syzbot


panic: ASan: Invalid access, 4-byte read in sctp_sendall_completes

Status: fixed on 2021/09/11 12:21
Reported-by: syzbot+83ad16c877f1cb2bf8ad@syzkaller.appspotmail.com
Fix commit: 173a7a4ee4fa sctp: Fix iterator synchronization in sctp_sendall()
First crash: 575d, last: 516d

Sample crash report:
panic: ASan: Invalid access, 4-byte read at 0xfffffe009be99c58, UMAUseAfterFree(fd)
cpuid = 0
time = 1627543759
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe00576a9650
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe00576a97b0
vpanic() at vpanic+0x2c5/frame 0xfffffe00576a9890
panic() at panic+0xb5/frame 0xfffffe00576a9950
__asan_load4_noabort() at __asan_load4_noabort+0x216/frame 0xfffffe00576a9a10
sctp_sendall_completes() at sctp_sendall_completes+0x30/frame 0xfffffe00576a9a30
sctp_iterator_worker() at sctp_iterator_worker+0xf29/frame 0xfffffe00576a9b90
sctp_iterator_thread() at sctp_iterator_thread+0x5e/frame 0xfffffe00576a9bb0
fork_exit() at fork_exit+0xd0/frame 0xfffffe00576a9bf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00576a9bf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 17 tid 100075 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28eba4a(%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         0xf9daa17b842f7f3e
rdx         0xdffff7c000000000
rbx                          0
rsp         0xfffffe00576a9790
rbp         0xfffffe00576a97b0
rsi                        0x1
rdi         0xffffffff84087280  cov_trace_pc
r8                         0x3
r9          0xfffffe00576a92c8
r10                          0
r11                          0
r12         0xfffffe005838b1e0
r13         0xfffffe00576a9801
r14         0xffffffff82c5c500  .str.18
r15         0xffffffff82c5c500  .str.18
rip         0xffffffff8179e16b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28eba4a(%rip)
db> show proc
Process 17 (sctp_iterator) at 0xfffffe005755d538:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff8402af80
 ABI: null
 flag: 0x10000204  flag2: 0
 reaper: 0xffffffff8402af80 reapsubtree: 17
 sigparent: 20
 vmspace: 0xffffffff8402bf00
   (map 0xffffffff8402bf00)
   (map.pmap 0xffffffff8402bfc0)
   (pmap 0xffffffff8402c020)
 threads: 1
100075                   Run     CPU 0                       [sctp_iterator]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 3167   784   784     0  R       (threaded)                  syz-executor.1
103112                   RunQ                                syz-executor.1
103808                   RunQ                                syz-executor.1
 2572     1   784     0  S       uwait   0xfffffe009b959400  syz-executor.1
 2568     1   789     0  S       uwait   0xfffffe00925ae780  syz-executor.3
 2564     1   784     0  S       uwait   0xfffffe009b98a480  syz-executor.1
 2560     1   789     0  S       uwait   0xfffffe009bc9bb80  syz-executor.3
 2556     1   784     0  S       uwait   0xfffffe009bb09f00  syz-executor.1
 2552     1   789     0  S       uwait   0xfffffe009b959100  syz-executor.3
 2548     1   783     0  S       uwait   0xfffffe009bc9b580  syz-executor.0
 2542     1   783     0  S       uwait   0xfffffe009b959200  syz-executor.0
 2536     1   783     0  S       uwait   0xfffffe009b3e9280  syz-executor.0
 2532     1   783     0  S       uwait   0xfffffe0092536200  syz-executor.0
 2528     1   783     0  S       uwait   0xfffffe00925ae000  syz-executor.0
 2271     1   784     0  S       uwait   0xfffffe009b3e9200  syz-executor.1
 2267     1   789     0  S       uwait   0xfffffe009b959300  syz-executor.3
 2262     1   789     0  S       uwait   0xfffffe009b98ac80  syz-executor.3
 2259     1   784     0  S       uwait   0xfffffe009bb09b00  syz-executor.1
 2257     1   789     0  S       uwait   0xfffffe00925bf700  syz-executor.3
 2254     1   784     0  S       uwait   0xfffffe009bb09e00  syz-executor.1
 2250     1   789     0  S       uwait   0xfffffe00925bf500  syz-executor.3
 2246     1   789     0  S       uwait   0xfffffe009b98a180  syz-executor.3
 2242     1   789     0  S       umtxn   0xfffffe009b3e9880  syz-executor.3
 2239     1   789     0  S       uwait   0xfffffe0058ad0380  syz-executor.3
 2236     1   789     0  S       uwait   0xfffffe009b98a980  syz-executor.3
 2232     1   789     0  S       uwait   0xfffffe0092536100  syz-executor.3
 2219     1   784     0  S       uwait   0xfffffe009b3e9e80  syz-executor.1
 2218     1   783     0  S       uwait   0xfffffe009b98a880  syz-executor.0
 2214     1   783     0  S       uwait   0xfffffe009b98a380  syz-executor.0
 2210     1   783     0  S       uwait   0xfffffe0058ad0680  syz-executor.0
 2209     1   784     0  S       uwait   0xfffffe009b3e9a80  syz-executor.1
 2204     1   784     0  S       uwait   0xfffffe00925ae880  syz-executor.1
 2199     1   784     0  S       uwait   0xfffffe00925bf900  syz-executor.1
 2196     1   784     0  S       umtxn   0xfffffe0091f85a80  syz-executor.1
 2077     1   783     0  S       uwait   0xfffffe009b98a280  syz-executor.0
 2074     1   788     0  S       uwait   0xfffffe00925aeb80  syz-executor.2
 2069     1   783     0  S       uwait   0xfffffe009b3e9000  syz-executor.0
 2066     1   788     0  S       uwait   0xfffffe00925bf800  syz-executor.2
 2063     1   789     0  S       uwait   0xfffffe009b3e9c80  syz-executor.3
 2061     1   784     0  S       uwait   0xfffffe00925bfc00  syz-executor.1
 2057     1   783     0  S       uwait   0xfffffe00925aee80  syz-executor.0
 2054     1   783     0  S       uwait   0xfffffe00925ae680  syz-executor.0
 2053     1   788     0  S       uwait   0xfffffe0058ad0080  syz-executor.2
 2048     1   784     0  S       uwait   0xfffffe005700f280  syz-executor.1
 2045     1   788     0  S       uwait   0xfffffe0058a93100  syz-executor.2
 2042     1   789     0  S       uwait   0xfffffe0058a93c00  syz-executor.3
 2039     1   783     0  S       uwait   0xfffffe009b3e9d80  syz-executor.0
 2032     1   784     0  S       uwait   0xfffffe00925ae980  syz-executor.1
 2029     1   788     0  S       uwait   0xfffffe0058a93900  syz-executor.2
 2026     1   789     0  S       uwait   0xfffffe0058ad0480  syz-executor.3
 2023     1   783     0  S       uwait   0xfffffe00925bf600  syz-executor.0
 2020     1   784     0  S       uwait   0xfffffe005700f680  syz-executor.1
 2017     1   788     0  S       uwait   0xfffffe005700f580  syz-executor.2
 2014     1   789     0  S       uwait   0xfffffe009b98ab80  syz-executor.3
 2010     1   784     0  S       uwait   0xfffffe00925aed80  syz-executor.1
 2006     1   789     0  S       uwait   0xfffffe0058a93300  syz-executor.3
 2002     1   784     0  S       uwait   0xfffffe0091f85b80  syz-executor.1
 1998     1   789     0  S       uwait   0xfffffe0092536e00  syz-executor.3
 1991     1   789     0  S       uwait   0xfffffe0092536000  syz-executor.3
 1572     1  1572    65  Ss      select  0xfffffe00586bf2c0  dhclient
 1396     1  1396     0  Ss      select  0xfffffe00586bf9c0  dhclient
 1391     1  1391     0  Ss      select  0xfffffe00586bf840  dhclient
 1372     1  1372    65  Ss      select  0xfffffe00586bfbc0  dhclient
 1319     0     0     0  DL      aiordy  0xfffffe009b8f3a70  [aiod4]
 1318     0     0     0  DL      aiordy  0xfffffe00920a0000  [aiod3]
 1315     0     0     0  DL      aiordy  0xfffffe009b3d1a70  [aiod2]
 1314     0     0     0  DL      aiordy  0xfffffe009b3d1538  [aiod1]
 1229     1  1229     0  Ss      select  0xfffffe00587d0b40  dhclient
 1225     1  1225     0  Ss      select  0xfffffe00586bf3c0  dhclient
 1206     1  1206    65  Ss      select  0xfffffe00585482c0  dhclient
 1114     1  1114     0  Ss      select  0xfffffe0058548140  dhclient
 1104     1  1104     0  Ss      select  0xfffffe00585484c0  dhclient
 1085     1  1085    65  Ss      select  0xfffffe00586bf540  dhclient
 1015     1  1015     0  Ss      select  0xfffffe0058548b40  dhclient
 1008     1  1008     0  Ss      select  0xfffffe00588bb540  dhclient
  789   780   789     0  Ss      piperd  0xfffffe0092562ba0  syz-executor.3
  788   780   788     0  Ss      nanslp  0xffffffff84056ac1  syz-executor.2
  784   780   784     0  Rs                                  syz-executor.1
  783   780   783     0  Rs                                  syz-executor.0
  780   778   778     0  R       (threaded)                  syz-fuzzer
100103                   RunQ                                syz-fuzzer
100124                   RunQ                                syz-fuzzer
100125                   RunQ                                syz-fuzzer
100126                   S       uwait   0xfffffe0091f85180  syz-fuzzer
100127                   S       uwait   0xfffffe0091f85280  syz-fuzzer
100128                   S       uwait   0xfffffe0058ad0180  syz-fuzzer
100129                   S       uwait   0xfffffe0091f85680  syz-fuzzer
100130                   S       uwait   0xfffffe0058ad0280  syz-fuzzer
100131                   S       uwait   0xfffffe0091f85780  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffffe00920a05e8  csh
  776   694   776     0  Rs      CPU 1                       sshd
  762     1   762     0  Ss+     ttyin   0xfffffe0056ff18b0  getty
  761     1   761     0  Ss+     ttyin   0xfffffe00575e64b0  getty
  760     1   760     0  Ss+     ttyin   0xfffffe00575e6cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe00583ee4b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00583eecb0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00583eb4b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00583ebcb0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00583954b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe0058395cb0  getty
  698     1   698     0  Ss      nanslp  0xffffffff84056ac1  cron
  694     1   694     0  Ss      select  0xfffffe0058548dc0  sshd
  507     1   507     0  Ss      select  0xfffffe00588bba40  syslogd
  436     1   436     0  Ss      select  0xfffffe00588bbd40  devd
  435     1   435    65  Ss      select  0xfffffe0057539dc0  dhclient
  350     1   350     0  Ss      select  0xfffffe00585481c0  dhclient
  347     1   347     0  Ss      select  0xfffffe00588bbb40  dhclient
   23     0     0     0  DL      syncer  0xffffffff8417ea80  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe0058794a70  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100084                   D       qsleep  0xffffffff8417c8c0  [bufdaemon]
100087                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100096                   D       sdflush 0xfffffe005753cce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841b4d40  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100082                   D       psleep  0xffffffff841a8878  [dom0]
100085                   D       launds  0xffffffff841a8884  [laundry: dom0]
100086                   D       umarcl  0xffffffff81e95da0  [uma]
   18     0     0     0  DL      -       0xffffffff83e0dbe0  [rand_harvestq]
   17     0     0     0  RL      CPU 0                       [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff84b40e20  [pf purge]
   15     0     0     0  DL      -       0xffffffff84177d40  [soaiod4]
    9     0     0     0  DL      -       0xffffffff84177d40  [soaiod3]
    8     0     0     0  DL      -       0xffffffff84177d40  [soaiod2]
    7     0     0     0  DL      -       0xffffffff84177d40  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100047                   D       -       0xffffffff83c93340  [doneq0]
100048                   D       -       0xffffffff83c932c0  [async]
100081                   D       -       0xffffffff83c93140  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056ab1c88  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe00541acd80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe00541acd30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff841a2920  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100038                   D       -       0xffffffff8402a080  [g_event]
100039                   D       -       0xffffffff8402a0c0  [g_up]
100040                   D       -       0xffffffff8402a100  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100029                   D       -       0xfffffe0053e16e00  [thr_0]
100030                   D       -       0xfffffe0053e16e80  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100011                   I                                   [swi6: task queue]
100012                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100031                   I                                   [swi1: netisr 0]
100032                   I                                   [swi3: vm]
100033                   I                                   [swi4: clock (0)]
100034                   I                                   [swi4: clock (1)]
100035                   I                                   [swi1: hpts]
100036                   I                                   [swi1: hpts]
100049                   I                                   [irq24: virtio_pci0]
100050                   I                                   [irq25: virtio_pci0]
100051                   I                                   [irq26: virtio_pci0]
100052                   I                                   [irq27: virtio_pci0]
100053                   I                                   [irq28: virtio_pci1]
100054                   I                                   [irq29: virtio_pci1]
100055                   I                                   [irq30: virtio_pci1]
100056                   I                                   [irq31: virtio_pci1]
100057                   I                                   [irq32: virtio_pci1]
100062                   I                                   [irq10: virtio_pci2]
100064                   I                                   [irq1: atkbd0]
100065                   I                                   [irq12: psm0]
100066                   I                                   [swi0: uart uart++]
100074                   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 0xffffffff841a38c0  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8402af80  [swapper]
100005                   D       -       0xfffffe00081f1900  [softirq_0]
100006                   D       -       0xfffffe00081f1700  [softirq_1]
100007                   D       -       0xfffffe00081f1500  [if_io_tqg_0]
100008                   D       -       0xfffffe00081f1300  [if_io_tqg_1]
100009                   D       -       0xfffffe00081f1100  [if_config_tqg_0]
100010                   D       -       0xfffffe0053dede00  [deferred_unmount ta]
100013                   D       -       0xfffffe0053ded800  [thread taskq]
100015                   D       -       0xfffffe0053ded400  [linuxkpi_irq_wq]
100016                   D       -       0xfffffe0053ded200  [kqueue_ctx taskq]
100017                   D       -       0xfffffe0053ded000  [aiod_kick taskq]
100018                   D       -       0xfffffe0053df7d00  [pci_hp taskq]
100019                   D       -       0xfffffe0053df7b00  [inm_free taskq]
100020                   D       -       0xfffffe0053df7900  [in6m_free taskq]
100021                   D       -       0xfffffe0053df7700  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0053df7700  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0053df7700  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0053df7700  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0053df7200  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0053df7200  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0053df7200  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0053df7200  [linuxkpi_long_wq_3]
100037                   D       -       0xfffffe0053e02400  [firmware taskq]
100041                   D       -       0xfffffe0054181500  [crypto_0]
100042                   D       -       0xfffffe0054181500  [crypto_1]
100058                   D       -       0xfffffe0056a57100  [vtnet0 rxq 0]
100059                   D       -       0xfffffe0056a57000  [vtnet0 txq 0]
100060                   D       -       0xfffffe0056ec1e00  [vtnet0 rxq 1]
100061                   D       -       0xfffffe0056ec1d00  [vtnet0 txq 1]
100063                   D       vtbslp  0xfffffe0056fd6e80  [virtio_balloon]
100067                   D       -       0xfffffe0056ff6d00  [mca taskq]
100072                   D       -       0xffffffff82c63480  [deadlkres]
100077                   D       -       0xfffffe0054181e00  [acpi_task_0]
100078                   D       -       0xfffffe0054181e00  [acpi_task_1]
100079                   D       -       0xfffffe0054181e00  [acpi_task_2]
100080                   D       -       0xfffffe0056a57800  [CAM taskq]
 3168   788   788     0  Z                                   syz-executor.2
db> show all locks
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4216         4338K         4244
          tcp_hpts            6         3201K            6
         sysctloid        34320         2027K        34390
             vtbuf           24         1968K           46
              kobj          326         1304K          485
               pcb          464         1028K         5211
            newblk            9         1026K         8558
          vfscache            3         1025K            3
          filedesc          124          986K         4225
           subproc          257          535K         3309
          inodedep           24          521K         2465
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
              vmem            3          274K            6
            acpica         1674          184K        54712
         vnet_data            1          168K            1
           tidhash            3          141K            3
            linker          356          140K          396
           pagedep            9          130K         2127
        tfo_ccache            1          128K            1
            DEVFS1          107          107K          124
               sem            4          106K            4
         sctp_atcl          258           97K         3496
               BPF           46           88K           58
               bus          984           80K         3475
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          509           64K          509
              umtx          484           61K          484
           kdtrace          332           61K         6980
         sctp_stro           39           39K         1038
              temp           36           35K         2863
         hostcache            1           32K            1
               shm            1           32K           29
            DEVFS3          126           32K          136
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
          routetbl          142           21K          931
            ifaddr           70           20K           72
        DEVFS_RULE           56           20K           56
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
            bus-sc           33           14K         1692
            DEVFSP          212           14K          464
           lltable           43           14K          132
              ksem           33           13K           86
            KTRACE          100           13K          100
             ifnet            7           13K            7
       ether_multi          152           13K          162
              kenv           95           12K           95
      eventhandler          133           12K          133
         sctp_atky          297           11K         4643
         CAM queue            5           11K         1528
              GEOM           61           10K          489
              rman           84           10K          425
            kqueue          123           10K         3220
         in6_multi           65            9K           65
             xform          134            9K          482
         sctp_timw           33            9K           33
         bmsafemap            2            9K         2420
              UART           12            9K           12
           devstat            4            9K            4
          pf_table            4            8K          132
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
           pwddesc          120            8K         3122
         pfs_nodes           20            8K           20
     audit_evclass          236            8K          294
         taskqueue           63            7K           63
              cred           26            7K          276
            sglist            5            7K            5
           CAM DEV            3            6K          510
            plimit           24            6K          506
          pf_ifnet           15            6K          208
           pf_osfp           42            5K           42
       ufs_dirhash           24            5K           24
               UMA          270            5K          270
           session           35            5K           52
                vt           11            5K           11
         sctp_athm          258            5K         3577
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K           68
            dirrem           15            4K         2236
           acpisem           28            4K           28
             lockf           32            4K          114
             hhook           15            4K           17
             selfd           49            4K        42264
       fpukern_ctx            3            3K            3
         proc-args           52            3K          702
          terminal           11            3K           11
            select           19            3K          116
           uidinfo            3            3K           20
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
          freefile           15            2K         2180
            ip6ndp           12            2K           13
          sctp_ifa           13            2K           14
            Unitno           27            2K           87
           CAM XPT           22            2K          543
          in_multi            6            2K            8
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
          sctp_map           78            2K         2076
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
          freework            5            2K         3678
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lDevFlags * malloc            0            0K            0
tiDeviceHandle_t * malloc            0            0K            0
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ag_device_t malloc            0            0K            0
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filedesc_to_leader            0            0K           54
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320     975      307777       0     254   38072320        0
           tcp_log    416       0   20133      343646       0     254    8375328        0
              mbuf    256    8882    2458     1026523       0     254    2903040        0
              pbuf   2624       0     762           0       0       2    1999488        0
        RADIX NODE    144   10542    1409      111317       0      62    1720944        0
          BUF TRIE    144     351   11409        8829       0      62    1693440        0
        malloc-384    384    4117      23        4146       0      30    1589760        0
        malloc-128    128   11321      87       18316       0     126    1460224        0
       malloc-4096   4096     346       1         517       0       2    1421312        0
      mbuf_cluster   2048     645       1         645       0     254    1323008        0
       UMA Slabs 0    112   10882      23       10882       0     126    1221360        0
      malloc-16384  16384      62       7        2111       0       1    1130496        0
         vmem btag     56   19876     115       19877       0     254    1119496        0
       tcp_bbr_map    128       0    7440      150885       0     126     952320        0
    ertt_txseginfo     40       1   19795      476228       0     254     791840        0
         FFS inode   1160     570      32        2750       0       8     698320        0
        256 Bucket   2048     316      10       18212       0       8     667648        0
         VM OBJECT    264    1992     123       48210       0      30     558360        0
       malloc-2048   2048     226      38       16064       0       8     540672        0
       malloc-4096   4096     124       7        6085       0       2     536576        0
         MAP ENTRY     96    4574     424      181588       0     126     479808        0
            THREAD   1808     210      32        3810       0       8     437536        0
            lkpimm    160       1    2324           1       0      62     372000        0
          lkpicurr    160       2    2323           2       0      62     372000        0
           sctp_ep   1280     218      61        2273       0     254     357120        0
             VNODE    448     608      85        2790       0      30     310464        0
            socket    944     219      85        5278       0     254     286976        0
         malloc-64     64    3895     326       46182       0     254     270144        0
           VMSPACE   2544      93      12        3143       0       4     267120        0
      malloc-65536  65536       4       0           4       0       1     262144        0
      malloc-32768  32768       1       7        2008       0       1     262144        0
         sctp_asoc   2288      39      66        1038       0     254     240240        0
         malloc-16     16   13990     510       14873       0     254     232000        0
      malloc-32768  32768       0       7          48       0       1     229376        0
            DEVCTL   1024       0     220         153       0       0     225280        0
        malloc-256    256     203     607        9262       0      62     207360        0
      malloc-65536  65536       3       0           3       0       1     196608        0
        malloc-256    256     358     392       17192       0      62     192000        0
         UMA Zones    768     242       2         242       0      16     187392        0
              PROC   1336     120      15        3168       0       8     180360        0
         malloc-32     32    5407     137        5446       0     254     177408        0
       mbuf_packet    256      52     593       11419       0     254     165120        0
        malloc-128    128    1169      71       25657       0     126     158720        0
        sctp_chunk    152      39    1001        1525       0     254     158080        0
       FFS2 dinode    256     570      30        2750       0      62     153600        0
         filedesc0   1072     120      20        3122       0       8     150080        0
        128 Bucket   1024     110      33        2238       0      16     146432        0
       S VFS Cache    104    1026     300        3380       0     126     137904        0
        malloc-384    384     259      91        3497       0      30     134400        0
      malloc-65536  65536       0       2         156       0       1     131072        0
      malloc-65536  65536       0       2         312       0       1     131072        0
       malloc-1024   1024     124       4         141       0      16     131072        0
        malloc-128    128     698     325        6331       0     126     130944        0
       malloc-2048   2048      10      52         517       0       8     126976        0
            clpbuf   2624       0      48         686       0      16     125952        0
          ksiginfo    112     119     925        1022       0     126     116928        0
        malloc-384    384      45     225        2799       0      30     103680        0
       malloc-1024   1024      41      51        1224       0      16      94208        0
          UMA Kegs    384     227       6         227       0      30      89472        0
        sctp_raddr    736      44      77        1323       0     254      89056        0
       malloc-4096   4096      21       0          23       0       2      86016        0
        malloc-128    128     610      41        1356       0     126      83328        0
       malloc-8192   8192       7       3          36       0       1      81920        0
        malloc-256    256     241      74        2329       0      62      80640        0
             g_bio    408       0     170       45745       0      30      69360        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       0       1           8       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-32768  32768       0       2         130       0       1      65536        0
         64 Bucket    512     102      18        5465       0      30      61440        0
        malloc-384    384     137      13         543       0      30      57600        0
             Files     80     572     128       15857       0     126      56000        0
         32 Bucket    256      69     126       15468       0      62      49920        0
      malloc-16384  16384       1       2           9       0       1      49152        0
      malloc-16384  16384       3       0           3       0       1      49152        0
      malloc-16384  16384       3       0          18       0       1      49152        0
       malloc-8192   8192       4       2         105       0       1      49152        0
       malloc-8192   8192       6       0           6       0       1      49152        0
         malloc-64     64     580     176        3322       0     254      48384        0
       malloc-1024   1024      10      34         579       0      16      45056        0
            pcpu-8      8    4814     818        9054       0     254      45056        0
         malloc-64     64     579     114        3799       0     254      44352        0
        malloc-128    128     315      26         438       0     126      43648        0
        malloc-384    384      72      38         161       0      30      42240        0
        malloc-256    256     146      19        2627       0      62      42240        0
           DIRHASH   1024      34       6          34       0      16      40960        0
             tcpcb   1080       4      31         828       0     254      37800        0
         TURNSTILE    136     243      30         243       0      62      37128        0
             NAMEI   1024       0      36       25169       0      16      36864        0
       malloc-2048   2048       8      10         553       0       8      36864        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       0       2         160       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
        malloc-256    256      19     101         683       0      62      30720        0
      tcp_rack_pcb    832       0      36         190       0      16      29952        0
              pipe    744      23      17         464       0      16      29760        0
       malloc-4096   4096       4       3           9       0       2      28672        0
       malloc-2048   2048       3      11         107       0       8      28672        0
         malloc-64     64     313     128         905       0     254      28224        0
             KNOTE    160      27     148       34230       0      62      28000        0
     udplite_inpcb    496       0      56         455       0     254      27776        0
         tcp_inpcb    496       4      52         828       0     254      27776        0
        malloc-384    384      57      13          70       0      30      26880        0
        SLEEPQUEUE     88     243      45         243       0     126      25344        0
       malloc-4096   4096       3       3          97       0       2      24576        0
       malloc-1024   1024      15       9          45       0      16      24576        0
               PWD     32      73     683        2140       0     254      24192        0
         malloc-64     64     266     112        7068       0     254      24192        0
         malloc-64     64     283      95         557       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
          8 Bucket     80      54     246        2193       0     126      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-256    256      15      75        2385       0      62      23040        0
       malloc-2048   2048       6       4         214       0       8      20480        0
        malloc-128    128     141      14         881       0     126      19840        0
        malloc-128    128      77      78        2339       0     126      19840        0
       Mountpoints   2752       2       5           2       0       4      19264        0
       malloc-8192   8192       1       1           3       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-1024   1024       9       7          10       0      16      16384        0
        malloc-512    512       3      29         274       0      30      16384        0
        malloc-512    512      13      19         289       0      30      16384        0
         malloc-64     64     169      83         441       0     254      16128        0
         malloc-64     64     123     129       16596       0     254      16128        0
         malloc-32     32     316     188        6244       0     254      16128        0
          2 Bucket     32      68     436        1230       0     254      16128        0
      vtnet_tx_hdr     24       0     668      321549       0     254      16032        0
         malloc-16     16     532     468       28720       0     254      16000        0
       tcp_bbr_pcb    832       0      18         405       0      16      14976        0
       malloc-2048   2048       2       4         193       0       8      12288        0
       malloc-1024   1024       7       5           7       0      16      12288        0
        malloc-512    512      11      13          23       0      30      12288        0
      tcp_rack_map    112       0     108         363       0     126      12096        0
         malloc-32     32     245     133         406       0     254      12096        0
         malloc-32     32     135     243        3985       0     254      12096        0
         malloc-32     32      50     328        2698       0     254      12096        0
         16 Bucket    144      60      24         650       0      62      12096        0
             ripcb    496       5      19          74       0     254      11904        0
         udp_inpcb    496       6      18         249       0     254      11904        0
              kenv    258      15      30        1042       0      30      11610        0
             unpcb    256      20      25        1351       0     254      11520        0
        malloc-384    384      22       8          30       0      30      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       1       1           2       0       2       8192        0
       malloc-4096   4096       0       2           4       0       2       8192        0
       malloc-2048   2048       2       2           2       0       8       8192        0
       malloc-2048   2048       1       3          41       0       8       8192        0
       malloc-1024   1024       3       5        1318       0      16       8192        0
        malloc-512    512       0      16         125       0      30       8192        0
        malloc-512    512       0      16          14       0      30       8192        0
           pf tags    104       0      78           9       0     126       8112        0
           rtentry    176      30      16          34       0      62       8096        0
              PGRP     88      35      57          52       0     126       8096        0
          rl_entry     40     113      89         113       0     254       8080        0
sctp_stream_msg_out    112       4      68         241       0     254       8064        0
        sctp_laddr     48      60     108         845       0     254       8064        0
             udpcb     32       6     246         704       0     254       8064        0
              AIOP     32       4     248           4       0     254       8064        0
      ktls_session    192       4      38           4       0      62       8064        0
              ertt     72       4     108         828       0     126       8064        0
         malloc-32     32     101     151         312       0     254       8064        0
         malloc-32     32      38     214         793       0     254       8064        0
         malloc-32     32      54     198         118       0     254       8064        0
          4 Bucket     48       6     162         124       0     254       8064        0
         malloc-16     16       7     493          50       0     254       8000        0
         malloc-16     16      24     476         809       0     254       8000        0
         malloc-16     16      56     444        2280       0     254       8000        0
         malloc-16     16     199     301        2371       0     254       8000        0
         malloc-16     16      38     462          64       0     254       8000        0
         malloc-16     16     115     385        2188       0     254       8000        0
        malloc-128    128      26      36          69       0     126       7936        0
        sctp_readq    152       1      51         138       0     254       7904        0
               AIO    208       0      38          13       0      62       7904        0
           cryptop    280       0      28          16       0      30       7840        0
            itimer    352       0      22           5       0      30       7744        0
     routing nhops    256      27       3          34       0      62       7680        0
        malloc-256    256      17      13          40       0      62       7680        0
        malloc-256    256      14      16         440       0      62       7680        0
            AIOLIO    272       0      28          14       0      30       7616        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       7      55          94       0     126       6448        0
         domainset     40       0     126          67       0     254       5040        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-1024   1024       0       4           1       0      16       4096        0
        malloc-512    512       0       8          13       0      30       4096        0
        malloc-512    512       4       4           4       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
             tcptw     88       0      46           3       0     254       4048        0
          tcpreass     48       0      84           1       0     254       4032        0
          sackhole     32       0     126           4       0     254       4032        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
       UMA Slabs 1    176      10      12          10       0      62       3872        0
        malloc-384    384       1       9           7       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
            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
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    312       0       0           0       0     254          0        0
          pf mtags     48       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
             AIOCB    552       0       0           0       0      16          0        0
           NCLNODE    592       0       0           0       0      16          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
        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
  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
    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-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 (39):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2021/07/29 07:26 freebsd-src 7f8f79a5c444 b44001ce console log report panic: ASan: Invalid access, 4-byte read in sctp_sendall_completes
ci-freebsd-main 2021/07/22 08:24 freebsd-src 5ab82b00cca7 29c3f20f console log report panic: ASan: Invalid access, 4-byte read in sctp_sendall_completes
ci-freebsd-main 2021/07/11 19:13 freebsd-src 9c1c02093b90 8f5a7b8c console log report panic: ASan: Invalid access, 4-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/08/12 13:06 freebsd-src fc37be246021 6972b106 console log report panic: ASan: Invalid access, 4-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/08/10 02:34 freebsd-src 6bddade6114a 6972b106 console log report panic: ASan: Invalid access, 4-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/08/06 11:09 freebsd-src b3e87f133454 2f537099 console log report panic: ASan: Invalid access, 4-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/07/28 06:58 freebsd-src 941650aae976 17d6ab15 console log report panic: ASan: Invalid access, 4-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/07/27 13:22 freebsd-src 85ae35ef37c0 fd511809 console log report panic: ASan: Invalid access, 4-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/07/25 05:46 freebsd-src 40cb9b435782 4d1b57d4 console log report panic: ASan: Invalid access, 4-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/07/22 09:12 freebsd-src 5ab82b00cca7 29c3f20f console log report panic: ASan: Invalid access, 4-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/07/11 02:37 freebsd-src f52783fcf5cc 8f5a7b8c console log report panic: ASan: Invalid access, 4-byte read in sctp_sendall_completes
ci-freebsd-main 2021/09/07 00:58 freebsd-src 936f4a42fa2a 6ca60148 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-main 2021/09/05 15:38 freebsd-src 1f7a6325fe1b d236a457 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-main 2021/09/05 05:14 freebsd-src 1f7a6325fe1b d236a457 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-main 2021/09/05 02:10 freebsd-src 88a3af4da1aa d236a457 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-main 2021/09/03 09:00 freebsd-src cc2d08d3880c f62a5829 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-main 2021/09/03 00:54 freebsd-src cc2d08d3880c f62a5829 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-main 2021/08/31 02:34 freebsd-src d39e65b5bdc0 8f58a0ef console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-main 2021/08/25 21:25 freebsd-src e62175df4ec2 b599f2fc console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-main 2021/08/17 11:46 freebsd-src 5f99ae56c919 33c26cb7 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-main 2021/08/16 16:25 freebsd-src cc1345056b11 6652437d console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/07 15:45 freebsd-src 94d9439b6be6 6ca60148 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/07 01:27 freebsd-src 936f4a42fa2a 6ca60148 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/07 00:44 freebsd-src 936f4a42fa2a 6ca60148 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/06 11:07 freebsd-src bd11e253a9a4 6ca60148 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/06 10:15 freebsd-src bd11e253a9a4 6ca60148 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/06 08:58 freebsd-src bd11e253a9a4 d236a457 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/05 17:42 freebsd-src bb61ccd530b7 d236a457 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/05 13:15 freebsd-src 1f7a6325fe1b d236a457 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/04 16:57 freebsd-src 88a3af4da1aa d236a457 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/04 15:41 freebsd-src 88a3af4da1aa d236a457 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/04 11:33 freebsd-src cd85b97e0e70 d236a457 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/04 01:39 freebsd-src cd85b97e0e70 d236a457 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/03 03:47 freebsd-src cc2d08d3880c f62a5829 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/02 11:44 freebsd-src 7b529268a54a d0f0970b console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/09/01 23:31 freebsd-src d491b42535db 7eb7e152 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/08/29 01:30 freebsd-src 5bdf58e19609 be2c130d console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/08/22 10:56 freebsd-src f8c1b1a92966 b599f2fc console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
ci-freebsd-i386 2021/08/17 05:50 freebsd-src 5f99ae56c919 33c26cb7 console log report panic: ASan: Invalid access, NUM-byte read in sctp_sendall_completes
* Struck through repros no longer work on HEAD.