syzbot


panic: ASan: Invalid access, 2-byte read in sctp_ss_prio_add

Status: fixed on 2021/09/21 09:01
Reported-by: syzbot+a429e23a442ed6b6fbbe@syzkaller.appspotmail.com
Fix commit: 34b1efcea19d sctp: use a valid outstream when adding it to the scheduler
First crash: 572d, last: 572d

Sample crash report:
panic: ASan: Invalid access, 2-byte read at 0xfffffe009af37420, UMAUseAfterFree(fd)
cpuid = 0
time = 522
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe0097ceca70
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe0097cecbd0
vpanic() at vpanic+0x2c5/frame 0xfffffe0097ceccb0
panic() at panic+0xb5/frame 0xfffffe0097cecd70
__asan_load2_noabort() at __asan_load2_noabort+0x167/frame 0xfffffe0097cece30
sctp_ss_prio_add() at sctp_ss_prio_add+0xfa/frame 0xfffffe0097cece90
sctp_lower_sosend() at sctp_lower_sosend+0x7300/frame 0xfffffe0097ced380
sctp_sosend() at sctp_sosend+0x729/frame 0xfffffe0097ced620
sosend() at sosend+0x11e/frame 0xfffffe0097ced690
kern_sendit() at kern_sendit+0x58d/frame 0xfffffe0097ced7f0
freebsd32_sendmsg() at freebsd32_sendmsg+0x559/frame 0xfffffe0097ced9f0
ia32_syscall() at ia32_syscall+0x41f/frame 0xfffffe0097cedbf0
int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0xfbffcf78
KDB: enter: panic
[ thread pid 3864 tid 104403 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28e6bca(%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         0x1e6e3a9058b96a6a
rdx                    0x40001
rbx                          0
rsp         0xfffffe0097cecbb0
rbp         0xfffffe0097cecbd0
rsi                          0
rdi         0xfffffe009249f828
r8                         0x3
r9          0xfffffe0097cec708
r10                          0
r11         0xfffffe009b6d0a70
r12         0xfffffe009b6d0560
r13         0xfffffe0097cecc01
r14         0xffffffff82c68b80  .str.18
r15         0xffffffff82c68b80  .str.18
rip         0xffffffff817a7f6b  kdb_enter+0x6b
rflags                0x200046  kernload+0x46
kdb_enter+0x6b: movq    $0,0x28e6bca(%rip)
db> show proc
Process 3864 (syz-executor.1) at 0xfffffe009b4c1a70:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 784 at 0xfffffe008f893538
 ABI: FreeBSD ELF32
 flag: 0x10080480  flag2: 0
 arguments: /root/syz-executor.1
 reaper: 0xfffffe0053d51538 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe009b6ee000
   (map 0xfffffe009b6ee000)
   (map.pmap 0xfffffe009b6ee0c0)
   (pmap 0xfffffe009b6ee120)
 threads: 2
103268                   s                                   syz-executor.1
104403                   Run     CPU 0                       syz-executor.1
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 3864   784   784     0  T       (threaded)                  syz-executor.1
103268                   s                                   syz-executor.1
104403                   Run     CPU 0                       syz-executor.1
 3168     1   783     0  S       uwait   0xfffffe009ab51c80  syz-executor.0
 3165     1   789     0  S       uwait   0xfffffe009ab51000  syz-executor.2
 3163     1   796     0  S       uwait   0xfffffe00924d8280  syz-executor.3
 3162     1   783     0  S       uwait   0xfffffe00925ae980  syz-executor.0
 3154     1   789     0  S       uwait   0xfffffe008fa61680  syz-executor.2
 3152     1   796     0  S       uwait   0xfffffe00924d8480  syz-executor.3
 3151     1   783     0  S       uwait   0xfffffe00924d8780  syz-executor.0
 3148     1   784     0  S       uwait   0xfffffe0092076780  syz-executor.1
 3146     1   789     0  S       umtxn   0xfffffe0095967f00  syz-executor.2
 3144     1   796     0  S       uwait   0xfffffe00925ae780  syz-executor.3
 3143     1   783     0  S       uwait   0xfffffe0095967c00  syz-executor.0
 3141     1   784     0  S       uwait   0xfffffe00925ae200  syz-executor.1
 3139     1   783     0  S       uwait   0xfffffe008fa61180  syz-executor.0
 3137     1   789     0  S       uwait   0xfffffe00925ae580  syz-executor.2
 3135     1   789     0  S       uwait   0xfffffe00925ae680  syz-executor.2
 3129     1   784     0  S       uwait   0xfffffe0092076880  syz-executor.1
 3128     1   783     0  S       uwait   0xfffffe009ab51600  syz-executor.0
 3125     1   789     0  S       uwait   0xfffffe0095967b00  syz-executor.2
 3118     1   789     0  S       uwait   0xfffffe00925aec80  syz-executor.2
 3117     1   789     0  S       uwait   0xfffffe0095967800  syz-executor.2
 2631     1   796     0  S       uwait   0xfffffe00924d8080  syz-executor.3
 2625     1   796     0  S       uwait   0xfffffe00925aee80  syz-executor.3
 2617     1   796     0  S       uwait   0xfffffe0092076e80  syz-executor.3
 2611     1   784     0  S       uwait   0xfffffe0091fed580  syz-executor.1
 2607     1   784     0  S       uwait   0xfffffe00924d8500  syz-executor.1
 2604     1   784     0  S       uwait   0xfffffe0058392100  syz-executor.1
 2602     1   784     0  S       uwait   0xfffffe0092522780  syz-executor.1
 2601     1   784     0  S       uwait   0xfffffe0091fed480  syz-executor.1
 2310     0     0     0  DL      aiordy  0xfffffe009aaa7a70  [aiod4]
 2309     0     0     0  DL      aiordy  0xfffffe0091faaa70  [aiod3]
 2308     0     0     0  DL      aiordy  0xfffffe00924bc538  [aiod2]
 2307     0     0     0  DL      aiordy  0xfffffe009ae86000  [aiod1]
 1750  1742  1750     0  Ss      select  0xfffffe009ab51ec0  dhclient
 1746     1  1746     0  Ss      select  0xfffffe009ab516c0  dhclient
 1742  1733   436    65  S       select  0xfffffe009ab51a40  dhclient
 1733   436   436     0  S       wait    0xfffffe008f893000  sh
 1722     1  1722    65  Ss      select  0xfffffe009ab51dc0  dhclient
 1582     1  1582     0  Ss      select  0xfffffe009ab51bc0  dhclient
 1579     1  1579     0  Ss      select  0xfffffe009ab515c0  dhclient
 1549     1  1549    65  Ss      select  0xfffffe009ab518c0  dhclient
 1377     1  1377     0  Ss      select  0xfffffe009ab51ac0  dhclient
 1372     1  1372     0  Ss      select  0xfffffe009ab51b40  dhclient
 1345     1  1345    65  Ss      select  0xfffffe00924d8640  dhclient
 1097     1  1097     0  Ss      select  0xfffffe00924d83c0  dhclient
 1093     1  1093     0  Ss      select  0xfffffe00924d8440  dhclient
  796   780   796     0  Ss      piperd  0xfffffe008f821ba0  syz-executor.3
  789   780   789     0  Ss      piperd  0xfffffe009248d000  syz-executor.2
  784   780   784     0  Ss      wait    0xfffffe008f893538  syz-executor.1
  783   780   783     0  Ss      piperd  0xfffffe009248d8b8  syz-executor.0
  780   778   778     0  S       (threaded)                  syz-fuzzer
100108                   S       uwait   0xfffffe0058392580  syz-fuzzer
100121                   S       uwait   0xfffffe0058789400  syz-fuzzer
100122                   S       uwait   0xfffffe0058392300  syz-fuzzer
100123                   S       uwait   0xfffffe0092076980  syz-fuzzer
100124                   S       uwait   0xfffffe0092076a80  syz-fuzzer
100125                   S       kqread  0xfffffe008f8ad800  syz-fuzzer
100126                   S       uwait   0xfffffe0092076b80  syz-fuzzer
100127                   S       uwait   0xfffffe0091fed680  syz-fuzzer
100128                   S       uwait   0xfffffe0091fed780  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffffe008fa6fb20  csh
  776   694   776     0  Ss      select  0xfffffe00920765c0  sshd
  760     1   760     0  Ss+     ttyin   0xfffffe0056fe1cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe00583ee0b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00583ee4b0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00583ee8b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00583eecb0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00583960b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00583964b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00583968b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe0058396cb0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8405ba01  cron
  694     1   694     0  Ss      select  0xfffffe0091e45540  sshd
  507     1   507     0  Ss      select  0xfffffe0091e459c0  syslogd
  436     1   436     0  Ss      wait    0xfffffe008f8a5538  devd
  435     1   435    65  Ss      select  0xfffffe0091e45840  dhclient
  350     1   350     0  Ss      select  0xfffffe0091e45b40  dhclient
  347     1   347     0  Ss      select  0xfffffe0091e45bc0  dhclient
   23     0     0     0  DL      syncer  0xffffffff84181b40  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe0056ab8000  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100083                   D       qsleep  0xffffffff8417fa40  [bufdaemon]
100086                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100099                   D       sdflush 0xfffffe008f8b9ce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841b7d80  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100081                   D       psleep  0xffffffff841ab8b8  [dom0]
100084                   D       launds  0xffffffff841ab8c4  [laundry: dom0]
100085                   D       umarcl  0xffffffff81e9dde0  [uma]
   18     0     0     0  DL      -       0xffffffff83e12ba0  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff8487a460  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff84d93d30  [pf purge]
   15     0     0     0  DL      -       0xffffffff8417aec0  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8417aec0  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8417aec0  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8417aec0  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100046                   D       -       0xffffffff83c98240  [doneq0]
100047                   D       -       0xffffffff83c981c0  [async]
100080                   D       -       0xffffffff83c98040  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056ab1c88  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe00541aed80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe00541aed30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff841a5960  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100037                   D       -       0xffffffff8402efc0  [g_event]
100038                   D       -       0xffffffff8402f000  [g_up]
100039                   D       -       0xffffffff8402f040  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100028                   D       -       0xfffffe0053e16e00  [thr_0]
100029                   D       -       0xfffffe0053e16e80  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100010                   I                                   [swi6: task queue]
100011                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100030                   I                                   [swi1: netisr 0]
100031                   I                                   [swi3: vm]
100032                   I                                   [swi4: clock (0)]
100033                   I                                   [swi4: clock (1)]
100034                   I                                   [swi1: hpts]
100035                   I                                   [swi1: hpts]
100048                   I                                   [irq24: virtio_pci0]
100049                   I                                   [irq25: virtio_pci0]
100050                   I                                   [irq26: virtio_pci0]
100051                   I                                   [irq27: virtio_pci0]
100052                   I                                   [irq28: virtio_pci1]
100053                   I                                   [irq29: virtio_pci1]
100054                   I                                   [irq30: virtio_pci1]
100055                   I                                   [irq31: virtio_pci1]
100056                   I                                   [irq32: virtio_pci1]
100061                   I                                   [irq10: virtio_pci2]
100063                   I                                   [irq1: atkbd0]
100064                   I                                   [irq12: psm0]
100065                   I                                   [swi0: uart uart++]
100073                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0053d51538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841a6900  [audit]
    0     0     0     0  RLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8402fec0  [swapper]
100005                   D       -       0xfffffe0053c0d800  [softirq_0]
100006                   D       -       0xfffffe0053c0d600  [softirq_1]
100007                   D       -       0xfffffe0053c0d400  [if_io_tqg_0]
100008                   D       -       0xfffffe0053c0d200  [if_io_tqg_1]
100009                   D       -       0xfffffe0053c0d000  [if_config_tqg_0]
100012                   Run     CPU 1                       [thread taskq]
100013                   D       -       0xfffffe000791a400  [inm_free taskq]
100015                   D       -       0xfffffe000791a200  [kqueue_ctx taskq]
100016                   D       -       0xfffffe000791a100  [linuxkpi_irq_wq]
100017                   D       -       0xfffffe000791a000  [aiod_kick taskq]
100018                   D       -       0xfffffe0053df6e00  [in6m_free taskq]
100019                   D       -       0xfffffe0053df6d00  [pci_hp taskq]
100020                   D       -       0xfffffe0053df6c00  [linuxkpi_short_wq_0]
100021                   D       -       0xfffffe0053df6c00  [linuxkpi_short_wq_1]
100022                   D       -       0xfffffe0053df6c00  [linuxkpi_short_wq_2]
100023                   D       -       0xfffffe0053df6c00  [linuxkpi_short_wq_3]
100024                   D       -       0xfffffe0053df6b00  [linuxkpi_long_wq_0]
100025                   D       -       0xfffffe0053df6b00  [linuxkpi_long_wq_1]
100026                   D       -       0xfffffe0053df6b00  [linuxkpi_long_wq_2]
100027                   D       -       0xfffffe0053df6b00  [linuxkpi_long_wq_3]
100036                   D       -       0xfffffe0053df6a00  [firmware taskq]
100040                   D       -       0xfffffe0053df6900  [crypto_0]
100041                   D       -       0xfffffe0053df6900  [crypto_1]
100057                   D       -       0xfffffe0053df6700  [vtnet0 rxq 0]
100058                   D       -       0xfffffe0053df6600  [vtnet0 txq 0]
100059                   D       -       0xfffffe0053df6500  [vtnet0 rxq 1]
100060                   D       -       0xfffffe0053df6400  [vtnet0 txq 1]
100062                   D       vtbslp  0xfffffe0056fbc300  [virtio_balloon]
100066                   D       -       0xfffffe0053df6300  [mca taskq]
100071                   D       -       0xffffffff82c6fb00  [deadlkres]
100075                   D       -       0xfffffe005838be00  [acpi_task_0]
100076                   D       -       0xfffffe005838be00  [acpi_task_1]
100077                   D       -       0xfffffe005838be00  [acpi_task_2]
100079                   D       -       0xfffffe0053df6800  [CAM taskq]
db> show all locks
Process 3864 (syz-executor.1) thread 0xfffffe009b6d0560 (104403)
exclusive sleep mutex sctp-send-tcb (tcbs) r = 0 (0xfffffe009c70a1c0) locked @ /syzkaller/managers/i386/kernel/sys/netinet/sctp_output.c:13125
Process 0 (kernel) thread 0xfffffe0053df21e0 (100012)
exclusive sleep mutex kernel arena (kernel arena) r = 0 (0xffffffff840b0680) locked @ /syzkaller/managers/i386/kernel/sys/kern/subr_vmem.c:789
exclusive sleep mutex vmem list lock (vmem list lock) r = 0 (0xffffffff83409bc0) locked @ /syzkaller/managers/i386/kernel/sys/kern/subr_vmem.c:784
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4216         4338K         4244
          tcp_hpts            6         3201K            6
         sysctloid        34320         2027K        34387
             vtbuf           24         1968K           46
              kobj          327         1308K          487
            newblk            5         1025K         9014
          vfscache            3         1025K            3
               pcb          262          800K         7057
          filedesc           66          521K         5539
          inodedep            9          515K         3378
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          205          414K         3984
              vmem            3          274K            6
            acpica         1674          184K        54844
         vnet_data            1          168K            1
           tidhash            3          141K            3
            linker          357          140K          412
           pagedep            9          130K         2844
        tfo_ccache            1          128K            1
            DEVFS1          107          107K          124
               sem            4          106K            4
               BPF           46           88K           51
               bus          989           81K         3482
          mtx_pool            2           72K            2
          syncache            1           68K            1
         sctp_stro           50           65K         1410
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          511           64K          511
         sctp_atcl          167           63K         4598
              umtx          440           55K          440
           kdtrace          283           54K         8286
              temp           35           33K         3019
         hostcache            1           32K            1
               shm            1           32K           14
            DEVFS3          126           32K          136
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
            ifaddr           71           21K           75
        DEVFS_RULE           56           20K           56
          routetbl          163           18K          645
         ufs_mount            5           17K            6
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
           lltable           45           14K          204
            bus-sc           33           14K         1694
       ether_multi          157           13K          197
            KTRACE          100           13K          100
             ifnet            7           13K            7
              ksem           31           12K          148
              kenv           95           12K           95
      eventhandler          133           12K          133
         CAM queue            5           11K         1528
              rman           84           10K          425
              GEOM           60           10K          489
         in6_multi           71            9K           71
         sctp_atky          217            9K         6167
              UART           12            9K           12
           devstat            4            9K            4
            kqueue           95            9K         3894
         sctp_timw           32            8K           32
               rpc            2            8K            2
         bmsafemap            1            8K         3300
             shmfd            1            8K           15
       pfs_vncache            1            8K            1
            DEVFSP          120            8K          687
         pfs_nodes           20            8K           20
     audit_evclass          236            8K          294
              cred           26            7K          343
         taskqueue           60            7K           60
            sglist            5            7K            5
           CAM DEV            3            6K          510
            plimit           24            6K          516
           pwddesc           93            6K         3898
       ufs_dirhash           24            5K           24
               UMA          270            5K          270
          pf_ifnet           10            5K          112
           session           34            5K           50
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K           68
           acpisem           28            4K           28
             lockf           32            4K           61
             hhook           15            4K           17
             selfd           52            4K        48318
       fpukern_ctx            3            3K            3
         proc-args           53            3K          721
          terminal           11            3K           11
             xform           42            3K         1083
         sctp_athm          167            3K         4692
            select           19            3K          149
           uidinfo            3            3K           36
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
          sctp_ifa           15            2K           16
            ip6ndp           12            2K           15
            Unitno           27            2K          107
           CAM XPT           22            2K          543
          sctp_map          100            2K         2790
          in_multi            6            2K           14
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K          428
      NFSD session            1            1K            1
        CAM periph            4            1K          271
             ipsec            3            1K            3
          sctp_ifn            6            1K           16
               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          377
 encap_export_host           12            1K           12
          procdesc            5            1K           18
         newdirblk            4            1K         2756
             mkdir            4            1K         5512
            diradd            4            1K         3109
              pfil            4            1K            4
filedesc_to_leader            8            1K           16
              cdev            2            1K            2
       inpcbpolicy           15            1K         1665
               osd            8            1K         1075
    chacha20random            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            vnodes            1            1K           18
           CAM SIM            2            1K            2
              ktls            1            1K            1
            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
            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         7578
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320     970      252303       0     254   38051840        0
           tcp_log    416       0   15138      123762       0     254    6297408        0
              mbuf    256    8893    2597     1326830       0     254    2941440        0
              pbuf   2624       0     778           0       0       2    2041472        0
          BUF TRIE    144     188   11572        8132       0      62    1693440        0
        malloc-384    384    4250      20        4409       0      30    1639680        0
    ertt_txseginfo     40       0   39895      849871       0     254    1595800        0
        malloc-128    128   11344      64       11783       0     126    1460224        0
       malloc-4096   4096     328       3         566       0       2    1355776        0
      mbuf_cluster   2048     645       1         645       0     254    1323008        0
        RADIX NODE    144    8066     469      111758       0      62    1229040        0
       UMA Slabs 0    112   10801      32       10801       0     126    1213296        0
         vmem btag     56   19047      80       19047       0     254    1071112        0
        256 Bucket   2048     360      16       18688       0       8     770048        0
         FFS inode   1160     541      33        3589       0       8     665840        0
      malloc-16384  16384      33       7        2768       0       1     655360        0
       tcp_bbr_map    128       0    4092      191967       0     126     523776        0
       malloc-4096   4096     116       7        4427       0       2     503808        0
         VM OBJECT    264    1688     112       57807       0      30     475200        0
            THREAD   1808     189      31        4413       0       8     397760        0
            lkpimm    160       1    2324           1       0      62     372000        0
          lkpicurr    160       2    2323           2       0      62     372000        0
         MAP ENTRY     96    3083     403      219751       0     126     334656        0
       malloc-2048   2048     119      39        3108       0       8     323584        0
             VNODE    448     579      87        3629       0      30     298368        0
         sctp_asoc   2288      50      75        1395       0     254     286000        0
         malloc-64     64    4190     157       52862       0     254     278208        0
      malloc-65536  65536       4       0           4       0       1     262144        0
         malloc-16     16   14131     369       18612       0     254     232000        0
      malloc-32768  32768       0       7        2869       0       1     229376        0
        malloc-256    256     114     771       21009       0      62     226560        0
            DEVCTL   1024      14     206         158       0       0     225280        0
           sctp_ep   1280     117      57        3096       0     254     222720        0
           VMSPACE   2544      66      12        3843       0       4     198432        0
      malloc-65536  65536       1       2          32       0       1     196608        0
         UMA Zones    768     242       2         242       0      16     187392        0
         malloc-32     32    5364     180        5677       0     254     177408        0
        malloc-128    128    1218     115        8080       0     126     170624        0
        malloc-128    128    1263      70       32305       0     126     170624        0
            socket    944     122      58        6250       0     254     169920        0
       mbuf_packet    256      79     566       14703       0     254     165120        0
       FFS2 dinode    256     541      44        3589       0      62     149760        0
              PROC   1336      92      19        3871       0       8     148296        0
       S VFS Cache    104    1020     345        4160       0     126     141960        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2         324       0       1     131072        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2          18       0       1     131072        0
       malloc-2048   2048       4      60         511       0       8     131072        0
        128 Bucket   1024      88      31        2411       0      16     121856        0
        sctp_raddr    736      50     115        1544       0     254     121440        0
         filedesc0   1072      93      19        3898       0       8     120064        0
       malloc-1024   1024     110       6         127       0      16     118784        0
          ksiginfo    112      96     948         678       0     126     116928        0
       malloc-1024   1024      57      47        1927       0      16     106496        0
        malloc-256    256     201     204       12176       0      62     103680        0
        malloc-384    384     167      93        4619       0      30      99840        0
      malloc-32768  32768       0       3         130       0       1      98304        0
       malloc-2048   2048       7      41       15229       0       8      98304        0
        malloc-384    384       8     242        3377       0      30      96000        0
       malloc-8192   8192       5       6         140       0       1      90112        0
          UMA Kegs    384     227       6         227       0      30      89472        0
        malloc-128    128     304     378        3551       0     126      87296        0
            clpbuf   2624       0      32          41       0      16      83968        0
      malloc-16384  16384       4       1         179       0       1      81920        0
             g_bio    408       0     170       58280       0      30      69360        0
      malloc-32768  32768       2       0           2       0       1      65536        0
        malloc-256    256     166      74        3613       0      62      61440        0
         64 Bucket    512      87      33        5362       0      30      61440        0
        malloc-256    256     150      60         468       0      62      53760        0
       malloc-4096   4096      12       1          23       0       2      53248        0
         32 Bucket    256      69     126       14604       0      62      49920        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-8192   8192       6       0           6       0       1      49152        0
             tcpcb   1080       4      38        1064       0     254      45360        0
         malloc-64     64     605      88       22557       0     254      44352        0
             Files     80     405     145       18403       0     126      44000        0
         tcp_inpcb    496       4      84        1064       0     254      43648        0
       malloc-8192   8192       5       0           5       0       1      40960        0
            pcpu-8      8    4713     407        7191       0     254      40960        0
        malloc-384    384      75      25         204       0      30      38400        0
        malloc-256    256     114      36        1232       0      62      38400        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36       29294       0      16      36864        0
       malloc-4096   4096       9       0           9       0       2      36864        0
         malloc-64     64     479      88         691       0     254      36288        0
      malloc-32768  32768       1       0           1       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
       malloc-1024   1024      13      19        1618       0      16      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
         TURNSTILE    136     221      10         221       0      62      31416        0
              pipe    744      23      17         532       0      16      29760        0
       malloc-2048   2048       5       9         295       0       8      28672        0
       malloc-2048   2048      12       2         203       0       8      28672        0
         malloc-64     64     110     331        3615       0     254      28224        0
             KNOTE    160      28     147       42393       0      62      28000        0
          8 Bucket     80      55     295        2117       0     126      28000        0
        malloc-128    128       7     210         455       0     126      27776        0
        sctp_chunk    152      26     156         799       0     254      27664        0
        malloc-256    256      29      76        3067       0      62      26880        0
       malloc-8192   8192       2       1           4       0       1      24576        0
       malloc-4096   4096       2       4          20       0       2      24576        0
               PWD     32      45     711        2861       0     254      24192        0
         malloc-64     64     282      96        7992       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
        SLEEPQUEUE     88     221      35         221       0     126      22528        0
      tcp_rack_pcb    832       0      27         235       0      16      22464        0
       tcp_bbr_pcb    832       0      27         571       0      16      22464        0
       malloc-4096   4096       3       2        3159       0       2      20480        0
       malloc-2048   2048       2       8          32       0       8      20480        0
       malloc-1024   1024      17       3          17       0      16      20480        0
         malloc-32     32     318     312       10409       0     254      20160        0
         malloc-32     32     193     437        5250       0     254      20160        0
         udp_inpcb    496       6      34         394       0     254      19840        0
        malloc-128    128      89      66        2873       0     126      19840        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-384    384      36      14          40       0      30      19200        0
        malloc-384    384      36      14          41       0      30      19200        0
        malloc-256    256      40      35         383       0      62      19200        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       2       2          95       0       2      16384        0
       malloc-2048   2048       2       6         198       0       8      16384        0
       malloc-1024   1024      11       5          11       0      16      16384        0
         16 Bucket    144      63      49         549       0      62      16128        0
          2 Bucket     32      61     443        1236       0     254      16128        0
      vtnet_tx_hdr     24       0     668      442464       0     254      16032        0
       malloc-1024   1024       8       4           9       0      16      12288        0
        malloc-512    512      10      14         212       0      30      12288        0
        malloc-512    512      12      12          17       0      30      12288        0
        malloc-512    512       0      24         220       0      30      12288        0
sctp_stream_msg_out    112      27      81         311       0     254      12096        0
         malloc-64     64     127      62         723       0     254      12096        0
         malloc-64     64     158      31         167       0     254      12096        0
         malloc-16     16     346     404         633       0     254      12000        0
             ripcb    496       5      19         106       0     254      11904        0
              kenv    258      15      30        1046       0      30      11610        0
     routing nhops    256      27      18          38       0      62      11520        0
             unpcb    256      21      24        1430       0     254      11520        0
        malloc-256    256      34      11        1196       0      62      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       0       2          16       0       2       8192        0
       malloc-1024   1024       2       6          15       0      16       8192        0
       malloc-1024   1024       1       7          99       0      16       8192        0
        malloc-512    512       1      15          10       0      30       8192        0
        malloc-512    512       3      13         429       0      30       8192        0
        malloc-512    512       0      16          10       0      30       8192        0
           pf tags    104       0      78          17       0     126       8112        0
           rtentry    176      31      15          38       0      62       8096        0
             tcptw     88       0      92           3       0     254       8096        0
              PGRP     88      34      58          50       0     126       8096        0
          rl_entry     40     102     100         102       0     254       8080        0
        sctp_laddr     48       0     168        1258       0     254       8064        0
      tcp_rack_map    112       0      72         457       0     126       8064        0
             udpcb     32       6     246         495       0     254       8064        0
              ertt     72       4     108        1064       0     126       8064        0
         malloc-64     64      13     113         119       0     254       8064        0
         malloc-32     32     174      78         272       0     254       8064        0
         malloc-32     32     161      91         332       0     254       8064        0
         malloc-32     32      21     231         130       0     254       8064        0
         malloc-32     32      38     214         913       0     254       8064        0
          4 Bucket     48       6     162         115       0     254       8064        0
         malloc-16     16       6     494        1071       0     254       8000        0
         malloc-16     16      16     484          19       0     254       8000        0
         malloc-16     16     188     312        1428       0     254       8000        0
         malloc-16     16      31     469       28278       0     254       8000        0
         malloc-16     16     175     325        4914       0     254       8000        0
     udplite_inpcb    496       0      16         101       0     254       7936        0
        malloc-128    128      25      37         140       0     126       7936        0
        malloc-128    128      10      52         301       0     126       7936        0
        sctp_readq    152       0      52         126       0     254       7904        0
               AIO    208       0      38          20       0      62       7904        0
           cryptop    280       0      28          66       0      30       7840        0
             AIOCB    552       0      14          22       0      16       7728        0
       L VFS Cache    320       0      24          16       0      30       7680        0
        malloc-384    384       1      19         434       0      30       7680        0
        malloc-384    384       1      19          32       0      30       7680        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       7      55          65       0     126       6448        0
         domainset     40       0     126          44       0     254       5040        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-2048   2048       1       1           1       0       8       4096        0
        malloc-512    512       4       4           4       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
          sackhole     32       0     126           6       0     254       4032        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
       UMA Slabs 1    176       9      13           9       0      62       3872        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      12      27          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
            da_ccb    544       0       0           0       0      16          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    304       0       0           0       0     254          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
          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
               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
           NCLNODE    584       0       0           0       0      16          0        0
        TMPFS node    224       0       0           0       0      62          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
  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
        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-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
        malloc-512    512       0       0           0       0      30          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-i386 2021/07/13 16:38 freebsd-src 297e9f364b5a 70168d5c console log report panic: ASan: Invalid access, 2-byte read in sctp_ss_prio_add
* Struck through repros no longer work on HEAD.