syzbot


panic: Assertion p2->p_ktrioparms == NULL failed at /syzkaller/managers/main/kernel/sys/kern/kern_ktrace.c:LINE

Status: fixed on 2021/05/28 01:51
Reported-by: syzbot+7c98fcf84a4439f2817f@syzkaller.appspotmail.com
Fix commit: f3851b235b23 ktrace: Fix a race with fork()
First crash: 623d, last: 623d

Sample crash report:
panic: Assertion p2->p_ktrioparms == NULL failed at /syzkaller/managers/main/kernel/sys/kern/kern_ktrace.c:666
cpuid = 0
time = 1621841951
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe009c804890
vpanic() at vpanic+0x1c7/frame 0xfffffe009c8048f0
panic() at panic+0x43/frame 0xfffffe009c804950
ktrprocfork() at ktrprocfork+0x157/frame 0xfffffe009c804980
fork1() at fork1+0x1ae5/frame 0xfffffe009c804a50
sys_fork() at sys_fork+0x5e/frame 0xfffffe009c804ab0
amd64_syscall() at amd64_syscall+0x247/frame 0xfffffe009c804bf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe009c804bf0
--- syscall (0, FreeBSD ELF64, nosys), rip = 0x36e8fa, rsp = 0x7fffffffe428, rbp = 0x7fffffffe480 ---
KDB: enter: panic
[ thread pid 63285 tid 157539 ]
Stopped at      kdb_enter+0x67: movq    $0,0x163739e(%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         0xffffffff8113aa40  vprintf+0x140
rdx                        0x1
rbx                          0
rsp         0xfffffe009c804870
rbp         0xfffffe009c804890
rsi                          0
rdi         0xffffffff8113aa76  vprintf+0x176
r8                           0
r9          0x8080808080808080
r10         0xfffffe009c804760
r11              0x1ff63fff59c
r12         0xffffffff82267b90  ddb_dbbe
r13                          0
r14         0xffffffff81a74c80
r15         0xffffffff81a74c80
rip         0xffffffff81131a67  kdb_enter+0x67
rflags                    0x82
kdb_enter+0x67: movq    $0,0x163739e(%rip)
db> show proc
Process 63285 (syz-executor.1) at 0xfffff80015e41000:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 780 at 0xfffff8004149ea60
 ABI: FreeBSD ELF64
 flag: 0x10004000  flag2: 0
 arguments: /root/syz-executor.1
 reaper: 0xfffff80004bc7530 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe009515a3e0
   (map 0xfffffe009515a3e0)
   (map.pmap 0xfffffe009515a4a0)
   (pmap 0xfffffe009515a500)
 threads: 1
157539                   Run     CPU 0                       syz-executor.1
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
25251 63285 63285     0  N                                   syz-executor.1
25250 63287 63287     0  R       (threaded)                  syz-executor.2
255854                   Run     CPU 1                       syz-executor.2
256861                   S       uwait   0xfffff80041bb3b00  syz-executor.2
68322     1 68322    65  Ss      select  0xfffff80041c5d140  dhclient
65884     1 65884     0  Ss      select  0xfffff8004130f740  dhclient
65881     1 65881     0  Ss      select  0xfffff80041d0ea40  dhclient
65839     1 65839    65  Ss      select  0xfffff80041d755c0  dhclient
63329     1 63329     0  Ss      select  0xfffff80041d75a40  dhclient
63287   780 63287     0  Ss      nanslp  0xffffffff8273c560  syz-executor.2
63285   780 63285     0  RLs     CPU 0                       syz-executor.1
63284     1 63284     0  Ss      select  0xfffff8003266c8c0  dhclient
26645     1 26645    65  Ss      select  0xfffff80041d752c0  dhclient
19309     1 19309     0  Ss      select  0xfffff80041e2ca40  dhclient
19306     1 19306     0  Ss      select  0xfffff80041beb8c0  dhclient
10610     1 10610    65  Ss      select  0xfffff80041a55740  dhclient
  839     1   839     0  Ss      select  0xfffff80041b59bc0  dhclient
  828     1   828     0  Ss      select  0xfffff80041a55140  dhclient
  794   780   794     0  Rs                                  syz-executor.3
  782   780   782     0  Rs                                  syz-executor.0
  780   778   778     0  R       (threaded)                  syz-fuzzer
100118                   S       uwait   0xfffff800412dcd00  syz-fuzzer
100119                   S       nanslp  0xffffffff8273c561  syz-fuzzer
100120                   S       uwait   0xfffff800413d4b00  syz-fuzzer
100121                   S       uwait   0xfffff800413d4d00  syz-fuzzer
100122                   S       uwait   0xfffff800419e9300  syz-fuzzer
100123                   S       uwait   0xfffff800419e9500  syz-fuzzer
100124                   S       uwait   0xfffff800419e9700  syz-fuzzer
100125                   RunQ                                syz-fuzzer
100126                   S       kqread  0xfffff800412b3700  syz-fuzzer
112837                   S       uwait   0xfffff80015d17100  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffff80015e4eb10  csh
  776   694   776     0  Ss      select  0xfffff8004133e2c0  sshd
  760     1   760     0  Ss+     ttyin   0xfffff800153e7cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffff80015a784b0  getty
  758     1   758     0  Ss+     ttyin   0xfffff80015a78cb0  getty
  757     1   757     0  Ss+     ttyin   0xfffff80015a7d4b0  getty
  756     1   756     0  Ss+     ttyin   0xfffff80015a7dcb0  getty
  755     1   755     0  Ss+     ttyin   0xfffff80015a7f4b0  getty
  754     1   754     0  Ss+     ttyin   0xfffff80015a7fcb0  getty
  753     1   753     0  Ss+     ttyin   0xfffff80015a094b0  getty
  752     1   752     0  Ss+     ttyin   0xfffff80015a09cb0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8273c561  cron
  694     1   694     0  Ss      select  0xfffff80015d932c0  sshd
  507     1   507     0  Ss      select  0xfffff800412f6d40  syslogd
  436     1   436     0  Ss      select  0xfffff80015de18c0  devd
  435     1   435    65  Ss      select  0xfffff80015d93bc0  dhclient
  350     1   350     0  Ss      select  0xfffff80015de1d40  dhclient
  347     1   347     0  Ss      select  0xfffff80015d93ec0  dhclient
   23     0     0     0  DL      vlruwt  0xfffff80015a61000  [vnlru]
   22     0     0     0  DL      syncer  0xffffffff8282b9d0  [syncer]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100081                   D       qsleep  0xffffffff8282aa80  [bufdaemon]
100088                   D       -       0xffffffff8220ae80  [bufspacedaemon-0]
100095                   D       sdflush 0xfffff80015d61ce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff828528c8  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100079                   D       psleep  0xffffffff82846d38  [dom0]
100086                   D       launds  0xffffffff82846d44  [laundry: dom0]
100087                   D       umarcl  0xffffffff815cd300  [uma]
   18     0     0     0  DL      -       0xffffffff82570908  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff82fb8828  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff82d853c0  [pf purge]
   15     0     0     0  DL      -       0xffffffff828280dc  [soaiod4]
    9     0     0     0  DL      -       0xffffffff828280dc  [soaiod3]
    8     0     0     0  DL      -       0xffffffff828280dc  [soaiod2]
    7     0     0     0  DL      -       0xffffffff828280dc  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100044                   D       -       0xffffffff82447dc0  [doneq0]
100045                   D       -       0xffffffff82447d40  [async]
100078                   D       -       0xffffffff82447c10  [scanner]
   14     0     0     0  DL      seqstat 0xfffff80004daa488  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffff80004d2b380  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff80004d2b330  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff82844220  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100035                   D       -       0xffffffff8271bda0  [g_event]
100036                   D       -       0xffffffff8271bda8  [g_up]
100037                   D       -       0xffffffff8271bdb0  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100028                   D       -       0xfffff80004c3bd00  [thr_0]
100029                   D       -       0xfffff80004c3bd80  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100012                   I                                   [swi5: fast taskq]
100015                   I                                   [swi6: task queue]
100017                   I                                   [swi6: Giant 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    0xfffff80004bc7530  [init]
   10     0     0     0  DL      audit_w 0xffffffff82844730  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8271c330  [swapper]
100005                   D       -       0xfffff80004bbd100  [if_config_tqg_0]
100006                   D       -       0xfffff80004c64900  [softirq_0]
100007                   D       -       0xfffff80004c64100  [softirq_1]
100008                   D       -       0xfffff80004c62900  [if_io_tqg_0]
100009                   D       -       0xfffff80004c62100  [if_io_tqg_1]
100010                   D       -       0xfffff8000443d900  [in6m_free taskq]
100011                   D       -       0xfffff8000443d500  [aiod_kick taskq]
100013                   D       -       0xfffff80004c5ad00  [kqueue_ctx taskq]
100014                   D       -       0xfffff80004c5a900  [pci_hp taskq]
100016                   D       -       0xfffff80004c5a100  [inm_free taskq]
100018                   D       -       0xfffff80004c55900  [linuxkpi_irq_wq]
100019                   D       -       0xfffff80004c55500  [thread taskq]
100020                   D       -       0xfffff80004c55100  [linuxkpi_short_wq_0]
100021                   D       -       0xfffff80004c55100  [linuxkpi_short_wq_1]
100022                   D       -       0xfffff80004c55100  [linuxkpi_short_wq_2]
100023                   D       -       0xfffff80004c55100  [linuxkpi_short_wq_3]
100024                   D       -       0xfffff80004c4dd00  [linuxkpi_long_wq_0]
100025                   D       -       0xfffff80004c4dd00  [linuxkpi_long_wq_1]
100026                   D       -       0xfffff80004c4dd00  [linuxkpi_long_wq_2]
100027                   D       -       0xfffff80004c4dd00  [linuxkpi_long_wq_3]
100034                   D       -       0xfffff80004c4d900  [firmware taskq]
100038                   D       -       0xfffff80004c4d500  [crypto_0]
100039                   D       -       0xfffff80004c4d500  [crypto_1]
100055                   D       -       0xfffff8001534cd00  [vtnet0 rxq 0]
100056                   D       -       0xfffff8001534c900  [vtnet0 txq 0]
100057                   D       -       0xfffff8001534c500  [vtnet0 rxq 1]
100058                   D       -       0xfffff8001534c100  [vtnet0 txq 1]
100060                   D       vtbslp  0xfffff80015369300  [virtio_balloon]
100064                   D       -       0xfffff80015427d00  [mca taskq]
100066                   D       -       0xffffffff81e21631  [deadlkres]
100074                   D       -       0xfffff80015a10d00  [acpi_task_0]
100075                   D       -       0xfffff80015a10d00  [acpi_task_1]
100076                   D       -       0xfffff80015a10d00  [acpi_task_2]
100077                   D       -       0xfffff80004c4d100  [CAM taskq]
db> show all locks
Process 25250 (syz-executor.2) thread 0xfffffe00950a5020 (255854)
shared rw vm object (vm object) r = 0 (0xfffff80041ec0840) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_fault.c:1332
shared sx vm map (user) (vm map (user)) r = 0 (0xfffffe0095045440) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_map.c:4935
Process 794 (syz-executor.3) thread 0xfffffe00950241e0 (100129)
exclusive sleep mutex pmap (pmap) r = 0 (0xfffffe0095027500) locked @ /syzkaller/managers/main/kernel/sys/amd64/amd64/pmap.c:7713
exclusive sleep mutex pmap (pmap) r = 0 (0xfffffe0094fd3500) locked @ /syzkaller/managers/main/kernel/sys/amd64/amd64/pmap.c:7712
exclusive sx vm map (user) (vm map (user)) r = 0 (0xfffffe0094fd3440) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_map.c:4272
exclusive sx vm map (user) (vm map (user)) r = 0 (0xfffffe0095027440) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_map.c:4268
db> show malloc
              Type        InUse        MemUse     Requests
         sysctloid        34288        12858K        34355
           pf_hash            5        11560K            5
            devbuf         4216         6982K         4244
          tcp_hpts            5         3219K            5
              kobj          328         2624K          488
             vtbuf           24         2064K           46
            newblk           14         1039K       125552
          vfscache            3         1035K            3
          inodedep          401          920K       133103
            acpica         1674          649K        55230
               pcb           30          623K        82278
           subproc          143          570K       128143
           callout            2          528K            2
         ufs_quota            1          520K            1
          vfs_hash            1          520K            1
          routetbl         1226          481K         3640
              intr            4          480K            4
               bus          990          378K         3499
               BPF           46          337K           94
            linker          348          270K          466
            DEVFS1          107          214K          124
          filedesc           14          211K       248030
            dirrem          388          194K       128160
            module          512          192K          512
           kdtrace          220          182K       282064
         vnet_data            1          176K            1
           tidhash            3          164K            3
              umtx          374          164K          374
          freefile          390          147K       128140
           pagedep            9          140K       123922
        tfo_ccache            1          136K            1
               sem            4          120K            4
              vmem            3          112K            7
               UMA          270          102K          270
     audit_evclass          236           89K          294
          mtx_pool            2           80K            2
              temp           35           77K        39343
          syncache            1           76K            1
               msg            4           68K            4
            ifaddr           72           68K          135
         sctp_timw          131           66K          131
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            DEVFS3          126           63K          136
       ether_multi          162           61K          694
        gtaskqueue           18           57K           18
        DEVFS_RULE           56           54K           56
              kenv           95           52K           95
      eventhandler          133           50K          133
           ithread           99           43K           99
              rman           84           42K          425
            KTRACE          101           38K        11832
         taskqueue           60           36K           60
           lltable           41           35K          431
              proc            3           34K            3
         ufs_mount            5           34K            6
            bus-sc           33           34K         1710
         in6_multi           77           33K          349
           devstat            4           33K            4
         hostcache            1           32K            1
               tty           16           32K           16
               shm            1           32K         4723
            kqueue           63           32K       125205
            DEVFSP           80           30K        19256
              GEOM           60           29K          489
            kbdmux            6           28K            6
              cred           26           26K          469
             ifnet            7           25K            7
            plimit           24           24K          842
          kcovinfo           64           24K          391
           pwddesc           61           23K       125201
         CAM queue            5           21K         1528
             selfd           55           21K      1534096
         pfs_nodes           20           20K           20
         proc-args           52           20K         1222
              UART           12           18K           12
           session           35           18K         1187
         bmsafemap            3           17K       130389
              ksem            1           16K            1
               rpc            2           16K            2
             shmfd            1           16K         2588
       pfs_vncache            1           16K            1
       ufs_dirhash           24           14K           24
            ip6ndp           29           14K           70
            sglist            5           13K            5
             lockf           34           13K         1315
               MCA           32           12K           32
           CAM DEV            3           12K          510
                vt           11           11K           11
           acpisem           28           11K           28
           CAM XPT           22           11K          543
            Unitno           27           11K           47
           uidinfo            3            9K           21
          pf_ifnet           10            9K           19
           memdesc            1            8K            1
         ipsec-saq            2            8K            2
             evdev            4            8K            4
           acpidev           20            8K           20
             hhook           15            8K           17
            select           19            8K           82
             mount           16            7K           90
       fpukern_ctx            3            6K            3
          sctp_ifa           15            6K           71
       inpcbpolicy           15            6K       101934
          terminal           11            6K           11
       ipsecpolicy            2            5K            2
 encap_export_host           12            5K           12
             clone            9            5K            9
          freework            9            5K       124534
        local_apic            1            4K            1
           io_apic            1            4K            1
          freeblks            8            4K       124469
            sahead            1            4K            1
          secasvar            1            4K            1
             nhops            6            4K            8
          pci_link           10            4K           10
               msi            9            4K            9
             DEVFS            9            4K           10
               tun            7            4K            7
               osd            8            4K        74106
             ipsec            3            3K            3
             mkdir            8            3K       247794
          in_multi            6            3K           28
          nexusdev            7            3K            7
            feeder            7            3K            7
          procdesc            5            3K           26
          sctp_ifn            6            3K           71
               mld            6            3K            6
              igmp            6            3K            6
         toponodes            6            3K            6
            prison            6            3K            6
            isadev            6            3K            6
         sctp_atcl            2            2K        33974
         sctp_stro            1            2K         6460
           softdep            1            2K            1
       vnodemarker            2            2K          182
      NFSD session            1            2K            1
            diradd            5            2K       128282
             linux            5            2K            6
        CAM periph            4            2K          271
          filecaps            5            2K         1262
            crypto            4            2K            4
         newdirblk            4            2K       123897
          freefrag            4            2K           74
              pfil            4            2K            4
          CAM path            4            2K         1034
            soname            4            2K        80327
         sctp_atky            3            2K        40434
           tcpfunc            3            2K            3
        loginclass            3            2K           65
    chacha20random            1            1K            1
            vnodes            1            1K            1
           CAM SIM            2            1K            2
              ktls            1            1K            1
              cdev            2            1K            2
        aesni_data            2            1K            2
         sctp_athm            2            1K        34163
          sctp_map            2            1K        12920
              cpus            2            1K            2
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
             xform            2            1K        20220
           entropy            2            1K           78
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
          pmchooks            1            1K            1
          sctp_vrf            1            1K            1
            apmdev            1            1K            1
 CAM I/O Scheduler            1            1K            1
    vnet_data_free            1            1K            1
              vnet            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
          acpiintr            1            1K            1
               pmc            1            1K            1
        cubic data            0            0K           97
            tcp_do            0            0K            0
           tcp_fsb            0            0K         3599
        sctp_mcore            0            0K            0
        sctp_socko            0            0K        17366
         sctp_iter            0            0K           64
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K           64
         sctp_aadr            0            0K            1
         sctp_stri            0            0K            0
        vegas data            0            0K           27
            mqdata            0            0K            0
         htcp data            0            0K           49
        dctcp data            0            0K           60
          chd data            0            0K           30
          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
          cdg data            0            0K           28
       NFSD V4lock            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
      NFSD V4state            0            0K            0
     NFSD srvcache            0            0K            0
       msdosfs_fat            0            0K            0
     msdosfs_mount            0            0K            0
      msdosfs_node            0            0K            0
              iavf            0            0K            0
               ixl            0            0K            0
            DEVFS4            0            0K            0
            DEVFS2            0            0K            0
            gntdev            0            0K            0
       privcmd_dev            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
             axgbe            0            0K            0
        evtchn_dev            0            0K            0
          xenstore            0            0K            0
         ciss_data            0            0K            0
         BACKLIGHT            0            0K            0
               xnb            0            0K            0
              xbbd            0            0K            0
               xbd            0            0K            0
           Balloon            0            0K            0
          sysmouse            0            0K            0
            vtfont            0            0K            0
          xen_intr            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320     986      151290       0     254   38117376        0
        malloc-384    384   34466    1384      151552       0      30   13766400        0
       malloc-1024   1024    4588    3920      167124       0      16    8712192        0
       malloc-8192   8192      65     675      152836       0       3    6062080        0
       malloc-1024   1024      34    3234       62476       0      16    3346432        0
       malloc-8192   8192     329       6         598       0       1    2744320        0
              pbuf   2624       0     973           0       0       2    2553152        0
              mbuf    256    8955     840      618936       0     254    2507520        0
       malloc-1024   1024     312    2028      222569       0      16    2396160        0
        malloc-512    512     485    3947      259255       0      30    2269184        0
        malloc-384    384    2065    3385      508710       0      30    2092800        0
        malloc-384    384    1222    3948     1796330       0      31    1985280        0
          BUF TRIE    144     204   13264        6792       0      62    1939392        0
       UMA Slabs 0    112   16026      27       16167       0     126    1797936        0
         sctp_asoc   2288       1     759        6460       0     254    1738880        0
       malloc-2048   2048     111     679        7080       0       8    1617920        0
      mbuf_cluster   2048     690       2         966       0     254    1417216        0
           sctp_ep   1280       1     782       27514       0     254    1002240        0
        RADIX NODE    144    5634     523     3442342       0      66     886608        0
        malloc-384    384    2000     100      360683       0      30     806400        0
         FFS inode   1160     599      59      128740       0      11     763280        0
        sctp_raddr    736       1     758        6460       0     254     558624        0
             tcpcb   1064       4     514       74094       0     254     551152        0
        malloc-384    384    1263     127      250581       0      30     533760        0
            socket    944      40     512      135680       0     254     521088        0
         VM OBJECT    264    1508     157     1792312       0      31     439560        0
        malloc-512    512     257     599      125860       0      30     438272        0
      malloc-32768  32768       7       6      124134       0       1     425984        0
      malloc-16384  16384      21       2          45       0       1     376832        0
            lkpimm    160       1    2324           1       0      62     372000        0
          lkpicurr    160       2    2323           2       0      62     372000        0
            THREAD   1808     157      30      156861       0       8     338096        0
      malloc-65536  65536       5       0           6       0       1     327680        0
       malloc-4096   4096      14      66       14114       0       2     327680        0
             VNODE    448     637      92      128780       0      30     326592        0
        256 Bucket   2048     114      20       15153       0       8     274432        0
            DEVCTL   1024       0     216         170       0       0     221184        0
         MAP ENTRY     96    1580     688     6905841       0     127     217728        0
         tcp_inpcb    488       4     436       74094       0     254     214720        0
         vmem btag     56    3677      55        3686       0     254     208992        0
        malloc-512    512     342      66      128257       0      30     208896        0
      malloc-65536  65536       3       0           3       0       1     196608        0
      malloc-65536  65536       1       2         178       0       1     196608        0
      malloc-16384  16384      10       2          23       0       1     196608        0
         UMA Zones    768     242       2         242       0      16     187392        0
      malloc-16384  16384       9       2         267       0       1     180224        0
       mbuf_packet    256     129     561      141223       0     254     176640        0
       FFS2 dinode    256     599      76      128739       0      62     172800        0
       S VFS Cache    104    1107     375      135651       0     126     154128        0
       malloc-8192   8192      12       6      125061       0       1     147456        0
        malloc-384    384     301      49        2366       0      30     134400        0
      malloc-32768  32768       3       1          19       0       1     131072        0
      malloc-16384  16384       3       5         127       0       1     131072        0
       malloc-8192   8192      13       3         774       0       1     131072        0
        malloc-384    384     285      55       66706       0      30     130560        0
           VMSPACE   2544      39      12      125180       0       4     129744        0
             g_bio    408       0     310       49215       0      30     126480        0
        sctp_laddr     48       4    2600       15997       0     254     124992        0
         32 Bucket    256     374      91       57737       0      62     119040        0
          ksiginfo    112      66     978        8478       0     126     116928        0
        sctp_chunk    152       1     727        1211       0     254     110656        0
              PROC   1328      61      20      125201       0       8     107568        0
         16 Bucket    144     579     149       23314       0      62     104832        0
       malloc-1024   1024      58      38         515       0      16      98304        0
       malloc-8192   8192       4       7        5866       0       1      90112        0
         64 Bucket    512     105      71       49311       0      30      90112        0
         filedesc0   1072      61      23      125201       0       8      90048        0
          UMA Kegs    384     227       6         227       0      30      89472        0
            clpbuf   2624       0      32          23       0      16      83968        0
             ripcb    488       5     163       14164       0     254      81984        0
      malloc-16384  16384       3       2         125       0       1      81920        0
        malloc-512    512     134      18         536       0      30      77824        0
        128 Bucket   1024      42      29       29077       0      16      72704        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-16384  16384       4       0           4       0       1      65536        0
     udplite_inpcb    488       0     128        6382       0     254      62464        0
       malloc-1024   1024      45      15        2183       0      16      61440        0
        malloc-384    384      96      64      129003       0      30      61440        0
         udp_inpcb    488       6     114        7294       0     254      58560        0
       malloc-4096   4096      10       3          58       0       2      53248        0
        malloc-512    512      16      88      132494       0      30      53248        0
        malloc-512    512      26      70      125757       0      30      49152        0
       malloc-4096   4096       8       3        2598       0       2      45056        0
       malloc-2048   2048       2      20         510       0       8      45056        0
              pipe    744      23      37       22735       0      16      44640        0
             NAMEI   1024       1      39      590785       0      16      40960        0
       malloc-1024   1024       7      33         635       0      16      40960        0
            pcpu-8      8    4699     421        5259       0     254      40960        0
             Files     80     233     267      357359       0     126      40000        0
           DIRHASH   1024      34       2          34       0      16      36864        0
       malloc-2048   2048       4      14         203       0       8      36864        0
       malloc-2048   2048      14       4        2236       0       8      36864        0
        malloc-512    512      33      39         125       0      30      36864        0
             unpcb    256      20     115        6105       0     254      34560        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
       malloc-8192   8192       0       4          23       0       1      32768        0
       malloc-2048   2048      16       0          16       0       8      32768        0
       malloc-2048   2048      10       6          14       0       8      32768        0
        malloc-512    512      21      43       11878       0      30      32768        0
           pcpu-64     64     486      26         486       0     254      32768        0
       tcp_bbr_map    128       0     248        3621       0     126      31744        0
       tcp_bbr_pcb    832       0      36        2932       0      16      29952        0
      tcp_rack_pcb    832       0      36        3599       0      16      29952        0
       malloc-4096   4096       1       6         106       0       2      28672        0
       malloc-4096   4096       2       5         610       0       2      28672        0
         TURNSTILE    136     188      22         188       0      62      28560        0
               PWD     32      19     863      124047       0     254      28224        0
             KNOTE    160      28     147     1132190       0      62      28000        0
            itimer    352       0      77        7432       0      30      27104        0
       malloc-4096   4096       4       2          33       0       2      24576        0
    ertt_txseginfo     40       0     606      164102       0     254      24240        0
sctp_stream_msg_out    112       0     216        1621       0     254      24192        0
      tcp_rack_map    112       0     216        5652       0     126      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
       malloc-4096   4096       0       5          51       0       2      20480        0
       malloc-1024   1024      11       9          98       0      16      20480        0
              ertt     72       4     276       74094       0     126      20160        0
          4 Bucket     48     178     242        8231       0     254      20160        0
          2 Bucket     32     102     528       23574       0     254      20160        0
          8 Bucket     80     121     129        7458       0     126      20000        0
        SLEEPQUEUE     88     188      36         188       0     126      19712        0
       Mountpoints   2752       2       5           2       0       4      19264        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-2048   2048       7       1           7       0       8      16384        0
      vtnet_tx_hdr     24       0     668      165972       0     254      16032        0
           rtentry    176      32      37         129       0      62      12144        0
             udpcb     32       6     372       13676       0     254      12096        0
              kenv    258      15      30        1094       0      30      11610        0
     routing nhops    256      27      18         129       0      62      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-2048   2048       1       3           9       0       8       8192        0
       malloc-1024   1024       0       8         167       0      16       8192        0
    tcp_log_bucket    176       0      46          20       0      62       8096        0
              PGRP     88      35      57        1583       0     126       8096        0
          rl_entry     40      86     116          86       0     254       8080        0
      tcp_log_node    120       0      66          58       0     126       7920        0
        sctp_readq    152       0      52          40       0     254       7904        0
           tcp_log    416       0      18          37       0     254       7488        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
           pcpu-16     16       7     249           7       0     254       4096        0
             tcptw     88       0      46           2       0     254       4048        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
       UMA Slabs 1    176       9      13           9       0      62       3872        0
       L VFS Cache    320       0      12           2       0      30       3840        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
            da_ccb    544       0       0           0       0      16          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   cdg_qdiffsample     16       0       0           0       0     254          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    304       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
          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
               ipq     56       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          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
        TMPFS node    224       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
     LTS VFS Cache    360       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
           cryptop    280       0       0           0       0      30          0        0
  linux_dma_object     24       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
         domainset     40       0       0           0       0     254          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-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-256    256       0       0           0       0      62          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-256    256       0       0           0       0      62          0        0
        malloc-128    128       0       0           0       0     126          0        0
        malloc-128    128       0       0           0       0     126          0        0
        malloc-128    128       0       0           0       0     126          0        0
        malloc-128    128       0       0           0       0     126          0        0
        malloc-128    128       0       0           0       0     126          0        0
        malloc-128    128       0       0           0       0     126          0        0
        malloc-128    128       0       0           0       0     126          0        0
        malloc-128    128       0       0           0       0     126          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-64     64       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2021/05/24 07:37 freebsd-src a269183875f6 3c7fef33 console log report panic: Assertion p2->p_ktrioparms == NULL failed at /syzkaller/managers/main/kernel/sys/kern/kern_ktrace.c:LINE
* Struck through repros no longer work on HEAD.