syzbot


panic: Most recently used by in6_mfilter

Status: closed as invalid on 2021/09/17 21:42
Reported-by: syzbot+1840bd9f7f1cd756ac6a@syzkaller.appspotmail.com
Fix commit: #syz fix: Fix a UDP tunneling issue with rack. Basically there are two
First crash: 1144d, last: 1143d

Sample crash report:
panic: Most recently used by in6_mfilter

cpuid = 1
time = 1620378463
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00517a86c0
vpanic() at vpanic+0x1c7/frame 0xfffffe00517a8720
panic() at panic+0x43/frame 0xfffffe00517a8780
mtrash_ctor() at mtrash_ctor+0xe5/frame 0xfffffe00517a87c0
item_ctor() at item_ctor+0x46f/frame 0xfffffe00517a8820
malloc() at malloc+0xe3/frame 0xfffffe00517a8880
rack_init() at rack_init+0x7e5/frame 0xfffffe00517a8900
tcp_ctloutput() at tcp_ctloutput+0x65f/frame 0xfffffe00517a8980
sosetopt() at sosetopt+0x101/frame 0xfffffe00517a8a00
kern_setsockopt() at kern_setsockopt+0x150/frame 0xfffffe00517a8a80
sys_setsockopt() at sys_setsockopt+0x33/frame 0xfffffe00517a8ab0
amd64_syscall() at amd64_syscall+0x247/frame 0xfffffe00517a8bf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00517a8bf0
--- syscall (198, FreeBSD ELF64, nosys), rip = 0x285e1a, rsp = 0x7fffdfffdf08, rbp = 0x7fffdfffdf70 ---
KDB: enter: panic
[ thread pid 4025 tid 106761 ]
Stopped at      kdb_enter+0x67: movq    $0,0x163a54e(%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         0xfffffe0096200000
rdx                    0x3ffff
rbx                          0
rsp         0xfffffe00517a86a0
rbp         0xfffffe00517a86c0
rsi                    0x40001
rdi         0xffffffff81137c46  vprintf+0x176
r8                           0
r9          0x8080808080808080
r10         0xfffffe00517a8590
r11              0x1ffaefff59c
r12         0xffffffff82267ac0  ddb_dbbe
r13                          0
r14         0xffffffff81a73d13
r15         0xffffffff81a73d13
rip         0xffffffff8112ec37  kdb_enter+0x67
rflags                    0x86
kdb_enter+0x67: movq    $0,0x163a54e(%rip)
db> show proc
Process 4025 (syz-executor.2) at 0xfffff8002a8f8538:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 789 at 0xfffff800304a6000
 ABI: FreeBSD ELF64
 flag: 0x10000080  flag2: 0
 arguments: /root/syz-executor.2
 reaper: 0xfffff8000452a538 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe00557c39f0
   (map 0xfffffe00557c39f0)
   (map.pmap 0xfffffe00557c3ab0)
   (pmap 0xfffffe00557c3b10)
 threads: 2
104303                   RunQ                                syz-executor.2
106761                   Run     CPU 1                       syz-executor.2
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 4027   782   782     0  R       (threaded)                  syz-executor.0
106231                   Run     CPU 0                       syz-executor.0
106762                   S       connec  0xfffff8002aa90490  syz-executor.0
 4026   797   797     0  R                                   syz-executor.3
 4025   789   789     0  R       (threaded)                  syz-executor.2
104303                   RunQ                                syz-executor.2
106761                   Run     CPU 1                       syz-executor.2
 4024   783   783     0  R       (threaded)                  syz-executor.1
105942                   RunQ                                syz-executor.1
106756                   S       sbwait  0xfffff8002a885cd4  syz-executor.1
106757                   S       sbwait  0xfffff8002abbb574  syz-executor.1
106758                   S       sbwait  0xfffff8002a6be924  syz-executor.1
106759                   S       uwait   0xfffff80030c6da00  syz-executor.1
106760                   S       uwait   0xfffff80030c6d200  syz-executor.1
 3652     1   783     0  S       uwait   0xfffff80030d0c780  syz-executor.1
 3651     1   783     0  S       uwait   0xfffff80004f7c480  syz-executor.1
 3650     1   783     0  S       uwait   0xfffff80030ddd500  syz-executor.1
 3649     1   783     0  S       uwait   0xfffff80030ddd400  syz-executor.1
 3626  3625  3625     0  SV      uwait   0xfffff80030ddd200  syz-executor.0
 3625     1  3625     0  DVs     ppwait  0xfffff80030ab7a20  syz-executor.0
 3488     1  3488    65  Ss      select  0xfffff80030eb77c0  dhclient
 2849     1  2849     0  Ss      select  0xfffff80030eb73c0  dhclient
 2846     1  2846     0  Ss      select  0xfffff80030eb72c0  dhclient
 2827     1  2827    65  Ss      select  0xfffff80030eb7340  dhclient
 2270     1  2270     0  Ss      select  0xfffff80030eb7640  dhclient
 2267     1  2267     0  Ss      select  0xfffff80030eb78c0  dhclient
 2248     1  2248    65  Ss      select  0xfffff80030eb7740  dhclient
 1669     1  1669     0  Ss      select  0xfffff800240cb4c0  dhclient
 1666     1  1666     0  Ss      select  0xfffff80030c6d640  dhclient
 1645     1  1645    65  Ss      select  0xfffff80030ddd940  dhclient
 1044     1  1044     0  Ss      select  0xfffff800240cb2c0  dhclient
 1041     1  1041     0  Ss      select  0xfffff800240cb340  dhclient
  797   780   797     0  Rs                                  syz-executor.3
  789   780   789     0  Ss      nanslp  0xffffffff8273c8e0  syz-executor.2
  783   780   783     0  Ss      nanslp  0xffffffff8273c8e0  syz-executor.1
  782   780   782     0  Ss      nanslp  0xffffffff8273c8e0  syz-executor.0
  780   778   778     0  S       (threaded)                  syz-fuzzer
100114                   S       uwait   0xfffff80004f7c580  syz-fuzzer
100115                   S       uwait   0xfffff80004cfc780  syz-fuzzer
100116                   S       uwait   0xfffff800240cbe00  syz-fuzzer
100117                   S       kqread  0xfffff80004f30000  syz-fuzzer
100118                   S       uwait   0xfffff80004f7c080  syz-fuzzer
100119                   S       uwait   0xfffff80004f7c680  syz-fuzzer
100120                   S       uwait   0xfffff80004f5e280  syz-fuzzer
100121                   S       uwait   0xfffff80004f5e380  syz-fuzzer
100125                   S       uwait   0xfffff80004f5e580  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffff800304a6b20  csh
  776   694   776     0  Ss      select  0xfffff800240cb6c0  sshd
  760     1   760     0  Ss+     ttyin   0xfffff800049d7cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffff80004ced8b0  getty
  758     1   758     0  Ss+     ttyin   0xfffff80004cedcb0  getty
  757     1   757     0  Ss+     ttyin   0xfffff80004cf40b0  getty
  756     1   756     0  Ss+     ttyin   0xfffff80004cf44b0  getty
  755     1   755     0  Ss+     ttyin   0xfffff80004cf48b0  getty
  754     1   754     0  Ss+     ttyin   0xfffff80004cf4cb0  getty
  753     1   753     0  Ss+     ttyin   0xfffff80004c6e0b0  getty
  752     1   752     0  Ss+     ttyin   0xfffff80004c6e4b0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8273c8e1  cron
  694     1   694     0  Ss      select  0xfffff800049dd340  sshd
  507     1   507     0  Ss      select  0xfffff800240cb8c0  syslogd
  436     1   436     0  Ss      select  0xfffff800240cbd40  devd
  435     1   435    65  Ss      select  0xfffff800240cba40  dhclient
  350     1   350     0  Ss      select  0xfffff800240cb940  dhclient
  347     1   347     0  Ss      select  0xfffff800240cbbc0  dhclient
   23     0     0     0  DL      syncer  0xffffffff8282bd50  [syncer]
   22     0     0     0  DL      vlruwt  0xfffff80004e8da70  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100081                   D       qsleep  0xffffffff8282ae00  [bufdaemon]
100088                   D       -       0xffffffff8220ae00  [bufspacedaemon-0]
100098                   D       sdflush 0xfffff80004f84ce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff82852c08  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100079                   D       psleep  0xffffffff82847078  [dom0]
100086                   D       launds  0xffffffff82847084  [laundry: dom0]
100087                   D       umarcl  0xffffffff815c9360  [uma]
   18     0     0     0  DL      -       0xffffffff82570c78  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff82f82828  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff82de23c0  [pf purge]
   15     0     0     0  DL      -       0xffffffff8282845c  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8282845c  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8282845c  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8282845c  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100044                   D       -       0xffffffff82448140  [doneq0]
100045                   D       -       0xffffffff824480c0  [async]
100078                   D       -       0xffffffff82447f90  [scanner]
   14     0     0     0  DL      seqstat 0xfffff8000463c888  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffff8000462ed80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff8000462ed30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff828445a0  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100035                   D       -       0xffffffff8271c120  [g_event]
100036                   D       -       0xffffffff8271c128  [g_up]
100037                   D       -       0xffffffff8271c130  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100028                   D       -       0xfffff80004574600  [thr_0]
100029                   D       -       0xfffff80004574680  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100011                   I                                   [swi6: task queue]
100013                   I                                   [swi6: Giant taskq]
100018                   I                                   [swi5: fast taskq]
100030                   I                                   [swi4: clock (0)]
100031                   I                                   [swi4: clock (1)]
100032                   I                                   [swi1: netisr 0]
100033                   I                                   [swi3: vm]
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                                   [irq10: virtio_pci2]
100061                   I                                   [irq1: atkbd0]
100062                   I                                   [irq12: psm0]
100063                   I                                   [swi0: uart uart++]
100071                   I                                   [swi1: pf send]
100084                   I                                   [swi1: hpts]
100085                   I                                   [swi1: hpts]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffff8000452a538  [init]
   10     0     0     0  DL      audit_w 0xffffffff82844ab0  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8271c6b0  [swapper]
100005                   D       -       0xfffff80004144800  [if_config_tqg_0]
100006                   D       -       0xfffff80004144700  [softirq_0]
100007                   D       -       0xfffff80004144600  [softirq_1]
100008                   D       -       0xfffff80004144500  [if_io_tqg_0]
100009                   D       -       0xfffff80004144400  [if_io_tqg_1]
100010                   D       -       0xfffff8000457a600  [pci_hp taskq]
100012                   D       -       0xfffff8000457a300  [inm_free taskq]
100014                   D       -       0xfffff8000457a000  [linuxkpi_irq_wq]
100015                   D       -       0xfffff80004574e00  [thread taskq]
100016                   D       -       0xfffff80004574d00  [in6m_free taskq]
100017                   D       -       0xfffff80004574c00  [aiod_kick taskq]
100019                   D       -       0xfffff80004574900  [kqueue_ctx taskq]
100020                   D       -       0xfffff80004574800  [linuxkpi_short_wq_0]
100021                   D       -       0xfffff80004574800  [linuxkpi_short_wq_1]
100022                   D       -       0xfffff80004574800  [linuxkpi_short_wq_2]
100023                   D       -       0xfffff80004574800  [linuxkpi_short_wq_3]
100024                   D       -       0xfffff80004574700  [linuxkpi_long_wq_0]
100025                   D       -       0xfffff80004574700  [linuxkpi_long_wq_1]
100026                   D       -       0xfffff80004574700  [linuxkpi_long_wq_2]
100027                   D       -       0xfffff80004574700  [linuxkpi_long_wq_3]
100034                   D       -       0xfffff80004574000  [firmware taskq]
100038                   D       -       0xfffff800045c1d00  [crypto_0]
100039                   D       -       0xfffff800045c1d00  [crypto_1]
100055                   D       -       0xfffff800045c1700  [vtnet0 rxq 0]
100056                   D       -       0xfffff800045c1600  [vtnet0 txq 0]
100057                   D       -       0xfffff800045c1500  [vtnet0 rxq 1]
100058                   D       -       0xfffff800045c1400  [vtnet0 txq 1]
100060                   D       vtbslp  0xfffff80004972100  [virtio_balloon]
100064                   D       -       0xfffff80004973a00  [mca taskq]
100066                   D       -       0xffffffff81e206a1  [deadlkres]
100073                   D       -       0xfffff80004c3c700  [acpi_task_0]
100074                   D       -       0xfffff80004c3c700  [acpi_task_1]
100075                   D       -       0xfffff80004c3c700  [acpi_task_2]
100077                   D       -       0xfffff800045c1c00  [CAM taskq]
db> show all locks
Process 4025 (syz-executor.2) thread 0xfffffe0094ca0020 (106761)
exclusive rw tcpinp (tcpinp) r = 0 (0xfffff8002a06bd78) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_usrreq.c:1809
Process 4024 (syz-executor.1) thread 0xfffffe0094c89ac0 (106758)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xfffff8002a6be8c8) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_sockbuf.c:467
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4216         4340K         4244
          tcp_hpts            5         3201K            5
         sysctloid        33718         1992K        33785
             vtbuf           24         1968K           46
              kobj          332         1328K          492
            newblk           51         1037K         8233
               pcb          467         1028K         6879
          vfscache            3         1025K            3
          inodedep          142          565K         3416
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          154          308K         4113
          filedesc           30          233K         6117
         sctp_stro          217          217K         1615
            acpica         1674          184K        55406
         vnet_data            1          168K            1
         sctp_atcl          436          164K         5157
           tidhash            3          141K            3
           pagedep           11          131K         3129
        tfo_ccache            1          128K            1
            DEVFS1          107          107K          124
               sem            4          106K            4
            linker          294          102K          330
               BPF           46           88K           46
               bus          995           81K         3509
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          508           64K          508
              umtx          374           47K          374
           kdtrace          233           46K        10791
              temp           35           33K         2752
            dirrem          129           33K         3252
         hostcache            1           32K            1
               shm            1           32K            5
            DEVFS3          126           32K          136
               msg            4           30K            4
         sctp_atky          654           28K         6945
              vmem            3           26K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
           pf_rule           15           21K           81
            ifaddr           71           21K           73
        DEVFS_RULE           56           20K           56
          routetbl          136           18K          616
         ufs_mount            5           17K            6
              proc            3           17K            3
          freefile          131           17K         3235
               tty           16           16K           16
           ithread           99           16K           99
           lltable           46           15K          105
            bus-sc           33           14K         1719
       ether_multi          157           13K          175
            KTRACE          100           13K          100
             ifnet            7           13K            7
              kenv           93           12K           93
      eventhandler          133           12K          133
              rman           84           10K          425
              GEOM           60           10K          489
         sctp_timw           38           10K           38
         in6_multi           71            9K           71
         bmsafemap            2            9K         3437
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K           26
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
          freework           31            8K         4198
         pfs_nodes           20            8K           20
     audit_evclass          236            8K          294
         sctp_athm          436            7K         5264
          sctp_map          434            7K         3230
            kqueue           71            7K         4080
              cred           26            7K          240
         taskqueue           60            7K           60
            sglist            5            7K            5
           CAM DEV            3            6K          510
            plimit           24            6K          454
         CAM queue            5            6K         1528
            DEVFSP           80            5K          222
       ufs_dirhash           24            5K           24
          pf_ifnet           11            5K           57
           session           36            5K           51
           pwddesc           69            5K         4028
               UMA          265            5K          265
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K           68
           acpisem           28            4K           28
             selfd           55            4K        60123
             lockf           32            4K          251
             hhook           13            4K           13
       fpukern_ctx            3            3K            3
         proc-args           52            3K          672
          terminal           11            3K           11
            select           19            3K          275
           uidinfo            3            3K           14
          pf_table            1            2K           50
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
            ip6ndp           12            2K           15
          sctp_ifa           14            2K           15
            Unitno           30            2K           47
           CAM XPT           22            2K          543
          freeblks            6            2K         3259
          in_multi            6            2K           12
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
           softdep            1            1K            1
             mkdir            8            1K         6136
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K          212
      NFSD session            1            1K            1
        CAM periph            4            1K          271
          sctp_ifn            6            1K           15
             ipsec            3            1K            3
         newdirblk            6            1K         3068
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
       inpcbpolicy           23            1K         3985
             mount           16            1K           89
          pci_link           10            1K           10
           pf_osfp            6            1K            6
            crypto            4            1K           52
 encap_export_host           12            1K           12
          procdesc            5            1K           18
         sctp_stri            1            1K          399
            diradd            4            1K         3291
          indirdep            2            1K         1420
              pfil            4            1K            4
           CAM SIM            2            1K            2
              cdev            2            1K            2
    chacha20random            1            1K            1
               osd            3            1K           10
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            vnodes            1            1K           10
              ktls            1            1K            1
            feeder            7            1K            7
               iov            3            1K        19354
           tcpfunc            3            1K            3
        loginclass            3            1K            6
            prison            6            1K            6
             linux            5            1K            6
        aesni_data            2            1K            2
           tcp_fsb            2            1K          210
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
             xform            2            1K          226
          CAM path            4            1K         1034
            soname            5            1K         6492
          pmchooks            1            1K            1
          nexusdev            7            1K            7
          filecaps            5            1K          112
          sctp_vrf            1            1K            1
       ip6_msource            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           42
          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
            tcp_do            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K         2285
         sctp_iter            0            0K           19
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K            8
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K           11
         sctp_aadr            0            0K            7
           pf_altq            0            0K            0
           pf_temp            0            0K            0
            mqdata            0            0K            0
       NFSD string            0            0K            0
       NFSD V4lock            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
      NFSD V4state            0            0K            0
     NFSD srvcache            0            0K            0
       msdosfs_fat            0            0K            0
     msdosfs_mount            0            0K            0
      msdosfs_node            0            0K            0
              iavf            0            0K            0
               ixl            0            0K            0
            DEVFS4            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8321    5596      617469       0     254   57004032        0
              mbuf    256    9119    8416     1288067       0     254    4488960        0
           tcp_log    416       0   10098       62222       0     254    4200768        0
              pbuf   2624       0     957           0       0       2    2511168        0
          BUF TRIE    144     354   13114        8519       0      62    1939392        0
        RADIX NODE    144   10861    1512      154150       0      62    1781712        0
       UMA Slabs 0    112   15497      16       15497       0     126    1737456        0
        malloc-384    384    4116       4        4116       0      30    1582080        0
      mbuf_cluster   2048     735       1         735       0     254    1507328        0
        malloc-128    128   11064      65       11226       0     126    1424512        0
       malloc-4096   4096     332       3         647       0       2    1372160        0
         FFS inode   1160     517      29        3760       0       8     633360        0
         sctp_asoc   2288     217      33        1615       0     254     572000        0
       tcp_bbr_map    128       3    4306       91938       0     126     551552        0
       malloc-2048   2048     221      35        3182       0       8     524288        0
        256 Bucket   2048     223       9       20689       0       8     475136        0
         VM OBJECT    264    1361      64       62508       0      30     376200        0
            lkpimm    160       1    2324           1       0      62     372000        0
          lkpicurr    160       2    2323           2       0      62     372000        0
      malloc-16384  16384      18       4        3237       0       1     360448        0
       malloc-4096   4096      79       4        4038       0       2     339968        0
            THREAD   1808     163      24        6762       0       8     338096        0
           sctp_ep   1280     218      43        3179       0     254     334080        0
        malloc-256    256     266     919       15275       0      62     303360        0
             VNODE    448     555      93        3800       0      30     290304        0
         malloc-64     64    4265     145       10369       0     254     282240        0
      malloc-65536  65536       1       3         337       0       1     262144        0
      malloc-65536  65536       4       0           4       0       1     262144        0
      malloc-32768  32768       0       8         178       0       1     262144        0
       malloc-1024   1024     222      34        1638       0      16     262144        0
       malloc-2048   2048       3     123       12056       0       8     258048        0
        malloc-384    384     537      73        5290       0      30     234240        0
         malloc-16     16   14193     307       19148       0     254     232000        0
      malloc-32768  32768       0       7        1177       0       1     229376        0
        malloc-128    128    1456     280       42170       0     126     222208        0
            DEVCTL   1024       0     216         132       0       0     221184        0
         MAP ENTRY     96    1952     274      234683       0     126     213696        0
        sctp_raddr    736     222      64        2512       0     254     210496        0
            socket    944      49     167        8722       0     254     203904        0
             g_bio    408       0     490       37804       0      30     199920        0
        sctp_chunk    152     160    1140        2622       0     254     197600        0
       mbuf_packet    256     201     534       14607       0     254     188160        0
         malloc-32     32    5654     142       10910       0     254     185472        0
         UMA Zones    768     237       2         237       0      16     183552        0
       FFS2 dinode    256     517      53        3760       0      62     145920        0
        malloc-128    128    1085      31        2591       0     126     142848        0
       S VFS Cache    104    1022     343        4397       0     126     141960        0
           VMSPACE   2544      45       9        4004       0       4     137376        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2           8       0       1     131072        0
      malloc-65536  65536       0       2          20       0       1     131072        0
         vmem btag     56    2230      62        2230       0     254     128352        0
        malloc-384    384     181     149        3577       0      30     126720        0
            clpbuf   2624       0      48         686       0      16     125952        0
          ksiginfo    112      67     977         667       0     126     116928        0
       malloc-1024   1024     108       4         128       0      16     114688        0
              PROC   1336      68      16        4027       0       8     112224        0
        128 Bucket   1024      83      24        1717       0      16     109568        0
        malloc-256    256     248     127        7595       0      62      96000        0
        malloc-256    256      34     341        2266       0      62      96000        0
       malloc-4096   4096      23       0         555       0       2      94208        0
       malloc-8192   8192       9       2         138       0       1      90112        0
         filedesc0   1072      69      15        4028       0       8      90048        0
          UMA Kegs    384     222       1         222       0      30      85632        0
        malloc-256    256     240      60        7076       0      62      76800        0
       malloc-4096   4096      15       3         113       0       2      73728        0
         64 Bucket    512      97      39        6479       0      30      69632        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
     udplite_inpcb    488       4     116        3027       0     254      58560        0
        malloc-256    256     111     114        3786       0      62      57600        0
         32 Bucket    256      73     137       10042       0      62      53760        0
       malloc-2048   2048      21       5         393       0       8      53248        0
        malloc-256    256     154      41         271       0      62      49920        0
      malloc-16384  16384       3       0           3       0       1      49152        0
         malloc-64     64     573     183       18351       0     254      48384        0
       malloc-2048   2048       4      18         511       0       8      45056        0
            pcpu-8      8    4785     847        6571       0     254      45056        0
             tcpcb   1064       8      34         561       0     254      44688        0
        malloc-128    128     117     224         476       0     126      43648        0
        malloc-128    128     300      41         469       0     126      43648        0
        malloc-256    256      44     121        4322       0      62      42240        0
           DIRHASH   1024      34       6          34       0      16      40960        0
             NAMEI   1024       0      40       28015       0      16      40960        0
       malloc-8192   8192       5       0           5       0       1      40960        0
       malloc-8192   8192       3       2           5       0       1      40960        0
         malloc-64     64     488     142        1056       0     254      40320        0
        malloc-512    512       5      67         911       0      30      36864        0
             Files     80     239     211       19786       0     126      36000        0
              pipe    744      23      22         609       0      16      33480        0
      malloc-32768  32768       1       0           1       0       1      32768        0
       malloc-4096   4096       4       4        3249       0       2      32768        0
           pcpu-64     64     480      32         480       0     254      32768        0
         TURNSTILE    136     188      22         188       0      62      28560        0
         malloc-64     64     237     204       60475       0     254      28224        0
             KNOTE    160      28     147      183461       0      62      28000        0
            ttyinq    160     135      40         300       0      62      28000        0
          8 Bucket     80      61     289        2154       0     126      28000        0
       malloc-1024   1024      10      14        1555       0      16      24576        0
       malloc-1024   1024      18       6          22       0      16      24576        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-384    384      52       8          52       0      30      23040        0
      tcp_rack_pcb    832       3      24         211       0      16      22464        0
sctp_stream_msg_out    112     126      54         495       0     254      20160        0
               PWD     32      24     606        3132       0     254      20160        0
         malloc-64     64     163     152        8132       0     254      20160        0
        SLEEPQUEUE     88     188      36         188       0     126      19712        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-256    256      58      17         812       0      62      19200        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-2048   2048       2       6         281       0       8      16384        0
       malloc-2048   2048       6       2          10       0       8      16384        0
       malloc-1024   1024      12       4          12       0      16      16384        0
       malloc-1024   1024      11       5          67       0      16      16384        0
         malloc-64     64     136     116         194       0     254      16128        0
         malloc-32     32     419      85         653       0     254      16128        0
         malloc-32     32     126     378        9549       0     254      16128        0
         16 Bucket    144      63      49         693       0      62      16128        0
      vtnet_tx_hdr     24       0     668      483725       0     254      16032        0
         malloc-16     16     748     252        3759       0     254      16000        0
         tcp_inpcb    488       8      24         561       0     254      15616        0
             unpcb    256      20      40        1512       0     254      15360        0
        malloc-384    384      24      16         430       0      30      15360        0
        malloc-384    384      20      20          25       0      30      15360        0
       tcp_bbr_pcb    832       1      17         160       0      16      14976        0
       malloc-4096   4096       0       3          41       0       2      12288        0
       malloc-2048   2048       5       1         196       0       8      12288        0
       malloc-1024   1024       8       4           9       0      16      12288        0
        malloc-512    512       3      21         207       0      30      12288        0
        malloc-512    512      14      10         224       0      30      12288        0
        sctp_laddr     48     136     116         855       0     254      12096        0
         malloc-32     32     117     261        3289       0     254      12096        0
          2 Bucket     32      60     318        1100       0     254      12096        0
        malloc-128    128      57      36        3146       0     126      11904        0
             ripcb    488       5      19         171       0     254      11712        0
         udp_inpcb    488       6      18         226       0     254      11712        0
              kenv    258      15      30        1065       0      30      11610        0
     routing nhops    256      27      18          35       0      62      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-2048   2048       1       3         127       0       8       8192        0
       malloc-1024   1024       0       8           9       0      16       8192        0
        malloc-512    512       8       8           8       0      30       8192        0
           pf tags    104       3      75          41       0     126       8112        0
           rtentry    176      31      15          35       0      62       8096        0
              PGRP     88      36      56          56       0     126       8096        0
          rl_entry     40      86     116          86       0     254       8080        0
      tcp_rack_map    112       6      66         364       0     126       8064        0
             udpcb     32      10     242        3253       0     254       8064        0
         malloc-64     64       8     118           9       0     254       8064        0
         malloc-64     64      38      88         790       0     254       8064        0
         malloc-32     32       6     246          38       0     254       8064        0
         malloc-32     32      37     215         776       0     254       8064        0
         malloc-32     32      36     216         387       0     254       8064        0
          4 Bucket     48       6     162         117       0     254       8064        0
         malloc-16     16       1     499           4       0     254       8000        0
         malloc-16     16      20     480          59       0     254       8000        0
         malloc-16     16      28     472          29       0     254       8000        0
         malloc-16     16     188     312        1472       0     254       8000        0
         malloc-16     16      36     464       28512       0     254       8000        0
         malloc-16     16      14     486        1637       0     254       8000        0
        malloc-128    128       9      53          38       0     126       7936        0
        malloc-128    128      13      49         161       0     126       7936        0
        sctp_readq    152       0      52         116       0     254       7904        0
        malloc-384    384       0      20          46       0      30       7680        0
        malloc-384    384       1      19          32       0      30       7680        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       7      55           7       0     126       6448        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
        malloc-512    512       0       8           2       0      30       4096        0
        malloc-512    512       0       8           7       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
         malloc-32     32       0     126           2       0     254       4032        0
       UMA Slabs 1    176      10      12          10       0      62       3872        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      12      27          12       0       0       3744        0
              vmem   1856       1       1           1       0       8       3712        0
           SMR CPU     32       3      60           3       0     254       2016        0
        SMR SHARED     24       3      60           3       0     254       1512        0
       FFS1 dinode    128       0       0           0       0     126          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    296       0       0           0       0     254          0        0
          pf mtags     48       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
          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    584       0       0           0       0      16          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
        TMPFS node    224       0       0           0       0      62          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
           cryptop    280       0       0           0       0      30          0        0
  linux_dma_object     24       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
         domainset     40       0       0           0       0     254          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/05/07 09:07 freebsd-src fb53b42e36a9 f6da8120 console log report ci-freebsd-main panic: Most recently used by in6_mfilter
2021/05/07 08:49 freebsd-src fb53b42e36a9 f6da8120 console log report ci-freebsd-main panic: Most recently used by in6_mfilter
2021/05/07 07:27 freebsd-src fb53b42e36a9 06585184 console log report ci-freebsd-main panic: Most recently used by in6_mfilter
* Struck through repros no longer work on HEAD.