syzbot


panic: m_copydata, offset > size of mbuf chain

Status: closed as invalid on 2022/04/17 16:59
Reported-by: syzbot+1004dcabcd24a2f7cff6@syzkaller.appspotmail.com
First crash: 995d, last: 992d

Sample crash report:
panic: m_copydata, offset > size of mbuf chain
cpuid = 1
time = 1631034326
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe0053b459b0
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe0053b45b10
vpanic() at vpanic+0x2c5/frame 0xfffffe0053b45bf0
panic() at panic+0xb5/frame 0xfffffe0053b45cb0
m_copydata() at m_copydata+0x12f/frame 0xfffffe0053b45e10
rack_output() at rack_output+0x978c/frame 0xfffffe0053b465d0
tcp_hptsi() at tcp_hptsi+0x227d/frame 0xfffffe0053b46950
tcp_hpts_thread() at tcp_hpts_thread+0x2fd/frame 0xfffffe0053b46a50
ithread_loop() at ithread_loop+0x4f1/frame 0xfffffe0053b46bb0
fork_exit() at fork_exit+0xd0/frame 0xfffffe0053b46bf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0053b46bf0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100037 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28e230a(%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         0x8d0ffc22e6750cf2
rdx         0xdffff7c000000000
rbx                          0
rsp         0xfffffe0053b45af0
rbp         0xfffffe0053b45b10
rsi                        0x1
rdi         0xffffffff8408b740  cov_trace_pc
r8                         0x3
r9          0xfffffe0053b45628
r10                          0
r11                          0
r12         0xfffffe0053e24c80
r13         0xfffffe0053b45b01
r14         0xffffffff82c773c0  .str.18
r15         0xffffffff82c773c0  .str.18
rip         0xffffffff817abdab  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28e230a(%rip)
db> show proc
Process 12 (intr) at 0xfffffe0053df0a70:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff8402f440
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff8402f440 reapsubtree: 12
 sigparent: 20
 vmspace: 0xffffffff840303c0
   (map 0xffffffff840303c0)
   (map.pmap 0xffffffff84030480)
   (pmap 0xffffffff840304e0)
 threads: 23
100012                   I                                   [swi6: task queue]
100013                   I                                   [swi6: Giant taskq]
100015                   I                                   [swi5: fast taskq]
100032                   I                                   [swi4: clock (0)]
100033                   I                                   [swi4: clock (1)]
100034                   I                                   [swi1: netisr 0]
100035                   I                                   [swi3: vm]
100036                   I                                   [swi1: hpts]
100037                   Run     CPU 1                       [swi1: hpts]
100050                   I                                   [irq24: virtio_pci0]
100051                   I                                   [irq25: virtio_pci0]
100052                   I                                   [irq26: virtio_pci0]
100053                   I                                   [irq27: virtio_pci0]
100054                   I                                   [irq28: virtio_pci1]
100055                   I                                   [irq29: virtio_pci1]
100056                   I                                   [irq30: virtio_pci1]
100057                   I                                   [irq31: virtio_pci1]
100058                   I                                   [irq32: virtio_pci1]
100063                   I                                   [irq10: virtio_pci2]
100065                   I                                   [irq1: atkbd0]
100066                   I                                   [irq12: psm0]
100067                   I                                   [swi0: uart uart++]
100075                   I                                   [swi1: pf send]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 1495   798   798     0  R       (threaded)                  syz-executor.0
101655                   RunQ                                syz-executor.0
101735                   S       connec  0xfffffe009ea32490  syz-executor.0
101739                   S       sbwait  0xfffffe009ea3268c  syz-executor.0
101743                   S       uwait   0xfffffe009ea0dc80  syz-executor.0
 1493   797   797     0  R       (threaded)                  syz-executor.3
101604                   RunQ                                syz-executor.3
101728                   S       connec  0xfffffe009ea40bf0  syz-executor.3
101729                   S       sbwait  0xfffffe009ea40dec  syz-executor.3
101730                   S       uwait   0xfffffe009ea6ac00  syz-executor.3
 1066  1060  1066     0  Ss      select  0xfffffe00574048c0  dhclient
 1063     1  1063     0  Ss      select  0xfffffe0056b8d040  dhclient
 1060  1053   436    65  S       select  0xfffffe009ea1ddc0  dhclient
 1053   436   436     0  S       wait    0xfffffe00588b5538  sh
  799   794   799     0  Ss      piperd  0xfffffe00588a88b8  syz-executor.2
  798   794   798     0  Ss      nanslp  0xffffffff8405af80  syz-executor.0
  797   794   797     0  Ss      nanslp  0xffffffff8405af80  syz-executor.3
  796   794   796     0  Rs      CPU 0                       syz-executor.1
  794   792   792     0  S       (threaded)                  syz-execprog
100102                   S       uwait   0xfffffe0056ffe400  syz-execprog
100121                   S       uwait   0xfffffe0058b3f000  syz-execprog
100122                   S       uwait   0xfffffe0058b3f100  syz-execprog
100123                   S       uwait   0xfffffe0058b3f200  syz-execprog
100124                   S       uwait   0xfffffe0058772e80  syz-execprog
100125                   S       uwait   0xfffffe0058b3f300  syz-execprog
100126                   S       uwait   0xfffffe009e4c8880  syz-execprog
100127                   S       kqread  0xfffffe005700b400  syz-execprog
100128                   S       uwait   0xfffffe005834d000  syz-execprog
100129                   S       uwait   0xfffffe009e4c8a80  syz-execprog
  792   790   792     0  Ss      pause   0xfffffe0058892b20  csh
  790   694   790     0  Ss      select  0xfffffe0056b8d2c0  sshd
  760     1   760     0  Ss+     ttyin   0xfffffe0056ff8cb0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe00583ed4b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00583f48b0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00583ed8b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00583f4cb0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00574740b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00583edcb0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00574744b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe00574748b0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8405af81  cron
  694     1   694     0  Ss      select  0xfffffe0056b8b7c0  sshd
  507     1   507     0  Ss      select  0xfffffe0056b8b840  syslogd
  436     1   436     0  Ss      wait    0xfffffe0058b67538  devd
  435     1   435    65  Ss      select  0xfffffe0056b8bd40  dhclient
  350     1   350     0  Ss      select  0xfffffe0056b8ba40  dhclient
  347     1   347     0  Ss      select  0xfffffe0057404bc0  dhclient
   23     0     0     0  DL      vlruwt  0xfffffe005876a538  [vnlru]
   22     0     0     0  DL      syncer  0xffffffff84183360  [syncer]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100085                   D       qsleep  0xffffffff84181060  [bufdaemon]
100088                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100100                   D       sdflush 0xfffffe00583f44e8  [/ 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  0xffffffff81eacb40  [uma]
   18     0     0     0  DL      -       0xffffffff83e120a0  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff84b52560  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff84d1be20  [pf purge]
   15     0     0     0  DL      -       0xffffffff8417c280  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8417c280  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8417c280  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8417c280  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100048                   D       -       0xffffffff83c97840  [doneq0]
100049                   D       -       0xffffffff83c977c0  [async]
100082                   D       -       0xffffffff83c97640  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe000791a888  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe00541b0d80  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe00541b0d30  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff841a7160  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100039                   D       -       0xffffffff8402e540  [g_event]
100040                   D       -       0xffffffff8402e580  [g_up]
100041                   D       -       0xffffffff8402e5c0  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100029                   D       -       0xfffffe00081ecb00  [thr_0]
100030                   D       -       0xfffffe00081ecb80  [thr_1]
100031                   D       -       0xffffffff8417d608  [alloc_0]
   12     0     0     0  RL      (threaded)                  [intr]
100012                   I                                   [swi6: task queue]
100013                   I                                   [swi6: Giant taskq]
100015                   I                                   [swi5: fast taskq]
100032                   I                                   [swi4: clock (0)]
100033                   I                                   [swi4: clock (1)]
100034                   I                                   [swi1: netisr 0]
100035                   I                                   [swi3: vm]
100036                   I                                   [swi1: hpts]
100037                   Run     CPU 1                       [swi1: hpts]
100050                   I                                   [irq24: virtio_pci0]
100051                   I                                   [irq25: virtio_pci0]
100052                   I                                   [irq26: virtio_pci0]
100053                   I                                   [irq27: virtio_pci0]
100054                   I                                   [irq28: virtio_pci1]
100055                   I                                   [irq29: virtio_pci1]
100056                   I                                   [irq30: virtio_pci1]
100057                   I                                   [irq31: virtio_pci1]
100058                   I                                   [irq32: virtio_pci1]
100063                   I                                   [irq10: virtio_pci2]
100065                   I                                   [irq1: atkbd0]
100066                   I                                   [irq12: psm0]
100067                   I                                   [swi0: uart uart++]
100075                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0053d52538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841a8100  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff8402f440  [swapper]
100005                   D       -       0xfffffe00081f4800  [if_config_tqg_0]
100006                   D       -       0xfffffe00081f4600  [softirq_0]
100007                   D       -       0xfffffe00081f4400  [softirq_1]
100008                   D       -       0xfffffe00081f4200  [if_io_tqg_0]
100009                   D       -       0xfffffe00081f4000  [if_io_tqg_1]
100010                   D       -       0xfffffe0053deed00  [in6m_free taskq]
100011                   D       -       0xfffffe0053deeb00  [deferred_unmount ta]
100014                   D       -       0xfffffe0053dee500  [thread taskq]
100016                   D       -       0xfffffe0053dee100  [linuxkpi_irq_wq]
100017                   D       -       0xfffffe0053df8e00  [kqueue_ctx taskq]
100018                   D       -       0xfffffe0053df8c00  [pci_hp taskq]
100019                   D       -       0xfffffe0053df8a00  [aiod_kick taskq]
100020                   D       -       0xfffffe0053df8800  [inm_free taskq]
100021                   D       -       0xfffffe0053df8600  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0053df8600  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0053df8600  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0053df8600  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0053df8100  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0053df8100  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0053df8100  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0053df8100  [linuxkpi_long_wq_3]
100038                   D       -       0xfffffe0053e00200  [firmware taskq]
100042                   D       -       0xfffffe0054188c00  [crypto_0]
100043                   D       -       0xfffffe0054188c00  [crypto_1]
100059                   D       -       0xfffffe0056eabd00  [vtnet0 rxq 0]
100060                   D       -       0xfffffe0056eabc00  [vtnet0 txq 0]
100061                   D       -       0xfffffe0056eabb00  [vtnet0 rxq 1]
100062                   D       -       0xfffffe0056eaba00  [vtnet0 txq 1]
100064                   D       vtbslp  0xfffffe0056b8be80  [virtio_balloon]
100068                   D       -       0xfffffe0056feaa00  [mca taskq]
100069                   D       -       0xffffffff82c7e341  [deadlkres]
100077                   D       -       0xfffffe00573f8a00  [acpi_task_0]
100078                   D       -       0xfffffe00573f8a00  [acpi_task_1]
100079                   D       -       0xfffffe00573f8a00  [acpi_task_2]
100081                   D       -       0xfffffe0054188500  [CAM taskq]
db> show all locks
Process 1495 (syz-executor.0) thread 0xfffffe009eacc560 (101739)
exclusive sx so_snd_sx (so_snd_sx) r = 0 (0xfffffe009ea32630) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_sockbuf.c:491
Process 1493 (syz-executor.3) thread 0xfffffe009ea45560 (101729)
exclusive sx so_snd_sx (so_snd_sx) r = 0 (0xfffffe009ea40d90) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_sockbuf.c:491
Process 796 (syz-executor.1) thread 0xfffffe009e4c4c80 (100120)
exclusive lockmgr bufwait (bufwait) r = 0 (0xfffffe000797efe8) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_bio.c:3937
exclusive lockmgr ufs (ufs) r = 0 (0xfffffe009ea633f0) locked @ /syzkaller/managers/main/kernel/sys/ufs/ffs/ffs_vfsops.c:1999
exclusive lockmgr ufs (ufs) r = 0 (0xfffffe009e9d3930) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_cache.c:4485
Process 12 (intr) thread 0xfffffe0053e24c80 (100037)
exclusive sleep mutex so_snd (so_snd) r = 0 (0xfffffe009ea2c610) locked @ /syzkaller/managers/main/kernel/sys/modules/tcp/rack/../../../netinet/tcp_stacks/rack.c:17021
exclusive rw tcpinp (tcpinp) r = 0 (0xfffffe009eb239d0) locked @ /syzkaller/managers/main/kernel/sys/netinet/tcp_hpts.c:1590
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4217         4339K         4245
          tcp_hpts            6         3201K            6
         sysctloid        34389         2031K        34460
             vtbuf           24         1968K           46
              kobj          326         1304K          485
            newblk           17         1028K         1195
          vfscache            3         1025K            3
          inodedep          122          558K          663
               pcb           35          542K         1717
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          123          239K         1571
            acpica         1674          184K        55623
         vnet_data            1          168K            1
              vmem            3          146K            4
           tidhash            3          141K            3
            linker          355          140K          383
           pagedep           14          132K          597
        tfo_ccache            1          128K            1
            DEVFS1          108          108K          125
               sem            4          106K            4
          filedesc           14          105K         1192
               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
              umtx          352           44K          352
           kdtrace          204           42K         3246
               BPF           22           36K           22
              temp           35           33K         2057
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          127           32K          137
               msg            4           30K            4
            dirrem          108           27K          593
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
            ifaddr           67           19K           69
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
          routetbl          127           16K          404
           ithread           99           16K           99
           lltable           46           15K           97
            bus-sc           34           15K         1693
          freefile          108           14K          589
            KTRACE          100           13K          100
             ifnet            7           13K            7
       ether_multi          152           13K          162
              kenv           95           12K           95
      eventhandler          133           12K          133
         CAM queue            5           11K         1528
              GEOM           61           10K          489
              rman           84           10K          425
         in6_multi           65            9K           65
         bmsafemap            2            9K          629
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K            1
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          295
         taskqueue           63            7K           63
            sglist            5            7K            5
           CAM DEV            3            6K          510
              cred           23            6K          280
            kqueue           55            6K         1507
            plimit           21            6K          426
       ufs_dirhash           24            5K           24
               UMA          270            5K          270
          pf_ifnet           10            5K           19
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
           acpisem           28            4K           28
             hhook           15            4K           17
           pwddesc           53            4K         1501
           session           25            4K           44
          terminal           11            3K           11
         proc-args           44            3K          617
           uidinfo            3            3K           11
             lockf           20            3K           36
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
             selfd           31            2K        10089
            ip6ndp           12            2K           14
             mkdir           14            2K         1164
            Unitno           31            2K           47
          sctp_ifa           13            2K           14
           CAM XPT           22            2K          543
            diradd           12            2K          628
          in_multi            6            2K            8
         newdirblk           11            2K          582
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
            select           10            2K           40
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
          freework            5            2K          589
           softdep            1            1K            1
          freeblks            4            1K          588
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           38
      NFSD session            1            1K            1
        CAM periph            4            1K          271
             ipsec            3            1K            3
          sctp_ifn            6            1K           14
         sctp_atcl            2            1K          424
               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
       inpcbpolicy           22            1K         1405
            DEVFSP           10            1K           15
            crypto            4            1K            4
 encap_export_host           12            1K           12
           tcp_fsb            4            1K          779
              pfil            4            1K            4
              cdev            2            1K            2
               osd           13            1K         1221
    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
          procdesc            2            1K           12
            soname            8            1K         6700
            feeder            7            1K            7
           tcpfunc            3            1K            3
        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
          sctp_vrf            1            1K            1
         sctp_atky            2            1K          424
              vnet            1            1K            1
           entropy            2            1K           45
          acpiintr            1            1K            1
               pmc            1            1K            1
         sctp_athm            2            1K          424
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          filecaps            2            1K           94
          p1003.1b            1            1K            1
          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
        sctp_mcore            0            0K            0
        sctp_socko            0            0K            0
         sctp_iter            0            0K           10
         sctp_mvrf            0            0K            0
         sctp_timw            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K           10
         sctp_aadr            0            0K            0
         sctp_stro            0            0K            0
         sctp_stri            0            0K            0
          sctp_map            0            0K            0
            tcp_do            0            0K            0
            mqdata            0            0K            0
         htcp data            0            0K            0
        cubic data            0            0K            0
        dctcp data            0            0K            0
          chd data            0            0K            0
        vegas data            0            0K            0
          cdg data            0            0K            0
       NEWdirectio            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8345     964       16946       0     254   38129664        0
              pbuf   2624       0     989           0       0       2    2595136        0
              mbuf    256    8730     855       22495       0     254    2453760        0
          BUF TRIE    144     176   11584         599       0      62    1693440        0
        malloc-384    384    4152       8        4152       0      30    1597440        0
        malloc-128    128   11282      33       11319       0     126    1448320        0
       malloc-4096   4096     327       2         579       0       2    1347584        0
       UMA Slabs 0    112   10143       6       10143       0     126    1136688        0
         vmem btag     56   15746      69       15746       0     254     885640        0
         FFS inode   1160     512      27        1101       0       8     625240        0
        RADIX NODE    144    3362     217       40921       0      62     515376        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
      malloc-65536  65536       5       0           5       0       1     327680        0
            THREAD   1808     150      26        1744       0       8     318208        0
       malloc-4096   4096      66       7        1527       0       2     299008        0
         VM OBJECT    264    1019     106       24211       0      30     297000        0
             VNODE    448     547      65        1138       0      30     274176        0
         malloc-64     64    3895     200        5869       0     254     262080        0
        256 Bucket   2048     112      10       10922       0       8     249856        0
         malloc-16     16   14029     221       14089       0     254     228000        0
            DEVCTL   1024      19     201         151       0       0     225280        0
      malloc-16384  16384       7       6         594       0       1     212992        0
      malloc-65536  65536       1       2          79       0       1     196608        0
      malloc-65536  65536       3       0           3       0       1     196608        0
         UMA Zones    768     242       2         242       0      16     187392        0
         malloc-32     32    5560     110        6135       0     254     181440        0
        malloc-128    128    1348      47       26340       0     126     178560        0
        malloc-256    256      62     553        1877       0      62     157440        0
       S VFS Cache    104    1057     308        1662       0     126     141960        0
       FFS2 dinode    256     512      28        1101       0      62     138240        0
         MAP ENTRY     96    1042     344       59076       0     126     133056        0
      malloc-65536  65536       0       2         136       0       1     131072        0
        malloc-256    256     169     341        1456       0      62     130560        0
         tcp_inpcb    496      25     223        1210       0     254     123008        0
       malloc-1024   1024     117       3         295       0      16     122880        0
        malloc-384    384     121     189         695       0      30     119040        0
          ksiginfo    112      52     992         478       0     126     116928        0
        malloc-256    256     232     188        1611       0      62     107520        0
           VMSPACE   2544      30      12        1479       0       4     106848        0
        malloc-128    128     767       8        4655       0     126      99200        0
              PROC   1336      52      17        1500       0       8      92184        0
          UMA Kegs    384     227       6         227       0      30      89472        0
        malloc-128    128     597      85        3003       0     126      87296        0
            socket    944      33      59        3086       0     254      86848        0
        malloc-256    256     205     110        3003       0      62      80640        0
         filedesc0   1072      53      17        1501       0       8      75040        0
       malloc-8192   8192       7       2         110       0       1      73728        0
             g_bio    408       0     180        5322       0      30      73440        0
      mbuf_cluster   2048      30       2          30       0     254      65536        0
      malloc-65536  65536       0       1           8       0       1      65536        0
      malloc-32768  32768       0       2         130       0       1      65536        0
      malloc-16384  16384       4       0           4       0       1      65536        0
             tcpcb   1080       9      47        1210       0     254      60480        0
         malloc-64     64     853      92        3981       0     254      60480        0
       malloc-8192   8192       7       0           7       0       1      57344        0
       malloc-2048   2048       4      24         556       0       8      57344        0
       malloc-2048   2048       9      19        1195       0       8      57344        0
        128 Bucket   1024      42      13         665       0      16      56320        0
       malloc-4096   4096      11       2         551       0       2      53248        0
      malloc-16384  16384       1       2         161       0       1      49152        0
         32 Bucket    256      53     127        7730       0      62      46080        0
         malloc-64     64     547     146        2464       0     254      44352        0
        malloc-128    128     116     225        1382       0     126      43648        0
        malloc-384    384      95      15         167       0      30      42240        0
            clpbuf   2624       0      16          20       0      16      41984        0
       malloc-8192   8192       5       0           5       0       1      40960        0
       malloc-4096   4096      10       0          10       0       2      40960        0
       malloc-1024   1024       4      36         536       0      16      40960        0
            pcpu-8      8    4660     460        4816       0     254      40960        0
         64 Bucket    512      76       4        1852       0      30      40960        0
        malloc-384    384      83      17          83       0      30      38400        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       1      35       16605       0      16      36864        0
            da_ccb    544       0      63        1445       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-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       1       1          16       0       1      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
       malloc-2048   2048      11       3          13       0       8      28672        0
       malloc-1024   1024      22       6        1120       0      16      28672        0
         TURNSTILE    136     177      33         177       0      62      28560        0
           sctp_ep   1280       2      19         424       0     254      26880        0
       malloc-8192   8192       0       3          28       0       1      24576        0
       malloc-4096   4096       2       4         784       0       2      24576        0
       malloc-1024   1024      18       6          22       0      16      24576        0
            ttyinq    160     135      15         300       0      62      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
      tcp_rack_pcb    832       4      23         779       0      16      22464        0
              pipe    744      20      10         371       0      16      22320        0
       malloc-2048   2048       8       2           8       0       8      20480        0
               PWD     32      17     613         681       0     254      20160        0
             Files     80     129     121       10090       0     126      20000        0
        malloc-128    128      27     128         291       0     126      19840        0
        SLEEPQUEUE     88     177      47         177       0     126      19712        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-256    256      37      38         511       0      62      19200        0
        malloc-256    256      39      36        1207       0      62      19200        0
        malloc-256    256      34      41         126       0      62      19200        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-2048   2048       1       7          25       0       8      16384        0
       malloc-1024   1024       4      12          44       0      16      16384        0
         malloc-64     64     164      88       10245       0     254      16128        0
         16 Bucket    144      49      63         316       0      62      16128        0
        malloc-128    128      89      35         613       0     126      15872        0
       malloc-4096   4096       0       3           6       0       2      12288        0
       malloc-4096   4096       3       0           4       0       2      12288        0
       malloc-2048   2048       2       4           4       0       8      12288        0
        malloc-512    512      13      11          14       0      30      12288        0
    ertt_txseginfo     40       1     302         288       0     254      12120        0
      tcp_rack_map    112      12      96        2375       0     126      12096        0
         malloc-32     32     153     225        4166       0     254      12096        0
             KNOTE    160      26      49        4107       0      62      12000        0
         malloc-16     16     499     251        1876       0     254      12000        0
          8 Bucket     80      41     109         680       0     126      12000        0
         udp_inpcb    496       6      18         187       0     254      11904        0
              kenv    258      15      30        1038       0      30      11610        0
             unpcb    256      11      34        1230       0     254      11520        0
        malloc-384    384      22       8          25       0      30      11520        0
        malloc-384    384       3      27         765       0      30      11520        0
       malloc-1024   1024       2       6           6       0      16       8192        0
       malloc-1024   1024       3       5           3       0      16       8192        0
        malloc-512    512       0      16         118       0      30       8192        0
        malloc-512    512       0      16          14       0      30       8192        0
        malloc-512    512       2      14          61       0      30       8192        0
        malloc-512    512       2      14          39       0      30       8192        0
           rtentry    176      30      16          34       0      62       8096        0
             tcptw     88       1      91           5       0     254       8096        0
              PGRP     88      25      67          44       0     126       8096        0
          rl_entry     40      44     158          44       0     254       8080        0
        sctp_laddr     48       0     168          12       0     254       8064        0
         hostcache     64       2     124           2       0     254       8064        0
             udpcb     32       6     246         187       0     254       8064        0
              ertt     72       9     103        1210       0     126       8064        0
         malloc-64     64      24     102       14759       0     254       8064        0
         malloc-64     64      30      96          62       0     254       8064        0
         malloc-64     64      26     100         377       0     254       8064        0
         malloc-64     64       2     124           2       0     254       8064        0
         malloc-32     32      48     204         704       0     254       8064        0
         malloc-32     32      32     220        1429       0     254       8064        0
         malloc-32     32     115     137        4361       0     254       8064        0
         malloc-32     32     123     129         289       0     254       8064        0
         malloc-32     32      19     233          26       0     254       8064        0
          4 Bucket     48       6     162          67       0     254       8064        0
          2 Bucket     32      53     199         592       0     254       8064        0
      vtnet_tx_hdr     24       0     334        1921       0     254       8016        0
         malloc-16     16      11     489         113       0     254       8000        0
         malloc-16     16      19     481          27       0     254       8000        0
         malloc-16     16      36     464          90       0     254       8000        0
         malloc-16     16      50     450       27158       0     254       8000        0
         malloc-16     16       0     500           6       0     254       8000        0
         malloc-16     16      14     486          14       0     254       8000        0
             ripcb    496       2      14           8       0     254       7936        0
        malloc-128    128      31      31          96       0     126       7936        0
     routing nhops    256      27       3          34       0      62       7680        0
       mbuf_packet    256       6      24         189       0     254       7680        0
        malloc-256    256      14      16         278       0      62       7680        0
     FPU_save_area    832       1       8           1       0      16       7488        0
            cpuset    104       8      54           8       0     126       6448        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-2048   2048       0       2          12       0       8       4096        0
       malloc-2048   2048       2       0           2       0       8       4096        0
       malloc-1024   1024       0       4           1       0      16       4096        0
        malloc-512    512       2       6           2       0      30       4096        0
        malloc-512    512       5       3           5       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
          syncache    168       0      24           5       0     254       4032        0
         malloc-32     32      18     108         112       0     254       4032        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       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
sctp_stream_msg_out    112       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     254          0        0
        sctp_chunk    152       0       0           0       0     254          0        0
        sctp_raddr    736       0       0           0       0     254          0        0
         sctp_asoc   2288       0       0           0       0     254          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    312       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
       tcp_bbr_pcb    832       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
     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
               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    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-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
        malloc-512    512       0       0           0       0      30          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (11):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/09/07 17:20 freebsd-src 94d9439b6be6 6ca60148 console log report syz ci-freebsd-main panic: m_copydata, offset > size of mbuf chain
2021/09/07 15:59 freebsd-src 94d9439b6be6 6ca60148 console log report syz ci-freebsd-main panic: m_copydata, offset > size of mbuf chain
2021/09/04 19:57 freebsd-src 88a3af4da1aa d236a457 console log report syz ci-freebsd-main panic: m_copydata, offset > size of mbuf chain
2021/09/04 18:22 freebsd-src 88a3af4da1aa d236a457 console log report syz ci-freebsd-main panic: m_copydata, offset > size of mbuf chain
2021/09/07 14:50 freebsd-src 94d9439b6be6 6ca60148 console log report ci-freebsd-main panic: m_copydata, offset > size of mbuf chain
2021/09/07 14:22 freebsd-src 94d9439b6be6 6ca60148 console log report ci-freebsd-main panic: m_copydata, offset > size of mbuf chain
2021/09/07 00:24 freebsd-src 936f4a42fa2a 6ca60148 console log report ci-freebsd-main panic: m_copydata, offset > size of mbuf chain
2021/09/05 18:32 freebsd-src bb61ccd530b7 d236a457 console log report ci-freebsd-main panic: m_copydata, offset > size of mbuf chain
2021/09/04 16:00 freebsd-src 88a3af4da1aa d236a457 console log report ci-freebsd-main panic: m_copydata, offset > size of mbuf chain
2021/09/04 16:00 freebsd-src 88a3af4da1aa d236a457 console log report ci-freebsd-main panic: m_copydata, offset > size of mbuf chain
2021/09/07 22:49 freebsd-src 686aa9287c6b 064c9eb7 console log report ci-freebsd-i386 panic: m_copydata, offset > size of mbuf chain
* Struck through repros no longer work on HEAD.