syzbot


Fatal trap 12: page fault in rack_process_to_cumack

Status: closed as dup on 2021/05/21 13:27
Reported-by: syzbot+f449aa8aaddc13a433e1@syzkaller.appspotmail.com
First crash: 572d, last: 572d
Duplicate of (1):
Title Repro Cause bisect Fix bisect Count Last Reported
panic: Memory modified after free ADDR(4096) val=ADDR @ ADDR C 1 572d 572d
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd Fatal trap 12: page fault in rack_process_to_cumack (2) syz 3 564d 565d 2/2 fixed on 2021/05/26 06:11

Sample crash report:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0x18
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff82f76e5a
stack pointer	        = 0x28:0xfffffe0003783200
frame pointer	        = 0x28:0xfffffe0003783260
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 12 (swi1: netisr 0)
trap number		= 12
panic: page fault
cpuid = 0
time = 1621195455
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0003782e60
vpanic() at vpanic+0x1c7/frame 0xfffffe0003782ec0
panic() at panic+0x43/frame 0xfffffe0003782f20
trap_fatal() at trap_fatal+0x4cd/frame 0xfffffe0003782fa0
trap_pfault() at trap_pfault+0xd4/frame 0xfffffe0003783010
trap() at trap+0x41d/frame 0xfffffe0003783130
calltrap() at calltrap+0x8/frame 0xfffffe0003783130
--- trap 0xc, rip = 0xffffffff82f76e5a, rsp = 0xfffffe0003783200, rbp = 0xfffffe0003783260 ---
rack_process_to_cumack() at rack_process_to_cumack+0x60a/frame 0xfffffe0003783260
rack_log_ack() at rack_log_ack+0x50c/frame 0xfffffe00037833a0
rack_process_ack() at rack_process_ack+0x3b8/frame 0xfffffe00037834a0
rack_do_syn_recv() at rack_do_syn_recv+0xe36/frame 0xfffffe00037835d0
rack_do_segment_nounlock() at rack_do_segment_nounlock+0x2649/frame 0xfffffe00037837d0
rack_do_segment() at rack_do_segment+0x121/frame 0xfffffe0003783850
tcp_input_with_port() at tcp_input_with_port+0x13d5/frame 0xfffffe00037839b0
tcp_input() at tcp_input+0x1f/frame 0xfffffe00037839d0
ip_input() at ip_input+0x38b/frame 0xfffffe0003783a90
swi_net() at swi_net+0x20d/frame 0xfffffe0003783b10
ithread_loop() at ithread_loop+0x33f/frame 0xfffffe0003783bb0
fork_exit() at fork_exit+0xb3/frame 0xfffffe0003783bf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0003783bf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100030 ]
Stopped at      kdb_enter+0x67: movq    $0,0x163a0ee(%rip)
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         0xffffffff81138070  vprintf+0x140
rdx                        0x1
rbx                          0
rsp         0xfffffe0003782e40
rbp         0xfffffe0003782e60
rsi                          0
rdi         0xffffffff811380a6  vprintf+0x176
r8                           0
r9          0x8080808080808080
r10         0xfffffe0003782d30
r11              0x1fffcfff59c
r12         0xffffffff82267ac0  ddb_dbbe
r13                          0
r14         0xffffffff81a75f09
r15         0xffffffff81a75f09
rip         0xffffffff8112f097  kdb_enter+0x67
rflags                    0x86
kdb_enter+0x67: movq    $0,0x163a0ee(%rip)
db> show proc
Process 12 (intr) at 0xfffff80004c5ea70:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff8271c6b0
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff8271c6b0 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff8271d330
   (map 0xffffffff8271d330)
   (map.pmap 0xffffffff8271d3f0)
   (pmap 0xffffffff8271d450)
 threads: 23
100011                   I                                   [swi5: fast taskq]
100014                   I                                   [swi6: task queue]
100016                   I                                   [swi6: Giant taskq]
100030                   Run     CPU 0                       [swi1: netisr 0]
100031                   I                                   [swi3: vm]
100032                   I                                   [swi4: clock (0)]
100033                   I                                   [swi4: clock (1)]
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]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
15916   785   785     0  R       (threaded)                  syz-executor.0
111056                   RunQ                                syz-executor.0
119110                   S       connec  0xfffff800406600e0  syz-executor.0
119111                   S       uwait   0xfffff80027e65300  syz-executor.0
15911   788   788     0  R       (threaded)                  syz-executor.2
105649                   RunQ                                syz-executor.2
119102                   RunQ                                syz-executor.2
15909   799   799     0  R       (threaded)                  syz-executor.3
115491                   RunQ                                syz-executor.3
119103                   S       connec  0xfffff800409ce840  syz-executor.3
119107                   S       uwait   0xfffff800403ecf00  syz-executor.3
15790     1   788     0  S       uwait   0xfffff80015d33900  syz-executor.2
15782     1   788     0  S       umtxn   0xfffff80015d38d00  syz-executor.2
14765 14759   799     0  SV      uwait   0xfffff80027e65b00  syz-executor.3
14759     1   799     0  DV      ppwait  0xfffff800401d84e8  syz-executor.3
 5525     1  5525    65  Ss      select  0xfffff8004058b8c0  dhclient
 3445     1  3445     0  Ss      select  0xfffff80027d8c140  dhclient
 3437     1  3437     0  Ss      select  0xfffff80027d8c440  dhclient
 3408     1  3408    65  Ss      select  0xfffff8004007c5c0  dhclient
 2263     1  2263     0  Ss      select  0xfffff80027bb3ec0  dhclient
 2260     1  2260     0  Ss      select  0xfffff80027df32c0  dhclient
 2241     1  2241    65  Ss      select  0xfffff80027d8cbc0  dhclient
 1716     1  1716     0  Ss      select  0xfffff80027df3740  dhclient
 1713     1  1713     0  Ss      select  0xfffff80027e1e440  dhclient
 1694     1  1694    65  Ss      select  0xfffff80027e31740  dhclient
  831   830   786     0  SV      uwait   0xfffff80027ab7100  syz-executor.1
  830     1   786     0  DV      ppwait  0xfffff800273f44e8  syz-executor.1
  818     1   818     0  Ss      select  0xfffff80027d1cec0  dhclient
  815     1   815     0  Ss      select  0xfffff80027d1c440  dhclient
  799   780   799     0  Rs                                  syz-executor.3
  788   780   788     0  Rs                                  syz-executor.2
  786   780   786     0  Ss      piperd  0xfffff80027afb8b8  syz-executor.1
  785   780   785     0  Rs                                  syz-executor.0
  780   778   778     0  S       (threaded)                  syz-fuzzer
100117                   S       uwait   0xfffff80015d37b00  syz-fuzzer
100118                   S       uwait   0xfffff80015d38b00  syz-fuzzer
100119                   S       uwait   0xfffff80015d38500  syz-fuzzer
100120                   S       uwait   0xfffff80015d38100  syz-fuzzer
100121                   S       uwait   0xfffff80015d33b00  syz-fuzzer
100122                   S       uwait   0xfffff80015d33300  syz-fuzzer
100123                   S       uwait   0xfffff80015d44100  syz-fuzzer
100124                   S       kqread  0xfffff800272a9f00  syz-fuzzer
100126                   S       uwait   0xfffff80015d37500  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffff800273770b0  csh
  776   694   776     0  Ss      select  0xfffff80015e17140  sshd
  761     1   761     0  Rs+     CPU 1                       getty
  760     1   760     0  Ss+     ttyin   0xfffff80015b004b0  getty
  759     1   759     0  Ss+     ttyin   0xfffff80015b00cb0  getty
  758     1   758     0  Ss+     ttyin   0xfffff80015a884b0  getty
  757     1   757     0  Ss+     ttyin   0xfffff80015a88cb0  getty
  756     1   756     0  Ss+     ttyin   0xfffff80015a8b4b0  getty
  755     1   755     0  Ss+     ttyin   0xfffff80015a8bcb0  getty
  754     1   754     0  Ss+     ttyin   0xfffff80015a904b0  getty
  753     1   753     0  Ss+     ttyin   0xfffff80015a90cb0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8273c8e0  cron
  694     1   694     0  Ss      select  0xfffff80015ea52c0  sshd
  507     1   507     0  Ds      biowr   0xfffffe0003830280  syslogd
  436     1   436     0  Ss      select  0xfffff80015d345c0  devd
  435     1   435    65  Ss      select  0xfffff80015d35bc0  dhclient
  350     1   350     0  Ss      select  0xfffff80015d35ec0  dhclient
  347     1   347     0  Ss      select  0xfffff800157638c0  dhclient
   23     0     0     0  DL      vlruwt  0xfffff80015ca5538  [vnlru]
   22     0     0     0  DL      syncer  0xffffffff8282bd50  [syncer]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100081                   D       qsleep  0xffffffff8282ae00  [bufdaemon]
100088                   D       -       0xffffffff8220ae80  [bufspacedaemon-0]
100095                   D       sdflush 0xfffff80004dfd4e8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff82852c48  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100079                   D       psleep  0xffffffff828470b8  [dom0]
100086                   D       launds  0xffffffff828470c4  [laundry: dom0]
100087                   D       umarcl  0xffffffff815caad0  [uma]
   18     0     0     0  DL      -       0xffffffff82570c78  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff82e4c828  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff830a63c0  [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 0xfffff80004dccc88  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffff80004d9bd80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffff80004d9bd30  [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       -       0xfffff80004c3ad00  [thr_0]
100029                   D       -       0xfffff80004c3ad80  [thr_1]
   12     0     0     0  RL      (threaded)                  [intr]
100011                   I                                   [swi5: fast taskq]
100014                   I                                   [swi6: task queue]
100016                   I                                   [swi6: Giant taskq]
100030                   Run     CPU 0                       [swi1: netisr 0]
100031                   I                                   [swi3: vm]
100032                   I                                   [swi4: clock (0)]
100033                   I                                   [swi4: clock (1)]
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    0xfffff80004bc9538  [init]
   10     0     0     0  DL      audit_w 0xffffffff82844ab0  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8271c6b0  [swapper]
100005                   D       -       0xfffff80004c65d00  [softirq_0]
100006                   D       -       0xfffff80004c65900  [softirq_1]
100007                   D       -       0xfffff80004c65500  [if_io_tqg_0]
100008                   D       -       0xfffff80004c65100  [if_io_tqg_1]
100009                   D       -       0xfffff80004c62d00  [if_config_tqg_0]
100010                   D       -       0xfffff80004c61d00  [aiod_kick taskq]
100012                   D       -       0xfffff80004c61500  [kqueue_ctx taskq]
100013                   D       -       0xfffff80004c61100  [pci_hp taskq]
100015                   D       -       0xfffff80004c5a900  [inm_free taskq]
100017                   D       -       0xfffff80004c5a100  [linuxkpi_irq_wq]
100018                   D       -       0xfffff80004c55d00  [thread taskq]
100019                   D       -       0xfffff80004c55900  [in6m_free taskq]
100020                   D       -       0xfffff80004c55500  [linuxkpi_short_wq_0]
100021                   D       -       0xfffff80004c55500  [linuxkpi_short_wq_1]
100022                   D       -       0xfffff80004c55500  [linuxkpi_short_wq_2]
100023                   D       -       0xfffff80004c55500  [linuxkpi_short_wq_3]
100024                   D       -       0xfffff80004c55100  [linuxkpi_long_wq_0]
100025                   D       -       0xfffff80004c55100  [linuxkpi_long_wq_1]
100026                   D       -       0xfffff80004c55100  [linuxkpi_long_wq_2]
100027                   D       -       0xfffff80004c55100  [linuxkpi_long_wq_3]
100034                   D       -       0xfffff80004c3a900  [firmware taskq]
100038                   D       -       0xfffff80004c3a500  [crypto_0]
100039                   D       -       0xfffff80004c3a500  [crypto_1]
100055                   D       -       0xfffff800153dd900  [vtnet0 rxq 0]
100056                   D       -       0xfffff800153dd500  [vtnet0 txq 0]
100057                   D       -       0xfffff800153dd100  [vtnet0 rxq 1]
100058                   D       -       0xfffff800153c9d00  [vtnet0 txq 1]
100060                   D       vtbslp  0xfffff8001542b500  [virtio_balloon]
100064                   D       -       0xfffff800153c9900  [mca taskq]
100066                   D       -       0xffffffff81e22870  [deadlkres]
100074                   D       -       0xfffff80015a1b900  [acpi_task_0]
100075                   D       -       0xfffff80015a1b900  [acpi_task_1]
100076                   D       -       0xfffff80015a1b900  [acpi_task_2]
100077                   D       -       0xfffff80004c3a100  [CAM taskq]
db> show all locks
Process 15911 (syz-executor.2) thread 0xfffffe00951faac0 (119102)
exclusive sx so_snd_sx (so_snd_sx) r = 0 (0xfffff80040816280) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_sockbuf.c:467
Process 761 (getty) thread 0xfffffe0094f95020 (100115)
exclusive sleep mutex ttymtx (ttymtx) r = 0 (0xfffff80015465c08) locked @ /syzkaller/managers/main/kernel/sys/kern/tty_ttydisc.c:489
Process 507 (syslogd) thread 0xfffffe00558ca740 (100090)
exclusive lockmgr bufwait (bufwait) r = 0 (0xfffffe0003830300) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_bio.c:3928
exclusive lockmgr ufs (ufs) r = 0 (0xfffff800272bd930) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_syscalls.c:3516
Process 12 (intr) thread 0xfffffe00042b9000 (100030)
exclusive rw tcpinp (tcpinp) r = 0 (0xfffff800406227c0) locked @ /syzkaller/managers/main/kernel/sys/netinet/in_pcb.c:2524
db> show malloc
              Type        InUse        MemUse     Requests
         sysctloid        34060        12773K        34127
           pf_hash            5        11560K            5
            devbuf         4216         6982K         4244
               pcb         1173         5754K        17025
          tcp_hpts            5         3219K            5
              kobj          332         2656K          491
             vtbuf           24         2064K           46
         sctp_atcl         1140         1140K         7209
         sctp_stro          569         1138K         2485
            newblk           10         1037K        15613
          vfscache            3         1035K            3
          inodedep          259          778K        15093
            acpica         1674          649K        55203
         sctp_atky         1709          641K        10267
           subproc          153          629K        16007
           callout            2          528K            2
         ufs_quota            1          520K            1
          vfs_hash            1          520K            1
              intr            4          480K            4
          filedesc           28          437K        29981
         sctp_athm         1140          428K         7732
          sctp_map         1138          427K         4970
               bus          995          380K         3503
               BPF           46          337K           46
            linker          350          271K          411
            DEVFS1          107          214K          124
            module          516          194K          516
           kdtrace          232          190K        35031
         vnet_data            1          176K            1
           tidhash            3          164K            3
              umtx          374          164K          374
           pagedep           10          141K        15000
        tfo_ccache            1          136K            1
            dirrem          250          125K        14997
               sem            4          120K            4
               UMA          268          101K          268
          freefile          249           94K        14989
     audit_evclass          236           89K          294
          mtx_pool            2           80K            2
              temp           35           77K         2565
          syncache            1           76K            1
              vmem            3           72K            5
          routetbl          129           70K          416
               msg            4           68K            4
            ifaddr           70           66K           72
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            DEVFS3          126           63K          136
       ether_multi          152           57K          162
        gtaskqueue           18           57K           18
        DEVFS_RULE           56           54K           56
              kenv           94           51K           94
      eventhandler          133           50K          133
           ithread           99           43K           99
              rman           84           42K          425
               shm            2           40K           52
            KTRACE          100           38K          100
           lltable           43           37K           88
         taskqueue           60           36K           60
         sctp_timw           69           35K           69
              proc            3           34K            3
            kqueue           70           34K        15948
         ufs_mount            5           34K            6
            bus-sc           33           34K         1713
           devstat            4           33K            4
         hostcache            1           32K            1
               tty           16           32K           16
            DEVFSP           80           30K          717
              GEOM           60           29K          487
         in6_multi           65           29K           65
            kbdmux            6           28K            6
              cred           26           26K          298
           pwddesc           68           26K        15918
             ifnet            7           25K            7
            plimit           24           24K          499
          kcovinfo           64           24K           68
         CAM queue            5           21K         1528
         pfs_nodes           20           20K           20
         proc-args           52           20K          689
             selfd           50           19K       250375
              UART           12           18K           12
           session           35           18K           54
              ksem            2           17K          167
         bmsafemap            2           17K        15077
               rpc            2           16K            2
             shmfd            1           16K           28
       pfs_vncache            1           16K            1
       ufs_dirhash           24           14K           24
            sglist            5           13K            5
               MCA           32           12K           32
           CAM DEV            3           12K          510
             lockf           32           12K           63
            Unitno           31           12K           47
                vt           11           11K           11
       inpcbpolicy           28           11K        20332
           acpisem           28           11K           28
           CAM XPT           22           11K          543
           uidinfo            3            9K           13
          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           61
             mount           16            7K           90
       fpukern_ctx            3            6K            3
               osd           15            6K        12664
          terminal           11            6K           11
            ip6ndp           12            6K           13
          sctp_ifa           13            5K           14
       ipsecpolicy            2            5K            2
 encap_export_host           12            5K           12
             clone            9            5K            9
        local_apic            1            4K            1
           io_apic            1            4K            1
            sahead            1            4K            1
          secasvar            1            4K            1
             nhops            6            4K            8
           CAM CCB            1            4K         2742
          pci_link           10            4K           10
               msi            9            4K            9
             DEVFS            9            4K           10
               tun            7            4K            7
             ipsec            3            3K            3
             mkdir            8            3K        29956
          in_multi            6            3K            8
          nexusdev            7            3K            7
            feeder            7            3K            7
            soname            7            3K        40691
          procdesc            5            3K           14
          freework            5            3K        14985
          sctp_ifn            6            3K           14
               mld            6            3K            6
              igmp            6            3K            6
         toponodes            6            3K            6
            prison            6            3K            6
            isadev            6            3K            6
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 CAM I/O Scheduler            1            1K            1
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320     572     1571857       0     254   36421632        0
        malloc-384    384   37315       5       69635       0      30   14330880        0
       malloc-8192   8192     574       1        4204       0       1    4710400        0
       malloc-1024   1024    4154      14        4522       0      16    4268032        0
       malloc-8192   8192     333       5         573       0       1    2768896        0
        RADIX NODE    144   17880     177      473315       0      62    2600208        0
              pbuf   2624       0     989           0       0       2    2595136        0
              mbuf    256    8945     670     3841014       0     254    2461440        0
           tcp_log    416       0    5004       29525       0     254    2081664        0
      mbuf_cluster   2048     960       0         960       0     254    1966080        0
          BUF TRIE    144     190   13278        1170       0      62    1939392        0
       malloc-1024   1024     324    1360       15229       0      16    1724416        0
       UMA Slabs 0    112   13792      29       13792       0     126    1547952        0
        malloc-384    384    2303    1357      208841       0      30    1405440        0
         sctp_asoc   2288     569       6        2485       0     254    1315600        0
       malloc-1024   1024    1266       2        9200       0      16    1298432        0
       malloc-2048   2048     577       1        3001       0       8    1183744        0
       malloc-1024   1024       2    1022       12310       0      16    1048576        0
        malloc-384    384    2547      23       54196       0      30     986880        0
        malloc-512    512     321    1359       45821       0      30     860160        0
           sctp_ep   1280     571       2        4201       0     254     733440        0
      malloc-32768  32768      17       5       15137       0       1     720896        0
       malloc-8192   8192      78       5       15978       0       1     679936        0
         FFS inode   1160     523      23       15512       0       8     633360        0
       malloc-1024   1024     603       5        4234       0      16     622592        0
       tcp_bbr_map    128       9    4114       65675       0     126     527744        0
        sctp_raddr    736     569      14        5100       0     254     429088        0
      malloc-16384  16384      26       0          30       0       1     425984        0
        malloc-384    384    1012      68        6995       0      30     414720        0
         VM OBJECT    264    1406      64      228606       0      30     388080        0
            lkpimm    160       1    2324           1       0      62     372000        0
          lkpicurr    160       2    2323           2       0      62     372000        0
            THREAD   1808     163      24       19112       0       8     338096        0
    ertt_txseginfo     40       0    7777     1353964       0     254     311080        0
        256 Bucket   2048     131      19       20605       0       8     307200        0
             VNODE    448     561      87       15552       0      30     290304        0
        malloc-384    384     681      19         964       0      30     268800        0
       malloc-1024   1024     228      32       20112       0      16     266240        0
      malloc-65536  65536       4       0           4       0       1     262144        0
         tcp_inpcb    488      15     505       12652       0     254     253760        0
            socket    944      54     210       25986       0     254     249216        0
       mbuf_packet    256     520     440       27693       0     254     245760        0
      malloc-16384  16384      10       5         273       0       1     245760        0
       malloc-2048   2048     107       3         124       0       8     225280        0
            DEVCTL   1024       0     216         132       0       0     221184        0
         MAP ENTRY     96    1862     280      861582       0     126     205632        0
      malloc-65536  65536       1       2         178       0       1     196608        0
         vmem btag     56    3358      14        3358       0     254     188832        0
         UMA Zones    768     240       4         240       0      16     187392        0
        malloc-512    512     317      11        1094       0      30     167936        0
       malloc-8192   8192      16       4         181       0       1     163840        0
       malloc-4096   4096       3      37        2745       0       2     163840        0
       S VFS Cache    104    1070     373       16241       0     126     150072        0
       FFS2 dinode    256     523      32       15512       0      62     142080        0
           VMSPACE   2544      43      11       15892       0       4     137376        0
      malloc-65536  65536       2       0           2       0       1     131072        0
        malloc-384    384     262      68      266267       0      30     126720        0
             tcpcb   1064      11     108       12652       0     254     126616        0
          ksiginfo    112      69     975        1818       0     126     116928        0
              PROC   1336      67      17       15917       0       8     112224        0
        malloc-512    512     197      11        1264       0      30     106496        0
        128 Bucket   1024      67      32        1768       0      16     101376        0
      malloc-16384  16384       6       0           6       0       1      98304        0
         filedesc0   1072      68      16       15918       0       8      90048        0
          UMA Kegs    384     225       8         225       0      30      89472        0
        sctp_chunk    152     555      17        3557       0     254      86944        0
         32 Bucket    256     167     163       11371       0      62      84480        0
        malloc-512    512      93      59       15446       0      30      77824        0
             g_bio    408       4     176        8417       0      30      73440        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-32768  32768       2       0           2       0       1      65536        0
      malloc-32768  32768       2       0           2       0       1      65536        0
        malloc-384    384      90      60       10994       0      30      57600        0
       malloc-8192   8192       2       5       15182       0       1      57344        0
       malloc-1024   1024      53       3          57       0      16      57344        0
         64 Bucket    512      47      65       13371       0      30      57344        0
         16 Bucket    144     204     188        4187       0      62      56448        0
       malloc-4096   4096      10       3         104       0       2      53248        0
        malloc-512    512      83      21         196       0      30      53248        0
      malloc-16384  16384       3       0           3       0       1      49152        0
      malloc-16384  16384       1       2           6       0       1      49152        0
       malloc-8192   8192       4       2         534       0       1      49152        0
       malloc-4096   4096       5       7         542       0       2      49152        0
       malloc-2048   2048       9      15        1551       0       8      49152        0
       malloc-2048   2048      18       4          22       0       8      45056        0
            clpbuf   2624       0      16          21       0      16      41984        0
       malloc-4096   4096       8       2         915       0       2      40960        0
            pcpu-8      8    4683     437        4839       0     254      40960        0
             Files     80     253     247       50873       0     126      40000        0
        malloc-384    384      37      63       12704       0      30      38400        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36       76229       0      16      36864        0
      malloc-16384  16384       2       0           2       0       1      32768        0
       malloc-4096   4096       6       2          87       0       2      32768        0
        malloc-512    512      19      45       15118       0      30      32768        0
        malloc-512    512      22      42       15741       0      30      32768        0
           pcpu-64     64     486      26         486       0     254      32768        0
sctp_stream_msg_out    112     262      26        1073       0     254      32256        0
             ripcb    488       7      57        4526       0     254      31232        0
      tcp_rack_pcb    832       3      33        2887       0      16      29952        0
       tcp_bbr_pcb    832       3      33        6423       0      16      29952        0
              pipe    744      26      14         573       0      16      29760        0
       malloc-4096   4096       1       6         281       0       2      28672        0
       malloc-4096   4096       7       0           7       0       2      28672        0
        malloc-512    512      32      24        1526       0      30      28672        0
         TURNSTILE    136     188      22         188       0      62      28560        0
             KNOTE    160      28     147      462072       0      62      28000        0
         udp_inpcb    488       6      50        2887       0     254      27328        0
       malloc-2048   2048       9       3          11       0       8      24576        0
               PWD     32      24     732       15075       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
          8 Bucket     80      43     257        3654       0     126      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
       malloc-2048   2048       9       1           9       0       8      20480        0
          2 Bucket     32      90     540        3875       0     254      20160        0
        SLEEPQUEUE     88     188      36         188       0     126      19712        0
     udplite_inpcb    488       4      36         267       0     254      19520        0
       Mountpoints   2752       2       5           2       0       4      19264        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-2048   2048       4       4         591       0       8      16384        0
      tcp_rack_map    112       3     141        4976       0     126      16128        0
      vtnet_tx_hdr     24       0     668     2091992       0     254      16032        0
             unpcb    256      20      40        1402       0     254      15360        0
              ertt     72      11     157       12652       0     126      12096        0
              kenv    258      15      30        1055       0      30      11610        0
     routing nhops    256      27      18          34       0      62      11520        0
       malloc-4096   4096       0       2         102       0       2       8192        0
       malloc-2048   2048       0       4           8       0       8       8192        0
       malloc-1024   1024       0       8          45       0      16       8192        0
           rtentry    176      30      16          34       0      62       8096        0
              PGRP     88      35      57          54       0     126       8096        0
          rl_entry     40      67     135          67       0     254       8080        0
        sctp_laddr     48       0     168         324       0     254       8064        0
             udpcb     32      10     242        3154       0     254       8064        0
          4 Bucket     48       7     161         346       0     254       8064        0
        sctp_readq    152       0      52         173       0     254       7904        0
            itimer    352       0      22           8       0      30       7744        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
    tcp_log_bucket    176       0      23           1       0      62       4048        0
          tcpreass     48       1      83           1       0     254       4032        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
      tcp_log_node    120       0      33           1       0     126       3960        0
       UMA Slabs 1    176       9      13           9       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
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    296       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
    IPsec SA lft_c     16       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
            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-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          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 Title
ci-freebsd-main 2021/05/16 20:01 freebsd-src 91f251b2ab3a f54a5c09 log report Fatal trap 12: page fault in rack_process_to_cumack
* Struck through repros no longer work on HEAD.