syzbot


panic: ASan: Invalid access, 8-byte read in sctp_ss_default_add

Status: fixed on 2021/09/20 20:59
Reported-by: syzbot+4a5431d7caa666f2c19c@syzkaller.appspotmail.com
Fix commit: 34b1efcea19d sctp: use a valid outstream when adding it to the scheduler
First crash: 577d, last: 507d
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add 27 450d 503d 0/2 auto-closed as invalid on 2022/02/11 22:39

Sample crash report:
panic: ASan: Invalid access, 8-byte read at 0xfffffe00a7829810, UMAUseAfterFree(fd)
cpuid = 1
time = 1625892792
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe00a6e60af0
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe00a6e60c50
vpanic() at vpanic+0x2c5/frame 0xfffffe00a6e60d30
panic() at panic+0xb5/frame 0xfffffe00a6e60e00
__asan_load8_noabort() at __asan_load8_noabort+0x36f/frame 0xfffffe00a6e60ec0
sctp_ss_default_add() at sctp_ss_default_add+0xf8/frame 0xfffffe00a6e60f10
sctp_lower_sosend() at sctp_lower_sosend+0x7300/frame 0xfffffe00a6e61400
sctp_sosend() at sctp_sosend+0x729/frame 0xfffffe00a6e616a0
sosend() at sosend+0x11e/frame 0xfffffe00a6e61710
kern_sendit() at kern_sendit+0x58d/frame 0xfffffe00a6e61880
sendit() at sendit+0x2b0/frame 0xfffffe00a6e618d0
sys_sendmsg() at sys_sendmsg+0x17d/frame 0xfffffe00a6e619f0
amd64_syscall() at amd64_syscall+0x425/frame 0xfffffe00a6e61bf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00a6e61bf0
--- syscall (198, FreeBSD ELF64, nosys), rip = 0x287eda, rsp = 0x7fffdfffdf08, rbp = 0x7fffdfffdf70 ---
KDB: enter: panic
[ thread pid 1915 tid 101454 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28f9c5a(%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         0xe277835b6c9e62ca
rdx                    0x40001
rbx                          0
rsp         0xfffffe00a6e60c30
rbp         0xfffffe00a6e60c50
rsi                          0
rdi         0xfffffe009e3ee0a8
r8                         0x3
r9          0xfffffe00a6e60788
r10                          0
r11         0xfffffe00a5e42190
r12         0xfffffe00a5e41c80
r13         0xfffffe00a6e60c01
r14         0xffffffff82c42700  .str.18
r15         0xffffffff82c42700  .str.18
rip         0xffffffff8178eddb  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28f9c5a(%rip)
db> show proc
Process 1915 (syz-executor.2) at 0xfffffe00a780a000:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 805 at 0xfffffe009bf1aa70
 ABI: FreeBSD ELF64
 flag: 0x10080480  flag2: 0
 arguments: /root/syz-executor.2
 reaper: 0xfffffe0053d51538 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe00a773e9f0
   (map 0xfffffe00a773e9f0)
   (map.pmap 0xfffffe00a773eab0)
   (pmap 0xfffffe00a773eb10)
 threads: 2
101409                   s                                   syz-executor.2
101454                   Run     CPU 1                       syz-executor.2
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 1927     1  1927    65  Ss      select  0xfffffe00a74cc740  dhclient
 1915   805   805     0  T       (threaded)                  syz-executor.2
101409                   s                                   syz-executor.2
101454                   Run     CPU 1                       syz-executor.2
 1782     1   805     0  S       uwait   0xfffffe00a5e45080  syz-executor.2
 1776     1   812     0  S       uwait   0xfffffe00a74ccd80  syz-executor.3
 1772     1   805     0  S       uwait   0xfffffe00a74cca80  syz-executor.2
 1771     1   812     0  S       uwait   0xfffffe009e9e0800  syz-executor.3
 1770     1   783     0  S       uwait   0xfffffe009e9e0780  syz-executor.0
 1768     1   784     0  S       uwait   0xfffffe009e9e0380  syz-executor.1
 1767     1   812     0  S       uwait   0xfffffe00a5e45d00  syz-executor.3
 1764     1   784     0  S       uwait   0xfffffe00a4d2a880  syz-executor.1
 1762     1   783     0  S       uwait   0xfffffe009e533a00  syz-executor.0
 1760     1   812     0  S       uwait   0xfffffe009e9e0080  syz-executor.3
 1756     1   805     0  S       uwait   0xfffffe00a74ccf00  syz-executor.2
 1755     1   812     0  S       uwait   0xfffffe009e45ca80  syz-executor.3
 1753     1   784     0  S       uwait   0xfffffe009bf29280  syz-executor.1
 1752     1   783     0  S       uwait   0xfffffe00a5e45480  syz-executor.0
 1751     1   812     0  S       uwait   0xfffffe009e9e0580  syz-executor.3
 1743     1   812     0  S       uwait   0xfffffe00a4c1f080  syz-executor.3
 1741     1   812     0  S       uwait   0xfffffe00a4c1f380  syz-executor.3
 1628     1  1628     0  Ss      select  0xfffffe00a74cc7c0  dhclient
 1625     1  1625     0  Ss      select  0xfffffe009e45cbc0  dhclient
 1611   436   436     0  R                                   sh
 1601     1  1601    65  Ss      select  0xfffffe00a74cc840  dhclient
 1521     1   805     0  S       uwait   0xfffffe009e45c000  syz-executor.2
 1513     1   812     0  S       uwait   0xfffffe00a5e45280  syz-executor.3
 1507     1   805     0  S       uwait   0xfffffe00a5e45a00  syz-executor.2
 1500     1   812     0  S       uwait   0xfffffe00a5e45580  syz-executor.3
 1497     1   805     0  S       uwait   0xfffffe009bd0ce80  syz-executor.2
 1488     1   812     0  S       uwait   0xfffffe00a5e45900  syz-executor.3
 1485     1   784     0  S       uwait   0xfffffe00a4d2a780  syz-executor.1
 1483     1   783     0  S       uwait   0xfffffe00a5e45680  syz-executor.0
 1479     1   805     0  S       uwait   0xfffffe00a4d2aa80  syz-executor.2
 1475     1   784     0  S       uwait   0xfffffe009e533900  syz-executor.1
 1474     1   783     0  S       uwait   0xfffffe00a4c1f180  syz-executor.0
 1470     1   805     0  S       uwait   0xfffffe005834a280  syz-executor.2
 1465     1   784     0  S       uwait   0xfffffe009e45c100  syz-executor.1
 1463     1   783     0  S       uwait   0xfffffe009bd0c180  syz-executor.0
 1459     1   805     0  S       uwait   0xfffffe009e9e0180  syz-executor.2
 1453     1   812     0  S       uwait   0xfffffe00a4d2a680  syz-executor.3
 1447     1   812     0  S       uwait   0xfffffe00573da000  syz-executor.3
 1442     1   812     0  S       uwait   0xfffffe00a4c1f300  syz-executor.3
 1437     1   812     0  S       uwait   0xfffffe009e533800  syz-executor.3
 1435     1   812     0  S       uwait   0xfffffe00573da100  syz-executor.3
 1402     1  1402     0  Ss      select  0xfffffe00a4c1f440  dhclient
 1399     1  1399     0  Ss      select  0xfffffe009e45c1c0  dhclient
 1376     1  1376    65  Ss      select  0xfffffe009e533440  dhclient
  956     1   956     0  Ss      select  0xfffffe00a4c1f5c0  dhclient
  953     1   953     0  Ss      select  0xfffffe00a4c1f2c0  dhclient
  812   780   812     0  Ss      piperd  0xfffffe009bc832e8  syz-executor.3
  805   780   805     0  Ss      wait    0xfffffe009bf1aa70  syz-executor.2
  784   780   784     0  Ss      piperd  0xfffffe009bc83ba0  syz-executor.1
  783   780   783     0  Ss      piperd  0xfffffe009e9815d0  syz-executor.0
  780   778   778     0  R       (threaded)                  syz-fuzzer
100089                   S       uwait   0xfffffe0056fde080  syz-fuzzer
100119                   S       nanslp  0xffffffff84055901  syz-fuzzer
100120                   S       uwait   0xfffffe009e533d00  syz-fuzzer
100121                   S       kqread  0xfffffe009bd18400  syz-fuzzer
100122                   S       uwait   0xfffffe0058748f00  syz-fuzzer
100123                   S       uwait   0xfffffe005834a080  syz-fuzzer
100124                   S       uwait   0xfffffe005834a180  syz-fuzzer
100125                   RunQ                                syz-fuzzer
100126                   S       uwait   0xfffffe009bf29080  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffffe009e4c90b0  csh
  776   694   776     0  Ss      select  0xfffffe009e5336c0  sshd
  760     1   760     0  Ss+     ttyin   0xfffffe0056fe0cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe00583e90b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00583e94b0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00583e98b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00583e9cb0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00583910b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00583914b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00583918b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe0058391cb0  getty
  698     1   698     0  Ss      nanslp  0xffffffff84055900  cron
  694     1   694     0  Ss      select  0xfffffe00573da740  sshd
  507     1   507     0  Ss      select  0xfffffe009bf295c0  syslogd
  436     1   436     0  Ss      wait    0xfffffe009bd04538  devd
  435     1   435    65  Ss      select  0xfffffe0058748240  dhclient
  350     1   350     0  Ss      select  0xfffffe009bf29340  dhclient
  347     1   347     0  Ss      select  0xfffffe00587482c0  dhclient
   23     0     0     0  DL      syncer  0xffffffff8417ba40  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe0058741a70  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100083                   D       qsleep  0xffffffff84179940  [bufdaemon]
100086                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100098                   D       sdflush 0xfffffe009bd22ce8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841b1c80  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100081                   D       psleep  0xffffffff841a57b8  [dom0]
100087                   D       launds  0xffffffff841a57c4  [laundry: dom0]
100088                   D       umarcl  0xffffffff81e7e5e0  [uma]
   18     0     0     0  DL      -       0xffffffff83e0caa0  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff84bde460  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff847d6d30  [pf purge]
   15     0     0     0  DL      -       0xffffffff84174dc0  [soaiod4]
    9     0     0     0  DL      -       0xffffffff84174dc0  [soaiod3]
    8     0     0     0  DL      -       0xffffffff84174dc0  [soaiod2]
    7     0     0     0  DL      -       0xffffffff84174dc0  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100046                   D       -       0xffffffff83c92240  [doneq0]
100047                   D       -       0xffffffff83c921c0  [async]
100080                   D       -       0xffffffff83c92040  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056aadc88  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe00541abd80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe00541abd30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff8419f860  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100037                   D       -       0xffffffff84028ec0  [g_event]
100038                   D       -       0xffffffff84028f00  [g_up]
100039                   D       -       0xffffffff84028f40  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100028                   D       -       0xfffffe0053e16e00  [thr_0]
100029                   D       -       0xfffffe0053e16e80  [thr_1]
   12     0     0     0  WL      (threaded)                  [intr]
100010                   I                                   [swi6: task queue]
100011                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100030                   I                                   [swi1: netisr 0]
100031                   I                                   [swi3: vm]
100032                   I                                   [swi4: clock (0)]
100033                   I                                   [swi4: clock (1)]
100034                   I                                   [swi1: hpts]
100035                   I                                   [swi1: hpts]
100048                   I                                   [irq24: virtio_pci0]
100049                   I                                   [irq25: virtio_pci0]
100050                   I                                   [irq26: virtio_pci0]
100051                   I                                   [irq27: virtio_pci0]
100052                   I                                   [irq28: virtio_pci1]
100053                   I                                   [irq29: virtio_pci1]
100054                   I                                   [irq30: virtio_pci1]
100055                   I                                   [irq31: virtio_pci1]
100056                   I                                   [irq32: virtio_pci1]
100061                   I                                   [irq10: virtio_pci2]
100063                   I                                   [irq1: atkbd0]
100064                   I                                   [irq12: psm0]
100065                   I                                   [swi0: uart uart++]
100073                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0053d51538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841a0800  [audit]
    0     0     0     0  RLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff84029dc0  [swapper]
100005                   D       -       0xfffffe0053c0d800  [softirq_0]
100006                   D       -       0xfffffe0053c0d600  [softirq_1]
100007                   D       -       0xfffffe0053c0d400  [if_io_tqg_0]
100008                   D       -       0xfffffe0053c0d200  [if_io_tqg_1]
100009                   D       -       0xfffffe0053c0d000  [if_config_tqg_0]
100012                   Run     CPU 0                       [thread taskq]
100013                   D       -       0xfffffe0007919400  [inm_free taskq]
100015                   D       -       0xfffffe0007919200  [kqueue_ctx taskq]
100016                   D       -       0xfffffe0007919100  [linuxkpi_irq_wq]
100017                   D       -       0xfffffe0007919000  [aiod_kick taskq]
100018                   D       -       0xfffffe0053df6e00  [in6m_free taskq]
100019                   D       -       0xfffffe0053df6d00  [pci_hp taskq]
100020                   D       -       0xfffffe0053df6c00  [linuxkpi_short_wq_0]
100021                   D       -       0xfffffe0053df6c00  [linuxkpi_short_wq_1]
100022                   D       -       0xfffffe0053df6c00  [linuxkpi_short_wq_2]
100023                   D       -       0xfffffe0053df6c00  [linuxkpi_short_wq_3]
100024                   D       -       0xfffffe0053df6b00  [linuxkpi_long_wq_0]
100025                   D       -       0xfffffe0053df6b00  [linuxkpi_long_wq_1]
100026                   D       -       0xfffffe0053df6b00  [linuxkpi_long_wq_2]
100027                   D       -       0xfffffe0053df6b00  [linuxkpi_long_wq_3]
100036                   D       -       0xfffffe0053df6a00  [firmware taskq]
100040                   D       -       0xfffffe0053df6900  [crypto_0]
100041                   D       -       0xfffffe0053df6900  [crypto_1]
100057                   D       -       0xfffffe0053df6700  [vtnet0 rxq 0]
100058                   D       -       0xfffffe0053df6600  [vtnet0 txq 0]
100059                   D       -       0xfffffe0053df6500  [vtnet0 rxq 1]
100060                   D       -       0xfffffe0053df6400  [vtnet0 txq 1]
100062                   D       vtbslp  0xfffffe0056fc0380  [virtio_balloon]
100066                   D       -       0xfffffe0053df6300  [mca taskq]
100071                   D       -       0xffffffff82c49680  [deadlkres]
100076                   D       -       0xfffffe0058390e00  [acpi_task_0]
100077                   D       -       0xfffffe0058390e00  [acpi_task_1]
100078                   D       -       0xfffffe0058390e00  [acpi_task_2]
100079                   D       -       0xfffffe0053df6800  [CAM taskq]
 1620  1611   436    65  Z                                   dhclient
db> show all locks
Process 1915 (syz-executor.2) thread 0xfffffe00a5e41c80 (101454)
exclusive sleep mutex sctp-send-tcb (tcbs) r = 0 (0xfffffe00a78283a0) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_output.c:13125
Process 0 (kernel) thread 0xfffffe0053df21e0 (100012)
exclusive sleep mutex kernel arena (kernel arena) r = 0 (0xffffffff840aa580) locked @ /syzkaller/managers/main/kernel/sys/kern/subr_vmem.c:789
exclusive sleep mutex vmem list lock (vmem list lock) r = 0 (0xffffffff83409bc0) locked @ /syzkaller/managers/main/kernel/sys/kern/subr_vmem.c:784
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4216         4338K         4244
          tcp_hpts            6         3201K            6
         sysctloid        34320         2027K        34387
             vtbuf           24         1968K           46
              kobj          326         1304K          486
               pcb          510         1079K         2941
            newblk           22         1030K         3583
          vfscache            3         1025K            3
          filedesc           86          682K         1929
          inodedep           27          522K         1036
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          208          426K         2040
              vmem            3          274K            5
         sctp_stro          182          213K          632
            acpica         1674          184K        54806
         vnet_data            1          168K            1
         sctp_atcl          423          159K         2116
           tidhash            3          141K            3
            linker          357          140K          397
           pagedep           25          134K          947
        tfo_ccache            1          128K            1
            DEVFS1          107          107K          124
               sem            4          106K            4
               bus          986           80K         3469
          mtx_pool            2           72K            2
               BPF           38           71K           38
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          510           64K          510
           kdtrace          280           52K         3395
              umtx          396           50K          396
              temp           35           33K         2354
         hostcache            1           32K            1
               shm            1           32K           11
            DEVFS3          126           32K          136
               msg            4           30K            4
        gtaskqueue           18           26K           18
         sctp_atky          605           25K         2823
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
            ifaddr           69           20K           71
         ufs_mount            5           17K            6
              proc            3           17K            3
          routetbl          132           17K          421
               tty           16           16K           16
           ithread           99           16K           99
           lltable           46           15K           76
            bus-sc           33           14K         1684
            crypto           38           14K           87
            KTRACE          100           13K          100
             ifnet            7           13K            7
       ether_multi          152           13K          162
              ksem           31           12K           31
              kenv           95           12K           95
      eventhandler          133           12K          133
         CAM queue            5           11K         1528
              rman           84           10K          425
              GEOM           60           10K          489
         in6_multi           65            9K           65
         bmsafemap            3            9K          980
            DEVFSP          135            9K          210
            kqueue           98            9K         1934
              UART           12            9K           12
           devstat            4            9K            4
         sctp_timw           32            8K           32
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          236            8K          294
         sctp_athm          423            7K         2179
              cred           25            7K          226
         taskqueue           60            7K           60
             xform           93            7K          260
            sglist            5            7K            5
           CAM DEV            3            6K          510
           pwddesc           95            6K         1916
            plimit           23            6K          411
          sctp_map          364            6K         1262
       ufs_dirhash           24            5K           24
               UMA          270            5K          270
          pf_ifnet           10            5K           33
            dirrem           17            5K          924
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
           session           32            4K           46
             evdev            4            4K            4
          kcovinfo           64            4K           68
           acpisem           28            4K           28
             hhook           15            4K           17
       fpukern_ctx            3            3K            3
             lockf           28            3K           47
             selfd           45            3K        41274
          terminal           11            3K           11
         proc-args           50            3K          646
         newdirblk           20            3K          916
           uidinfo            3            3K            8
           tcp_fsb           17            3K           60
        local_apic            1            2K            1
           io_apic            1            2K            1
         ipsec-saq            2            2K            2
            select           16            2K           60
            ip6ndp           12            2K           13
            Unitno           29            2K           69
          sctp_ifa           13            2K           14
           CAM XPT           22            2K          543
          in_multi            6            2K            8
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
       inpcbpolicy           33            2K          559
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K          102
      NFSD session            1            1K            1
        CAM periph            4            1K          271
          sctp_ifn            6            1K           14
             ipsec            3            1K            3
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
           pf_osfp            6            1K            6
               osd           27            1K          211
 encap_export_host           12            1K           12
             mkdir            4            1K         1832
            diradd            4            1K          961
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8329     977     1067679       0     254   38117376        0
           tcp_log    416       0   10710       48899       0     254    4455360        0
              mbuf    256   10274     151     1706287       0     254    2668800        0
              pbuf   2624       0     957           0       0       2    2511168        0
        RADIX NODE    144   15529    1574       96054       0      62    2462832        0
          BUF TRIE    144     354   11406        2714       0      62    1693440        0
        malloc-384    384    4251       9        4281       0      30    1635840        0
        malloc-128    128   11347      61       11503       0     126    1460224        0
      mbuf_cluster   2048     675       1         675       0     254    1384448        0
       malloc-4096   4096     327       3         536       0       2    1351680        0
       UMA Slabs 0    112   10797       0       10797       0     126    1209264        0
         vmem btag     56   18481      70       18481       0     254    1038856        0
      malloc-16384  16384      43       7         963       0       1     819200        0
       tcp_bbr_map    128    1855    3446       40546       0     126     678528        0
         FFS inode   1160     548      19        1436       0       8     657720        0
       malloc-2048   2048     243      25        1353       0       8     548864        0
       malloc-4096   4096     115       6        2479       0       2     495616        0
         VM OBJECT    264    1720      80       29504       0      30     475200        0
         sctp_asoc   2288     182      13         631       0     254     446160        0
        256 Bucket   2048     190      14       15523       0       8     417792        0
            lkpimm    160       1    2324           1       0      62     372000        0
          lkpicurr    160       2    2323           2       0      62     372000        0
         MAP ENTRY     96    3450     372      104793       0     126     366912        0
            THREAD   1808     183      15        1466       0       8     357984        0
           sctp_ep   1280     241      29        1349       0     254     345600        0
         malloc-64     64    4182     417       45749       0     254     294336        0
             VNODE    448     586      62        1476       0      30     290304        0
      malloc-65536  65536       4       0           4       0       1     262144        0
    ertt_txseginfo     40    1861    4603       66042       0     254     258560        0
         malloc-16     16   14395     355       16180       0     254     236000        0
        malloc-256    256     148     767        6600       0      62     234240        0
            DEVCTL   1024      11     209         152       0       0     225280        0
           VMSPACE   2544      72      12        1906       0       4     213696        0
       malloc-1024   1024     189      19        1147       0      16     212992        0
         UMA Zones    768     242       2         242       0      16     187392        0
            socket    944     150      42        3199       0     254     181248        0
        malloc-384    384     423      47        2116       0      30     180480        0
         malloc-32     32    5363     181        5567       0     254     177408        0
       mbuf_packet    256     171     504        6150       0     254     172800        0
        malloc-128    128    1261      41       29982       0     126     166656        0
        malloc-128    128    1169      40        4162       0     126     154752        0
        sctp_raddr    736     182      27         846       0     254     153824        0
              PROC   1336      95      16        1927       0       8     148296        0
       FFS2 dinode    256     548       7        1434       0      62     142080        0
       S VFS Cache    104    1015     311        1980       0     126     137904        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2         302       0       1     131072        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2           8       0       1     131072        0
            clpbuf   2624       0      48         340       0      16     125952        0
         filedesc0   1072      95      17        1916       0       8     120064        0
       malloc-1024   1024     110       6         127       0      16     118784        0
          ksiginfo    112      93     951        4673       0     126     116928        0
        sctp_chunk    152     733      21        1107       0     254     114608        0
        128 Bucket   1024      77      34        1231       0      16     113664        0
        malloc-256    256     198     207        3571       0      62     103680        0
       malloc-2048   2048       7      43        3752       0       8     102400        0
      malloc-16384  16384       4       2         179       0       1      98304        0
          UMA Kegs    384     227       6         227       0      30      89472        0
        malloc-384    384      26     204        1043       0      30      88320        0
        malloc-256    256     307      38        1702       0      62      88320        0
        malloc-128    128     301     319        1341       0     126      79360        0
       malloc-8192   8192       5       4         134       0       1      73728        0
             g_bio    408       0     170        9417       0      30      69360        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-32768  32768       0       2         130       0       1      65536        0
      malloc-32768  32768       2       0           2       0       1      65536        0
       malloc-2048   2048       4      28         511       0       8      65536        0
         64 Bucket    512      94      18        4365       0      30      57344        0
       malloc-4096   4096      12       1          23       0       2      53248        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-8192   8192       6       0           6       0       1      49152        0
       malloc-8192   8192       4       2          15       0       1      49152        0
        malloc-256    256     150      30         205       0      62      46080        0
         32 Bucket    256      53     127        6898       0      62      46080        0
         malloc-64     64     608      85       18897       0     254      44352        0
        malloc-256    256     113      52        1053       0      62      42240        0
       malloc-8192   8192       5       0           5       0       1      40960        0
            pcpu-8      8    4691     429        5183       0     254      40960        0
             Files     80     420      80       11009       0     126      40000        0
             tcpcb   1080      23      12         200       0     254      37800        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36       18310       0      16      36864        0
       malloc-4096   4096       9       0           9       0       2      36864        0
         malloc-64     64     478      89         690       0     254      36288        0
      malloc-32768  32768       0       1           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
           pcpu-64     64     487      25         487       0     254      32768        0
         TURNSTILE    136     199      32         199       0      62      31416        0
        malloc-384    384      75       5         132       0      30      30720        0
       malloc-2048   2048      12       2         203       0       8      28672        0
       malloc-1024   1024      13      15        1409       0      16      28672        0
             KNOTE    160      28     147       46446       0      62      28000        0
         tcp_inpcb    496      23      33         200       0     254      27776        0
              pipe    744      22      13         387       0      16      26040        0
       malloc-8192   8192       2       1           4       0       1      24576        0
         malloc-64     64     277     101        4012       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
          8 Bucket     80      46     254        1386       0     126      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
       tcp_bbr_pcb    832       1      26         100       0      16      22464        0
      tcp_rack_pcb    832      17      10          60       0      16      22464        0
       malloc-4096   4096       3       2        1103       0       2      20480        0
       malloc-4096   4096       2       3          16       0       2      20480        0
       malloc-2048   2048       2       8          75       0       8      20480        0
       malloc-2048   2048       5       5         174       0       8      20480        0
       malloc-1024   1024      17       3          17       0      16      20480        0
               PWD     32      53     577        1005       0     254      20160        0
         malloc-64     64     260      55        1802       0     254      20160        0
        malloc-128    128     102      53        1023       0     126      19840        0
        SLEEPQUEUE     88     199      25         199       0     126      19712        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-256    256      39      36         242       0      62      19200        0
        malloc-256    256      45      30        1050       0      62      19200        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       2       2          85       0       2      16384        0
       malloc-1024   1024      11       5          11       0      16      16384        0
        malloc-512    512      17      15         215       0      30      16384        0
         malloc-64     64     157      95         163       0     254      16128        0
         malloc-32     32     346     158        6265       0     254      16128        0
         malloc-32     32     448      56        2479       0     254      16128        0
      vtnet_tx_hdr     24       0     668      554034       0     254      16032        0
     udplite_inpcb    496       0      32         138       0     254      15872        0
        malloc-384    384      34       6          36       0      30      15360        0
        malloc-384    384      36       4          36       0      30      15360        0
        malloc-256    256      34      26         952       0      62      15360        0
       malloc-1024   1024       8       4           9       0      16      12288        0
        malloc-512    512      10      14         201       0      30      12288        0
        sctp_laddr     48     164      88         403       0     254      12096        0
      tcp_rack_map    112      51      57         163       0     126      12096        0
         malloc-64     64     142      47         217       0     254      12096        0
         16 Bucket    144      48      36         467       0      62      12096        0
         malloc-16     16     346     404         601       0     254      12000        0
         malloc-16     16     448     302        2251       0     254      12000        0
         udp_inpcb    496       6      18         198       0     254      11904        0
        malloc-128    128      24      69         308       0     126      11904        0
              kenv    258      15      30        1039       0      30      11610        0
     routing nhops    256      27      18          34       0      62      11520        0
             unpcb    256      17      28        1256       0     254      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-2048   2048       2       2           2       0       8       8192        0
       malloc-1024   1024       2       6          14       0      16       8192        0
       malloc-1024   1024       1       7          34       0      16       8192        0
        malloc-512    512       3      13         103       0      30       8192        0
        malloc-512    512      10       6          10       0      30       8192        0
           pf tags    104       0      78          14       0     126       8112        0
           rtentry    176      30      16          34       0      62       8096        0
              PGRP     88      32      60          46       0     126       8096        0
          rl_entry     40      58     144          58       0     254       8080        0
sctp_stream_msg_out    112      50      22         230       0     254       8064        0
             udpcb     32       6     246         336       0     254       8064        0
              ertt     72      23      89         200       0     126       8064        0
         malloc-64     64      12     114         106       0     254       8064        0
         malloc-32     32     138     114         189       0     254       8064        0
         malloc-32     32     160      92         271       0     254       8064        0
         malloc-32     32      23     229          75       0     254       8064        0
         malloc-32     32      38     214         837       0     254       8064        0
          4 Bucket     48       7     161          85       0     254       8064        0
          2 Bucket     32      54     198         722       0     254       8064        0
         malloc-16     16      25     475         215       0     254       8000        0
         malloc-16     16      16     484          19       0     254       8000        0
         malloc-16     16     187     313        1417       0     254       8000        0
         malloc-16     16      29     471       26295       0     254       8000        0
             ripcb    496       4      12          23       0     254       7936        0
        malloc-128    128      25      37         124       0     126       7936        0
        malloc-128    128      27      35          82       0     126       7936        0
        sctp_readq    152       0      52          61       0     254       7904        0
           cryptop    280       0      28          11       0      30       7840        0
        malloc-384    384       1      19         349       0      30       7680        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       7      55          55       0     126       6448        0
         domainset     40       0     126          37       0     254       5040        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-2048   2048       1       1           1       0       8       4096        0
        malloc-512    512       1       7           2       0      30       4096        0
        malloc-512    512       4       4           4       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
          sackhole     32       0     126           3       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       9      13           9       0      62       3872        0
        malloc-384    384       1       9           2       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    304       0       0           0       0     254          0        0
          pf mtags     48       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
          tcpreass     48       0       0           0       0     254          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
             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
        TMPFS node    224       0       0           0       0      62          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
           NCLNODE    584       0       0           0       0      16          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
  linux_dma_object     24       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-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
        malloc-512    512       0       0           0       0      30          0        0
         malloc-32     32       0       0           0       0     254          0        0
         malloc-16     16       0       0           0       0     254          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (326):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2021/07/10 04:53 freebsd-src 105b68b42dd1 8f5a7b8c console log report panic: ASan: Invalid access, 8-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/13 13:46 freebsd-src d4da692862f1 3fd2ea69 console log report panic: ASan: Invalid access, 8-byte read in sctp_ss_default_add
ci-freebsd-main 2021/09/08 04:06 freebsd-src 686aa9287c6b 064c9eb7 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-main 2021/09/04 16:20 freebsd-src 88a3af4da1aa d236a457 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-main 2021/09/03 22:54 freebsd-src a0c64a443e4c d236a457 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-main 2021/09/02 09:14 freebsd-src 7b529268a54a 7eb7e152 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-main 2021/08/31 19:00 freebsd-src 4a36122b1db1 7eb7e152 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-main 2021/08/29 13:16 freebsd-src 22f5f4a14e97 be2c130d console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-main 2021/08/28 19:10 freebsd-src 5bdf58e19609 be2c130d console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-main 2021/08/26 22:35 freebsd-src 0d28d014c855 b318694d console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-main 2021/08/26 06:29 freebsd-src 8d7cd10ba633 b599f2fc console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-main 2021/08/25 01:49 freebsd-src 71fbc6faed62 b599f2fc console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/09/18 03:57 freebsd-src 007c2463d6d0 70b76c1d console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/09/16 19:34 freebsd-src 12061d2626e0 7612dc77 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/09/02 17:40 freebsd-src 7b529268a54a d0f0970b console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/09/02 14:41 freebsd-src 7b529268a54a d0f0970b console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/09/02 12:04 freebsd-src 7b529268a54a d0f0970b console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/09/02 08:08 freebsd-src 7b529268a54a 7eb7e152 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/09/02 01:37 freebsd-src d491b42535db 7eb7e152 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/09/01 22:13 freebsd-src d491b42535db 7eb7e152 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/09/01 20:54 freebsd-src d491b42535db 7eb7e152 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/09/01 09:33 freebsd-src 9e9ba9c73de9 7eb7e152 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/09/01 06:20 freebsd-src 9e9ba9c73de9 7eb7e152 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/09/01 05:02 freebsd-src 9e9ba9c73de9 7eb7e152 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/31 20:45 freebsd-src 4a36122b1db1 7eb7e152 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/31 14:56 freebsd-src 4a36122b1db1 7eb7e152 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/31 01:06 freebsd-src d39e65b5bdc0 8f58a0ef console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/30 23:48 freebsd-src e76c0e4f4563 8f58a0ef console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/30 13:10 freebsd-src e76c0e4f4563 8f58a0ef console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/29 15:16 freebsd-src 22f5f4a14e97 be2c130d console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/29 00:29 freebsd-src 5bdf58e19609 be2c130d console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/28 22:32 freebsd-src 5bdf58e19609 be2c130d console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/28 13:19 freebsd-src 08b9cc316a31 d5a29e53 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/28 11:05 freebsd-src 08b9cc316a31 d5a29e53 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/28 07:52 freebsd-src 08b9cc316a31 d5a29e53 console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/27 23:47 freebsd-src b54eec836660 57b01c6e console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/27 20:05 freebsd-src b54eec836660 57b01c6e console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/27 14:34 freebsd-src bb958dcf3d8a b318694d console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/27 13:06 freebsd-src bb958dcf3d8a b318694d console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/27 10:21 freebsd-src bb958dcf3d8a b318694d console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/27 01:45 freebsd-src da3a09d8941d b318694d console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/26 23:52 freebsd-src da3a09d8941d b318694d console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/26 17:03 freebsd-src da3a09d8941d b599f2fc console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/26 04:17 freebsd-src 8d7cd10ba633 b599f2fc console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/26 01:46 freebsd-src 8d7cd10ba633 b599f2fc console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/25 09:54 freebsd-src e62175df4ec2 b599f2fc console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/24 22:56 freebsd-src 5c1428d2c4a6 b599f2fc console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/24 04:27 freebsd-src 159258afb50a b599f2fc console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/23 18:02 freebsd-src 72a92f91f466 b599f2fc console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
ci-freebsd-i386 2021/08/23 04:14 freebsd-src eccb516db8b7 b599f2fc console log report panic: ASan: Invalid access, NUM-byte read in sctp_ss_default_add
* Struck through repros no longer work on HEAD.