syzbot


panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_select

Status: closed as invalid on 2022/04/02 23:28
Reported-by: syzbot+5e5197e5ba4cef5284f8@syzkaller.appspotmail.com
First crash: 1172d, last: 1172d

Sample crash report:
panic: ASan: Invalid access, 8-byte read at 0xfffffe009f633400, UMAUseAfterFree(fd)
cpuid = 0
time = 1630874135
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe00077e9b10
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe00077e9c70
vpanic() at vpanic+0x2c5/frame 0xfffffe00077e9d50
panic() at panic+0xb5/frame 0xfffffe00077e9e10
__asan_load8_noabort() at __asan_load8_noabort+0x376/frame 0xfffffe00077e9ed0
sctp_ss_default_select() at sctp_ss_default_select+0x112/frame 0xfffffe00077e9f10
sctp_med_chunk_output() at sctp_med_chunk_output+0xb12/frame 0xfffffe00077eaac0
sctp_chunk_output() at sctp_chunk_output+0x2b25/frame 0xfffffe00077eb710
sctp_timeout_handler() at sctp_timeout_handler+0x17e5/frame 0xfffffe00077eb850
softclock_call_cc() at softclock_call_cc+0x3d9/frame 0xfffffe00077eba00
softclock() at softclock+0x152/frame 0xfffffe00077eba50
ithread_loop() at ithread_loop+0x4f1/frame 0xfffffe00077ebbb0
fork_exit() at fork_exit+0xd0/frame 0xfffffe00077ebbf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00077ebbf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100032 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28e30aa(%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         0xc60215e51fe5ed77
rdx         0xdffff7c000000000
rbx                          0
rsp         0xfffffe00077e9c50
rbp         0xfffffe00077e9c70
rsi                        0x1
rdi         0xffffffff8408b740  cov_trace_pc
r8                         0x3
r9          0xfffffe00077e9788
r10                          0
r11                 0xb00c889c
r12         0xfffffe0053dfd020
r13         0xfffffe00077e9c01
r14         0xffffffff82c76240  .str.18
r15         0xffffffff82c76240  .str.18
rip         0xffffffff817ab00b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28e30aa(%rip)
db> show proc
Process 12 (intr) at 0xfffffe0053df0a70:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff8402f440
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff8402f440 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff840303c0
   (map 0xffffffff840303c0)
   (map.pmap 0xffffffff84030480)
   (pmap 0xffffffff840304e0)
 threads: 23
100012                   I                                   [swi6: task queue]
100013                   I                                   [swi6: Giant taskq]
100015                   I                                   [swi5: fast taskq]
100032                   Run     CPU 0                       [swi4: clock (0)]
100033                   I                                   [swi4: clock (1)]
100034                   Run     CPU 1                       [swi1: netisr 0]
100035                   I                                   [swi3: vm]
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]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 5063   796   790     0  R                                   syz-executor2062529
 5062   794   790     0  R       (threaded)                  syz-executor2062529
100106                   RunQ                                syz-executor2062529
104439                   RunQ                                syz-executor2062529
 5061   797   790     0  R                                   syz-executor2062529
 5060   793   790     0  R       (threaded)                  syz-executor2062529
102466                   RunQ                                syz-executor2062529
104438                   RunQ                                syz-executor2062529
  797   792   790     0  R                                   syz-executor2062529
  796   792   790     0  R                                   syz-executor2062529
  794   792   790     0  R                                   syz-executor2062529
  793   792   790     0  R                                   syz-executor2062529
  792   790   790     0  S       nanslp  0xffffffff8405af81  syz-executor2062529
  790   788   790     0  Ss      pause   0xfffffe0058b2c5e8  csh
  788   694   788     0  Ss      select  0xfffffe0056b8d540  sshd
  760     1   760     0  Ss+     ttyin   0xfffffe0056ff8cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe00575fbcb0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00583e50b0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00583e54b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00583e58b0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00583e5cb0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe005747f0b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe005747f4b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe005747f8b0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8405af80  cron
  694     1   694     0  Ss      select  0xfffffe0057416c40  sshd
  507     1   507     0  Ss      select  0xfffffe0056b8b9c0  syslogd
  436     1   436     0  Ss      select  0xfffffe0056b8bbc0  devd
  435     1   435    65  Ss      select  0xfffffe0057416bc0  dhclient
  350     1   350     0  Ss      select  0xfffffe0056b8bd40  dhclient
  347     1   347     0  Ss      select  0xfffffe0057416ac0  dhclient
   23     0     0     0  DL      vlruwt  0xfffffe0058537000  [vnlru]
   22     0     0     0  DL      syncer  0xffffffff84183360  [syncer]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100085                   D       qsleep  0xffffffff84181060  [bufdaemon]
100088                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100100                   D       sdflush 0xfffffe0058899ce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841b9580  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100083                   D       psleep  0xffffffff841ad0b8  [dom0]
100089                   D       launds  0xffffffff841ad0c4  [laundry: dom0]
100090                   D       umarcl  0xffffffff81eabff0  [uma]
   18     0     0     0  DL      -       0xffffffff83e120a0  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff84d67560  [sctp_iterator]
   16     0     0     0  RL                                  [pf purge]
   15     0     0     0  DL      -       0xffffffff8417c280  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8417c280  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8417c280  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8417c280  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100048                   D       -       0xffffffff83c97840  [doneq0]
100049                   D       -       0xffffffff83c977c0  [async]
100082                   D       -       0xffffffff83c97640  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe000791a888  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe00541b0d80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe00541b0d30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff841a7160  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100039                   D       -       0xffffffff8402e540  [g_event]
100040                   D       -       0xffffffff8402e580  [g_up]
100041                   D       -       0xffffffff8402e5c0  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100029                   D       -       0xfffffe00081ecb00  [thr_0]
100030                   D       -       0xfffffe00081ecb80  [thr_1]
100031                   D       -       0xffffffff8417d608  [alloc_0]
   12     0     0     0  RL      (threaded)                  [intr]
100012                   I                                   [swi6: task queue]
100013                   I                                   [swi6: Giant taskq]
100015                   I                                   [swi5: fast taskq]
100032                   Run     CPU 0                       [swi4: clock (0)]
100033                   I                                   [swi4: clock (1)]
100034                   Run     CPU 1                       [swi1: netisr 0]
100035                   I                                   [swi3: vm]
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                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0053d52538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841a8100  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8402f440  [swapper]
100005                   D       -       0xfffffe00081f4800  [if_config_tqg_0]
100006                   D       -       0xfffffe00081f4600  [softirq_0]
100007                   D       -       0xfffffe00081f4400  [softirq_1]
100008                   D       -       0xfffffe00081f4200  [if_io_tqg_0]
100009                   D       -       0xfffffe00081f4000  [if_io_tqg_1]
100010                   D       -       0xfffffe0053deed00  [in6m_free taskq]
100011                   D       -       0xfffffe0053deeb00  [deferred_unmount ta]
100014                   D       -       0xfffffe0053dee500  [thread taskq]
100016                   D       -       0xfffffe0053dee100  [linuxkpi_irq_wq]
100017                   D       -       0xfffffe0053df8e00  [kqueue_ctx taskq]
100018                   D       -       0xfffffe0053df8c00  [pci_hp taskq]
100019                   D       -       0xfffffe0053df8a00  [aiod_kick taskq]
100020                   D       -       0xfffffe0053df8800  [inm_free taskq]
100021                   D       -       0xfffffe0053df8600  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0053df8600  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0053df8600  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0053df8600  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0053df8100  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0053df8100  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0053df8100  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0053df8100  [linuxkpi_long_wq_3]
100038                   D       -       0xfffffe0053e00200  [firmware taskq]
100042                   D       -       0xfffffe0054188c00  [crypto_0]
100043                   D       -       0xfffffe0054188c00  [crypto_1]
100059                   D       -       0xfffffe0056eabd00  [vtnet0 rxq 0]
100060                   D       -       0xfffffe0056eabc00  [vtnet0 txq 0]
100061                   D       -       0xfffffe0056eabb00  [vtnet0 rxq 1]
100062                   D       -       0xfffffe0056eaba00  [vtnet0 txq 1]
100064                   D       vtbslp  0xfffffe0056b8be80  [virtio_balloon]
100068                   D       -       0xfffffe0056feaa00  [mca taskq]
100073                   D       -       0xffffffff82c7d1c1  [deadlkres]
100077                   D       -       0xfffffe00573eb600  [acpi_task_0]
100078                   D       -       0xfffffe00573eb600  [acpi_task_1]
100079                   D       -       0xfffffe00573eb600  [acpi_task_2]
100081                   D       -       0xfffffe0054188500  [CAM taskq]
db> show all locks
Process 5060 (syz-executor2062529) thread 0xfffffe009e5163a0 (104438)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe009f5e28b0) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:4342
Process 16 (pf purge) thread 0xfffffe00573fb3a0 (100074)
exclusive sleep mutex pf_srchash (pf_srchash) r = 0 (0xfffffe0058257bf0) locked @ /syzkaller/managers/main/kernel/sys/netpfil/pf/pf.c:1780
shared sx vnet_sxlock (vnet_sxlock) r = 0 (0xffffffff84187960) locked @ /syzkaller/managers/main/kernel/sys/netpfil/pf/pf.c:1658
exclusive sx pf end thread (pf end thread) r = 0 (0xffffffff847f15c0) locked @ /syzkaller/managers/main/kernel/sys/netpfil/pf/pf.c:1654
Process 12 (intr) thread 0xfffffe0053dfd020 (100032)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe009f4ff8b0) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctputil.c:1768
Process 12 (intr) thread 0xfffffe0053e261e0 (100034)
shared rw sctp-addr (sctp-addr) r = 0 (0xfffffe00081b6458) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:850
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe009f36d8b0) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:2143
shared rw sctp-info (sctp-info) r = 0 (0xfffffe00081b6418) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_pcb.c:2130
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4217         4339K         4245
          tcp_hpts            6         3201K            6
         sysctloid        34389         2031K        34460
             vtbuf           24         1968K           46
              kobj          326         1304K          485
            newblk            9         1026K         4996
          vfscache            3         1025K            3
          inodedep          334          637K         4345
               pcb           33          548K         8603
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
              vmem            3          274K            5
           subproc          115          228K         5128
            acpica         1674          184K        55623
         vnet_data            1          168K            1
         sctp_stro            5          148K         8157
           tidhash            3          141K            3
            linker          355          140K          383
           pagedep            9          130K         4289
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          104          104K          113
            dirrem          325           82K         4289
               bus          986           80K         3488
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          509           64K          509
         sctp_timw          164           41K          164
          freefile          325           41K         4287
              umtx          308           39K          308
           kdtrace          182           36K         9504
              temp           18           33K         1649
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          123           31K          133
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
               BPF           10           18K           10
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
            bus-sc           34           15K         1693
            KTRACE          100           13K          100
              kenv           95           12K           95
      eventhandler          133           12K          133
            ifaddr           30           12K           32
          routetbl           50           11K          176
         CAM queue            5           11K         1528
              GEOM           61           10K          489
              rman           84           10K          425
         bmsafemap            2            9K         4313
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K            1
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          295
         taskqueue           63            7K           63
            sglist            5            7K            5
           CAM DEV            3            6K          510
              cred           22            6K          263
            plimit           20            5K          392
       ufs_dirhash           24            5K           24
         sctp_atcl           12            5K        12421
               UMA          270            5K          270
                vt           11            5K           11
             ifnet            3            5K            3
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          filedesc            1            4K            1
           acpisem           28            4K           28
             hhook           15            4K           17
            kqueue           51            4K         5066
           pwddesc           51            4K         5064
       ether_multi           40            4K           50
           lltable           11            4K           11
          pf_ifnet            5            3K            6
         in6_multi           25            3K           25
          terminal           11            3K           11
           session           19            3K           34
           uidinfo            3            3K           11
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
             selfd           27            2K        67270
             lockf           16            2K           29
            Unitno           27            2K           39
           CAM XPT           22            2K          543
         proc-args           36            2K          503
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
               msi            9            2K            9
             clone            9            2K            9
          freework            5            2K         4287
         sctp_stri            2            1K         7798
           softdep            1            1K            1
             mkdir            8            1K         8554
          freeblks            4            1K         4286
            sahead            1            1K            1
          secasvar            1            1K            1
       vnodemarker            2            1K           44
      NFSD session            1            1K            1
        CAM periph            4            1K          271
            select            7            1K           29
         sctp_atky           17            1K        20579
             ipsec            3            1K            3
             nhops            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
          sctp_ifa            5            1K            6
            crypto            4            1K            4
            ip6ndp            4            1K            5
 encap_export_host           12            1K           12
         newdirblk            4            1K         4277
            diradd            4            1K         4306
          in_multi            2            1K            4
              pfil            4            1K            4
              cdev            2            1K            2
    chacha20random            1            1K            1
               osd            7            1K           18
       inpcbpolicy           10            1K          137
          sctp_ifn            2            1K            6
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
            DEVFSP            4            1K            9
             DEVFS            9            1K           10
               mld            2            1K            2
              igmp            2            1K            2
            vnodes            1            1K            1
           CAM SIM            2            1K            2
              ktls            1            1K            1
            feeder            7            1K            7
         sctp_athm           12            1K        16320
           tcpfunc            3            1K            3
        loginclass            3            1K            7
            prison            6            1K            6
       lkpikmalloc            5            1K            6
          sctp_map           10            1K         8518
        aesni_data            2            1K            2
            soname            5            1K        12003
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
             xform            2            1K           49
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          procdesc            1            1K            6
          pmchooks            1            1K            1
               tun            3            1K            3
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           40
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
          filecaps            1            1K           70
        dctcp data            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K         8515
         sctp_iter            0            0K            4
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K            4
         sctp_aadr            0            0K            0
        cubic data            0            0K            0
          cdg data            0            0K            0
        vegas data            0            0K            0
         htcp data            0            0K            0
            mqdata            0            0K            0
            tcp_do            0            0K            0
           tcp_fsb            0            0K            0
          chd data            0            0K            0
          pf_table            0            0K            0
           pf_rule            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
           pf_temp            0            0K            0
       NEWdirectio            0            0K            0
        NEWNFSnode            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
         NFSCL lck            0            0K            0
      NFSCL lckown            0            0K            0
      NFSCL client            0            0K            0
       NFSCL deleg            0            0K            0
        NFSCL open            0            0K            0
       NFSCL owner            0            0K            0
            NFS fh            0            0K            0
           NFS req            0            0K            0
              iavf            0            0K            0
               ixl            0            0K            0
     NFSD usrgroup            0            0K            0
       NFSD string            0            0K            0
       NFSD V4lock            0            0K            0
      NFSD V4state            0            0K            0
     NFSD srvcache            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    9685    1851     1792210       0     254   47251456        0
              mbuf    256   10219    3911     6706090       0     254    3617280        0
              pbuf   2624       0     973           0       0       2    2553152        0
          BUF TRIE    144     183   11577         830       0      62    1693440        0
        malloc-384    384    4152       8        4152       0      30    1597440        0
        malloc-128    128   11272      43       11305       0     126    1448320        0
       UMA Slabs 0    112   12451       2       12451       0     126    1394736        0
       malloc-4096   4096     327       3         579       0       2    1351680        0
         vmem btag     56   18720     119       18720       0     254    1054984        0
         FFS inode   1160     496      29        4784       0       8     609000        0
        RADIX NODE    144    3343     264      232507       0      62     519408        0
        malloc-384    384     333     787        4363       0      30     430080        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
        malloc-256    256     331    1139        7552       0      62     376320        0
      mbuf_cluster   2048     165       1         165       0     254     339968        0
        256 Bucket   2048     147      19       31057       0       8     339968        0
      malloc-65536  65536       5       0           5       0       1     327680        0
        malloc-256    256     444     801        8985       0      62     318720        0
           sctp_ep   1280       5     226        4263       0     254     295680        0
            THREAD   1808     130      24        4439       0       8     278432        0
       malloc-4096   4096      63       4        5087       0       2     274432        0
             VNODE    448     526      77        4816       0      30     270144        0
         malloc-64     64    3893     265        9445       0     254     266112        0
         VM OBJECT    264     918      87       64123       0      30     265320        0
         malloc-16     16   14029     221       14089       0     254     228000        0
            DEVCTL   1024       0     220         126       0       0     225280        0
      malloc-65536  65536       1       2          47       0       1     196608        0
      malloc-65536  65536       3       0           3       0       1     196608        0
         UMA Zones    768     242       2         242       0      16     187392        0
         malloc-32     32    5560     236        6122       0     254     185472        0
        malloc-128    128    1330      34       26308       0     126     174592        0
        malloc-256    256      37     593        9349       0      62     161280        0
       malloc-1024   1024     117      31        4542       0      16     151552        0
        malloc-128    128     329     818        4302       0     126     146816        0
       S VFS Cache    104     989     376        5292       0     126     141960        0
         sctp_asoc   2288       5      55        4259       0     254     137280        0
       FFS2 dinode    256     496      29        4783       0      62     134400        0
      malloc-65536  65536       0       2         136       0       1     131072        0
          ksiginfo    112      45     999          77       0     126     116928        0
         MAP ENTRY     96     871     305      106958       0     126     112896        0
           VMSPACE   2544      28       8        5042       0       4      91584        0
        malloc-128    128     672      41        8259       0     126      91264        0
          UMA Kegs    384     227       6         227       0      30      89472        0
        sctp_chunk    152      21     551      159189       0     254      86944        0
              PROC   1336      50      13        5063       0       8      84168        0
            clpbuf   2624       0      32          25       0      16      83968        0
        malloc-128    128     579      72       13963       0     126      83328        0
         filedesc0   1072      51      19        5064       0       8      75040        0
       malloc-8192   8192       7       2         110       0       1      73728        0
         64 Bucket    512     103      33        5133       0      30      69632        0
            socket    944      20      52        5599       0     254      67968        0
      malloc-65536  65536       0       1           8       0       1      65536        0
      malloc-32768  32768       0       2         130       0       1      65536        0
      malloc-16384  16384       4       0           4       0       1      65536        0
        malloc-256    256     180      75        5611       0      62      65280        0
        sctp_raddr    736       5      83        4259       0     254      64768        0
       malloc-2048   2048       4      26         535       0       8      61440        0
       malloc-2048   2048      12      18        5034       0       8      61440        0
         malloc-64     64     805     140       11063       0     254      60480        0
        128 Bucket   1024      49      10         726       0      16      60416        0
       malloc-8192   8192       7       0           7       0       1      57344        0
             g_bio    408       0     140        6341       0      30      57120        0
         32 Bucket    256      78     132        4592       0      62      53760        0
       malloc-4096   4096      11       2         551       0       2      53248        0
      malloc-16384  16384       1       2         161       0       1      49152        0
         malloc-64     64     540     216       13734       0     254      48384        0
       mbuf_packet    256       4     161       41638       0     254      42240        0
           DIRHASH   1024      34       6          34       0      16      40960        0
       malloc-8192   8192       5       0           5       0       1      40960        0
       malloc-1024   1024       4      36         532       0      16      40960        0
             NAMEI   1024       0      36       29550       0      16      36864        0
        malloc-512    512       4      68        7859       0      30      36864        0
            pcpu-8      8    4233     375        4261       0     254      36864        0
         malloc-64     64     147     420       67407       0     254      36288        0
        malloc-384    384      83       7          83       0      30      34560        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       1       1          16       0       1      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
        sctp_readq    152       1     207        3749       0     254      31616        0
        malloc-384    384      13      67       12762       0      30      30720        0
        malloc-384    384      69      11          79       0      30      30720        0
       malloc-1024   1024      22       6         912       0      16      28672        0
            da_ccb    544       0      49        1711       0      16      26656        0
         TURNSTILE    136     155      34         155       0      62      25704        0
       malloc-8192   8192       0       3          28       0       1      24576        0
       malloc-4096   4096       6       0           6       0       2      24576        0
       malloc-2048   2048      10       2          11       0       8      24576        0
       malloc-1024   1024      18       6          22       0      16      24576        0
    ertt_txseginfo     40       1     605        4512       0     254      24240        0
            ttyinq    160     135      15         300       0      62      24000        0
        malloc-128    128      21     165         280       0     126      23808        0
           ttyoutq    256      72      18         160       0      62      23040        0
       malloc-1024   1024       4      16          44       0      16      20480        0
               PWD     32      17     613        4374       0     254      20160        0
         malloc-32     32     122     508       12446       0     254      20160        0
         16 Bucket    144      48      92         335       0      62      20160        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-256    256      35      40         742       0      62      19200        0
              pipe    744       6      19         291       0      16      18600        0
        SLEEPQUEUE     88     155      37         155       0     126      16896        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       1       3        4471       0       2      16384        0
      vtnet_tx_hdr     24       0     668        6588       0     254      16032        0
        malloc-128    128      90      34         542       0     126      15872        0
        malloc-256    256      19      41        8583       0      62      15360        0
             tcpcb   1080       3      11           7       0     254      15120        0
       malloc-4096   4096       0       3           6       0       2      12288        0
       malloc-4096   4096       3       0           4       0       2      12288        0
       malloc-2048   2048       4       2           4       0       8      12288        0
       malloc-2048   2048       2       4           4       0       8      12288        0
         malloc-32     32     130     248        9367       0     254      12096        0
             Files     80      69      81       15220       0     126      12000        0
         malloc-16     16     495     255        1836       0     254      12000        0
         malloc-16     16      64     686       50363       0     254      12000        0
          8 Bucket     80      45     105        1569       0     126      12000        0
         udp_inpcb    496       6      18         126       0     254      11904        0
              kenv    258      15      30        1030       0      30      11610        0
       malloc-2048   2048       2       2          11       0       8       8192        0
       malloc-1024   1024       2       6           6       0      16       8192        0
       malloc-1024   1024       3       5           3       0      16       8192        0
        malloc-512    512       0      16         118       0      30       8192        0
        malloc-512    512       0      16           9       0      30       8192        0
        malloc-512    512      11       5          12       0      30       8192        0
           rtentry    176      13      33          17       0      62       8096        0
              PGRP     88      19      73          34       0     126       8096        0
          rl_entry     40      32     170          32       0     254       8080        0
sctp_stream_msg_out    112       3      69        3902       0     254       8064        0
        sctp_laddr     48       0     168           4       0     254       8064        0
             udpcb     32       6     246         126       0     254       8064        0
              ertt     72       3     109           7       0     126       8064        0
         malloc-64     64      24     102       13498       0     254       8064        0
         malloc-64     64      30      96          46       0     254       8064        0
         malloc-64     64      20     106         284       0     254       8064        0
         malloc-32     32      18     234          77       0     254       8064        0
         malloc-32     32      16     236         156       0     254       8064        0
         malloc-32     32      51     201         199       0     254       8064        0
         malloc-32     32      19     233          23       0     254       8064        0
          4 Bucket     48       5     163         112       0     254       8064        0
          2 Bucket     32      49     203         532       0     254       8064        0
         malloc-16     16      11     489          85       0     254       8000        0
         malloc-16     16      18     482          25       0     254       8000        0
         malloc-16     16      16     484        8581       0     254       8000        0
         malloc-16     16       0     500           6       0     254       8000        0
         malloc-16     16      14     486          14       0     254       8000        0
             ripcb    496       1      15           4       0     254       7936        0
         tcp_inpcb    496       3      13           7       0     254       7936        0
        malloc-128    128      33      29          89       0     126       7936        0
     routing nhops    256      10      20          17       0      62       7680        0
             unpcb    256       7      23        1182       0     254       7680        0
        malloc-384    384       9      11          12       0      30       7680        0
        malloc-256    256      11      19          51       0      62       7680        0
        malloc-256    256       8      22         264       0      62       7680        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       8      54           8       0     126       6448        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-2048   2048       0       2          12       0       8       4096        0
       malloc-2048   2048       2       0           2       0       8       4096        0
       malloc-1024   1024       0       4           1       0      16       4096        0
        malloc-512    512       2       6           2       0      30       4096        0
        malloc-512    512       5       3           5       0      30       4096        0
        malloc-512    512       2       6          45       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           5       0     254       4032        0
         malloc-64     64       2      61           2       0     254       4032        0
         malloc-32     32      18     108         112       0     254       4032        0
             KNOTE    160       0      25           8       0      62       4000        0
       UMA Slabs 1    176       8      14           8       0      62       3872        0
        malloc-384    384       0      10           1       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
   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    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_bbr_pcb    832       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
      tcp_rack_pcb    832       0       0           0       0      16          0        0
      tcp_rack_map    112       0       0           0       0     126          0        0
     udplite_inpcb    496       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
           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
             AIOCB    552       0       0           0       0      16          0        0
              AIOP     32       0       0           0       0     254          0        0
               AIO    208       0       0           0       0      62          0        0
        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
           NCLNODE    592       0       0           0       0      16          0        0
        TMPFS node    224       0       0           0       0      62          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
           cryptop    280       0       0           0       0      30          0        0
  linux_dma_object     24       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
         domainset     40       0       0           0       0     254          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-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-4096   4096       0       0           0       0       2          0        0
        malloc-512    512       0       0           0       0      30          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):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/09/05 20:50 freebsd-src bb61ccd530b7 d236a457 console log report syz C ci-freebsd-main panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_select
* Struck through repros no longer work on HEAD.