0: uart uart++]
100069                   I                                   [swi1: pf send]
100085                   I                                   [swi1: hpts]
100086                   I                                   [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff8000448c528  [init]
   10     0     0     0  DL      audit_w 0xffffffff82641e00  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff825199f0  [swapper]
100005                   D       -       0xfffff8000446fe00  [if_io_tqg_0]
100006                   D       -       0xfffff8000446fd00  [if_io_tqg_1]
100007                   D       -       0xfffff8000446fc00  [if_config_tqg_0]
100008                   D       -       0xfffff8000446fb00  [softirq_0]
100009                   D       -       0xfffff8000446fa00  [softirq_1]
100011                   D       -       0xfffff8000446ed00  [inm_free taskq]
100012                   D       -       0xfffff8000446ec00  [linuxkpi_irq_wq]
100013                   D       -       0xfffff8000446eb00  [thread taskq]
100014                   D       -       0xfffff8000446ea00  [aiod_kick taskq]
100016                   D       -       0xfffff8000446e800  [kqueue_ctx taskq]
100018                   D       -       0xfffff8000446e600  [in6m_free taskq]
100019                   D       -       0xfffff8000446e500  [linuxkpi_short_wq_0]
100020                   D       -       0xfffff8000446e500  [linuxkpi_short_wq_1]
100021                   D       -       0xfffff8000446e500  [linuxkpi_short_wq_2]
100022                   D       -       0xfffff8000446e500  [linuxkpi_short_wq_3]
100023                   D       -       0xfffff8000446e400  [linuxkpi_long_wq_0]
100024                   D       -       0xfffff8000446e400  [linuxkpi_long_wq_1]
100025                   D       -       0xfffff8000446e400  [linuxkpi_long_wq_2]
100026                   D       -       0xfffff8000446e400  [linuxkpi_long_wq_3]
100033                   D       -       0xfffff8000446e300  [firmware taskq]
100037                   D       -       0xfffff800044e3800  [crypto_0]
100038                   D       -       0xfffff800044e3800  [crypto_1]
100053                   D       -       0xfffff800044e3100  [vtnet0 rxq 0]
100054                   D       -       0xfffff800044e3000  [vtnet0 txq 0]
100055                   D       -       0xfffff800048ede00  [vtnet0 rxq 1]
100056                   D       -       0xfffff800048edd00  [vtnet0 txq 1]
100058                   D       vtbslp  0xfffff8000465a880  [virtio_balloon]
100062                   D       -       0xfffff800048edc00  [mca taskq]
100066                   D       -       0xffffffff81df4751  [deadlkres]
100071                   D       -       0xfffff800044e3600  [acpi_task_0]
100072                   D       -       0xfffff800044e3600  [acpi_task_1]
100073                   D       -       0xfffff800044e3600  [acpi_task_2]
100075                   D       -       0xfffff800044e3200  [CAM taskq]
db> show all locks
Process 877 (syz-executor.0) thread 0xfffffe00887ebc00 (100251)
exclusive sleep mutex eventhandler (eventhandler) r = 0 (0xffffffff825662c0) locked @ /syzkaller/managers/main/kernel/sys/kern/subr_eventhandler.c:271
exclusive sleep mutex socket (socket) r = 0 (0xfffff80019876000) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_usrreq.c:495
exclusive rw tcpinp (tcpinp) r = 0 (0xfffff8001990b208) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_usrreq.c:487
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4216         4340K         4241
          tcp_hpts            5         3201K            5
             vtbuf           24         1968K           46
         sysctloid        30827         1808K        30893
              kobj          331         1324K          491
            newblk          428         1131K          536
          vfscache            3         1025K            3
               pcb           24          537K          198
          inodedep           26          522K          153
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          122          235K          948
            acpica         1674          184K        56678
         vnet_data            1          168K            1
           tidhash            3          141K            3
           pagedep           13          131K          190
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          103          103K          114
            linker          285          101K          311
               bus          989           81K         3504
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          505           64K          505
              umtx          324           41K          324
           kdtrace          195           39K         1131
          filedesc            5           37K          135
               BPF           19           36K           19
              temp           23           33K         1706
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          122           31K          132
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
         ufs_mount            5           17K            6
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
            dirrem           60           15K           87
            ifaddr           42           15K           42
            bus-sc           32           14K         1725
              vmem            3           13K            3
            KTRACE          100           13K          100
              kenv           93           12K           93
      eventhandler          133           12K          133
              GEOM           60           10K          489
              rman           82           10K          423
         bmsafemap            3            9K          113
              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
          freefile           59            8K           84
     audit_evclass          236            8K          294
             ifnet            4            7K            4
            sglist            5            7K            5
           CAM DEV            3            6K          510
         taskqueue           57            6K           57
           lltable           19            6K           19
              cred           22            6K          250
            kqueue           54            6K          882
       ether_multi           68            6K           78
         CAM queue            5            6K         1528
            plimit           19            5K          359
       ufs_dirhash           24            5K           24
         in6_multi           35            5K           35
               UMA          262            5K          262
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          routetbl           18            4K           18
          pf_ifnet            7            4K           10
             hhook           13            4K           13
           pwddesc           52            4K          878
       fpukern_ctx            3            3K            3
           session           23            3K           35
           acpisem           22            3K           22
          terminal           11            3K           11
         proc-args           44            3K          529
           uidinfo            3            3K            9
             lockf           20            3K           33
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
             selfd           31            2K        10033
            Unitno           27            2K           41
           CAM XPT           22            2K          543
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
            select           10            2K           34
               msi            9            2K            9
             clone            9            2K            9
           softdep            1            1K            1
            diradd            8            1K          103
          indirdep            4            1K            4
            sahead            1            1K            1
          secasvar            1            1K            1
       vnodemarker            2            1K            8
      NFSD session            1            1K            1
            ip6ndp            6            1K            7
          sctp_ifa            7            1K            8
        CAM periph            4            1K          271
             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
      linuxcurrent            3            1K            4
           CAM SIM            2            1K            2
              pfil            4            1K            4
              cdev            2            1K            2
          sctp_ifn            3            1K            8
               mld            3            1K            3
              igmp            3            1K            3
    chacha20random            1            1K            1
       inpcbpolicy           11            1K          386
               tun            4            1K            4
               osd            3            1K           10
            DEVFSP            5            1K            5
             mkdir            2            1K          140
            vnodes            1            1K            1
              ktls            1            1K            1
          procdesc            2            1K            8
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K            7
            prison            6            1K            6
             linux            5            1K            6
        aesni_data            2            1K            2
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
            apmdev            1            1K            1
          atkbddev            2            1K            2
          CAM path            4            1K         1034
          freework            1            1K           85
         newdirblk            1            1K           70
          pmchooks            1            1K            1
          filecaps            5            1K           72
            soname            4            1K         3208
          nexusdev            6            1K            6
          sctp_vrf            1            1K            1
           entropy            2            1K           39
              vnet            1            1K            1
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
            mqdata            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
        sctp_mcore            0            0K            0
        sctp_socko            0            0K            0
         sctp_iter            0            0K            5
         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_athm            0            0K            0
         sctp_atky            0            0K            0
         sctp_atcl            0            0K            0
         sctp_a_it            0            0K            5
         sctp_aadr            0            0K            0
         sctp_stro            0            0K            0
         sctp_stri            0            0K            0
          sctp_map            0            0K            0
           ata_pci            0            0K            0
           ata_dma            0            0K            0
       ata_generic            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
               amr            0            0K            0
            pvscsi            0            0K            0
           scsi_da            0            0K           69
            ata_da            0            0K            0
           scsi_ch            0            0K            0
           scsi_cd            0            0K            0
       AHCI driver            0            0K            0
              iavf            0            0K            0
               ixl            0            0K            0
            USBdev            0            0K            0
               USB            0            0K            0
               agp            0            0K            0
           nvme_da            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
             axgbe            0            0K            0
           acpipwr            0            0K            0
          xen_intr            0            0K            0
         acpi_perf            0            0K            0
            twsbuf            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
      twe_commands            0            0K            0
      twa_commands            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            0            0K            0
       tcp_log_dev            0            0K            0
      midi buffers            0            0K            0
             mixer            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
              ac97            0            0K            0
             hdacc            0            0K            0
              hdac            0            0K            0
     vm_fictitious            0            0K            0
              hdaa            0            0K            0
         acpicmbat            0            0K            0
       SIIS driver            0            0K            0
           CAM CCB            0            0K         2033
               PUC            0            0K            0
           UMAHash            0            0K            0
          ppbusdev            0            0K            0
agtiapi_MemAlloc malloc            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K           64
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K            2
           jsegdep            0            0K            0
              jseg            0            0K            0
         jfreefrag            0            0K            0
          jfreeblk            0            0K            0
           jnewblk            0            0K            0
            jmvref            0            0K            0
           jremref            0            0K            0
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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     522       12138       0     254   36216832        0
              mbuf    256    8587     518       13762       0     254    2330880        0
              pbuf   2632       0     778           0       0       2    2047696        0
          BUF TRIE    144     168   13300         566       0      62    1939392        0
        malloc-384    384    4168       2        4169       0      30    1601280        0
       malloc-4096   4096     338       1         501       0       2    1388544        0
        malloc-128    128   10105      94       10231       0     126    1305472        0
       UMA Slabs 0    112    9632      13        9632       0     126    1080240        0
         FFS inode   1128     494      17         578       0       8     576408        0
        RADIX NODE    144    2248     157       22957       0      62     346320        0
            THREAD   1792     142      20         252       0       8     290304        0
             VNODE    488     525      59         611       0      30     284992        0
         VM OBJECT    264    1006      59       14200       0      30     281160        0
      malloc-65536  65536       4       0           4       0       1     262144        0
        256 Bucket   2048      98      16        9862       0       8     233472        0
       malloc-4096   4096      52       4         878       0       2     229376        0
            DEVCTL   1024       0     216         118       0       0     221184        0
         malloc-64     64    3225     114        4055       0     254     213696        0
         malloc-16     16   12759     241       12818       0     254     208000        0
         UMA Zones    768     234       0         234       0      16     179712        0
        malloc-256    256     616      44         851       0      62     168960        0
        malloc-128    128    1191     111       26700       0     126     166656        0
         malloc-32     32    4843     197        4857       0     254     161280        0
       FFS2 dinode    256     494      46         578       0      62     138240        0
      malloc-65536  65536       0       2         136       0       1     131072        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2          62       0       1     131072        0
       malloc-1024   1024     123       5         134       0      16     131072        0
         MAP ENTRY     96    1034     226       41414       0     126     120960        0
       S VFS Cache    104     987     144        1086       0     126     117624        0
          ksiginfo    112      54     990          74       0     126     116928        0
         vmem btag     56    1698      90        1698       0     254     100128        0
           VMSPACE   2544      29      10         856       0       4      99216        0
      malloc-16384  16384       2       4          67       0       1      98304        0
        malloc-128    128     709      35        3807       0     126      95232        0
      mbuf_cluster   2048      45       1          45       0     254      94208        0
              PROC   1320      51      18         877       0       8      91080        0
       malloc-2048   2048       7      37        2804       0       8      90112        0
          UMA Kegs    384     220       3         220       0      30      85632        0
            clpbuf   2632       0      32          14       0      16      84224        0
            socket    944      24      64        1505       0     254      83072        0
             tcpcb   1048       7      70         247       0     254      80696        0
         filedesc0   1072      52      18         878       0       8      75040        0
       malloc-4096   4096      17       1          30       0       2      73728        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-32768  32768       2       0           2       0       1      65536        0
      malloc-32768  32768       0       2         130       0       1      65536        0
       malloc-8192   8192       6       2         107       0       1      65536        0
        malloc-256    256     132     108         690       0      62      61440        0
        malloc-256    256     206      34         321       0      62      61440        0
             g_bio    408       0     150        5645       0      30      61200        0
        128 Bucket   1024      35      16         585       0      16      52224        0
        malloc-128    128     337      66         572       0     126      51584        0
      malloc-16384  16384       3       0           3       0       1      49152        0
      malloc-16384  16384       3       0           9       0       1      49152        0
        malloc-128    128     351      21        1155       0     126      47616        0
         malloc-64     64     536     157        1631       0     254      44352        0
         32 Bucket    256      43     122        8114       0      62      42240        0
        malloc-384    384      37      63         185       0      30      38400        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36       12727       0      16      36864        0
       malloc-4096   4096       9       0          11       0       2      36864        0
            pcpu-8      8    4265     343        4317       0     254      36864        0
         malloc-64     64     481      86         924       0     254      36288        0
         tcp_inpcb    488       7      65         247       0     254      35136        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       0       2         170       0       1      32768        0
       malloc-8192   8192       2       2          30       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
           pcpu-64     64     479      33         479       0     254      32768        0
         64 Bucket    512      53      11        1336       0      30      32768        0
        malloc-384    384      71       9          72       0      30      30720        0
         malloc-64     64     351      90        1355       0     254      28224        0
         TURNSTILE    136     163      26         163       0      62      25704        0
       malloc-8192   8192       2       1           4       0       1      24576        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-4096   4096       4       2         861       0       2      24576        0
            ttyinq    160     135      15         300       0      62      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
       malloc-1024   1024      12       8          16       0      16      20480        0
         malloc-64     64      82     233       23687       0     254      20160        0
          8 Bucket     80      41     209         460       0     126      20000        0
        malloc-128    128     107      48         599       0     126      19840        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        SLEEPQUEUE     88     163      29         163       0     126      16896        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-2048   2048       5       3          18       0       8      16384        0
       malloc-2048   2048       6       2           6       0       8      16384        0
       malloc-2048   2048       5       3         196       0       8      16384        0
       malloc-1024   1024       7       9          47       0      16      16384        0
       malloc-1024   1024      12       4          17       0      16      16384        0
         malloc-32     32     335     169         468       0     254      16128        0
             Files     80     102      98        7128       0     126      16000        0
        malloc-128    128      95      29          96       0     126      15872        0
        malloc-384    384      21      19         367       0      30      15360        0
        malloc-384    384      27      13          27       0      30      15360        0
        malloc-256    256      44      16         676       0      62      15360        0
              pipe    744      12       8         301       0      16      14880        0
       malloc-1024   1024      11       1          11       0      16      12288        0
       malloc-1024   1024       2      10         974       0      16      12288        0
        malloc-512    512      10      14         636       0      30      12288        0
         malloc-64     64      89     100         952       0     254      12096        0
         udp_inpcb    488       2      22         134       0     254      11712        0
              kenv    258      15      30        1062       0      30      11610        0
       mbuf_packet    256       1      44         121       0     254      11520        0
        malloc-256    256      39       6         125       0      62      11520        0
        malloc-256    256      13      32        1034       0      62      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       1       1           3       0       2       8192        0
       malloc-2048   2048       3       1           3       0       8       8192        0
       malloc-2048   2048       0       4          40       0       8       8192        0
       malloc-1024   1024       2       6         157       0      16       8192        0
        malloc-512    512       7       9          13       0      30       8192        0
        malloc-512    512       4      12          63       0      30       8192        0
           rtentry    176      18      28          22       0      62       8096        0
              PGRP     88      23      69          35       0     126       8096        0
          rl_entry     40      33     169          33       0     254       8080        0
        sctp_laddr     48       0     168           6       0     254       8064        0
             udpcb     32       2     250         134       0     254       8064        0
               PWD     32      13     239         165       0     254       8064        0
         malloc-64     64      27      99          27       0     254       8064        0
         malloc-64     64      14     112          38       0     254       8064        0
         malloc-32     32       2     250          16       0     254       8064        0
         malloc-32     32      55     197         947       0     254       8064        0
         malloc-32     32      67     185         975       0     254       8064        0
         malloc-32     32      55     197          98       0     254       8064        0
         malloc-32     32      62     190        3204       0     254       8064        0
         malloc-32     32      19     233        1070       0     254       8064        0
         16 Bucket    144      35      21         198       0      62       8064        0
          4 Bucket     48       5     163          57       0     254       8064        0
          2 Bucket     32      52     200         538       0     254       8064        0
      vtnet_tx_hdr     24       0     334         721       0     254       8016        0
             KNOTE    160       8      42         356       0      62       8000        0
         malloc-16     16       6     494           6       0     254       8000        0
         malloc-16     16      35     465         225       0     254       8000        0
         malloc-16     16      49     451         526       0     254       8000        0
         malloc-16     16     196     304        1462       0     254       8000        0
         malloc-16     16      22     478          34       0     254       8000        0
         malloc-16     16     265     235       25914       0     254       8000        0
         malloc-16     16      17     483          68       0     254       8000        0
             ripcb    488       2      14           5       0     254       7808        0
     routing nhops    256      15      15          22       0      62       7680        0
             unpcb    256      11      19        1099       0     254       7680        0
        malloc-384    384       8      12           8       0      30       7680        0
        malloc-256    256      17      13          17       0      62       7680        0
        malloc-256    256       8      22         314       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       1       0           1       0       2       4096        0
       malloc-2048   2048       1       1           1       0       8       4096        0
       malloc-2048   2048       2       0           2       0       8       4096        0
        malloc-512    512       1       7           1       0      30       4096        0
        malloc-512    512       1       7           1       0      30       4096        0
        malloc-512    512       0       8           1       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
         hostcache     96       1      41           1       0     254       4032        0
          syncache    168       0      24           5       0     254       4032        0
        malloc-128    128       5      26           5       0     126       3968        0
       UMA Slabs 1    176       8      14           8       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       2      29           2       0     254        992        0
        SMR SHARED     24       2      29           2       0     254        744        0
       FFS1 dinode    128       0       0           0       0     126          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
sctp_stream_msg_out    112       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     254          0        0
        sctp_chunk    152       0       0           0       0     254          0        0
        sctp_raddr    736       0       0           0       0     254          0        0
         sctp_asoc   2288       0       0           0       0     254          0        0
           sctp_ep   1280       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_rack_pcb    704       0       0           0       0      16          0        0
      tcp_rack_map    120       0       0           0       0     126          0        0
       tcp_bbr_pcb    832       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
     udplite_inpcb    488       0       0           0       0     254          0        0
      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
           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   2632       0       0           0       0      64          0        0
            mdpbuf   2632       0       0           0       0       3          0        0
           nfspbuf   2632       0       0           0       0      16          0        0
            swwbuf   2632       0       0           0       0       8          0        0
            swrbuf   2632       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-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-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
        malloc-512    512       0       0           0       0      30          0        0
        malloc-384    384       0       0           0       0      30          0        0
        malloc-384    384       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 (21):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/02/07 14:27 freebsd-src f6e8256a965d 2ce644fc console log report syz ci-freebsd-main panic: sx_try_xlock() of destroyed sx at sys/kern/uipc_sockbuf.c:LINE
2020/11/12 06:22 freebsd c60bae27436d cca87986 console log report syz ci-freebsd-main
2020/12/25 00:39 freebsd 9e4440ca5ba7 c2c1d1dd console log report syz ci-freebsd-i386
2020/12/01 08:34 freebsd 74bc68cd7c36 b3a34598 console log report syz ci-freebsd-i386
2020/11/12 05:46 freebsd ff76900e1140 cca87986 console log report syz ci-freebsd-i386
2021/06/22 09:02 freebsd-src 15fccd86b9dd aba2b2fb console log report ci-freebsd-main panic: sx_try_xlock() of destroyed sx at sys/kern/uipc_sockbuf.c:LINE
2021/06/19 02:51 freebsd-src 64e6e1e46363 aba2b2fb console log report ci-freebsd-main panic: sx_try_xlock() of destroyed sx at sys/kern/uipc_sockbuf.c:LINE
2021/05/03 19:23 freebsd-src cff133b05ba1 ad61f371 console log report ci-freebsd-main panic: sx_try_xlock() of destroyed sx at sys/kern/uipc_sockbuf.c:LINE
2021/01/29 22:28 freebsd-src 9d4104b21496 fc9fd31e console log report ci-freebsd-main panic: sx_try_xlock() of destroyed sx at sys/kern/uipc_sockbuf.c:LINE
2021/06/30 15:35 freebsd-src c0149d030023 84fd4c77 console log report ci-freebsd-i386 panic: sx_try_xlock() of destroyed sx at sys/kern/uipc_sockbuf.c:LINE
2021/04/28 11:59 freebsd-src f33f2365eeef 77e2b668 console log report ci-freebsd-i386 panic: sx_try_xlock() of destroyed sx at sys/kern/uipc_sockbuf.c:LINE
2021/02/07 12:15 freebsd-src f6e8256a965d 2ce644fc console log report ci-freebsd-i386 panic: sx_try_xlock() of destroyed sx at sys/kern/uipc_sockbuf.c:LINE
2021/02/05 13:58 freebsd-src 375d797b8191 42b90a7c console log report ci-freebsd-i386 panic: sx_try_xlock() of destroyed sx at sys/kern/uipc_sockbuf.c:LINE
2021/01/04 13:08 freebsd de1aa3dab23c 79264ae3 console log report ci-freebsd-main
2020/12/24 17:39 freebsd 9e4440ca5ba7 c2c1d1dd console log report ci-freebsd-main
2020/12/01 06:37 freebsd 74bc68cd7c36 b3a34598 console log report ci-freebsd-main
2020/11/08 17:13 freebsd a2e5d6d758fa 64069d48 console log report ci-freebsd-main
2020/10/25 10:27 freebsd ddf1072aac49 2bb6666c console log report ci-freebsd-main
2020/10/20 16:35 freebsd 34d4d165af58 ff4a3345 console log report ci-freebsd-main
2020/11/12 05:30 freebsd ff76900e1140 cca87986 console log report ci-freebsd-i386
2021/01/11 09:54 freebsd-src 685de460bc91 2c1f2513 console log report ci-freebsd-i386
* Struck through repros no longer work on HEAD.