syzbot


panic: ASan: Invalid access, 1-byte write in sctp_lower_sosend

Status: closed as invalid on 2022/04/17 13:25
Reported-by: syzbot+332be6daf594c3ba7887@syzkaller.appspotmail.com
First crash: 1014d, last: 908d

Sample crash report:
panic: ASan: Invalid access, 1-byte write at 0xfffffe009f3b2c3e, UMAUseAfterFree(fd)
cpuid = 0
time = 1631170734
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe009f52bb50
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe009f52bcb0
vpanic() at vpanic+0x2c5/frame 0xfffffe009f52bd90
panic() at panic+0xb5/frame 0xfffffe009f52be50
__asan_store1_noabort() at __asan_store1_noabort+0x121/frame 0xfffffe009f52bf10
sctp_lower_sosend() at sctp_lower_sosend+0x6f83/frame 0xfffffe009f52c400
sctp_sosend() at sctp_sosend+0x716/frame 0xfffffe009f52c6a0
sosend() at sosend+0xfc/frame 0xfffffe009f52c710
kern_sendit() at kern_sendit+0x58d/frame 0xfffffe009f52c880
sendit() at sendit+0x2b0/frame 0xfffffe009f52c8d0
sys_sendto() at sys_sendto+0x182/frame 0xfffffe009f52c9f0
amd64_syscall() at amd64_syscall+0x425/frame 0xfffffe009f52cbf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe009f52cbf0
--- syscall (198, FreeBSD ELF64, nosys), rip = 0x289eea, rsp = 0x7fffdff9af08, rbp = 0x7fffdff9af70 ---
KDB: enter: panic
[ thread pid 2428 tid 106100 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28e223a(%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         0x4048fec2eb21b953
rdx         0xdffff7c000000000
rbx                          0
rsp         0xfffffe009f52bc90
rbp         0xfffffe009f52bcb0
rsi                        0x1
rdi         0xffffffff8408b740  cov_trace_pc
r8                         0x3
r9          0xfffffe009f52b7c8
r10                          0
r11         0xfffffe009e441c30
r12         0xfffffe009f348000
r13         0xfffffe009f52bd01
r14         0xffffffff82c79420  .str.18
r15         0xffffffff82c79420  .str.18
rip         0xffffffff817abe7b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28e223a(%rip)
db> show proc
Process 2428 (syz-executor.0) at 0xfffffe009ea05538:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 818 at 0xfffffe0058b55000
 ABI: FreeBSD ELF64
 flag: 0x10000080  flag2: 0
 arguments: /root/syz-executor.0
 reaper: 0xfffffe0053d58538 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe009eef3000
   (map 0xfffffe009eef3000)
   (map.pmap 0xfffffe009eef30c0)
   (pmap 0xfffffe009eef3120)
 threads: 5
100133                   RunQ                                syz-executor.0
106094                   S       connec  0xfffffe009f00949a  syz-executor.0
106095                   S       uwait   0xfffffe00588cf100  syz-executor.0
106098                   S       uwait   0xfffffe009e446780  syz-executor.0
106100                   Run     CPU 0                       syz-executor.0
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 2429   821   821     0  R       (threaded)                  syz-executor.2
100147                   RunQ                                syz-executor.2
106104                   RunQ                                syz-executor.2
 2428   818   818     0  R       (threaded)                  syz-executor.0
100133                   RunQ                                syz-executor.0
106094                   S       connec  0xfffffe009f00949a  syz-executor.0
106095                   S       uwait   0xfffffe00588cf100  syz-executor.0
106098                   S       uwait   0xfffffe009e446780  syz-executor.0
106100                   Run     CPU 0                       syz-executor.0
 2427   819   819     0  R       (threaded)                  syz-executor.3
102912                   RunQ                                syz-executor.3
106090                   S       connec  0xfffffe009f00dc1a  syz-executor.3
106091                   S       uwait   0xfffffe009ea18800  syz-executor.3
 2426   817   817     0  T       (threaded)                  syz-executor.1
105768                   s                                   syz-executor.1
106101                   RunQ                                syz-executor.1
106102                   RunQ                                syz-executor.1
106103                   RunQ                                syz-executor.1
106105                   RunQ                                syz-executor.1
 2059     1  2059    65  Ss      select  0xfffffe009e515cc0  dhclient
 1819     1  1819     0  Ss      select  0xfffffe005740b2c0  dhclient
 1814     1  1814     0  Ss      select  0xfffffe005740b1c0  dhclient
 1790     1  1790    65  Ss      select  0xfffffe009e515ac0  dhclient
 1553     1  1553     0  Ss      select  0xfffffe009ea26940  dhclient
 1549     1  1549     0  Ss      select  0xfffffe009e515c40  dhclient
 1523     1  1523    65  Ss      select  0xfffffe005740b340  dhclient
 1277     1  1277     0  Ss      select  0xfffffe005740b240  dhclient
 1273     1  1273     0  Ss      select  0xfffffe009ea267c0  dhclient
 1246     1  1246    65  Ss      select  0xfffffe009ea26740  dhclient
 1016     1  1016     0  Ss      select  0xfffffe009ea266c0  dhclient
 1010     1  1010     0  Ss      select  0xfffffe009ea268c0  dhclient
  821   815   821     0  Rs                                  syz-executor.2
  819   815   819     0  Rs                                  syz-executor.3
  818   815   818     0  Ds      proctre 0xffffffff83409a40  syz-executor.0
  817   815   817     0  Rs                                  syz-executor.1
  815   813   813     0  S       (threaded)                  syz-execprog
100093                   S       uwait   0xfffffe005876bb80  syz-execprog
100117                   S       uwait   0xfffffe009e446b00  syz-execprog
100118                   S       uwait   0xfffffe00588cf800  syz-execprog
100119                   S       uwait   0xfffffe00588cf900  syz-execprog
100120                   S       uwait   0xfffffe00588cfa00  syz-execprog
100121                   S       uwait   0xfffffe00588cfb00  syz-execprog
100122                   S       kqread  0xfffffe005887bc00  syz-execprog
100123                   S       uwait   0xfffffe00588cfd00  syz-execprog
100124                   S       uwait   0xfffffe00588cfe00  syz-execprog
100125                   S       uwait   0xfffffe009e446800  syz-execprog
100126                   S       uwait   0xfffffe005876b080  syz-execprog
  813   811   813     0  Ss      pause   0xfffffe0058b270b0  csh
  811   694   811     0  Ss      select  0xfffffe009e515b40  sshd
  760     1   760     0  Ss+     ttyin   0xfffffe0057003cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe00575f14b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00575f1cb0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00583f44b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00583f4cb0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00583f04b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00583f0cb0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe005839b4b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe005839bcb0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8405af81  cron
  694     1   694     0  Ss      select  0xfffffe005740b7c0  sshd
  507     1   507     0  Ss      select  0xfffffe0058afc1c0  syslogd
  436     1   436     0  Ss      select  0xfffffe005740bb40  devd
  435     1   435    65  Ss      select  0xfffffe0058afc340  dhclient
  350     1   350     0  Ss      select  0xfffffe005740bac0  dhclient
  347     1   347     0  Ss      select  0xfffffe005740ba40  dhclient
   23     0     0     0  DL      syncer  0xffffffff84183360  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe0058763a70  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100085                   D       qsleep  0xffffffff84181060  [bufdaemon]
100088                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100097                   D       sdflush 0xfffffe00588318e8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841b9580  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100083                   D       psleep  0xffffffff841ad0b8  [dom0]
100089                   D       launds  0xffffffff841ad0c4  [laundry: dom0]
100090                   D       umarcl  0xffffffff81eae980  [uma]
   18     0     0     0  DL      -       0xffffffff83e120a0  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff8487c580  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff84b20e20  [pf purge]
   15     0     0     0  DL      -       0xffffffff8417c280  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8417c280  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8417c280  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8417c280  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100048                   D       -       0xffffffff83c97840  [doneq0]
100049                   D       -       0xffffffff83c977c0  [async]
100082                   D       -       0xffffffff83c97640  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056abac88  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe00541b8d80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe00541b8d30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff841a7160  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100039                   D       -       0xffffffff8402e540  [g_event]
100040                   D       -       0xffffffff8402e580  [g_up]
100041                   D       -       0xffffffff8402e5c0  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100029                   D       -       0xfffffe00081f6d00  [thr_0]
100030                   D       -       0xfffffe00081f6d80  [thr_1]
100031                   D       -       0xffffffff8417d608  [alloc_0]
   12     0     0     0  WL      (threaded)                  [intr]
100011                   I                                   [swi6: task queue]
100012                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100032                   I                                   [swi1: netisr 0]
100033                   I                                   [swi3: vm]
100034                   I                                   [swi4: clock (0)]
100035                   I                                   [swi4: clock (1)]
100036                   I                                   [swi1: hpts]
100037                   I                                   [swi1: hpts]
100050                   I                                   [irq24: virtio_pci0]
100051                   I                                   [irq25: virtio_pci0]
100052                   I                                   [irq26: virtio_pci0]
100053                   I                                   [irq27: virtio_pci0]
100054                   I                                   [irq28: virtio_pci1]
100055                   I                                   [irq29: virtio_pci1]
100056                   I                                   [irq30: virtio_pci1]
100057                   I                                   [irq31: virtio_pci1]
100058                   I                                   [irq32: virtio_pci1]
100063                   I                                   [irq10: virtio_pci2]
100065                   I                                   [irq1: atkbd0]
100066                   I                                   [irq12: psm0]
100067                   I                                   [swi0: uart uart++]
100075                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0053d58538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841a8100  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8402f440  [swapper]
100005                   D       -       0xfffffe00081f8900  [softirq_0]
100006                   D       -       0xfffffe00081f8700  [softirq_1]
100007                   D       -       0xfffffe00081f8500  [if_io_tqg_0]
100008                   D       -       0xfffffe00081f8300  [if_io_tqg_1]
100009                   D       -       0xfffffe00081f8100  [if_config_tqg_0]
100010                   D       -       0xfffffe0053df4e00  [deferred_unmount ta]
100013                   D       -       0xfffffe0053df4800  [thread taskq]
100015                   D       -       0xfffffe0053df4400  [linuxkpi_irq_wq]
100016                   D       -       0xfffffe0053df4200  [kqueue_ctx taskq]
100017                   D       -       0xfffffe0053df4000  [pci_hp taskq]
100018                   D       -       0xfffffe0053dfed00  [aiod_kick taskq]
100019                   D       -       0xfffffe0053dfeb00  [inm_free taskq]
100020                   D       -       0xfffffe0053dfe900  [in6m_free taskq]
100021                   D       -       0xfffffe0053dfe700  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0053dfe700  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0053dfe700  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0053dfe700  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0053dfe200  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0053dfe200  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0053dfe200  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0053dfe200  [linuxkpi_long_wq_3]
100038                   D       -       0xfffffe0053e08200  [firmware taskq]
100042                   D       -       0xfffffe005418fc00  [crypto_0]
100043                   D       -       0xfffffe005418fc00  [crypto_1]
100059                   D       -       0xfffffe0056eb6b00  [vtnet0 rxq 0]
100060                   D       -       0xfffffe0056eb6a00  [vtnet0 txq 0]
100061                   D       -       0xfffffe0056eb6900  [vtnet0 rxq 1]
100062                   D       -       0xfffffe0056eb6800  [vtnet0 txq 1]
100064                   D       vtbslp  0xfffffe0056ee3400  [virtio_balloon]
100068                   D       -       0xfffffe0057016800  [mca taskq]
100073                   D       -       0xffffffff82c803a0  [deadlkres]
100077                   D       -       0xfffffe0057401a00  [acpi_task_0]
100078                   D       -       0xfffffe0057401a00  [acpi_task_1]
100079                   D       -       0xfffffe0057401a00  [acpi_task_2]
100081                   D       -       0xfffffe005418f400  [CAM taskq]
db> show all locks
Process 2428 (syz-executor.0) thread 0xfffffe009f348000 (106100)
exclusive sleep mutex sctp-send-tcb (tcbs) r = 0 (0xfffffe009f3f4c90) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctp_output.c:13143
Process 2426 (syz-executor.1) thread 0xfffffe009f2e2ac0 (106101)
exclusive rw tcpinp (tcpinp) r = 0 (0xfffffe009ef839d0) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_usrreq.c:1018
exclusive sx so_snd_sx (so_snd_sx) r = 0 (0xfffffe009f0228c0) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_socket.c:4140
Process 817 (syz-executor.1) thread 0xfffffe009e441e40 (100127)
exclusive sx proctree (proctree) r = 0 (0xffffffff83409a40) locked @ /syzkaller/managers/main/kernel/sys/kern/kern_exit.c:1280
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4217         4339K         4245
         sctp_stro           64         4166K         3084
          tcp_hpts            6         3201K            6
         sysctloid        34389         2031K        34460
             vtbuf           24         1968K           46
              kobj          326         1304K          485
            newblk            9         1026K         2027
          vfscache            3         1025K            3
               pcb          171          695K        13926
          inodedep           16          518K         1508
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          142          282K         2509
            acpica         1674          184K        55623
         vnet_data            1          168K            1
              vmem            3          146K            4
           tidhash            3          141K            3
            linker          355          140K          383
          filedesc           18          137K         2840
           pagedep            9          130K         1428
        tfo_ccache            1          128K            1
            DEVFS1          108          108K          125
               sem            4          106K            4
               BPF           46           88K           46
               bus          986           80K         3488
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          509           64K          509
         sctp_atcl          136           51K         8634
              umtx          374           47K          374
           kdtrace          233           47K         8536
              temp           35           33K         2439
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          127           32K          137
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
            ifaddr           70           20K           72
        DEVFS_RULE           56           20K           56
         ufs_mount            4           17K            5
              proc            3           17K            3
         sctp_timw           64           16K           64
               tty           16           16K           16
          routetbl          126           16K          403
           ithread           99           16K           99
            bus-sc           34           15K         1693
            KTRACE          100           13K          100
             ifnet            7           13K            7
       ether_multi          152           13K          162
           lltable           39           12K           43
              kenv           95           12K           95
      eventhandler          133           12K          133
         CAM queue            5           11K         1528
              GEOM           61           10K          490
              rman           84           10K          425
         in6_multi           65            9K           65
         sctp_atky          200            9K        11720
         bmsafemap            2            9K         1474
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K            1
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          295
         taskqueue           63            7K           63
              cred           26            7K          377
            kqueue           65            7K         2436
            sglist            5            7K            5
           CAM DEV            3            6K          510
            plimit           24            6K          591
       ufs_dirhash           24            5K           24
               UMA          270            5K          270
           session           35            5K           62
          pf_ifnet           10            5K           19
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
           pwddesc           63            4K         2430
           acpisem           28            4K           28
             selfd           55            4K        12134
             lockf           32            4K           75
             hhook           15            4K           17
         proc-args           52            3K          730
          terminal           11            3K           11
            select           19            3K           59
           uidinfo            3            3K           20
         sctp_athm          136            3K         9001
          sctp_map          128            2K         5438
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
            ip6ndp           12            2K           14
            dirrem            7            2K         1419
            Unitno           31            2K           47
          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
          freework            5            2K         1415
         sctp_stri            2            1K          734
            DEVFSP           16            1K           21
           softdep            1            1K            1
             mkdir            8            1K         2810
          freeblks            4            1K         1414
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K          162
      NFSD session            1            1K            1
          freefile            7            1K         1411
        CAM periph            4            1K          271
             ipsec            3            1K            3
          sctp_ifn            6            1K           14
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
            crypto            4            1K            4
 encap_export_host           12            1K           12
          procdesc            5            1K           18
       inpcbpolicy           18            1K         2996
         newdirblk            4            1K         1405
            diradd            4            1K         1463
              pfil            4            1K            4
              cdev            2            1K            2
               osd           11            1K         2791
    chacha20random            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            vnodes            1            1K            1
           CAM SIM            2            1K            2
              ktls            1            1K            1
            feeder            7            1K            7
           tcpfunc            3            1K            3
            soname            8            1K        17332
        loginclass            3            1K            7
            prison            6            1K            6
       lkpikmalloc            5            1K            6
        aesni_data            2            1K            2
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
             xform            2            1K           49
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          pmchooks            1            1K            1
          filecaps            5            1K          128
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           50
          acpiintr            1            1K            1
               pmc            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
               iov            1            1K        19432
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
            mqdata            0            0K            0
            tcp_do            0            0K            0
           tcp_fsb            0            0K            0
          cdg data            0            0K            0
          chd data            0            0K            0
          pf_table            0            0K            0
           pf_rule            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
           pf_temp            0            0K            0
        cubic data            0            0K            0
         htcp data            0            0K            0
        vegas data            0            0K            0
        dctcp data            0            0K            0
        sctp_mcore            0            0K            0
        sctp_socko            0            0K         2573
         sctp_iter            0            0K           10
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K            0
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ag_tgt_map_t malloc            0            0K            0
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lDevFlags * malloc            0            0K            0
tiDeviceHandle_t * malloc            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320     986       13528       0     254   38117376        0
              pbuf   2624       0     973           0       0       2    2553152        0
              mbuf    256    8703     867     4387313       0     254    2449920        0
          BUF TRIE    144     175   11585         807       0      62    1693440        0
        malloc-384    384    4184     136        5677       0      30    1658880        0
       malloc-4096   4096     391       5        2919       0       2    1622016        0
        malloc-128    128   11582      43       11677       0     126    1488000        0
       UMA Slabs 0    112   10317      12       10317       0     126    1156848        0
         vmem btag     56   16360     103       16360       0     254     921928        0
    ertt_txseginfo     40    5051   17573     4347105       0     254     904960        0
         FFS inode   1160     521      25        1932       0       8     633360        0
        RADIX NODE    144    3737     178       79012       0      62     563760        0
        256 Bucket   2048     195      31       26812       0       8     462848        0
      malloc-65536  65536       6       0           6       0       1     393216        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
         VM OBJECT    264    1220     100       41082       0      30     348480        0
            THREAD   1808     169      18        6105       0       8     338096        0
         malloc-64     64    4429     107        9373       0     254     290304        0
             VNODE    448     556      74        1969       0      30     282240        0
           sctp_ep   1272      70     125        5548       0     254     248040        0
        malloc-256    256     397     533       10758       0      62     238080        0
         malloc-16     16   14353     147       20951       0     254     232000        0
            socket    960      51     185        9848       0     254     226560        0
            DEVCTL   1024       0     220         154       0       0     225280        0
       malloc-2048   2048      78      26        5556       0       8     212992        0
         sctp_asoc   2288      64      26        2719       0     254     205920        0
      malloc-65536  65536       1       2         167       0       1     196608        0
      malloc-65536  65536       1       2         137       0       1     196608        0
      malloc-16384  16384       8       4        1417       0       1     196608        0
         UMA Zones    768     242       2         242       0      16     187392        0
      mbuf_cluster   2048      90       0          90       0     254     184320        0
         malloc-32     32    5598      72        6389       0     254     181440        0
         MAP ENTRY     96    1415     307       87618       0     126     165312        0
        malloc-128    128    1209      62       28773       0     126     162688        0
        malloc-128    128    1108      39        5556       0     126     146816        0
       malloc-1024   1024     133       7         150       0      16     143360        0
       FFS2 dinode    256     521      19        1932       0      62     138240        0
       S VFS Cache    104    1025     301        2466       0     126     137904        0
           VMSPACE   2544      40      11        2408       0       4     129744        0
       tcp_bbr_map    128     393     568      316656       0     126     123008        0
          ksiginfo    112      63     981         193       0     126     116928        0
              PROC   1336      62      16        2429       0       8     104208        0
      malloc-32768  32768       1       2         131       0       1      98304        0
        malloc-384    384     162      78        8664       0      30      92160        0
         filedesc0   1072      63      21        2430       0       8      90048        0
          UMA Kegs    384     227       6         227       0      30      89472        0
       malloc-4096   4096      21       0          21       0       2      86016        0
       malloc-1024   1024      63      21        2720       0      16      86016        0
        128 Bucket   1024      50      33        1948       0      16      84992        0
            clpbuf   2624       0      32          20       0      16      83968        0
       malloc-8192   8192       9       1         110       0       1      81920        0
             tcpcb   1080       7      63        2780       0     254      75600        0
       malloc-8192   8192       8       1          10       0       1      73728        0
             g_bio    408       0     180        6514       0      30      73440        0
        malloc-256    256      46     239        1499       0      62      72960        0
        sctp_raddr    736      64      35        2719       0     254      72864        0
       malloc-2048   2048      12      22         590       0       8      69632        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       0       1           8       0       1      65536        0
       malloc-4096   4096      14       2          27       0       2      65536        0
        malloc-256    256     127     128        8778       0      62      65280        0
        malloc-256    256      53     187        3065       0      62      61440        0
       malloc-8192   8192       4       3          32       0       1      57344        0
         64 Bucket    512      74      30        2805       0      30      53248        0
      malloc-16384  16384       3       0           3       0       1      49152        0
      malloc-16384  16384       2       1          17       0       1      49152        0
      malloc-16384  16384       1       2         161       0       1      49152        0
       malloc-2048   2048       2      22         575       0       8      49152        0
         32 Bucket    256      57     123        6054       0      62      46080        0
       malloc-1024   1024      10      34        1841       0      16      45056        0
         malloc-64     64     517     176        1648       0     254      44352        0
        malloc-128    128      40     301        1599       0     126      43648        0
            pcpu-8      8    4714     406        4870       0     254      40960        0
       tcp_bbr_pcb    832       4      41        2670       0      16      37440        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36       24133       0      16      36864        0
       malloc-4096   4096       8       1          10       0       2      36864        0
        malloc-128    128      61     218         323       0     126      35712        0
        malloc-384    384      82       8         139       0      30      34560        0
        malloc-256    256     117      18         727       0      62      34560        0
            da_ccb    544       0      63        1743       0      16      34272        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
       malloc-4096   4096       4       4           8       0       2      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
         malloc-64     64     106     398        3022       0     254      32256        0
             Files     80     179     221       18510       0     126      32000        0
       malloc-4096   4096       3       4        2273       0       2      28672        0
         TURNSTILE    136     188      22         188       0      62      28560        0
         tcp_inpcb    496       7      49        2780       0     254      27776        0
        malloc-384    384      57      13          59       0      30      26880        0
         malloc-64     64     227     151        3014       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
       mbuf_packet    256      21      69        7768       0     254      23040        0
              pipe    744      23       7         416       0      16      22320        0
               PWD     32      22     608        1525       0     254      20160        0
         16 Bucket    144      53      87         382       0      62      20160        0
        malloc-128    128      90      65        1594       0     126      19840        0
        SLEEPQUEUE     88     188      36         188       0     126      19712        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-256    256      60      15         433       0      62      19200        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-2048   2048       2       6          26       0       8      16384        0
       malloc-1024   1024       8       8          12       0      16      16384        0
         malloc-64     64     125     127        3522       0     254      16128        0
         malloc-32     32      89     415        8794       0     254      16128        0
      vtnet_tx_hdr     24       2     666     4351427       0     254      16032        0
         udp_inpcb    496       6      26         205       0     254      15872        0
        malloc-128    128      57      67        1678       0     126      15872        0
        sctp_chunk    152      66      38         839       0     254      15808        0
        malloc-384    384      22      18         362       0      30      15360        0
       malloc-2048   2048       3       3         194       0       8      12288        0
       malloc-1024   1024       8       4         186       0      16      12288        0
       malloc-1024   1024       7       5           7       0      16      12288        0
        malloc-512    512       2      22         734       0      30      12288        0
         malloc-64     64      58     131         475       0     254      12096        0
         malloc-64     64     100      89       28457       0     254      12096        0
         malloc-32     32     169     209        8343       0     254      12096        0
         malloc-32     32      91     287        8258       0     254      12096        0
          8 Bucket     80      46     104        1695       0     126      12000        0
              kenv    258      15      30        1046       0      30      11610        0
     routing nhops    256      27      18          34       0      62      11520        0
             unpcb    256      20      25        1266       0     254      11520        0
        malloc-256    256      25      20         184       0      62      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       0       2           7       0       2       8192        0
       malloc-2048   2048       3       1           3       0       8       8192        0
       malloc-2048   2048       3       1           3       0       8       8192        0
       malloc-2048   2048       2       2           4       0       8       8192        0
       malloc-1024   1024       2       6          15       0      16       8192        0
        malloc-512    512      12       4          12       0      30       8192        0
        malloc-512    512       5      11         224       0      30       8192        0
        malloc-512    512       8       8           8       0      30       8192        0
           rtentry    176      30      16          34       0      62       8096        0
              PGRP     88      35      57          62       0     126       8096        0
          rl_entry     40      49     153          49       0     254       8080        0
sctp_stream_msg_out    112       1      71         471       0     254       8064        0
        sctp_laddr     48       0     168          12       0     254       8064        0
             udpcb     32       6     246         205       0     254       8064        0
              ertt     72       7     105        2780       0     126       8064        0
         malloc-64     64     110      16         146       0     254       8064        0
         malloc-32     32     126     126         338       0     254       8064        0
         malloc-32     32      57     195        2805       0     254       8064        0
         malloc-32     32      54     198         256       0     254       8064        0
         malloc-32     32      17     235          32       0     254       8064        0
          4 Bucket     48       7     161          84       0     254       8064        0
          2 Bucket     32      55     197         667       0     254       8064        0
             KNOTE    160      26      24        9750       0      62       8000        0
         malloc-16     16      25     475         143       0     254       8000        0
         malloc-16     16      60     440        5976       0     254       8000        0
         malloc-16     16     153     347       11809       0     254       8000        0
         malloc-16     16      39     461         178       0     254       8000        0
         malloc-16     16     290     210       25555       0     254       8000        0
         malloc-16     16       4     496        2579       0     254       8000        0
             ripcb    496       5      11          11       0     254       7936        0
        malloc-128    128      40      22          89       0     126       7936        0
        sctp_readq    152       1      51         364       0     254       7904        0
        malloc-256    256      13      17         525       0      62       7680        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       8      54           8       0     126       6448        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-4096   4096       0       1           1       0       2       4096        0
       malloc-1024   1024       1       3           1       0      16       4096        0
        malloc-512    512       0       8           1       0      30       4096        0
        malloc-512    512       0       8         132       0      30       4096        0
        malloc-512    512       5       3           5       0      30       4096        0
        malloc-512    512       0       8           1       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           5       0     254       4032        0
         malloc-16     16       0     250           7       0     254       4000        0
       UMA Slabs 1    176       9      13           9       0      62       3872        0
        malloc-384    384       0      10           1       0      30       3840        0
        malloc-384    384       2       8           2       0      30       3840        0
        malloc-384    384       1       9           1       0      30       3840        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      12      27          14       0       0       3744        0
              vmem   1856       1       1           1       0       8       3712        0
           SMR CPU     32       3      60           3       0     254       2016        0
        SMR SHARED     24       3      60           3       0     254       1512        0
       FFS1 dinode    128       0       0           0       0     126          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    312       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
      tcp_rack_pcb    832       0       0           0       0      16          0        0
      tcp_rack_map    112       0       0           0       0     126          0        0
     udplite_inpcb    496       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
           tcp_log    416       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
             tcptw     88       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
            itimer    352       0       0           0       0      30          0        0
            AIOLIO    272       0       0           0       0      30          0        0
             AIOCB    552       0       0           0       0      16          0        0
              AIOP     32       0       0           0       0     254          0        0
               AIO    208       0       0           0       0      62          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
        TMPFS node    224       0       0           0       0      62          0        0
           NCLNODE    592       0       0           0       0      16          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
           cryptop    280       0       0           0       0      30          0        0
  linux_dma_object     24       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
         domainset     40       0       0           0       0     254          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (332):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/09/09 09:00 freebsd-src 103b207536f9 e2776ee4 console log report syz ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/08/12 20:42 freebsd-src c5bf58add0d5 3fd2ea69 console log report ci-freebsd-main panic: ASan: Invalid access, 1-byte write in sctp_lower_sosend
2021/07/10 07:56 freebsd-src 105b68b42dd1 8f5a7b8c console log report ci-freebsd-main panic: ASan: Invalid access, 1-byte write in sctp_lower_sosend
2021/10/23 04:42 freebsd-src 7b1e19ad78c6 282f03fb console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/10/21 00:19 freebsd-src f83288645cd9 f111d03b console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/20 08:59 freebsd-src 9ac518adf03e 3d9c9a2a console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/19 12:19 freebsd-src d7770a5495b1 70b76c1d console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/14 09:19 freebsd-src bcf5c7a8b1dc 58d09404 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/13 18:27 freebsd-src 45feade38ec3 58d09404 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/10 22:15 freebsd-src 141fe2dceeae 3ce60af8 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/10 09:40 freebsd-src 35aa1d6e4542 5ae8508a console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/10 03:40 freebsd-src 35aa1d6e4542 e2776ee4 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/09 16:27 freebsd-src 395db99f32bc e2776ee4 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/09 01:30 freebsd-src 103b207536f9 e2776ee4 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/09 00:07 freebsd-src 103b207536f9 e2776ee4 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/05 18:03 freebsd-src bb61ccd530b7 d236a457 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/03 11:44 freebsd-src a0c64a443e4c d236a457 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/02 23:04 freebsd-src cc2d08d3880c f62a5829 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/02 15:10 freebsd-src 7b529268a54a d0f0970b console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/02 12:38 freebsd-src 7b529268a54a d0f0970b console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/02 11:12 freebsd-src 7b529268a54a d0f0970b console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/02 07:38 freebsd-src 7b529268a54a 7eb7e152 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/01 22:23 freebsd-src d491b42535db 7eb7e152 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/08/31 17:39 freebsd-src 4a36122b1db1 7eb7e152 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/08/31 13:37 freebsd-src 4a36122b1db1 8f58a0ef console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/08/30 12:53 freebsd-src e76c0e4f4563 8f58a0ef console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/17 14:39 freebsd-src ac8af1938085 70b76c1d console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/15 04:39 freebsd-src e6c19aa94da4 07e953c1 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/14 16:44 freebsd-src e6c19aa94da4 07e953c1 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/13 09:13 freebsd-src 6fa041d7f125 3ce60af8 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/12 20:11 freebsd-src 4181fa2a209e 3ce60af8 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/12 18:35 freebsd-src 4181fa2a209e 3ce60af8 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/12 03:52 freebsd-src ae87a08c410d 3ce60af8 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/12 02:22 freebsd-src ae87a08c410d 3ce60af8 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/10 23:59 freebsd-src 141fe2dceeae 3ce60af8 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/08 13:03 freebsd-src 4ccbbe5f0689 e2776ee4 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/07 19:22 freebsd-src 94d9439b6be6 6ca60148 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/07 13:17 freebsd-src 94d9439b6be6 6ca60148 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/06 08:27 freebsd-src bd11e253a9a4 d236a457 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/04 03:15 freebsd-src cd85b97e0e70 d236a457 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/04 01:03 freebsd-src cd85b97e0e70 d236a457 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/03 20:24 freebsd-src a0c64a443e4c d236a457 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/03 17:59 freebsd-src a0c64a443e4c d236a457 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/09/01 05:06 freebsd-src 9e9ba9c73de9 7eb7e152 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/08/31 14:42 freebsd-src 4a36122b1db1 7eb7e152 console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/08/31 04:21 freebsd-src d39e65b5bdc0 8f58a0ef console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
2021/08/30 16:55 freebsd-src e76c0e4f4563 8f58a0ef console log report ci-freebsd-i386 panic: ASan: Invalid access, NUM-byte write in sctp_lower_sosend
* Struck through repros no longer work on HEAD.