syzbot


Fatal trap NUM: page fault in sctp_ss_rrp_packet_done

Status: fixed on 2021/09/29 10:05
Reported-by: syzbot+104cc0c1d3ccf2921c1d@syzkaller.appspotmail.com
Fix commit: 5b53e749a95e sctp: fix usage of stream scheduler functions
First crash: 498d, last: 495d

Sample crash report:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0xffffffffffffffff
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff849e0252

stack pointer	        = 0x28:0xfffffe00a5ebab60

FreeBSD/amd64frame pointer	        = 0x28:0xfffffe00a5ebab90
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		= 1060 (syz-executor.1)
trap number		= 12
panic: page fault
cpuid = 0
time = 1632856224
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe00a5eba370
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe00a5eba4d0
vpanic() at vpanic+0x2c5/frame 0xfffffe00a5eba5b0
panic() at panic+0xb5/frame 0xfffffe00a5eba670
trap_fatal() at trap_fatal+0x6a4/frame 0xfffffe00a5eba770
trap_pfault() at trap_pfault+0x186/frame 0xfffffe00a5eba8b0
trap() at trap+0x5e7/frame 0xfffffe00a5ebaa90
calltrap() at calltrap+0x8/frame 0xfffffe00a5ebaa90
--- trap 0xc, rip = 0xffffffff849e0252, rsp = 0xfffffe00a5ebab60, rbp = 0xfffffe00a5ebab90 ---
sctp_ss_rrp_packet_done() at sctp_ss_rrp_packet_done+0xf2/frame 0xfffffe00a5ebab90
sctp_med_chunk_output() at sctp_med_chunk_output+0x439c/frame 0xfffffe00a5ebb740
sctp_chunk_output() at sctp_chunk_output+0x2b25/frame 0xfffffe00a5ebc3a0
sctp_inpcb_free() at sctp_inpcb_free+0xbcc/frame 0xfffffe00a5ebc430
sctp_close() at sctp_close+0x1fb/frame 0xfffffe00a5ebc510
soclose() at soclose+0x3fe/frame 0xfffffe00a5ebc620
_fdrop() at _fdrop+0x58/frame 0xfffffe00a5ebc650
closef() at closef+0x686/frame 0xfffffe00a5ebc840
fdescfree_fds() at fdescfree_fds+0x1fa/frame 0xfffffe00a5ebc8b0
fdescfree() at fdescfree+0x903/frame 0xfffffe00a5ebca90
fork1() at fork1+0x81e/frame 0xfffffe00a5ebcc10
sys_rfork() at sys_rfork+0x1c2/frame 0xfffffe00a5ebcd30
amd64_syscall() at amd64_syscall+0x425/frame 0xfffffe00a5ebcf30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00a5ebcf30
--- syscall (198, FreeBSD ELF64, nosys), rip = 0x289e4a, rsp = 0x7fffdff9af08, rbp = 0x7fffdff9af70 ---
KDB: enter: panic
[ thread pid 1060 tid 100513 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28e03da(%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         0x34dafa6b3cf4fcf3
rdx                    0x3ffff
rbx                          0
rsp         0xfffffe00a5eba4b0
rbp         0xfffffe00a5eba4d0
rsi                    0x40001
rdi         0xffffffff817bc96a  vprintf+0x35a
r8                           0
r9          0xfffffe00a5eb9fe8
r10                          0
r11                          0
r12         0xfffffe00a3c22c80
r13         0xfffffe00a5eba501
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 1060 (syz-executor.1) at 0xfffffe009e4d2a70:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 785 at 0xfffffe0058968a70
 ABI: FreeBSD ELF64
 flag: 0x10480080  flag2: 0
 arguments: /root/syz-executor.1
 reaper: 0xfffffe0053d60538 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe009ea6c9f0
   (map 0xfffffe009ea6c9f0)
   (map.pmap 0xfffffe009ea6cab0)
   (pmap 0xfffffe009ea6cb10)
 threads: 5
100110                   s                                   syz-executor.1
100503                   s                                   syz-executor.1
100508                   s                                   syz-executor.1
100510                   s                                   syz-executor.1
100513                   Run     CPU 0                       syz-executor.1
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 1060   785   785     0  T       (threaded)                  syz-executor.1
100110                   s                                   syz-executor.1
100503                   s                                   syz-executor.1
100508                   s                                   syz-executor.1
100510                   s                                   syz-executor.1
100513                   Run     CPU 0                       syz-executor.1
 1059   790   790     0  L       (threaded)                  syz-executor.2
100464                   S       nanslp  0xffffffff8405d5c1  syz-executor.2
100502                   S       connec  0xfffffe009ebeb85a  syz-executor.2
100507                   L      *sctp-in 0xfffffe009ea4d300  syz-executor.2
100511                   L      *sctp-in 0xfffffe009ea4d300  syz-executor.2
100516                   S       uwait   0xfffffe009e4dac80  syz-executor.2
 1057   799   799     0  S       (threaded)                  syz-executor.3
100476                   S       nanslp  0xffffffff8405d5c1  syz-executor.3
100504                   S       piperd  0xfffffe009ea40730  syz-executor.3
100514                   S       uwait   0xfffffe009e9eb900  syz-executor.3
100515                   S       uwait   0xfffffe009eaf3000  syz-executor.3
  892     0     0     0  DL      aiordy  0xfffffe009eba0538  [aiod4]
  891     0     0     0  DL      aiordy  0xfffffe009eba0a70  [aiod3]
  890     0     0     0  DL      aiordy  0xfffffe009eb70000  [aiod2]
  889     0     0     0  DL      aiordy  0xfffffe009eb70538  [aiod1]
  826   817   826     0  Ss      select  0xfffffe00574212c0  dhclient
  821     1   821     0  Ss      select  0xfffffe009ea71e40  dhclient
  817   801   436    65  S       select  0xfffffe0058b1a6c0  dhclient
  801   436   436     0  S       wait    0xfffffe0058968538  sh
  799   780   799     0  Ss      nanslp  0xffffffff8405d5c1  syz-executor.3
  790   780   790     0  Ss      nanslp  0xffffffff8405d5c1  syz-executor.2
  785   780   785     0  Ss      nanslp  0xffffffff8405d5c1  syz-executor.1
  784   780   784     0  Ss      piperd  0xfffffe009e9f08b8  syz-executor.0
  780   778   778     0  S       (threaded)                  syz-fuzzer
100107                   S       uwait   0xfffffe00575e1300  syz-fuzzer
100120                   S       uwait   0xfffffe0058785180  syz-fuzzer
100121                   S       uwait   0xfffffe0058785280  syz-fuzzer
100122                   S       uwait   0xfffffe0058785600  syz-fuzzer
100123                   S       uwait   0xfffffe0057026a00  syz-fuzzer
100124                   S       uwait   0xfffffe0058785400  syz-fuzzer
100125                   S       uwait   0xfffffe0058956d80  syz-fuzzer
100126                   S       uwait   0xfffffe0058956080  syz-fuzzer
100128                   S       kqread  0xfffffe005888c000  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffffe00589680b0  csh
  776   694   776     0  Ss      select  0xfffffe0058b1a2c0  sshd
  760     1   760     0  Ss+     ttyin   0xfffffe0057014cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe00575f94b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00575f9cb0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00575f64b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00575f6cb0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00575f24b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00575f2cb0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00575ed4b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe00575edcb0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8405d5c0  cron
  694     1   694     0  Ss      select  0xfffffe00574211c0  sshd
  507     1   507     0  Ss      select  0xfffffe0058b1a740  syslogd
  436     1   436     0  Ss      wait    0xfffffe00588de000  devd
  435     1   435    65  Ss      select  0xfffffe0058b1a9c0  dhclient
  350     1   350     0  Ss      select  0xfffffe0058b1aa40  dhclient
  347     1   347     0  Ss      select  0xfffffe0057421640  dhclient
   23     0     0     0  DL      syncer  0xffffffff84185960  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe005877da70  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100085                   D       qsleep  0xffffffff84183660  [bufdaemon]
100088                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100101                   D       sdflush 0xfffffe00588404e8  [/ 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 0xffffffff84a6d5a0  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff847651a0  [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                   CanRun                              [idle: cpu0]
100004                   Run     CPU 1                       [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       -       0xfffffe0057415a00  [acpi_task_0]
100078                   D       -       0xfffffe0057415a00  [acpi_task_1]
100079                   D       -       0xfffffe0057415a00  [acpi_task_2]
100081                   D       -       0xfffffe005419e400  [CAM taskq]
db> show all locks
Process 1060 (syz-executor.1) thread 0xfffffe00a3c22c80 (100513)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe009eb55a90) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3355
exclusive sleep mutex sctp-inp (inp) r = 0 (0xfffffe00a3c50958) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3322
exclusive rw sctp-info (sctp-info) r = 0 (0xfffffe00081ba7a8) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:3321
exclusive sleep mutex sctp-create (inp_create) r = 0 (0xfffffe00a3c50978) 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          676         1193K         1830
          vfscache            3         1025K            3
          inodedep          153          569K          372
               pcb           36          546K          837
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          134          261K         1141
            acpica         1674          184K        55237
         vnet_data            1          168K            1
              vmem            3          146K            4
           tidhash            3          141K            3
            linker          355          140K          383
           pagedep           16          132K          255
        tfo_ccache            1          128K            1
          filedesc           16          121K          513
            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
           kdtrace          221           45K         1582
              umtx          352           44K          352
               BPF           22           36K           22
              temp           34           33K         1904
            dirrem          128           32K          295
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          127           32K          137
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
            ifaddr           67           19K           69
         ufs_mount            4           17K            5
           lltable           52           17K           52
              proc            3           17K            3
          freefile          128           16K          293
          routetbl          128           16K          419
               tty           16           16K           16
           ithread           99           16K           99
            bus-sc           34           15K         1691
            KTRACE          100           13K          100
             ifnet            7           13K            7
       ether_multi          152           13K          162
              kenv           95           12K           95
      eventhandler          133           12K          133
         CAM queue            5           11K         1528
              GEOM           61           10K          487
              rman           84           10K          425
         in6_multi           65            9K           65
              ksem            4            9K            4
         bmsafemap            2            9K          350
              UART           12            9K           12
           devstat            4            9K            4
         sctp_timw           32            8K           32
               rpc            2            8K            2
             shmfd            1            8K           24
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          295
         taskqueue           63            7K           63
            sglist            5            7K            5
           CAM DEV            3            6K          510
            kqueue           60            6K         1069
              cred           23            6K          211
            plimit           21            6K          364
            DEVFSP           75            5K          144
       ufs_dirhash           24            5K           24
               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           58            4K         1066
           acpisem           28            4K           28
             hhook           15            4K           17
           session           25            4K           36
          terminal           11            3K           11
         proc-args           44            3K          560
         sctp_atcl            6            3K          602
            diradd           18            3K          328
           uidinfo            3            3K            8
             lockf           20            3K           33
         sctp_stro            2            2K          170
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
             mkdir           16            2K          486
         ipsec-saq            2            2K            2
             selfd           31            2K        22313
            ip6ndp           12            2K           13
            Unitno           29            2K           47
          sctp_ifa           13            2K           14
           CAM XPT           22            2K          543
         newdirblk           12            2K          243
          in_multi            6            2K            8
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
            select           10            2K           47
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
          freework            5            2K          917
           softdep            1            1K            1
          freeblks            4            1K          324
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           14
      NFSD session            1            1K            1
        CAM periph            4            1K          271
             ipsec            3            1K            3
          sctp_ifn            6            1K           14
          indirdep            3            1K          240
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
            crypto            4            1K           15
 encap_export_host           12            1K           12
       inpcbpolicy           19            1K          294
              pfil            4            1K            4
              cdev            2            1K            2
               osd           12            1K           65
    chacha20random            1            1K            1
         sctp_atky            8            1K          782
      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            8
            feeder            7            1K            7
             xform            3            1K          148
           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
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
            soname            5            1K         3888
               iov            1            1K        14419
          pmchooks            1            1K            1
         sctp_athm            6            1K          624
          sctp_vrf            1            1K            1
          sctp_map            4            1K          340
              vnet            1            1K            1
           entropy            2            1K           38
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
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           Per-cpu            1            1K            1
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            statfs            0            0K          414
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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
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8321     984      497858       0     254   38113280        0
              pbuf   2624       0     973           0       0       2    2553152        0
              mbuf    256    8764     806      755663       0     254    2449920        0
          BUF TRIE    144     195   11565        1518       0      62    1693440        0
        malloc-384    384    4321       9        4543       0      30    1662720        0
       malloc-4096   4096     386       7        1557       0       2    1609728        0
        malloc-128    128   11838      35       11913       0     126    1519744        0
        RADIX NODE    144    8841     282       47261       0      62    1313712        0
       UMA Slabs 0    112   10337      28       10337       0     126    1160880        0
         vmem btag     56   16133     114       16133       0     254     909832        0
      mbuf_cluster   2048     360       2         360       0     254     741376        0
         FFS inode   1160     508      31         801       0       8     625240        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    1104     126       17041       0      30     324720        0
            THREAD   1808     162      14         516       0       8     318208        0
        malloc-256    256    1057     173        3682       0      62     314880        0
         malloc-64     64    4480     119        6699       0     254     294336        0
        256 Bucket   2048     128      10       14122       0       8     282624        0
             VNODE    448     546      75         841       0      30     278208        0
         malloc-16     16   14753     247       16371       0     254     240000        0
      malloc-32768  32768       0       7         187       0       1     229376        0
            DEVCTL   1024      21     199         151       0       0     225280        0
      malloc-65536  65536       1       2          59       0       1     196608        0
      malloc-65536  65536       1       2         137       0       1     196608        0
      malloc-16384  16384       7       5         254       0       1     196608        0
         UMA Zones    768     242       2         242       0      16     187392        0
         malloc-32     32    5598     198        6381       0     254     185472        0
        malloc-128    128    1217      54       26267       0     126     162688        0
         MAP ENTRY     96    1309     371       55037       0     126     161280        0
       tcp_bbr_map    128    1078     162        5516       0     126     158720        0
     FPU_save_area    832     164      25        2239       0      16     157248        0
        malloc-128    128    1086      30        5370       0     126     142848        0
       malloc-1024   1024     133       3         150       0      16     139264        0
       FFS2 dinode    256     508      32         801       0      62     138240        0
       S VFS Cache    104    1007     280        1333       0     126     133848        0
          ksiginfo    112      60     984        1787       0     126     116928        0
           VMSPACE   2544      31      11        1039       0       4     106848        0
              PROC   1336      57      18        1064       0       8     100200        0
      malloc-32768  32768       1       2         131       0       1      98304        0
       mbuf_packet    256      47     313        1197       0     254      92160        0
          UMA Kegs    384     227       6         227       0      30      89472        0
            clpbuf   2624       0      32          27       0      16      83968        0
         filedesc0   1072      59      18        1066       0       8      82544        0
       malloc-8192   8192       9       1         110       0       1      81920        0
    ertt_txseginfo     40    1376     543        9353       0     254      76760        0
       malloc-8192   8192       8       1          10       0       1      73728        0
             g_bio    408       0     180       10410       0      30      73440        0
        128 Bucket   1024      46      21         745       0      16      68608        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       0       1           8       0       1      65536        0
       malloc-8192   8192       4       4          32       0       1      65536        0
       malloc-4096   4096      14       2          27       0       2      65536        0
            socket    960      37      27        1879       0     254      61440        0
       malloc-2048   2048      12      16         367       0       8      57344        0
       malloc-2048   2048      12      14         577       0       8      53248        0
        malloc-256    256     181      14         754       0      62      49920        0
        malloc-256    256      58     137        1835       0      62      49920        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
         32 Bucket    256      54     126        3939       0      62      46080        0
         sctp_asoc   2288       2      18         170       0     254      45760        0
       malloc-1024   1024      10      34        1570       0      16      45056        0
         64 Bucket    512      71      17        2711       0      30      45056        0
         malloc-64     64     517     176        1621       0     254      44352        0
            pcpu-8      8    4660     460        4816       0     254      40960        0
        malloc-256    256      46     104         450       0      62      38400        0
           sctp_ep   1272       4      26         359       0     254      38160        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36       14358       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-128    128      61     218         323       0     126      35712        0
        malloc-384    384      79      11         124       0      30      34560        0
        malloc-384    384      45      45         641       0      30      34560        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-64     64      76     428       36226       0     254      32256        0
            da_ccb    544       0      56        2727       0      16      30464        0
             tcpcb   1080       8      20          54       0     254      30240        0
              pipe    744      21      19         309       0      16      29760        0
         TURNSTILE    136     177      33         177       0      62      28560        0
         malloc-64     64     101     340        1667       0     254      28224        0
        malloc-256    256      82      23         470       0      62      26880        0
        sctp_raddr    736       2      31         170       0     254      24288        0
         16 Bucket    144      59     109         414       0      62      24192        0
             KNOTE    160      28     122       27370       0      62      24000        0
            ttyinq    160     135      15         300       0      62      24000        0
             Files     80     206      94        8029       0     126      24000        0
          8 Bucket     80      45     255        1124       0     126      24000        0
        malloc-128    128     158      28         482       0     126      23808        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-384    384      54       6          56       0      30      23040        0
        malloc-256    256      60      30         461       0      62      23040        0
       malloc-4096   4096       3       2        1049       0       2      20480        0
       malloc-4096   4096       4       1           7       0       2      20480        0
       malloc-2048   2048       2       8          42       0       8      20480        0
       malloc-1024   1024       3      17         171       0      16      20480        0
         malloc-64     64     228      87         390       0     254      20160        0
        malloc-128    128      95      60         447       0     126      19840        0
        SLEEPQUEUE     88     177      47         177       0     126      19712        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-1024   1024       8       8          35       0      16      16384        0
        malloc-512    512       0      32         131       0      30      16384        0
        malloc-512    512       0      32          78       0      30      16384        0
               PWD     32      18     486         333       0     254      16128        0
         malloc-64     64     169      83         263       0     254      16128        0
         malloc-32     32      88     416         815       0     254      16128        0
     udplite_inpcb    496       2      30          62       0     254      15872        0
        malloc-384    384      22      18         362       0      30      15360        0
        malloc-256    256      25      35         188       0      62      15360        0
       tcp_bbr_pcb    832       3      15          38       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-2048   2048       2       4           4       0       8      12288        0
       malloc-1024   1024       8       4         183       0      16      12288        0
       malloc-1024   1024       7       5           7       0      16      12288        0
         malloc-64     64      53     136         373       0     254      12096        0
         malloc-32     32      91     287        4357       0     254      12096        0
         tcp_inpcb    496       9      15          54       0     254      11904        0
         udp_inpcb    496       6      18         173       0     254      11904        0
        malloc-128    128      55      38         486       0     126      11904        0
        malloc-128    128      38      55         155       0     126      11904        0
              kenv    258      15      30        1027       0      30      11610        0
     routing nhops    256      27      18          34       0      62      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-2048   2048       3       1           3       0       8       8192        0
       malloc-1024   1024       2       6          22       0      16       8192        0
        malloc-512    512       6      10           6       0      30       8192        0
        malloc-512    512       5      11          76       0      30       8192        0
        malloc-512    512       8       8           8       0      30       8192        0
           rtentry    176      30      16          34       0      62       8096        0
              PGRP     88      25      67          36       0     126       8096        0
          rl_entry     40      51     151          51       0     254       8080        0
sctp_stream_msg_out    112       0      72          23       0     254       8064        0
        sctp_laddr     48       4     164         302       0     254       8064        0
             udpcb     32       8     244         235       0     254       8064        0
              ertt     72       8     104          54       0     126       8064        0
         malloc-64     64      61      65         317       0     254       8064        0
         malloc-32     32     123     129         284       0     254       8064        0
         malloc-32     32      56     196          77       0     254       8064        0
         malloc-32     32      41     211         607       0     254       8064        0
         malloc-32     32      51     201         222       0     254       8064        0
         malloc-32     32      17     235          35       0     254       8064        0
          4 Bucket     48       7     161          64       0     254       8064        0
          2 Bucket     32      57     195         618       0     254       8064        0
      vtnet_tx_hdr     24       0     334      245805       0     254       8016        0
         malloc-16     16       0     500           7       0     254       8000        0
         malloc-16     16      25     475         195       0     254       8000        0
         malloc-16     16      57     443         517       0     254       8000        0
         malloc-16     16      24     476         708       0     254       8000        0
         malloc-16     16      39     461         198       0     254       8000        0
         malloc-16     16     287     213       25357       0     254       8000        0
         malloc-16     16       4     496         176       0     254       8000        0
             ripcb    496       2      14           5       0     254       7936        0
        sctp_readq    152       0      52          22       0     254       7904        0
        sctp_chunk    152       1      51          79       0     254       7904        0
           cryptop    280       0      28          11       0      30       7840        0
             AIOCB    552       0      14           4       0      16       7728        0
             unpcb    256      11      19        1198       0     254       7680        0
        malloc-256    256      13      17         558       0      62       7680        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           6       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
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
              AIOP     32       4     122           4       0     254       4032        0
               AIO    208       0      19           2       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_rack_pcb    832       0       0           0       0      16          0        0
      tcp_rack_map    112       0       0           0       0     126          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
           tcp_log    416       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
             tcptw     88       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
            AIOLIO    272       0       0           0       0      30          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
        TMPFS node    224       0       0           0       0      62          0        0
           NCLNODE    592       0       0           0       0      16          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
  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 (328):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2021/09/28 19:10 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/28 14:57 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/28 13:52 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/28 10:33 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/28 07:38 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/28 04:30 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/28 01:43 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/27 23:27 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/27 19:12 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/27 17:57 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/27 15:40 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/27 14:33 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/27 13:29 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/27 09:51 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/27 08:37 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/27 08:32 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/27 07:21 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-main 2021/09/25 16:24 freebsd-src f766826fe3b8 8cac236e console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/29 07:11 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/29 06:03 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/29 04:54 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/29 04:26 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/29 03:05 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/29 01:02 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 23:57 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 22:54 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 21:25 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 20:34 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 17:47 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 16:26 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 16:01 freebsd-src f3aa0098a82e d82cb927 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 11:54 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 09:51 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 08:44 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 05:38 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 04:05 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 02:54 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 01:43 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/28 00:27 freebsd-src 72c89ce97ba3 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/27 22:24 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/27 20:56 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/27 17:00 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/27 12:37 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/27 11:06 freebsd-src 74237127e340 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/27 06:04 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
ci-freebsd-i386 2021/09/27 04:44 freebsd-src 15d077995bd2 78494d16 console log report Fatal trap NUM: page fault in sctp_ss_rrp_packet_done
* Struck through repros no longer work on HEAD.