syzbot


panic: Queues are not empty when handling SHUTDOWN-ACK (2)

Status: fixed on 2022/05/29 00:41
Reported-by: syzbot+d8345f69b0d1892609d9@syzkaller.appspotmail.com
Fix commit: 64b297e803bd sctp: improve handling of send() when association is shutdown
First crash: 253d, last: 253d
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd panic: Queues are not empty when handling SHUTDOWN-ACK syz 142 395d 965d 0/2 closed as invalid on 2022/04/17 17:13

Sample crash report:
panic: Queues are not empty when handling SHUTDOWN-ACK
cpuid = 0
time = 1653764556
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe0053b23fb0
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe0053b24110
vpanic() at vpanic+0x2b8/frame 0xfffffe0053b241f0
panic() at panic+0xb5/frame 0xfffffe0053b242b0
sctp_handle_shutdown_ack() at sctp_handle_shutdown_ack+0x3f9/frame 0xfffffe0053b242f0
sctp_process_control() at sctp_process_control+0x2f33/frame 0xfffffe0053b247c0
sctp_common_input_processing() at sctp_common_input_processing+0xb35/frame 0xfffffe0053b24a20
sctp_input_with_port() at sctp_input_with_port+0x57d/frame 0xfffffe0053b24bb0
sctp_input() at sctp_input+0x32/frame 0xfffffe0053b24bd0
ip_input() at ip_input+0x7ae/frame 0xfffffe0053b24cf0
swi_net() at swi_net+0x2ed/frame 0xfffffe0053b24d90
ithread_loop() at ithread_loop+0x4ee/frame 0xfffffe0053b24ef0
fork_exit() at fork_exit+0xd0/frame 0xfffffe0053b24f30
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0053b24f30
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100031 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x275b6fa(%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         0xffffffff8172b396  printf+0xf6
rdx                        0x1
rbx                          0
rsp         0xfffffe0053b240f0
rbp         0xfffffe0053b24110
rsi                          0
rdi         0xffffffff8172b3f8  printf+0x158
r8                           0
r9                  0xffffffff
r10                          0
r11                          0
r12         0xfffffe0053e9a560
r13         0xfffffe0053b24101
r14         0xffffffff82b58820  .str.26
r15         0xffffffff82b58820  .str.26
rip         0xffffffff8171af1b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x275b6fa(%rip)
db> show proc
Process 12 (intr) at 0xfffffe0053de0548:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff83e19c80
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff83e19c80 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff83e1ac20
   (map 0xffffffff83e1ac20)
   (map.pmap 0xffffffff83e1ace0)
   (pmap 0xffffffff83e1ad48)
 threads: 22
100015                   I                                   [swi5: fast taskq]
100018                   I                                   [swi6: task queue]
100019                   I                                   [swi6: Giant taskq]
100031                   Run     CPU 0                       [swi1: netisr 0]
100032                   I                                   [swi1: hpts]
100033                   I                                   [swi1: hpts]
100046                   I                                   [irq24: virtio_pci0]
100047                   I                                   [irq25: virtio_pci0]
100048                   I                                   [irq26: virtio_pci0]
100049                   I                                   [irq27: virtio_pci0]
100050                   I                                   [irq28: virtio_pci1]
100051                   I                                   [irq29: virtio_pci1]
100052                   I                                   [irq30: virtio_pci1]
100053                   I                                   [irq31: virtio_pci1]
100054                   I                                   [irq32: virtio_pci1]
100059                   I                                   [irq33: virtio_pci2]
100060                   I                                   [irq34: virtio_pci2]
100061                   I                                   [irq35: virtio_pci2]
100063                   I                                   [irq1: atkbd0]
100064                   I                                   [irq12: psm0]
100065                   I                                   [swi0: uart uart++]
100069                   I                                   [swi1: pf send]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
15828   778   778     0  R       (threaded)                  syz-executor.1
120571                   RunQ                                syz-executor.1
121059                   S       uwait   0xfffffe009f1c4d80  syz-executor.1
121060                   RunQ                                syz-executor.1
15823   784   784     0  S       (threaded)                  syz-executor.3
120855                   S       nanslp  0xffffffff83e43c80  syz-executor.3
121047                   S       connec  0xfffffe00a5fe50da  syz-executor.3
121049                   S       uwait   0xfffffe0058b16d00  syz-executor.3
15821   777   777     0  S       (threaded)                  syz-executor.0
120947                   S       nanslp  0xffffffff83e43c80  syz-executor.0
121046                   S       connec  0xfffffe00a5fcc49a  syz-executor.0
121050                   S       uwait   0xfffffe009f1c5d00  syz-executor.0
 7386     1  7386    65  Ss      select  0xfffffe00a5cc4740  dhclient
 3860     1  3860     0  Ss      select  0xfffffe00578fc1c0  dhclient
 3857     1  3857     0  Ss      select  0xfffffe00a5caf5c0  dhclient
 3830     1  3830    65  Ss      select  0xfffffe00a5caf4c0  dhclient
 2991     1  2991     0  Ss      select  0xfffffe00a5cc5dc0  dhclient
 2987     1  2987     0  Ss      select  0xfffffe00a5caeec0  dhclient
 2967     1  2967    65  Ss      select  0xfffffe00a5ce1e40  dhclient
 2545     1  2545     0  Ss      select  0xfffffe00578fc4c0  dhclient
 2541     1  2541     0  Ss      select  0xfffffe00578fc2c0  dhclient
 2519     1  2519    65  Ss      select  0xfffffe00578fc5c0  dhclient
 1721     1  1721     0  Ss      select  0xfffffe00a5d05540  dhclient
 1718     1  1718     0  Ss      select  0xfffffe00a5d054c0  dhclient
  879     0     0     0  DL      aiordy  0xfffffe009efca548  [aiod4]
  878     0     0     0  DL      aiordy  0xfffffe009f1b0000  [aiod3]
  877     0     0     0  DL      aiordy  0xfffffe009f1b0548  [aiod2]
  876     0     0     0  DL      aiordy  0xfffffe009efcaa90  [aiod1]
  784   774   784     0  Ss      nanslp  0xffffffff83e43c80  syz-executor.3
  779   774   779     0  Ss      piperd  0xfffffe0058bc2000  syz-executor.2
  778   774   778     0  Ss      nanslp  0xffffffff83e43c81  syz-executor.1
  777   774   777     0  Ss      nanslp  0xffffffff83e43c80  syz-executor.0
  774   772   772     0  S       (threaded)                  syz-fuzzer
100112                   S       kqread  0xfffffe0007957300  syz-fuzzer
100115                   S       uwait   0xfffffe0057328600  syz-fuzzer
100116                   S       uwait   0xfffffe0057328580  syz-fuzzer
100117                   S       uwait   0xfffffe0057328480  syz-fuzzer
100118                   S       uwait   0xfffffe0057328300  syz-fuzzer
100119                   S       uwait   0xfffffe0058b14600  syz-fuzzer
100120                   S       uwait   0xfffffe0058b14700  syz-fuzzer
100121                   S       uwait   0xfffffe0058b14800  syz-fuzzer
100123                   S       uwait   0xfffffe0058b14a00  syz-fuzzer
100124                   S       uwait   0xfffffe0058b14b00  syz-fuzzer
  772   770   772     0  Ss      pause   0xfffffe009efcbb40  csh
  770   688   770     0  Ss      select  0xfffffe0056f6abc0  sshd
  754     1   754     0  Ss+     ttyin   0xfffffe00574764b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00579c9cb0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe00579ca0b0  getty
  751     1   751     0  Ss+     ttyin   0xfffffe00579ca4b0  getty
  750     1   750     0  Ss+     ttyin   0xfffffe00579ca8b0  getty
  749     1   749     0  Ss+     ttyin   0xfffffe00579cacb0  getty
  748     1   748     0  Ss+     ttyin   0xfffffe0057472cb0  getty
  747     1   747     0  Ss+     ttyin   0xfffffe00579cb0b0  getty
  746     1   746     0  Ss+     ttyin   0xfffffe00579cb4b0  getty
  692     1   692     0  Ss      nanslp  0xffffffff83e43c81  cron
  688     1   688     0  Ss      select  0xfffffe0056f6b3c0  sshd
  501     1   501     0  Ss      select  0xfffffe0056f6b1c0  syslogd
  430     1   430     0  Ss      select  0xfffffe0056f6b0c0  devd
  429     1   429    65  Ss      select  0xfffffe0056f6ae40  dhclient
  344     1   344     0  Ss      select  0xfffffe0056f6af40  dhclient
  341     1   341     0  Ss      select  0xfffffe0056f6b840  dhclient
   17     0     0     0  DL      vlruwt  0xfffffe0056fa0548  [vnlru]
   16     0     0     0  DL      syncer  0xffffffff83f694e0  [syncer]
   15     0     0     0  DL      (threaded)                  [bufdaemon]
100079                   D       psleep  0xffffffff83f67ae0  [bufdaemon]
100082                   D       -       0xffffffff83211f80  [bufspacedaemon-0]
100095                   D       sdflush 0xfffffe00587df8e8  [/ worker]
    9     0     0     0  DL      psleep  0xffffffff83f9b5c0  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100077                   D       psleep  0xffffffff83f8f478  [dom0]
100083                   D       launds  0xffffffff83f8f484  [laundry: dom0]
100084                   D       umarcl  0xffffffff81e4add0  [uma]
    7     0     0     0  DL      -       0xffffffff83c002a8  [rand_harvestq]
    6     0     0     0  DL      pftm    0xffffffff84b63550  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff8476e4a0  [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100044                   D       -       0xffffffff83aa3240  [doneq0]
100045                   D       -       0xffffffff83aa31c0  [async]
100076                   D       -       0xffffffff83aa3040  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0053fd7488  [sequencer 00]
    3     0     0     0  DL      (threaded)                  [crypto]
100040                   D       crypto_ 0xffffffff83f8aca0  [crypto]
100041                   D       crypto_ 0xfffffe0053ecd830  [crypto returns 0]
100042                   D       crypto_ 0xfffffe0053ecd880  [crypto returns 1]
   13     0     0     0  DL      (threaded)                  [geom]
100035                   D       -       0xffffffff83e19280  [g_event]
100036                   D       -       0xffffffff83e192a0  [g_up]
100037                   D       -       0xffffffff83e192c0  [g_down]
    2     0     0     0  WL      (threaded)                  [clock]
100029                   I                                   [clock (0)]
100030                   I                                   [clock (1)]
   12     0     0     0  RL      (threaded)                  [intr]
100015                   I                                   [swi5: fast taskq]
100018                   I                                   [swi6: task queue]
100019                   I                                   [swi6: Giant taskq]
100031                   Run     CPU 0                       [swi1: netisr 0]
100032                   I                                   [swi1: hpts]
100033                   I                                   [swi1: hpts]
100046                   I                                   [irq24: virtio_pci0]
100047                   I                                   [irq25: virtio_pci0]
100048                   I                                   [irq26: virtio_pci0]
100049                   I                                   [irq27: virtio_pci0]
100050                   I                                   [irq28: virtio_pci1]
100051                   I                                   [irq29: virtio_pci1]
100052                   I                                   [irq30: virtio_pci1]
100053                   I                                   [irq31: virtio_pci1]
100054                   I                                   [irq32: virtio_pci1]
100059                   I                                   [irq33: virtio_pci2]
100060                   I                                   [irq34: virtio_pci2]
100061                   I                                   [irq35: virtio_pci2]
100063                   I                                   [irq1: atkbd0]
100064                   I                                   [irq12: psm0]
100065                   I                                   [swi0: uart uart++]
100069                   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    0xfffffe0053de1000  [init]
   10     0     0     0  DL      audit_w 0xffffffff83f8b780  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff83e19c80  [swapper]
100005                   D       -       0xfffffe0053e84100  [if_config_tqg_0]
100006                   D       -       0xfffffe0053e84000  [softirq_0]
100007                   D       -       0xfffffe0053e83e00  [softirq_1]
100008                   D       -       0xfffffe0053e83d00  [if_io_tqg_0]
100009                   D       -       0xfffffe0053e83c00  [if_io_tqg_1]
100010                   D       -       0xfffffe000795a100  [inm_free taskq]
100011                   D       -       0xfffffe000795a000  [linuxkpi_irq_wq]
100012                   D       -       0xfffffe0007959e00  [in6m_free taskq]
100013                   D       -       0xfffffe0007959d00  [deferred_unmount ta]
100014                   D       -       0xfffffe0007959c00  [thread taskq]
100016                   D       -       0xfffffe0007959a00  [kqueue_ctx taskq]
100017                   D       -       0xfffffe0007959900  [pci_hp taskq]
100020                   D       -       0xfffffe0007959600  [aiod_kick taskq]
100021                   D       -       0xfffffe0007959500  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0007959500  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0007959500  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0007959500  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0007959400  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0007959400  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0007959400  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0007959400  [linuxkpi_long_wq_3]
100034                   D       -       0xfffffe0007959300  [firmware taskq]
100038                   D       -       0xfffffe0007959200  [crypto_0]
100039                   D       -       0xfffffe0007959200  [crypto_1]
100055                   D       -       0xfffffe0007959000  [vtnet0 rxq 0]
100056                   D       -       0xfffffe0007958e00  [vtnet0 txq 0]
100057                   D       -       0xfffffe0007958d00  [vtnet0 rxq 1]
100058                   D       -       0xfffffe0007958c00  [vtnet0 txq 1]
100062                   D       vtbslp  0xfffffe0056f6c000  [virtio_balloon]
100066                   D       -       0xffffffff82b5e6a0  [deadlkres]
100070                   D       -       0xfffffe000795a200  [mca taskq]
100071                   D       -       0xfffffe00585ef600  [acpi_task_0]
100072                   D       -       0xfffffe00585ef600  [acpi_task_1]
100073                   D       -       0xfffffe00585ef600  [acpi_task_2]
100075                   D       -       0xfffffe0007959100  [CAM taskq]
db> show all locks
Process 12 (intr) thread 0xfffffe0053e9a560 (100031)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe00a5d32bf0) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:2138
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
          tcp_hpts            7         4801K            7
            devbuf         4217         4323K         4245
         sysctloid        35322         2081K        35393
             vtbuf           24         1968K           46
              kobj          328         1312K          490
            newblk           11         1027K       135622
          vfscache            3         1025K            3
          inodedep          248          605K        22176
               pcb           69          589K        43538
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
              vmem            3          274K            5
           subproc          142          271K        15911
            acpica         1674          184K        57552
         vnet_data            1          168K            1
           tidhash            3          141K            3
            linker          358          134K          386
           pagedep            9          130K        14850
        tfo_ccache            1          128K            1
          filedesc           16          121K        29685
            DEVFS1          109          109K          126
               sem            4          106K            4
               BPF           46           88K           56
               bus          995           81K         5208
          mtx_pool            2           72K            2
          syncache            1           68K            1
            module          514           65K          514
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            dirrem          238           60K        18381
         sctp_timw          205           52K          205
              umtx          374           47K          374
           kdtrace          224           45K        36890
              temp           34           33K         2438
            DEVFS3          128           32K          138
         hostcache            1           32K            1
               shm            1           32K            1
               msg            4           30K            4
          freefile          238           30K        18375
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
            ifaddr           70           20K           72
        DEVFS_RULE           56           20K           56
         sctp_stro           19           19K         6069
         ufs_mount            4           17K            5
              proc            3           17K            3
         sctp_atcl           43           17K        30975
               tty           16           16K           16
          routetbl          130           16K          410
           ithread           97           16K           97
            bus-sc           34           15K         1681
            KTRACE          101           13K         3967
           lltable           41           13K           60
             ifnet            7           13K            7
       ether_multi          152           13K          162
      eventhandler          136           12K          136
              kenv           95           12K           95
              rman           88           11K          431
              GEOM           61           11K          490
         CAM queue            5           11K         1528
         in6_multi           65            9K           65
         bmsafemap            2            9K        20506
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K            1
               rpc            2            8K            2
             shmfd            1            8K           90
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          296
         taskqueue           63            7K           63
              cred           26            7K          274
            sglist            5            7K            5
           CAM DEV            3            6K          510
            plimit           24            6K          469
            kqueue           62            6K        15981
       ufs_dirhash           24            5K           24
               UMA          272            5K          272
           session           35            5K           53
          pf_ifnet           10            5K           19
            DEVFSP           68            5K          239
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
           pwddesc           60            4K        15829
           acpisem           28            4K           28
             selfd           55            4K       235379
             lockf           32            4K           57
         proc-args           91            4K        17193
             hhook           15            4K           17
          kcovinfo           52            4K           52
          terminal           11            3K           11
         sctp_atky           62            3K        40312
            select           19            3K           56
           uidinfo            3            3K           11
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
            ip6ndp           12            2K           14
            Unitno           30            2K         3265
          sctp_ifa           13            2K           14
           CAM XPT           22            2K          543
               msi           12            2K           12
          in_multi            6            2K            8
          freework            5            2K        68317
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
             clone            9            2K            9
               tun            7            2K            7
           softdep            1            1K            1
             mkdir            8            1K        29658
          freeblks            4            1K        21145
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           48
      NFSD session            1            1K            1
        CAM periph            4            1K          271
             ipsec            3            1K            3
          sctp_ifn            6            1K           14
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
         sctp_athm           43            1K        34201
            crypto            4            1K            4
 encap_export_host           12            1K           12
          procdesc            5            1K           18
          sctp_map           38            1K        12138
         sctp_stri            1            1K         6444
         newdirblk            4            1K        14829
            diradd            4            1K        18423
       inpcbpolicy           16            1K         3205
              pfil            4            1K            4
              cdev            2            1K            2
               osd            8            1K         2758
    chacha20random            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            CC Mem            4            1K         2747
            vnodes            1            1K            1
           CAM SIM            2            1K            2
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K            6
            prison            6            1K            6
       lkpikmalloc            5            1K            6
            soname            6            1K        30478
        aesni_data            2            1K            2
         cryptodev            2            1K           70
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          pmchooks            1            1K            1
          filecaps            5            1K          120
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           48
               pmc            1            1K            1
          acpiintr            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
          pf_table            0            0K            0
           pf_rule            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
           pf_temp            0            0K            0
            tcp_do            0            0K            0
           tcp_fsb            0            0K         1219
            mqdata            0            0K            0
           filemon            0            0K          134
            ipcomp            0            0K            0
               esp            0            0K            0
                ah            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K         8662
         sctp_iter            0            0K          193
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K          181
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K           12
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8324    1074     1465986       0     254   38494208        0
              pbuf   2624       0     973           0       0       2    2553152        0
        RADIX NODE    144   17238     397      469759       0      63    2539440        0
              mbuf    256    8739     924     2430928       0     254    2473728        0
           tcp_log    416       0    5337       44316       0     254    2220192        0
         sctp_asoc   2256      19     746        6069       0     254    1725840        0
          BUF TRIE    144     183   11605      132297       0      62    1697472        0
        malloc-384    384    4169      31        4509       0      30    1612800        0
      mbuf_cluster   2048     762       0         762       0     254    1560576        0
        malloc-128    128   11626     371       30091       0     126    1535616        0
       malloc-4096   4096     328       4         495       0       2    1359872        0
       UMA Slabs 0    112   11079       3       11079       0     126    1241184        0
         vmem btag     56   19166      97       19166       0     254    1078728        0
           sctp_ep   1208      23     747       21684       0     254     930160        0
            socket    960      48     716       26267       0     254     733440        0
       malloc-2048   2048      27     317       21879       0       8     704512        0
        malloc-384    384     261    1569       22248       0      30     702720        0
         FFS inode   1160     520      33       18895       0       8     641480        0
         VM OBJECT    264    2177     133      356236       0      30     609840        0
        sctp_raddr    736      24     746       22179       0     254     566720        0
             tcpcb   1104       4     507        2747       0     254     564144        0
        256 Bucket   2048     232      18        6332       0       8     512000        0
        malloc-256    256     313    1547       23189       0      62     476160        0
      malloc-65536  65536       4       2         140       0       1     393216        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
       malloc-4096   4096      82       8       15851       0       2     368640        0
            THREAD   1808     163      24       21060       0       8     338096        0
       malloc-8192   8192       6      35         269       0       1     335872        0
         MAP ENTRY     96    2812     464      858112       0     126     314496        0
             VNODE    448     561     105       18938       0      30     298368        0
         malloc-64     64    4133     466       20573       0     254     294336        0
        malloc-128    128     580    1714       34149       0     126     293632        0
        malloc-256    256     270     795      309838       0      62     272640        0
      malloc-32768  32768       1       7       61385       0       1     262144        0
      malloc-16384  16384      11       5       15004       0       1     262144        0
       malloc-1024   1024      26     214        6076       0      16     245760        0
         malloc-16     16   14655      95       14729       0     254     236000        0
            DEVCTL   1024       0     220         154       0       0     225280        0
        malloc-384    384      45     525       30977       0      30     218880        0
       mbuf_packet    256      38     724       32604       0     254     195072        0
         UMA Zones    768     244       0         244       0      16     187392        0
         malloc-32     32    5361     309        5826       0     254     181440        0
     FPU_save_area    832     165      51       28837       0      16     179712        0
        malloc-128    128    1220     175       26910       0     126     178560        0
       FFS2 dinode    256     520     170       18895       0      62     176640        0
        malloc-256    256     250     440       23316       0      62     176640        0
       S VFS Cache    104    1065     456       20770       0     126     158184        0
       malloc-1024   1024     121      23         337       0      16     147456        0
           VMSPACE   2552      39      15       15809       0       4     137808        0
        128 Bucket   1024      93      38        3377       0      16     134144        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2         220       0       1     131072        0
       tcp_bbr_map    128       0    1023        7238       0     126     130944        0
             unpcb    256      20     490        1337       0     254     130560        0
        sctp_chunk    152      24     756       16327       0     254     118560        0
          ksiginfo    112      71     973        7878       0     126     116928        0
    ertt_txseginfo     40       0    2828       41694       0     254     113120        0
              PROC   1352      59      22       15828       0       8     109512        0
         64 Bucket    512     119      81       34711       0      30     102400        0
         malloc-64     64     541    1034       16972       0     254     100800        0
        malloc-128    128     525     250        9028       0     126      99200        0
        malloc-256    256     212     163       21126       0      62      96000        0
         filedesc0   1072      60      24       15829       0       8      90048        0
          UMA Kegs    384     230       3         230       0      30      89472        0
              pipe    744      23      92         627       0      16      85560        0
            clpbuf   2624       0      32          53       0      16      83968        0
        malloc-128    128     422     229        1416       0     126      83328        0
         32 Bucket    256     149     166       24614       0      62      80640        0
        sctp_readq    152       0     520        2526       0     254      79040        0
             g_bio    408       0     180      926433       0      30      73440        0
         malloc-64     64     568     503         998       0     254      68544        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       0       2         120       0       1      65536        0
       malloc-4096   4096      13       3          27       0       2      65536        0
       malloc-2048   2048       5      27        1102       0       8      65536        0
sctp_stream_msg_out    112       4     536        2856       0     254      60480        0
         tcp_inpcb    424       4     122        2747       0      30      53424        0
             ripcb    424       5     121         158       0      30      53424        0
         malloc-64     64       0     819       25717       0     254      52416        0
         malloc-64     64     183     636      251361       0     254      52416        0
             Files     80     228     422       54965       0     126      52000        0
        malloc-128    128     165     238         668       0     126      51584        0
        malloc-128    128     188     215         309       0     126      51584        0
        malloc-128    128      39     364       29788       0     126      51584        0
           DIRHASH   1024      35      13          35       0      16      49152        0
             NAMEI   1024       0      48       89818       0      16      49152        0
       malloc-8192   8192       6       0           6       0       1      49152        0
       malloc-2048   2048       7      17         223       0       8      49152        0
       malloc-2048   2048      10      14          12       0       8      49152        0
       malloc-1024   1024      27      21         132       0      16      49152        0
       malloc-1024   1024       6      42         531       0      16      49152        0
        malloc-512    512       3      93        6446       0      30      49152        0
      tcp_rack_pcb    896       0      54        1219       0      16      48384        0
        malloc-384    384      82      38          83       0      30      46080        0
          syncache    168       0     264           4       0     254      44352        0
         malloc-32     32     311    1075       31007       0     254      44352        0
       malloc-8192   8192       4       1           6       0       1      40960        0
       malloc-8192   8192       5       0           5       0       1      40960        0
       malloc-4096   4096       5       5         634       0       2      40960        0
            pcpu-8      8    4704     416        4895       0     254      40960        0
       Mountpoints   2752       2      12           2       0       4      38528        0
     udplite_inpcb    424       1      89          69       0      30      38160        0
         udp_inpcb    424       6      84         231       0      30      38160        0
            da_ccb    544       0      70      231713       0      16      38080        0
         malloc-64     64     200     367         232       0     254      36288        0
         malloc-64     64      90     477       16267       0     254      36288        0
         malloc-64     64      18     549          45       0     254      36288        0
         16 Bucket    144      95     157       10006       0      62      36288        0
     routing nhops    256      27     108          34       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-384    384      44      46          63       0      30      34560        0
        malloc-256    256       2     133        5694       0      62      34560        0
        malloc-256    256      46      89          50       0      62      34560        0
        malloc-256    256      55      80        1011       0      62      34560        0
        malloc-256    256      18     117         635       0      62      34560        0
         TURNSTILE    136     188      64         188       0      62      34272        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       2       0          17       0       1      32768        0
       malloc-2048   2048       3      13          65       0       8      32768        0
       malloc-1024   1024       0      32          15       0      16      32768        0
       malloc-1024   1024       6      26        1248       0      16      32768        0
        malloc-512    512      11      53          57       0      30      32768        0
        malloc-512    512       3      61         170       0      30      32768        0
        malloc-512    512       0      64           4       0      30      32768        0
        malloc-512    512      10      54          30       0      30      32768        0
           pcpu-64     64     493      19         493       0     254      32768        0
             KNOTE    160      28     172      138864       0      62      32000        0
            ttyinq    160     135      65         300       0      62      32000        0
      tcp_rack_map    120       0     264        2090       0     126      31680        0
       tcp_bbr_pcb    832       0      36          64       0      16      29952        0
            cpuset    104       7     272        6395       0     126      29016        0
        sctp_laddr     48       0     588        6213       0     254      28224        0
   tcp_inpcb ports     32       2     880        1243       0     254      28224        0
               PWD     32      21     861       14929       0     254      28224        0
         malloc-32     32      85     797       15745       0     254      28224        0
          4 Bucket     48       7     581         375       0     254      28224        0
          2 Bucket     32      77     805       12686       0     254      28224        0
               AIO    208       0     133          57       0      62      27664        0
       malloc-8192   8192       1       2           4       0       1      24576        0
       malloc-4096   4096       2       4       15031       0       2      24576        0
       malloc-4096   4096       6       0           6       0       2      24576        0
           rtentry    176      30     108          34       0      62      24288        0
              PGRP     88      35     241          53       0     126      24288        0
          rl_entry     40      90     516          90       0     254      24240        0
          8 Bucket     80      81     219        4080       0     126      24000        0
        malloc-384    384       0      60           6       0      30      23040        0
        malloc-384    384      43      17          45       0      30      23040        0
         domainset     40       0     567        4779       0     254      22680        0
        SLEEPQUEUE     88     188      68         188       0     126      22528        0
         hostcache     64       1     314           1       0     254      20160        0
             udpcb     32       7     623         300       0     254      20160        0
udplite_inpcb ports     32       0     630           6       0     254      20160        0
   udp_inpcb ports     32       3     627          33       0     254      20160        0
              ertt     72       4     276        2747       0     126      20160        0
         malloc-32     32       6     624        5314       0     254      20160        0
         malloc-32     32     149     481        6706       0     254      20160        0
         malloc-32     32     128     502        3666       0     254      20160        0
         malloc-32     32      56     574         266       0     254      20160        0
         malloc-32     32      23     607        1085       0     254      20160        0
         malloc-16     16      78    1172       63204       0     254      20000        0
         malloc-16     16      65    1185       12220       0     254      20000        0
             AIOCB    552       0      35         264       0      16      19320        0
            AIOLIO    272       0      70          60       0      30      19040        0
 epoch_record pcpu    256       4      60           4       0      62      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       0       4           8       0       2      16384        0
       malloc-4096   4096       3       1           3       0       2      16384        0
       malloc-2048   2048       3       5           3       0       8      16384        0
       malloc-2048   2048       1       7           1       0       8      16384        0
       malloc-2048   2048       2       6           2       0       8      16384        0
       malloc-1024   1024       4      12           4       0      16      16384        0
       malloc-1024   1024       1      15           1       0      16      16384        0
           SMR CPU     32       7     504           7       0     254      16352        0
   sctp_asconf_ack     48       0     336           1       0     254      16128        0
      vtnet_tx_hdr     24       0     668      742712       0     254      16032        0
         malloc-16     16     482     518        3454       0     254      16000        0
              kenv    258      15      45        1053       0      30      15480        0
            mqnode    416       3      33           3       0      30      14976        0
              vmem   1856       1       7           1       0       8      14848        0
        SMR SHARED     24       7     504           7       0     254      12264        0
              AIOP     32       4     374           4       0     254      12096        0
         malloc-16     16      10     740       34096       0     254      12000        0
         malloc-16     16      22     728         135       0     254      12000        0
         malloc-16     16      20     730         390       0     254      12000        0
         malloc-16     16      40     710       16517       0     254      12000        0
        malloc-384    384       1      29           1       0      30      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
           pcpu-16     16      14     498          14       0     254       8192        0
       UMA Slabs 1    176      10      12          10       0      62       3872        0
        KMAP ENTRY     96      12      27          14       0       0       3744        0
            pcpu-4      4       1     511           1       0     254       2048        0
       FFS1 dinode    128       0       0           0       0     126          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
   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     254          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    184       0       0           0       0      62          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     72       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
   tcp_log_id_node    120       0       0           0       0     126          0        0
 tcp_log_id_bucket    176       0       0           0       0      62          0        0
          tcpreass     48       0       0           0       0     254          0        0
       ripcb ports     32       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
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
           NCLNODE    608       0       0           0       0      16          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     32       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
    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
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-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-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2022/05/28 19:02 freebsd-src 9cb70cb4769d a46af346 console log report panic: Queues are not empty when handling SHUTDOWN-ACK
* Struck through repros no longer work on HEAD.