syzbot


Fatal trap NUM: page fault in sctp_ss_prio_select

Status: fixed on 2021/09/29 10:05
Reported-by: syzbot+0a0857458f4a7b0507c8@syzkaller.appspotmail.com
Fix commit: 5b53e749a95e sctp: fix usage of stream scheduler functions
First crash: 498d, last: 494d

Sample crash report:
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address	= 0x1f
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff84b0bbcb
stack pointer	        = 0x28:0xfffffe009bfd7ef0
frame pointer	        = 0x28:0xfffffe009bfd7f30
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		= 1392 (syz-executor.3)
trap number		= 12
panic: page fault
cpuid = 1
time = 1632858663
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe009bfd76f0
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe009bfd7850
vpanic() at vpanic+0x2c5/frame 0xfffffe009bfd7930
panic() at panic+0xb5/frame 0xfffffe009bfd79f0
trap_fatal() at trap_fatal+0x6a4/frame 0xfffffe009bfd7af0
trap_pfault() at trap_pfault+0x186/frame 0xfffffe009bfd7c30
trap() at trap+0x5e7/frame 0xfffffe009bfd7e20
calltrap() at calltrap+0x8/frame 0xfffffe009bfd7e20
--- trap 0xc, rip = 0xffffffff84b0bbcb, rsp = 0xfffffe009bfd7ef0, rbp = 0xfffffe009bfd7f30 ---
sctp_ss_prio_select() at sctp_ss_prio_select+0x9b/frame 0xfffffe009bfd7f30
sctp_med_chunk_output() at sctp_med_chunk_output+0x190c/frame 0xfffffe009bfd8ae0
sctp_chunk_output() at sctp_chunk_output+0x2b25/frame 0xfffffe009bfd9740
sctp_inpcb_free() at sctp_inpcb_free+0xbcc/frame 0xfffffe009bfd97d0
sctp_close() at sctp_close+0x1fb/frame 0xfffffe009bfd98b0
soclose() at soclose+0x3fe/frame 0xfffffe009bfd99c0
_fdrop() at _fdrop+0x58/frame 0xfffffe009bfd99f0
closef() at closef+0x686/frame 0xfffffe009bfd9bd0
closefp_impl() at closefp_impl+0xd9/frame 0xfffffe009bfd9c10
kern_dup() at kern_dup+0xb6d/frame 0xfffffe009bfd9d30
amd64_syscall() at amd64_syscall+0x425/frame 0xfffffe009bfd9f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe009bfd9f30
--- syscall (198, FreeBSD ELF64, nosys), rip = 0x289e4a, rsp = 0x7fffdfffdf08, rbp = 0x7fffdfffdf70 ---
KDB: enter: panic
[ thread pid 1392 tid 100787 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28e03da(%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         0x337548be407946f1
rdx                    0x3ffff
rbx                          0
rsp         0xfffffe009bfd7830
rbp         0xfffffe009bfd7850
rsi                    0x40001
rdi         0xffffffff817bc96a  vprintf+0x35a
r8                           0
r9          0xfffffe009bfd7368
r10                          0
r11         0xfffffe009eac4c30
r12         0xfffffe009eac4720
r13         0xfffffe009bfd7801
r14         0xffffffff82c7fe60  .str.18
r15         0xffffffff82c7fe60  .str.18
rip         0xffffffff817b02db  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28e03da(%rip)
db> show proc
Process 1392 (syz-executor.3) at 0xfffffe009eadca70:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 803 at 0xfffffe00588c2000
 ABI: FreeBSD ELF64
 flag: 0x10000080  flag2: 0
 arguments: /root/syz-executor.3
 reaper: 0xfffffe0053d60538 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe009ea3c9f0
   (map 0xfffffe009ea3c9f0)
   (map.pmap 0xfffffe009ea3cab0)
   (pmap 0xfffffe009ea3cb10)
 threads: 2
100236                   S       nanslp  0xffffffff8405d5c0  syz-executor.3
100787                   Run     CPU 1                       syz-executor.3
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 1397   785   785     0  L       (threaded)                  syz-executor.0
100115                   S       nanslp  0xffffffff8405d5c0  syz-executor.0
100792                   L      *sctp-in 0xfffffe009ebbbe40  syz-executor.0
100794                   L      *sctp-in 0xfffffe009ebbbe40  syz-executor.0
100799                   S       uwait   0xfffffe009eac9880  syz-executor.0
 1395   786   786     0  L       (threaded)                  syz-executor.1
100166                   S       nanslp  0xffffffff8405d5c0  syz-executor.1
100790                   L      *sctp-in 0xfffffe009ebbbe40  syz-executor.1
100793                   L      *sctp-in 0xfffffe009ebbbe40  syz-executor.1
100797                   S       uwait   0xfffffe009eac9680  syz-executor.1
 1393   794   794     0  T       (threaded)                  syz-executor.2
100227                   s                                   syz-executor.2
100789                   L      *sctp-in 0xfffffe009ebbbe40  syz-executor.2
 1392   803   803     0  R       (threaded)                  syz-executor.3
100236                   S       nanslp  0xffffffff8405d5c0  syz-executor.3
100787                   Run     CPU 1                       syz-executor.3
 1349     0     0     0  DL      aiordy  0xfffffe009eab9000  [aiod4]
 1348     0     0     0  DL      aiordy  0xfffffe009e420a70  [aiod3]
 1347     0     0     0  DL      aiordy  0xfffffe009eadc000  [aiod2]
 1346     0     0     0  DL      aiordy  0xfffffe00588c2538  [aiod1]
 1166  1156  1166     0  Ss      select  0xfffffe0057430940  dhclient
 1159     1  1159     0  Ss      select  0xfffffe0057430a40  dhclient
 1156  1149   436    65  S       select  0xfffffe0057430240  dhclient
 1149   436   436     0  S       wait    0xfffffe00588e2538  sh
  915     1   803     0  S       uwait   0xfffffe009ea66c00  syz-executor.3
  908     1   803     0  S       uwait   0xfffffe00575e1400  syz-executor.3
  803   780   803     0  Ss      nanslp  0xffffffff8405d5c0  syz-executor.3
  794   780   794     0  Ss      nanslp  0xffffffff8405d5c0  syz-executor.2
  786   780   786     0  Ss      nanslp  0xffffffff8405d5c0  syz-executor.1
  785   780   785     0  Ss      nanslp  0xffffffff8405d5c0  syz-executor.0
  780   778   778     0  S       (threaded)                  syz-fuzzer
100119                   S       uwait   0xfffffe00575e1200  syz-fuzzer
100120                   S       uwait   0xfffffe009e9f5900  syz-fuzzer
100121                   S       uwait   0xfffffe009e9f5a00  syz-fuzzer
100122                   S       uwait   0xfffffe009e9f5b00  syz-fuzzer
100123                   S       uwait   0xfffffe009e9f5c00  syz-fuzzer
100124                   S       uwait   0xfffffe009e9f5d00  syz-fuzzer
100125                   S       uwait   0xfffffe00575e1300  syz-fuzzer
100126                   S       uwait   0xfffffe009e9f5e00  syz-fuzzer
100362                   S       kqread  0xfffffe0058b36600  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffffe009e9d35e8  csh
  776   694   776     0  Ss      select  0xfffffe009e4ab940  sshd
  760     1   760     0  Ss+     ttyin   0xfffffe0057014cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe00575fa0b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00575fa8b0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00575f60b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00575f68b0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00575f20b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00575f28b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00575ec0b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe00575ec8b0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8405d5c1  cron
  694     1   694     0  Ss      select  0xfffffe009e4abcc0  sshd
  507     1   507     0  Ss      select  0xfffffe0058b24540  syslogd
  436     1   436     0  Ss      wait    0xfffffe00588e2a70  devd
  435     1   435    65  Ss      select  0xfffffe0057430dc0  dhclient
  350     1   350     0  Ss      select  0xfffffe0058b242c0  dhclient
  347     1   347     0  Ss      select  0xfffffe0058b245c0  dhclient
   23     0     0     0  DL      syncer  0xffffffff84185960  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe005877ea70  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100085                   D       qsleep  0xffffffff84183660  [bufdaemon]
100088                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100101                   D       sdflush 0xfffffe0058843ce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841bbb80  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100083                   D       psleep  0xffffffff841af6b8  [dom0]
100089                   D       launds  0xffffffff841af6c4  [laundry: dom0]
100090                   D       umarcl  0xffffffff81eb2b10  [uma]
   18     0     0     0  DL      -       0xffffffff83e13ca0  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff84b985a0  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff848961a0  [pf purge]
   15     0     0     0  DL      -       0xffffffff8417e880  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8417e880  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8417e880  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8417e880  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100048                   D       -       0xffffffff83c99540  [doneq0]
100049                   D       -       0xffffffff83c994c0  [async]
100082                   D       -       0xffffffff83c99340  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056ac8c88  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe00541c9d80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe00541c9d30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff841a9760  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100039                   D       -       0xffffffff84030b80  [g_event]
100040                   D       -       0xffffffff84030bc0  [g_up]
100041                   D       -       0xffffffff84030c00  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100029                   D       -       0xfffffe00081f6d00  [thr_0]
100030                   D       -       0xfffffe00081f6d80  [thr_1]
100031                   D       -       0xffffffff8417fc08  [alloc_0]
   12     0     0     0  WL      (threaded)                  [intr]
100011                   I                                   [swi6: task queue]
100012                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100032                   I                                   [swi1: netisr 0]
100033                   I                                   [swi3: vm]
100034                   I                                   [swi4: clock (0)]
100035                   I                                   [swi4: clock (1)]
100036                   I                                   [swi1: hpts]
100037                   I                                   [swi1: hpts]
100050                   I                                   [irq24: virtio_pci0]
100051                   I                                   [irq25: virtio_pci0]
100052                   I                                   [irq26: virtio_pci0]
100053                   I                                   [irq27: virtio_pci0]
100054                   I                                   [irq28: virtio_pci1]
100055                   I                                   [irq29: virtio_pci1]
100056                   I                                   [irq30: virtio_pci1]
100057                   I                                   [irq31: virtio_pci1]
100058                   I                                   [irq32: virtio_pci1]
100063                   I                                   [irq10: virtio_pci2]
100065                   I                                   [irq1: atkbd0]
100066                   I                                   [irq12: psm0]
100067                   I                                   [swi0: uart uart++]
100075                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   Run     CPU 0                       [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0053d60538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841aa700  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff84031a80  [swapper]
100005                   D       -       0xfffffe00081f8900  [softirq_0]
100006                   D       -       0xfffffe00081f8700  [softirq_1]
100007                   D       -       0xfffffe00081f8500  [if_io_tqg_0]
100008                   D       -       0xfffffe00081f8300  [if_io_tqg_1]
100009                   D       -       0xfffffe00081f8100  [if_config_tqg_0]
100010                   D       -       0xfffffe0053dfce00  [deferred_unmount ta]
100013                   D       -       0xfffffe0053dfc800  [thread taskq]
100015                   D       -       0xfffffe0053dfc400  [linuxkpi_irq_wq]
100016                   D       -       0xfffffe0053dfc200  [kqueue_ctx taskq]
100017                   D       -       0xfffffe0053dfc000  [pci_hp taskq]
100018                   D       -       0xfffffe0053e06d00  [aiod_kick taskq]
100019                   D       -       0xfffffe0053e06b00  [inm_free taskq]
100020                   D       -       0xfffffe0053e06900  [in6m_free taskq]
100021                   D       -       0xfffffe0053e06700  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0053e06700  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0053e06700  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0053e06700  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0053e06200  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0053e06200  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0053e06200  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0053e06200  [linuxkpi_long_wq_3]
100038                   D       -       0xfffffe0053e14200  [firmware taskq]
100042                   D       -       0xfffffe005419ec00  [crypto_0]
100043                   D       -       0xfffffe005419ec00  [crypto_1]
100059                   D       -       0xfffffe0056ec3b00  [vtnet0 rxq 0]
100060                   D       -       0xfffffe0056ec3a00  [vtnet0 txq 0]
100061                   D       -       0xfffffe0056ec3900  [vtnet0 rxq 1]
100062                   D       -       0xfffffe0056ec3800  [vtnet0 txq 1]
100064                   D       vtbslp  0xfffffe0056ff6600  [virtio_balloon]
100068                   D       -       0xfffffe0057027800  [mca taskq]
100073                   D       -       0xffffffff82c86de1  [deadlkres]
100077                   D       -       0xfffffe00571dc900  [acpi_task_0]
100078                   D       -       0xfffffe00571dc900  [acpi_task_1]
100079                   D       -       0xfffffe00571dc900  [acpi_task_2]
100081                   D       -       0xfffffe005419e400  [CAM taskq]
db> show all locks
Process 1392 (syz-executor.3) thread 0xfffffe009eac4720 (100787)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe009ea94a90) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3355
exclusive sleep mutex sctp-inp (inp) r = 0 (0xfffffe009eac1958) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3322
exclusive rw sctp-info (sctp-info) r = 0 (0xfffffe00081ba7e0) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3321
exclusive sleep mutex sctp-create (inp_create) r = 0 (0xfffffe009eac1978) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3320
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4213         4323K         4241
          tcp_hpts            6         3201K            6
         sysctloid        35175         2072K        35246
             vtbuf           24         1968K           46
              kobj          326         1304K          483
            newblk           51         1037K         1769
          vfscache            3         1025K            3
          inodedep          236          601K          587
               pcb           38          542K         1663
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          128          270K         1465
            acpica         1674          184K        55237
          filedesc           22          169K         1013
         vnet_data            1          168K            1
              vmem            3          146K            4
           tidhash            3          141K            3
            linker          355          140K          383
           pagedep           16          132K          502
        tfo_ccache            1          128K            1
            DEVFS1          108          108K          125
               sem            4          106K            4
               bus          986           80K         3474
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          509           64K          509
            dirrem          211           53K          518
           kdtrace          214           43K         2198
              umtx          330           42K          330
               BPF           22           36K           22
              temp           34           33K         2026
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          127           32K          137
               msg            4           30K            4
          freefile          211           27K          515
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
            ifaddr           68           20K           70
         ufs_mount            4           17K            5
              proc            3           17K            3
          routetbl          137           17K          438
               tty           16           16K           16
           ithread           99           16K           99
           lltable           46           15K           55
            bus-sc           34           15K         1691
       ether_multi          157           13K          167
            KTRACE          100           13K          100
             ifnet            7           13K            7
              kenv           95           12K           95
      eventhandler          133           12K          133
         CAM queue            5           11K         1528
              GEOM           61           10K          487
              rman           84           10K          425
         in6_multi           71            9K           71
         bmsafemap            2            9K          570
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K            6
         sctp_timw           32            8K           32
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          295
         taskqueue           63            7K           63
            sglist            5            7K            5
            kqueue           63            7K         1404
           CAM DEV            3            6K          510
              cred           23            6K          214
            plimit           21            6K          364
       ufs_dirhash           24            5K           24
            DEVFSP           74            5K          163
               UMA          270            5K          270
          pf_ifnet           10            5K           19
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K           68
           pwddesc           61            4K         1399
           acpisem           28            4K           28
            diradd           27            4K          551
             hhook           15            4K           17
           session           25            4K           39
          terminal           11            3K           11
         proc-args           44            3K          592
           uidinfo            3            3K            8
             lockf           20            3K           33
         sctp_stro            2            2K          245
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
             mkdir           16            2K          980
          indirdep            8            2K          340
         ipsec-saq            2            2K            2
             selfd           31            2K        26237
            ip6ndp           12            2K           15
          sctp_ifa           14            2K           15
            Unitno           29            2K           47
         newdirblk           13            2K          490
           CAM XPT           22            2K          543
         sctp_atcl            4            2K          984
          in_multi            6            2K            8
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
            select           10            2K           37
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
          freework            5            2K          723
           softdep            1            1K            1
          freeblks            4            1K          530
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           16
      NFSD session            1            1K            1
        CAM periph            4            1K          271
             ipsec            3            1K            3
          sctp_ifn            6            1K           15
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
       inpcbpolicy           23            1K          372
             mount           16            1K           89
          pci_link           10            1K           10
           pf_osfp            6            1K            6
            crypto            4            1K            4
 encap_export_host           12            1K           12
              pfil            4            1K            4
              cdev            2            1K            2
               osd            8            1K          171
    chacha20random            1            1K            1
         sctp_atky            6            1K         1247
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            vnodes            1            1K            1
           CAM SIM            2            1K            2
              ktls            1            1K            1
          procdesc            2            1K           12
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K            6
            prison            6            1K            6
       lkpikmalloc            5            1K            6
        aesni_data            2            1K            2
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
             xform            2            1K          123
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          pmchooks            1            1K            1
            soname            4            1K         4072
          sctp_vrf            1            1K            1
         sctp_athm            4            1K         1002
          sctp_map            4            1K          490
              vnet            1            1K            1
           entropy            2            1K           39
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          filecaps            2            1K           90
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            statfs            0            0K          668
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ag_tgt_map_t malloc            0            0K            0
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lDevFlags * malloc            0            0K            0
tiDeviceHandle_t * malloc            0            0K            0
ag_portal_data_t malloc            0            0K            0
ag_device_t malloc            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320     989      531315       0     254   38129664        0
              pbuf   2624       0     989           0       0       2    2595136        0
              mbuf    256    8687     883      892447       0     254    2449920        0
          BUF TRIE    144     192   11568        1060       0      62    1693440        0
        malloc-384    384    4404       6        4756       0      30    1693440        0
       malloc-4096   4096     389       3        1888       0       2    1605632        0
        malloc-128    128   11836      37       11949       0     126    1519744        0
        RADIX NODE    144    9135     240       53917       0      63    1350000        0
       UMA Slabs 0    112   10363       2       10363       0     126    1160880        0
           tcp_log    416       0    2520        8894       0     254    1048320        0
         vmem btag     56   16647      32       16647       0     254     934024        0
    ertt_txseginfo     40       0   19392       94775       0     254     775680        0
         FFS inode   1160     509      23        1025       0       8     617120        0
      mbuf_cluster   2048     285       1         285       0     254     585728        0
        256 Bucket   2048     221      13       15117       0       8     479232        0
      malloc-65536  65536       6       0           6       0       1     393216        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
         VM OBJECT    264    1150      95       21687       0      30     328680        0
        malloc-256    256     422     778        4123       0      62     307200        0
       tcp_bbr_map    128       0    2356       13788       0     126     301568        0
            THREAD   1808     152      13         799       0       8     298320        0
         malloc-64     64    4486      50        7365       0     254     290304        0
             VNODE    448     547      83        1065       0      30     282240        0
         malloc-16     16   14753     247       16521       0     254     240000        0
      malloc-16384  16384      10       4         504       0       1     229376        0
            DEVCTL   1024      22     198         152       0       0     225280        0
      malloc-65536  65536       1       2          71       0       1     196608        0
      malloc-65536  65536       1       2         137       0       1     196608        0
      malloc-32768  32768       0       6         304       0       1     196608        0
         UMA Zones    768     242       2         242       0      16     187392        0
         malloc-32     32    5598      72        6386       0     254     181440        0
         MAP ENTRY     96    1476     330       72932       0     126     173376        0
        malloc-128    128    1217      54       26761       0     126     162688        0
     FPU_save_area    832     154      26        4839       0      16     149760        0
        malloc-128    128    1064      52        5375       0     126     142848        0
       malloc-1024   1024     133       3         150       0      16     139264        0
       FFS2 dinode    256     509      16        1024       0      62     134400        0
       S VFS Cache    104    1009     278        1540       0     126     133848        0
      malloc-65536  65536       0       2          16       0       1     131072        0
          ksiginfo    112      50     994        4119       0     126     116928        0
           VMSPACE   2544      34      11        1372       0       4     114480        0
      malloc-32768  32768       1       2         131       0       1      98304        0
        128 Bucket   1024      71      24         903       0      16      97280        0
       malloc-8192   8192       9       2         110       0       1      90112        0
          UMA Kegs    384     227       6         227       0      30      89472        0
              PROC   1336      60       6        1397       0       8      88176        0
         filedesc0   1072      61      16        1399       0       8      82544        0
       malloc-8192   8192       8       1          10       0       1      73728        0
             g_bio    408       0     180        9802       0      30      73440        0
            socket    960      39      37        2349       0     254      72960        0
       mbuf_packet    256      18     267        1957       0     254      72960        0
        malloc-256    256     264      21        1229       0      62      72960        0
       malloc-2048   2048      10      24         737       0       8      69632        0
      malloc-65536  65536       1       0           1       0       1      65536        0
       malloc-8192   8192       4       4          32       0       1      65536        0
       malloc-4096   4096      14       2          27       0       2      65536        0
       malloc-2048   2048      12      14         583       0       8      53248        0
      malloc-16384  16384       3       0           3       0       1      49152        0
      malloc-16384  16384       2       1          17       0       1      49152        0
      malloc-16384  16384       1       2         161       0       1      49152        0
       malloc-2048   2048       2      22         575       0       8      49152        0
        malloc-256    256      46     134         437       0      62      46080        0
         32 Bucket    256      53     127        7123       0      62      46080        0
         sctp_asoc   2288       2      18         245       0     254      45760        0
       malloc-1024   1024      10      34        1624       0      16      45056        0
         64 Bucket    512      72      16        2835       0      30      45056        0
         malloc-64     64     517     176        1641       0     254      44352        0
        malloc-128    128     241     100         697       0     126      43648        0
            clpbuf   2624       0      16          24       0      16      41984        0
           DIRHASH   1024      34       6          34       0      16      40960        0
            pcpu-8      8    4664     456        4820       0     254      40960        0
        malloc-128    128      61     249         323       0     126      39680        0
        malloc-256    256      56      94        2220       0      62      38400        0
           sctp_ep   1272       2      28         729       0     254      38160        0
             NAMEI   1024       0      36       15872       0      16      36864        0
       malloc-4096   4096       9       0           9       0       2      36864        0
       malloc-4096   4096       8       1          10       0       2      36864        0
         malloc-64     64      77     490       40776       0     254      36288        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
        malloc-384    384      70      10         123       0      30      30720        0
            da_ccb    544       0      56        2574       0      16      30464        0
             tcpcb   1080       4      24         160       0     254      30240        0
       malloc-4096   4096       4       3           7       0       2      28672        0
         malloc-64     64     104     337        1991       0     254      28224        0
        malloc-384    384      37      33        1026       0      30      26880        0
              pipe    744      20      15         360       0      16      26040        0
         TURNSTILE    136     166      23         166       0      62      25704        0
             KNOTE    160      28     122       28455       0      62      24000        0
            ttyinq    160     135      15         300       0      62      24000        0
             Files     80     197     103        9248       0     126      24000        0
          8 Bucket     80      45     255         998       0     126      24000        0
         tcp_inpcb    496      12      36         160       0     254      23808        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-384    384      55       5          57       0      30      23040        0
        malloc-256    256      82       8         500       0      62      23040        0
       malloc-4096   4096       3       2        1303       0       2      20480        0
       malloc-2048   2048       2       8         112       0       8      20480        0
               PWD     32      20     610         581       0     254      20160        0
         malloc-64     64     232      83         468       0     254      20160        0
         16 Bucket    144      60      80         401       0      62      20160        0
        SLEEPQUEUE     88     166      58         166       0     126      19712        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-256    256      66       9         455       0      62      19200        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-1024   1024       8       8          12       0      16      16384        0
       malloc-1024   1024       3      13         246       0      16      16384        0
       malloc-1024   1024       8       8         184       0      16      16384        0
        malloc-512    512       0      32         131       0      30      16384        0
        sctp_raddr    736       2      20         245       0     254      16192        0
         malloc-32     32      88     416         994       0     254      16128        0
      vtnet_tx_hdr     24       0     668      299212       0     254      16032        0
         udp_inpcb    496       6      26         176       0     254      15872        0
        malloc-128    128      56      68         738       0     126      15872        0
        malloc-128    128     106      18         670       0     126      15872        0
        malloc-384    384      22      18         362       0      30      15360        0
        malloc-256    256      25      35         204       0      62      15360        0
       tcp_bbr_pcb    832       0      18          70       0      16      14976        0
      tcp_rack_pcb    832       0      18          32       0      16      14976        0
       malloc-2048   2048       3       3           5       0       8      12288        0
       malloc-2048   2048       3       3         194       0       8      12288        0
       malloc-1024   1024       7       5           7       0      16      12288        0
         malloc-64     64     168      21         288       0     254      12096        0
         malloc-32     32      98     280        4691       0     254      12096        0
              kenv    258      15      30        1031       0      30      11610        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-2048   2048       3       1           3       0       8       8192        0
       malloc-2048   2048       2       2           4       0       8       8192        0
       malloc-1024   1024       2       6          12       0      16       8192        0
        malloc-512    512       6      10           6       0      30       8192        0
        malloc-512    512       0      16          20       0      30       8192        0
        malloc-512    512       5      11          78       0      30       8192        0
        malloc-512    512       8       8           8       0      30       8192        0
           rtentry    176      31      15          35       0      62       8096        0
             tcptw     88       8      84           8       0     254       8096        0
              PGRP     88      25      67          39       0     126       8096        0
          rl_entry     40      55     147          55       0     254       8080        0
        sctp_laddr     48       4     164         307       0     254       8064        0
      tcp_rack_map    112       0      72          82       0     126       8064        0
             udpcb     32       6     246         191       0     254       8064        0
              AIOP     32       4     248           4       0     254       8064        0
              ertt     72       4     108         160       0     126       8064        0
         malloc-64     64      53      73         397       0     254       8064        0
         malloc-64     64      63      63         336       0     254       8064        0
         malloc-32     32     132     120         303       0     254       8064        0
         malloc-32     32      61     191          78       0     254       8064        0
         malloc-32     32      40     212        1059       0     254       8064        0
         malloc-32     32      52     200         251       0     254       8064        0
         malloc-32     32      17     235          76       0     254       8064        0
          4 Bucket     48       7     161          70       0     254       8064        0
          2 Bucket     32      57     195         625       0     254       8064        0
         malloc-16     16      25     475         331       0     254       8000        0
         malloc-16     16      56     444         552       0     254       8000        0
         malloc-16     16      18     482        1191       0     254       8000        0
         malloc-16     16      39     461         176       0     254       8000        0
         malloc-16     16     287     213       25357       0     254       8000        0
         malloc-16     16       4     496         434       0     254       8000        0
             ripcb    496       5      11          21       0     254       7936        0
     udplite_inpcb    496       0      16          15       0     254       7936        0
        malloc-128    128      42      20          65       0     126       7936        0
        sctp_readq    152       0      52          20       0     254       7904        0
        sctp_chunk    152       2      50          32       0     254       7904        0
             AIOCB    552       0      14           5       0      16       7728        0
     routing nhops    256      27       3          35       0      62       7680        0
             unpcb    256      11      19        1216       0     254       7680        0
        malloc-256    256      13      17         588       0      62       7680        0
            AIOLIO    272       0      28           5       0      30       7616        0
            cpuset    104       8      54           8       0     126       6448        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-4096   4096       0       1           1       0       2       4096        0
       malloc-4096   4096       0       1           3       0       2       4096        0
       malloc-1024   1024       1       3           2       0      16       4096        0
        malloc-512    512       0       8           1       0      30       4096        0
        malloc-512    512       5       3           5       0      30       4096        0
        malloc-512    512       0       8           1       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
sctp_stream_msg_out    112       1      35           2       0     254       4032        0
          tcpreass     48       0      84           2       0     254       4032        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
         malloc-16     16       0     250          12       0     254       4000        0
               AIO    208       0      19           4       0      62       3952        0
       UMA Slabs 1    176       9      13           9       0      62       3872        0
        malloc-384    384       0      10           1       0      30       3840        0
        malloc-384    384       2       8           2       0      30       3840        0
        malloc-384    384       1       9           1       0      30       3840        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      12      27          14       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
           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    312       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
            itimer    352       0       0           0       0      30          0        0
        TMPFS node    224       0       0           0       0      62          0        0
           NCLNODE    592       0       0           0       0      16          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
     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-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
           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 (761):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2021/09/28 19:51 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/28 17:51 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/28 16:42 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/28 16:33 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/28 15:26 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/28 14:26 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/28 13:31 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/28 12:25 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/28 10:40 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/28 05:11 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/28 03:09 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/28 02:01 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/28 00:59 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/27 22:52 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/27 20:13 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-main 2021/09/25 16:15 freebsd-src f766826fe3b8 8cac236e console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/29 09:48 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/29 09:26 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/29 08:06 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/29 06:56 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/29 05:38 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/29 05:00 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/29 03:25 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/29 02:18 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/29 01:10 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/29 00:32 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/28 23:30 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/28 22:26 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/28 21:10 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/28 20:54 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/28 18:44 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/28 11:14 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/28 09:39 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/28 09:22 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/28 08:16 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/28 07:11 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/28 06:13 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/28 04:13 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/28 03:10 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/27 23:54 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/27 21:44 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/27 21:14 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/27 19:06 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
ci-freebsd-i386 2021/09/27 18:04 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_prio_select
* Struck through repros no longer work on HEAD.