syzbot


panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr

Status: fixed on 2022/05/27 06:58
Reported-by: syzbot+ac9f9c77cccb3c9267e9@syzkaller.appspotmail.com
Fix commit: 75e7e3ce34d9 unix: fix incorrect assertion in 4682ac697ce
First crash: 257d, last: 256d

Sample crash report:
panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usrreq.c:2018
cpuid = 1
time = 1653622715
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe00541eb430
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe00541eb590
vpanic() at vpanic+0x2b8/frame 0xfffffe00541eb670
panic() at panic+0xb5/frame 0xfffffe00541eb730
unp_externalize() at unp_externalize+0x693/frame 0xfffffe00541eb7d0
soreceive_generic() at soreceive_generic+0xf24/frame 0xfffffe00541eb9c0
soreceive() at soreceive+0xf6/frame 0xfffffe00541eba30
kern_recvit() at kern_recvit+0x54e/frame 0xfffffe00541ebbf0
sys_recvfrom() at sys_recvfrom+0x1f9/frame 0xfffffe00541ebd30
ia32_syscall() at ia32_syscall+0x41a/frame 0xfffffe00541ebf30
int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0xfbffcf78
KDB: enter: panic
[ thread pid 50778 tid 303677 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x275b7aa(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                           0
rax                       0x12
rcx         0xfffffe00a3e54000
rdx                    0x3ffff
rbx                          0
rsp         0xfffffe00541eb570
rbp         0xfffffe00541eb590
rsi                    0x40001
rdi         0xffffffff8172b348  printf+0x158
r8                           0
r9                  0xffffffff
r10                          0
r11         0xfffffe00a62afa70
r12         0xfffffe00a62af560
r13         0xfffffe00541eb501
r14         0xffffffff82b577a0  .str.26
r15         0xffffffff82b577a0  .str.26
rip         0xffffffff8171ae6b  kdb_enter+0x6b
rflags                0x200046  kernload+0x46
kdb_enter+0x6b: movq    $0,0x275b7aa(%rip)
db> show proc
Process 50778 (syz-executor.3) at 0xfffffe00a62c9000:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 780 at 0xfffffe0058c9d000
 ABI: FreeBSD ELF32
 flag: 0x10000080  flag2: 0
 arguments: /root/syz-executor.3 exec
 reaper: 0xfffffe0053de1000 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe009ef143f0
   (map 0xfffffe009ef143f0)
   (map.pmap 0xfffffe009ef144b0)
   (pmap 0xfffffe009ef14518)
 threads: 2
301898                   RunQ                                syz-executor.3
303677                   Run     CPU 1                       syz-executor.3
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
50783   776   776     0  R       (threaded)                  syz-executor.0
301087                   Run     CPU 0                       syz-executor.0
303681                   RunQ                                syz-executor.0
50782   778   778     0  R                                   syz-executor.2
50779   777   777     0  R       (threaded)                  syz-executor.1
301524                   RunQ                                syz-executor.1
303678                   S       sbwait  0xfffffe00a60a2e1c  syz-executor.1
50778   780   780     0  R       (threaded)                  syz-executor.3
301898                   RunQ                                syz-executor.3
303677                   Run     CPU 1                       syz-executor.3
36652     1 36652    65  Ss      select  0xfffffe00a5cb2040  dhclient
27497     1 27497     0  Ss      select  0xfffffe00a5d890c0  dhclient
27486     1 27486     0  Ss      select  0xfffffe00a600f2c0  dhclient
27431     1 27431    65  Ss      select  0xfffffe00a5b9f4c0  dhclient
19075     1 19075     0  Ss      select  0xfffffe00a616c3c0  dhclient
19067     1 19067     0  Ss      select  0xfffffe00a5bb6040  dhclient
19018     1 19018    65  Ss      select  0xfffffe00a6149740  dhclient
10254     1 10254     0  Ss      select  0xfffffe00a5bb60c0  dhclient
10244     1 10244     0  Ss      select  0xfffffe00a5bb6840  dhclient
10188     1 10188    65  Ss      select  0xfffffe00a5d3a440  dhclient
 2849     1  2849     0  Ss      select  0xfffffe00a5d3cac0  dhclient
 2838     1  2838     0  Ss      select  0xfffffe00a5d3cd40  dhclient
  780   774   780     0  Rs                                  syz-executor.3
  778   774   778     0  Ss      nanslp  0xffffffff83e43c81  syz-executor.2
  777   774   777     0  Ss      nanslp  0xffffffff83e43c81  syz-executor.1
  776   774   776     0  Rs                                  syz-executor.0
  774   772   772     0  S       (threaded)                  syz-fuzzer
100095                   S       uwait   0xfffffe005788ae80  syz-fuzzer
100117                   S       uwait   0xfffffe005788b400  syz-fuzzer
100118                   S       uwait   0xfffffe005788b500  syz-fuzzer
100119                   S       uwait   0xfffffe0057328c00  syz-fuzzer
100120                   S       uwait   0xfffffe0058b2b400  syz-fuzzer
100121                   S       uwait   0xfffffe0058b2b300  syz-fuzzer
100122                   S       uwait   0xfffffe0058b2b200  syz-fuzzer
100123                   S       uwait   0xfffffe0057328b00  syz-fuzzer
100124                   S       kqread  0xfffffe0058b5fe00  syz-fuzzer
  772   770   772     0  Ss      pause   0xfffffe0058c9e5f8  csh
  770   688   770     0  Ss      select  0xfffffe0056f6ac40  sshd
  754     1   754     0  Ss+     ttyin   0xfffffe00574764b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00579c2cb0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe0057472cb0  getty
  751     1   751     0  Ss+     ttyin   0xfffffe00579c30b0  getty
  750     1   750     0  Ss+     ttyin   0xfffffe00579c34b0  getty
  749     1   749     0  Ss+     ttyin   0xfffffe00579c38b0  getty
  748     1   748     0  Ss+     ttyin   0xfffffe00579c3cb0  getty
  747     1   747     0  Ss+     ttyin   0xfffffe00579c40b0  getty
  746     1   746     0  Ss+     ttyin   0xfffffe00579c44b0  getty
  692     1   692     0  Ss      nanslp  0xffffffff83e43c80  cron
  688     1   688     0  Ss      select  0xfffffe0056f6acc0  sshd
  501     1   501     0  Ss      select  0xfffffe0056f6ad40  syslogd
  430     1   430     0  Ss      select  0xfffffe0056f6af40  devd
  429     1   429    65  Ss      select  0xfffffe0056f6b4c0  dhclient
  344     1   344     0  Ss      select  0xfffffe0056f6aec0  dhclient
  341     1   341     0  Ss      select  0xfffffe0056f6b7c0  dhclient
   17     0     0     0  DL      vlruwt  0xfffffe0056fa0548  [vnlru]
   16     0     0     0  DL      syncer  0xffffffff83f694e0  [syncer]
   15     0     0     0  DL      (threaded)                  [bufdaemon]
100079                   D       psleep  0xffffffff83f67ae0  [bufdaemon]
100082                   D       -       0xffffffff83211f80  [bufspacedaemon-0]
100094                   D       sdflush 0xfffffe00574728e8  [/ worker]
    9     0     0     0  DL      psleep  0xffffffff83f9b5c0  [vmdaemon]
    8     0     0     0  DL      (threaded)                  [pagedaemon]
100077                   D       psleep  0xffffffff83f8f478  [dom0]
100083                   D       launds  0xffffffff83f8f484  [laundry: dom0]
100084                   D       umarcl  0xffffffff81e492f0  [uma]
    7     0     0     0  DL      -       0xffffffff83c002a8  [rand_harvestq]
    6     0     0     0  DL      pftm    0xffffffff8456a550  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff84b8b4a0  [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100044                   D       -       0xffffffff83aa3240  [doneq0]
100045                   D       -       0xffffffff83aa31c0  [async]
100076                   D       -       0xffffffff83aa3040  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0053fd7488  [sequencer 00]
    3     0     0     0  DL      (threaded)                  [crypto]
100040                   D       crypto_ 0xffffffff83f8aca0  [crypto]
100041                   D       crypto_ 0xfffffe0053ecd830  [crypto returns 0]
100042                   D       crypto_ 0xfffffe0053ecd880  [crypto returns 1]
   13     0     0     0  DL      (threaded)                  [geom]
100035                   D       -       0xffffffff83e19280  [g_event]
100036                   D       -       0xffffffff83e192a0  [g_up]
100037                   D       -       0xffffffff83e192c0  [g_down]
    2     0     0     0  WL      (threaded)                  [clock]
100029                   I                                   [clock (0)]
100030                   I                                   [clock (1)]
   12     0     0     0  WL      (threaded)                  [intr]
100015                   I                                   [swi5: fast taskq]
100018                   I                                   [swi6: task queue]
100019                   I                                   [swi6: Giant taskq]
100031                   I                                   [swi1: netisr 0]
100032                   I                                   [swi1: hpts]
100033                   I                                   [swi1: hpts]
100046                   I                                   [irq24: virtio_pci0]
100047                   I                                   [irq25: virtio_pci0]
100048                   I                                   [irq26: virtio_pci0]
100049                   I                                   [irq27: virtio_pci0]
100050                   I                                   [irq28: virtio_pci1]
100051                   I                                   [irq29: virtio_pci1]
100052                   I                                   [irq30: virtio_pci1]
100053                   I                                   [irq31: virtio_pci1]
100054                   I                                   [irq32: virtio_pci1]
100059                   I                                   [irq33: virtio_pci2]
100060                   I                                   [irq34: virtio_pci2]
100061                   I                                   [irq35: virtio_pci2]
100063                   I                                   [irq1: atkbd0]
100064                   I                                   [irq12: psm0]
100065                   I                                   [swi0: uart uart++]
100069                   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    0xfffffe0053de1000  [init]
   10     0     0     0  DL      audit_w 0xffffffff83f8b780  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff83e19c80  [swapper]
100005                   D       -       0xfffffe0053e84100  [if_config_tqg_0]
100006                   D       -       0xfffffe0053e84000  [softirq_0]
100007                   D       -       0xfffffe0053e83e00  [softirq_1]
100008                   D       -       0xfffffe0053e83d00  [if_io_tqg_0]
100009                   D       -       0xfffffe0053e83c00  [if_io_tqg_1]
100010                   D       -       0xfffffe000795a100  [inm_free taskq]
100011                   D       -       0xfffffe000795a000  [linuxkpi_irq_wq]
100012                   D       -       0xfffffe0007959e00  [in6m_free taskq]
100013                   D       -       0xfffffe0007959d00  [deferred_unmount ta]
100014                   D       -       0xfffffe0007959c00  [thread taskq]
100016                   D       -       0xfffffe0007959a00  [kqueue_ctx taskq]
100017                   D       -       0xfffffe0007959900  [pci_hp taskq]
100020                   D       -       0xfffffe0007959600  [aiod_kick taskq]
100021                   D       -       0xfffffe0007959500  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0007959500  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0007959500  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0007959500  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0007959400  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0007959400  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0007959400  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0007959400  [linuxkpi_long_wq_3]
100034                   D       -       0xfffffe0007959300  [firmware taskq]
100038                   D       -       0xfffffe0007959200  [crypto_0]
100039                   D       -       0xfffffe0007959200  [crypto_1]
100055                   D       -       0xfffffe0007959000  [vtnet0 rxq 0]
100056                   D       -       0xfffffe0007958e00  [vtnet0 txq 0]
100057                   D       -       0xfffffe0007958d00  [vtnet0 rxq 1]
100058                   D       -       0xfffffe0007958c00  [vtnet0 txq 1]
100062                   D       vtbslp  0xfffffe0056f6c000  [virtio_balloon]
100066                   D       -       0xffffffff82b5d620  [deadlkres]
100070                   D       -       0xfffffe000795a200  [mca taskq]
100071                   D       -       0xfffffe00585ef600  [acpi_task_0]
100072                   D       -       0xfffffe00585ef600  [acpi_task_1]
100073                   D       -       0xfffffe00585ef600  [acpi_task_2]
100075                   D       -       0xfffffe0007959100  [CAM taskq]
db> show all locks
Process 50779 (syz-executor.1) thread 0xfffffe00a5a38ac0 (303678)
exclusive sx so_snd_sx (so_snd_sx) r = 0 (0xfffffe00a60a2c80) locked @ /syzkaller/managers/i386/kernel/sys/kern/uipc_socket.c:4165
Process 50778 (syz-executor.3) thread 0xfffffe00a62af560 (303677)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xfffffe0058dc5cc0) locked @ /syzkaller/managers/i386/kernel/sys/kern/uipc_socket.c:4169
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
          tcp_hpts            7         4801K            7
            devbuf         4217         4323K         4245
         sysctloid        35322         2081K        35393
             vtbuf           24         1968K           46
              kobj          328         1312K          490
            newblk            9         1026K       178433
          vfscache            3         1025K            3
          inodedep         1302         1000K       186251
               pcb           23          537K        43185
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
            dirrem         1293          324K       186620
              vmem            3          274K            5
           subproc          139          259K       150812
            acpica         1674          184K        57552
         vnet_data            1          168K            1
          freefile         1285          161K       182605
           tidhash            3          141K            3
          filedesc           18          137K       299417
            linker          358          134K          386
           pagedep            9          130K       177937
        tfo_ccache            1          128K            1
            DEVFS1          109          109K          126
               sem            4          106K            4
               BPF           46           88K           46
               bus          995           81K         5208
          mtx_pool            2           72K            2
          syncache            1           68K            1
            module          514           65K          514
          acpitask            1           64K            1
       ddb_capture            1           64K            1
              umtx          396           50K          396
           kdtrace          217           44K       354412
         sctp_timw          169           43K          169
              temp           34           33K        30557
            DEVFS3          128           32K          138
         hostcache            1           32K            1
               shm            1           32K         3905
               msg            4           30K            4
        gtaskqueue           18           26K           18
              ksem           43           25K         4355
           filemon            3           24K        14944
            kbdmux            6           22K            6
            ifaddr           70           20K           72
        DEVFS_RULE           56           20K           56
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
          routetbl          130           16K          410
           ithread           97           16K           97
            bus-sc           34           15K         1681
              cred           54           14K        89423
            KTRACE          100           13K          100
             ifnet            7           13K            7
       ether_multi          152           13K          954
           lltable           39           12K          183
      eventhandler          136           12K          136
              kenv           95           12K           95
              rman           88           11K          431
              GEOM           61           11K          490
         CAM queue            5           11K         1528
         in6_multi           65            9K           65
         bmsafemap            2            9K       183586
              UART           12            9K           12
           devstat            4            9K            4
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          296
         taskqueue           63            7K           63
            sglist            5            7K            5
           CAM DEV            3            6K          510
            plimit           24            6K          514
            kqueue           59            6K       150736
       ufs_dirhash           24            5K           24
            DEVFSP           71            5K        25866
               UMA          272            5K          272
           session           35            5K        11582
          pf_ifnet           10            5K           19
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
           pwddesc           57            4K       150730
           acpisem           28            4K           28
             selfd           55            4K      1978287
             lockf           32            4K           66
         proc-args           92            4K       152190
             hhook           15            4K           17
          kcovinfo           52            4K           52
          terminal           11            3K           11
            select           19            3K           56
           uidinfo            3            3K         4622
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
            ip6ndp           12            2K           14
            Unitno           31            2K         3511
          sctp_ifa           13            2K           14
           CAM XPT           22            2K          543
               msi           12            2K           12
          in_multi            6            2K          323
          freework            5            2K       177962
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
             clone            9            2K            9
               tun            7            2K            7
           softdep            1            1K            1
             mkdir            8            1K       355832
          freeblks            4            1K       177961
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K          112
      NFSD session            1            1K            1
        CAM periph            4            1K          271
          sctp_ifn            6            1K           14
             ipsec            3            1K            3
               mld            6            1K            6
              igmp            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
            crypto            4            1K            4
 encap_export_host           12            1K           12
          procdesc            5            1K           18
         newdirblk            4            1K       177916
            diradd            4            1K       186662
       inpcbpolicy           16            1K        82861
              pfil            4            1K            4
              cdev            2            1K            2
               osd            9            1K        39163
    chacha20random            1            1K            1
            CC Mem            5            1K        40681
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            vnodes            1            1K            1
           CAM SIM            2            1K            2
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K            6
            prison            6            1K            6
       lkpikmalloc            5            1K            6
        aesni_data            2            1K            2
         cryptodev            2            1K        11463
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
               iov            1            1K        44589
          pmchooks            1            1K            1
            soname            4            1K       105840
          filecaps            5            1K          448
          sctp_vrf            1            1K            1
        ip_msource            1            1K           39
              vnet            1            1K            1
           entropy            2            1K           48
               pmc            1            1K            1
          acpiintr            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
        sctp_mcore            0            0K            0
        sctp_socko            0            0K         5740
         sctp_iter            0            0K           11
         sctp_mvrf            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_athm            0            0K        26260
         sctp_atky            0            0K        31338
         sctp_atcl            0            0K        26260
         sctp_a_it            0            0K           11
         sctp_aadr            0            0K            0
         sctp_stro            0            0K         5078
         sctp_stri            0            0K            0
          sctp_map            0            0K        10156
            ipcomp            0            0K            0
               esp            0            0K            0
                ah            0            0K            0
            mqdata            0            0K            0
            tcp_do            0            0K            0
           tcp_fsb            0            0K          891
          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
   NFSCL layrecall            0            0K            0
     NFSCL session            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
     NFSCL sockreq            0            0K            0
     NFSCL devinfo            0            0K            0
     NFSCL flayout            0            0K            0
               ixl            0            0K            0
      NFSCL layout            0            0K            0
     NFSD rollback            0            0K            0
      NFSCL diroff            0            0K            0
       NEWdirectio            0            0K            0
        NEWNFSnode            0            0K            0
         NFSCL lck            0            0K            0
      NFSCL lckown            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
              iavf            0            0K            0
             axgbe            0            0K            0
      NFSCL client            0            0K            0
       NFSCL deleg            0            0K            0
        NFSCL open            0            0K            0
       NFSCL owner            0            0K            0
            NFS fh            0            0K            0
           NFS req            0            0K            0
     NFSD usrgroup            0            0K            0
       NFSD string            0            0K            0
       NFSD V4lock            0            0K            0
          xen_intr            0            0K            0
      NFSD V4state            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            bounce            0            0K            0
            busdma            0            0K            0
            qpidrv            0            0K            0
     NFSD srvcache            0            0K            0
       msdosfs_fat            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8324    1074      169831       0     254   38494208        0
         FFS inode   1160     527    3827      183156       0       9    5050640        0
        malloc-384    384    1315    7985      186459       0      30    3571200        0
         sctp_asoc   2256       0    1525        5078       0     254    3440400        0
              mbuf    256    8625    4338      695550       0     254    3318528        0
       malloc-2048   2048       4    1484       21377       0       8    3047424        0
              pbuf   2624       0     973           0       0       2    2553152        0
           sctp_ep   1208       0    2040       21182       0     254    2464320        0
             VNODE    448     567    3879      183198       0      30    1991808        0
        malloc-256    256    1368    5277      187723       0      62    1701120        0
          BUF TRIE    144     194   11594        4501       0      62    1697472        0
        malloc-384    384    4169      31        4509       0      30    1612800        0
         VM OBJECT    264    2183    3847     2201140       0      30    1591920        0
      mbuf_cluster   2048     762       0         762       0     254    1560576        0
        malloc-128    128   11626     371      202921       0     126    1535616        0
       malloc-1024   1024       7    1433        5085       0      16    1474560        0
       UMA Slabs 0    112   12111      15       12111       0     126    1358112        0
       malloc-4096   4096     328       2         495       0       2    1351680        0
         vmem btag     56   23862      81       23862       0     254    1340808        0
       malloc-8192   8192       9     137       15079       0       1    1196032        0
        malloc-256    256     268    4322      959012       0      62    1175040        0
       FFS2 dinode    256     527    3883      183156       0      62    1128960        0
        sctp_raddr    736       0    1529        5078       0     254    1125344        0
        malloc-384    384       2    2908       26262       0      30    1117440        0
        RADIX NODE    144    6659     448     4023399       0      65    1023408        0
             tcpcb   1104       5     758       39152       0     254     842352        0
        malloc-128    128    1641    4683      362055       0     126     809472        0
            socket    960      45     719      160253       0     254     733440        0
        256 Bucket   2048     282      22        3300       0       8     622592        0
        malloc-256    256     191    1549       21412       0      62     445440        0
        sctp_chunk    152       0    2808        2518       0     254     426816        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
            THREAD   1808     159      39      203681       0       8     357984        0
       malloc-4096   4096      79       5      150930       0       2     344064        0
      malloc-65536  65536       4       1         140       0       1     327680        0
         malloc-64     64    4130     469      155478       0     254     294336        0
         MAP ENTRY     96    2576     448     4537657       0     126     290304        0
        sctp_laddr     48       0    5880        8391       0     254     282240        0
      malloc-16384  16384      12       4      149870       0       2     262144        0
         malloc-16     16   14655     345       14729       0     254     240000        0
            DEVCTL   1024       0     220         154       0       0     225280        0
         32 Bucket    256     703     167       36043       0      62     222720        0
           tcp_log    416       0     513          47       0     254     213408        0
         64 Bucket    512     312      80       51646       0      30     200704        0
             unpcb    256      24     741       55969       0     254     195840        0
       mbuf_packet    256      26     736      163686       0     254     195072        0
         UMA Zones    768     244       0         244       0      16     187392        0
         malloc-32     32    5361     309        5782       0     254     181440        0
     FPU_save_area    832     161      55      320809       0      16     179712        0
        malloc-128    128    1220     175       38644       0     126     178560        0
         malloc-64     64     522    2061       46662       0     254     165312        0
       malloc-1024   1024     135      25        3695       0      16     163840        0
             g_bio    408       0     390       31859       0      30     159120        0
       S VFS Cache    104    1025     496      210286       0     126     158184        0
        128 Bucket   1024     116      31       32751       0      16     150528        0
           VMSPACE   2552      40      14      150719       0       4     137808        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2         474       0       1     131072        0
          ksiginfo    112      71     973      117426       0     126     116928        0
         malloc-32     32     269    3385       30436       0     254     116928        0
              PROC   1352      56      25      150729       0       8     109512        0
        malloc-128    128     526     249       13054       0     126      99200        0
        malloc-256    256     208     167      203761       0      62      96000        0
         udp_inpcb    424       6     210       19733       0      30      91584        0
         tcp_inpcb    424       5     211       39152       0      30      91584        0
             ripcb    424       5     211       23952       0      30      91584        0
         filedesc0   1072      57      27      150730       0       8      90048        0
          UMA Kegs    384     230       3         230       0      30      89472        0
sctp_stream_msg_out    112       0     792        3138       0     254      88704        0
         malloc-64     64     586     737       26941       0     254      84672        0
            clpbuf   2624       0      32          18       0      16      83968        0
        malloc-128    128     444     207        7603       0     126      83328        0
       malloc-2048   2048       5      35        5029       0       8      81920        0
        malloc-256    256      83     232       90069       0      62      80640        0
         16 Bucket    144     398     106        2628       0      62      72576        0
          8 Bucket     80     226     674       27088       0     126      72000        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-65536  65536       1       0           1       0       1      65536        0
      malloc-32768  32768       0       2         120       0       1      65536        0
       malloc-4096   4096      13       3          27       0       2      65536        0
             Files     80     227     573      476985       0     126      64000        0
            da_ccb    544       0     112        8065       0      16      60928        0
         malloc-16     16      36    3464       91855       0     254      56000        0
         malloc-64     64     180     639     2129278       0     254      52416        0
         malloc-64     64      87     732      162551       0     254      52416        0
         malloc-16     16      27    3223       17298       0     254      52000        0
        malloc-128    128     165     238         670       0     126      51584        0
        malloc-128    128     188     215         678       0     126      51584        0
        malloc-128    128      39     364      355991       0     126      51584        0
           DIRHASH   1024      35      13          35       0      16      49152        0
             NAMEI   1024       0      48     1157222       0      16      49152        0
       malloc-8192   8192       6       0           6       0       1      49152        0
       malloc-2048   2048      10      14          12       0       8      49152        0
       malloc-1024   1024       6      42         531       0      16      49152        0
      tcp_rack_pcb    896       0      54         891       0      16      48384        0
          syncache    168       0     264           4       0     254      44352        0
       malloc-8192   8192       4       1           6       0       1      40960        0
       malloc-8192   8192       5       0           5       0       1      40960        0
       malloc-4096   4096       2       8      182818       0       2      40960        0
            pcpu-8      8    4704     416        4860       0     254      40960        0
              pipe    744      23      27         412       0      16      37200        0
         malloc-64     64       0     567       19932       0     254      36288        0
         malloc-64     64     200     367         229       0     254      36288        0
         malloc-64     64      18     549        2831       0     254      36288        0
     routing nhops    256      27     108          34       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-384    384      42      48         186       0      30      34560        0
        malloc-384    384      82       8        5925       0      30      34560        0
        malloc-256    256       2     133        1867       0      62      34560        0
        malloc-256    256      46      89          50       0      62      34560        0
        malloc-256    256      18     117        4517       0      62      34560        0
         TURNSTILE    136     199      53         199       0      62      34272        0
        SLEEPQUEUE     88     199     185         199       0     126      33792        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       0       2           4       0       1      32768        0
      malloc-16384  16384       2       0          17       0       1      32768        0
       malloc-4096   4096       5       3         634       0       2      32768        0
       malloc-2048   2048       3      13          32       0       8      32768        0
       malloc-2048   2048       3      13          65       0       8      32768        0
       malloc-2048   2048       7       9          77       0       8      32768        0
       malloc-1024   1024       0      32         116       0      16      32768        0
       malloc-1024   1024      27       5          43       0      16      32768        0
       malloc-1024   1024       6      26        2101       0      16      32768        0
        malloc-512    512      11      53         121       0      30      32768        0
        malloc-512    512       3      61         170       0      30      32768        0
        malloc-512    512      10      54        2283       0      30      32768        0
           pcpu-64     64     493      19         493       0     254      32768        0
    ertt_txseginfo     40       1     807      191616       0     254      32320        0
             KNOTE    160      28     172     1044394       0      62      32000        0
            ttyinq    160     135      65         300       0      62      32000        0
      tcp_rack_map    120       0     264         145       0     126      31680        0
   tcp_log_id_node    120       0     264          91       0     126      31680        0
       tcp_bbr_pcb    832       0      36        1078       0      16      29952        0
            cpuset    104       7     272       32350       0     126      29016        0
             udpcb     32       6     876       19757       0     254      28224        0
   udp_inpcb ports     32       3     879        2212       0     254      28224        0
   tcp_inpcb ports     32       3     879        2368       0     254      28224        0
              ertt     72       5     387       39152       0     126      28224        0
               PWD     32      22     860      149801       0     254      28224        0
         malloc-32     32     150     732       87261       0     254      28224        0
         malloc-32     32      86     796      154030       0     254      28224        0
          4 Bucket     48       7     581        3082       0     254      28224        0
          2 Bucket     32     124     758       18815       0     254      28224        0
     udplite_inpcb    424       0      63          24       0      30      26712        0
       malloc-8192   8192       1       2          19       0       1      24576        0
       malloc-4096   4096       6       0           6       0       2      24576        0
           rtentry    176      30     108          34       0      62      24288        0
 tcp_log_id_bucket    176       0     138          10       0      62      24288        0
              PGRP     88      35     241       11582       0     126      24288        0
          rl_entry     40      96     510          96       0     254      24240        0
        malloc-384    384       0      60          21       0      30      23040        0
        malloc-384    384      43      17          45       0      30      23040        0
         domainset     40       0     567       30611       0     254      22680        0
         hostcache     64       1     314           1       0     254      20160        0
         malloc-32     32       5     625       12798       0     254      20160        0
         malloc-32     32     127     503         129       0     254      20160        0
         malloc-32     32      56     574         408       0     254      20160        0
         malloc-32     32      23     607        1709       0     254      20160        0
       Mountpoints   2752       2       5           2       0       4      19264        0
 epoch_record pcpu    256       4      60           4       0      62      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       0       4          36       0       2      16384        0
       malloc-4096   4096       3       1           3       0       2      16384        0
       malloc-2048   2048       1       7           1       0       8      16384        0
       malloc-2048   2048       2       6           2       0       8      16384        0
       malloc-1024   1024       4      12           4       0      16      16384        0
       malloc-1024   1024       1      15           1       0      16      16384        0
        malloc-512    512       0      32           1       0      30      16384        0
        malloc-512    512       2      30           2       0      30      16384        0
           SMR CPU     32       7     504           7       0     254      16352        0
      vtnet_tx_hdr     24       0     668      196042       0     254      16032        0
         malloc-16     16     482     518        3454       0     254      16000        0
         malloc-16     16      41     959      151897       0     254      16000        0
              kenv    258      15      45        1053       0      30      15480        0
            mqnode    416       3      33           3       0      30      14976        0
              vmem   1856       1       7           1       0       8      14848        0
        SMR SHARED     24       7     504           7       0     254      12264        0
         malloc-16     16       9     741      109723       0     254      12000        0
         malloc-16     16      22     728         135       0     254      12000        0
         malloc-16     16      20     730         375       0     254      12000        0
       L VFS Cache    320       0      36           1       0      30      11520        0
        malloc-384    384       1      29           1       0      30      11520        0
tfo_ccache_entries     80       1     127           1       0     126      10240        0
       malloc-8192   8192       1       0           1       0       1       8192        0
           pcpu-16     16       7     249           7       0     254       4096        0
       UMA Slabs 1    176      10      12          10       0      62       3872        0
        KMAP ENTRY     96      12      27          14       0       0       3744        0
            pcpu-4      4       1     511           1       0     254       2048        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
   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     254          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    184       0       0           0       0      62          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
               ipq     56       0       0           0       0     254          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
             tcptw     72       0       0           0       0     254          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
udplite_inpcb ports     32       0       0           0       0     254          0        0
       ripcb ports     32       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    608       0       0           0       0      16          0        0
     LTS VFS Cache    360       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     32       0       0           0       0     254          0        0
  linux_dma_pctrie    144       0       0           0       0      62          0        0
   IOMMU_MAP_ENTRY    120       0       0           0       0     126          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-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-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
           pcpu-32     32       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 (18):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-i386 2022/05/27 03:38 freebsd-src 442bf90e5284 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 06:49 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 06:49 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 06:44 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 06:41 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 06:33 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 06:06 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 05:57 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 05:42 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 05:38 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 05:36 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 05:19 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 04:51 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 04:46 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 04:31 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 04:26 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 04:10 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
ci-freebsd-i386 2022/05/26 03:59 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/i386/kernel/sys/kern/uipc_usr
* Struck through repros no longer work on HEAD.