syzbot


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

Status: fixed on 2022/05/27 06:58
Reported-by: syzbot+c48c62e7fbd8ef327088@syzkaller.appspotmail.com
Fix commit: 75e7e3ce34d9 unix: fix incorrect assertion in 4682ac697ce
First crash: 256d, last: 256d

Sample crash report:
login: panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/main/kernel/sys/kern/uipc_usrreq.c:2018
cpuid = 0
time = 1653544927
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe00541c8430
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe00541c8590
vpanic() at vpanic+0x2b8/frame 0xfffffe00541c8670
panic() at panic+0xb5/frame 0xfffffe00541c8730
unp_externalize() at unp_externalize+0x693/frame 0xfffffe00541c87d0
soreceive_generic() at soreceive_generic+0xf24/frame 0xfffffe00541c89c0
soreceive() at soreceive+0xf6/frame 0xfffffe00541c8a30
kern_recvit() at kern_recvit+0x54e/frame 0xfffffe00541c8bf0
sys_recvmsg() at sys_recvmsg+0x1bd/frame 0xfffffe00541c8d30
amd64_syscall() at amd64_syscall+0x410/frame 0xfffffe00541c8f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00541c8f30
--- syscall (0, FreeBSD ELF64, nosys), rip = 0x2b422a, rsp = 0x82780af78, rbp = 0x82780afb0 ---
KDB: enter: panic
[ thread pid 779 tid 100113 ]
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                        0x28
rax                       0x12
rcx         0xfffffe00033eee30
rdx         0xdffff7c000000000
rbx                          0
rsp         0xfffffe00541c8570
rbp         0xfffffe00541c8590
rsi                        0x1
rdi                          0
r8                         0x3
r9                  0xffffffff
r10                          0
r11         0xfffffe0058b2aa70
r12         0xfffffe0058b2ac80
r13         0xfffffe00541c8501
r14         0xffffffff82b577a0  .str.26
r15         0xffffffff82b577a0  .str.26
rip         0xffffffff8171ae6b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x275b7aa(%rip)
db> show proc
Process 779 (syz-executor1506696) at 0xfffffe0053de1a90:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 777 at 0xfffffe009eff7548
 ABI: FreeBSD ELF64
 flag: 0x10004080  flag2: 0
 arguments: ./syz-executor1506696378
 reaper: 0xfffffe0053de1000 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe009ec59000
   (map 0xfffffe009ec59000)
   (map.pmap 0xfffffe009ec590c0)
   (pmap 0xfffffe009ec59128)
 threads: 3
100091                   Run     CPU 1                       syz-executor1506696
100113                   Run     CPU 0                       syz-executor1506696
100114                   RunQ                                syz-executor1506696
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
  779   777   777     0  R       (threaded)                  syz-executor1506696
100091                   Run     CPU 1                       syz-executor1506696
100113                   Run     CPU 0                       syz-executor1506696
100114                   RunQ                                syz-executor1506696
  777   775   777     0  Ss      pause   0xfffffe009eff75f8  csh
  775   688   775     0  Ss      select  0xfffffe0056f6ac40  sshd
  754     1   754     0  Ss+     ttyin   0xfffffe00574764b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00579c28b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe00579c2cb0  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
  744     1    18     0  S+      piperd  0xfffffe0058be9ba0  logger
  743   742    18     0  S+      nanslp  0xffffffff83e43c80  sleep
  742     1    18     0  S+      wait    0xfffffe0056f9ea90  sh
  692     1   692     0  Ss      nanslp  0xffffffff83e43c80  cron
  688     1   688     0  Ss      select  0xfffffe0056f6a9c0  sshd
  501     1   501     0  Ss      select  0xfffffe0056f6ad40  syslogd
  430     1   430     0  Ss      select  0xfffffe0056f6adc0  devd
  429     1   429    65  Ss      select  0xfffffe0056f6ae40  dhclient
  344     1   344     0  Ss      select  0xfffffe0056f6af40  dhclient
  341     1   341     0  Ss      select  0xfffffe0056f6bf40  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]
100095                   D       sdflush 0xfffffe0057472ce8  [/ 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    0xffffffff8476b550  [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       -       0xfffffe000795f100  [inm_free taskq]
100011                   D       -       0xfffffe000795f000  [linuxkpi_irq_wq]
100012                   D       -       0xfffffe000795ee00  [in6m_free taskq]
100013                   D       -       0xfffffe000795ed00  [deferred_unmount ta]
100014                   D       -       0xfffffe000795ec00  [thread taskq]
100016                   D       -       0xfffffe000795ea00  [kqueue_ctx taskq]
100017                   D       -       0xfffffe000795e900  [pci_hp taskq]
100020                   D       -       0xfffffe000795e600  [aiod_kick taskq]
100021                   D       -       0xfffffe000795e500  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe000795e500  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe000795e500  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe000795e500  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe000795e400  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe000795e400  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe000795e400  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe000795e400  [linuxkpi_long_wq_3]
100034                   D       -       0xfffffe000795e300  [firmware taskq]
100038                   D       -       0xfffffe000795e200  [crypto_0]
100039                   D       -       0xfffffe000795e200  [crypto_1]
100055                   D       -       0xfffffe000795e000  [vtnet0 rxq 0]
100056                   D       -       0xfffffe000795de00  [vtnet0 txq 0]
100057                   D       -       0xfffffe000795dd00  [vtnet0 rxq 1]
100058                   D       -       0xfffffe000795dc00  [vtnet0 txq 1]
100062                   D       vtbslp  0xfffffe0056f6c000  [virtio_balloon]
100066                   D       -       0xffffffff82b5d621  [deadlkres]
100070                   D       -       0xfffffe000795f200  [mca taskq]
100071                   D       -       0xfffffe00585ef600  [acpi_task_0]
100072                   D       -       0xfffffe00585ef600  [acpi_task_1]
100073                   D       -       0xfffffe00585ef600  [acpi_task_2]
100075                   D       -       0xfffffe000795e100  [CAM taskq]
db> show all locks
Process 779 (syz-executor1506696) thread 0xfffffe0058cb9c80 (100091)
exclusive sleep mutex umtxql (umtxql) r = 0 (0xffffffff83e6bd20) locked @ /syzkaller/managers/main/kernel/sys/kern/kern_umtx.c:1281
Process 779 (syz-executor1506696) thread 0xfffffe0058b2ac80 (100113)
exclusive sx so_rcv_sx (so_rcv_sx) r = 0 (0xfffffe0058ca7cc0) locked @ /syzkaller/managers/main/kernel/sys/kern/uipc_socket.c:4165
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
          tcp_hpts            7         4801K            7
            devbuf         4217         4323K         4242
         sysctloid        35322         2081K        35393
             vtbuf           24         1968K           46
              kobj          328         1312K          490
            newblk          579         1169K          591
          vfscache            3         1025K            3
               pcb           19          537K           38
          inodedep           50          531K           71
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
            acpica         1674          184K        57552
           subproc           98          182K          838
         vnet_data            1          168K            1
              vmem            3          146K            4
           tidhash            3          141K            3
            linker          358          134K          386
           pagedep           14          132K           18
        tfo_ccache            1          128K            1
               sem            4          106K            4
            DEVFS1          105          105K          114
               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
              temp           17           33K         1606
         hostcache            1           32K            1
               shm            1           32K            1
           kdtrace          155           32K          895
            DEVFS3          124           31K          134
              umtx          242           31K          242
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
               BPF           10           18K           10
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           97           16K           97
            bus-sc           34           15K         1681
            KTRACE          100           13K          100
      eventhandler          136           12K          136
              kenv           95           12K           95
            ifaddr           30           12K           32
              rman           88           11K          431
              GEOM           61           11K          490
          routetbl           50           11K          176
         CAM queue            5           11K         1528
              cred           36            9K          234
         bmsafemap            4            9K           39
              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          296
         taskqueue           63            7K           63
            sglist            5            7K            5
           CAM DEV            3            6K          510
       ufs_dirhash           24            5K           24
               UMA          272            5K          272
            dirrem           17            5K           28
            plimit           17            5K          322
                vt           11            5K           11
             ifnet            3            5K            3
           memdesc            1            4K            1
               MCA           32            4K           32
          filedesc            1            4K            1
             evdev            4            4K            4
           acpisem           28            4K           28
             hhook           15            4K           17
       ether_multi           40            4K           50
            diradd           25            4K           36
           lltable           11            4K           11
          pf_ifnet            5            3K            6
         in6_multi           25            3K           25
          terminal           11            3K           11
           session           20            3K           31
            kqueue           40            3K          782
           pwddesc           40            3K          780
           uidinfo            3            3K            8
         proc-args           62            3K         1720
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
             selfd           27            2K         9066
            Unitno           27            2K           39
           CAM XPT           22            2K          543
             lockf           15            2K           22
               msi           12            2K           12
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
             clone            9            2K            9
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
       vnodemarker            2            1K           10
      NFSD session            1            1K            1
        CAM periph            4            1K          271
            select            7            1K           29
             ipsec            3            1K            3
          indirdep            3            1K            3
             nhops            6            1K            6
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
          sctp_ifa            5            1K            6
            crypto            4            1K            4
            ip6ndp            4            1K            5
 encap_export_host           12            1K           12
         newdirblk            4            1K            8
             mkdir            4            1K           16
          in_multi            2            1K            4
              pfil            4            1K            4
              cdev            2            1K            2
    chacha20random            1            1K            1
               osd            7            1K           18
       inpcbpolicy           10            1K          139
          sctp_ifn            2            1K            6
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
            DEVFSP            4            1K            9
             DEVFS            9            1K           10
          freework            1            1K           26
               mld            2            1K            2
              igmp            2            1K            2
            vnodes            1            1K            1
           CAM SIM            2            1K            2
            feeder            7            1K            7
           tcpfunc            3            1K            3
            CC Mem            3            1K            7
        loginclass            3            1K            7
            prison            6            1K            6
       lkpikmalloc            5            1K            6
        aesni_data            2            1K            2
         cryptodev            2            1K           49
          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
          procdesc            1            1K            6
          pmchooks            1            1K            1
            soname            4            1K         3471
          filecaps            4            1K           66
               tun            3            1K            3
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           35
               pmc            1            1K            1
          acpiintr            1            1K            1
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
               iov            1            1K        13498
          p1003.1b            1            1K            1
        sctp_mcore            0            0K            0
        sctp_socko            0            0K            0
         sctp_iter            0            0K            4
         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_athm            0            0K            0
         sctp_atky            0            0K            0
         sctp_atcl            0            0K            0
         sctp_a_it            0            0K            4
         sctp_aadr            0            0K            0
         sctp_stro            0            0K            0
         sctp_stri            0            0K            0
          sctp_map            0            0K            0
            mqdata            0            0K            0
          pf_table            0            0K            0
           pf_rule            0            0K            0
           pf_altq            0            0K            0
           pf_osfp            0            0K            0
           pf_temp            0            0K            0
            tcp_do            0            0K            0
           tcp_fsb            0            0K            0
           filemon            0            0K            0
            ipcomp            0            0K            0
               esp            0            0K            0
                ah            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
          dmar_ctx            0            0K            0
     msdosfs_mount            0            0K            0
      msdosfs_node            0            0K            0
              isci            0            0K            0
      iommu_dmamap            0            0K            0
     hyperv_socket            0            0K            0
           bxe_ilt            0            0K            0
            xenbus            0            0K            0
            DEVFS4            0            0K            0
     vm_fictitious            0            0K            0
            DEVFS2            0            0K            0
            gntdev            0            0K            0
       privcmd_dev            0            0K            0
        evtchn_dev            0            0K            0
          xenstore            0            0K            0
         scsi_pass            0            0K            0
         ciss_data            0            0K            0
               xnb            0            0K            0
          xen_acpi            0            0K            0
              xbbd            0            0K            0
               xbd            0            0K            0
           UMAHash            0            0K            0
           Balloon            0            0K            0
          sysmouse            0            0K            0
         vm_pgdata            0            0K            0
           jblocks            0            0K            0
          savedino            0            0K           16
          sentinel            0            0K            0
            jfsync            0            0K            0
            jtrunc            0            0K            0
             sbdep            0            0K            3
           jsegdep            0            0K            0
              jseg            0            0K            0
         jfreefrag            0            0K            0
          jfreeblk            0            0K            0
           jnewblk            0            0K            0
            jmvref            0            0K            0
           jremref            0            0K            0
           jaddref            0            0K            0
           freedep            0            0K            0
          freefile            0            0K            9
          freeblks            0            0K           25
          freefrag            0            0K            1
        allocindir            0            0K            0
       allocdirect            0            0K            0
          ufs_trim            0            0K            0
           mactemp            0            0K            0
     audit_trigger            0            0K            0
 audit_pipe_presel            0            0K            0
     audit_pipeent            0            0K            0
        audit_pipe            0            0K            0
      audit_evname            0            0K            0
         audit_bsm            0            0K            0
      audit_gidset            0            0K            0
        audit_text            0            0K            0
        audit_path            0            0K            0
        audit_data            0            0K            0
        audit_cred            0            0K            0
            vtfont            0            0K            0
         BACKLIGHT            0            0K            0
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        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
        MLX5EEPROM            0            0K            0
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        MLX5EEPROM            0            0K            0
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lDevFlags * malloc            0            0K            0
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db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320    1078       13380       0     254   38494208        0
              pbuf   2624       0     989           0       0       2    2595136        0
              mbuf    256    8581    1081       15805       0     254    2473472        0
          BUF TRIE    144     175   11613         425       0      62    1697472        0
        malloc-384    384    4169      31        4509       0      30    1612800        0
        malloc-128    128   11647      71       11681       0     126    1499904        0
       malloc-4096   4096     328       2         493       0       2    1351680        0
       UMA Slabs 0    112   10552      26       10552       0     126    1184736        0
      mbuf_cluster   2048     508       0         508       0     254    1040384        0
         vmem btag     56   16504      95       16504       0     254     929544        0
         FFS inode   1160     499      26         509       0       8     609000        0
             tcpcb   1104       3     508           7       0     254     564144        0
        RADIX NODE    144    3233     206       19876       0      62     495216        0
            socket    960      20     488        1337       0     254     487680        0
         VM OBJECT    264    1415     115       24439       0      30     403920        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
      malloc-65536  65536       4       1         140       0       1     327680        0
        256 Bucket   2048     128      16        1012       0       8     294912        0
         malloc-64     64    4113     486        5522       0     254     294336        0
             VNODE    448     529      47         541       0      30     258048        0
         malloc-16     16   14655     345       14729       0     254     240000        0
            DEVCTL   1024       0     220         126       0       0     225280        0
        malloc-256    256     825      45        1188       0      62     222720        0
            THREAD   1808     114       7         114       0       8     218768        0
       malloc-4096   4096      46       4         786       0       2     204800        0
         malloc-32     32    5361     561        5788       0     254     189504        0
         UMA Zones    768     244       0         244       0      16     187392        0
         MAP ENTRY     96    1566     324       84324       0     126     181440        0
       malloc-2048   2048       5      83        1061       0       8     180224        0
        malloc-128    128    1203     192       26870       0     126     178560        0
       malloc-1024   1024     117      27         325       0      16     147456        0
       FFS2 dinode    256     499      71         508       0      62     145920        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2          54       0       1     131072        0
             unpcb    256       9     501        1181       0     254     130560        0
       mbuf_packet    256       0     508          77       0     254     130048        0
       S VFS Cache    104     966     204        1005       0     126     121680        0
          ksiginfo    112      35    1009          50       0     126     116928        0
     FPU_save_area    832     116      19         128       0      16     112320        0
        128 Bucket   1024      46      53         480       0      16     101376        0
        malloc-128    128     525     250        3836       0     126      99200        0
          UMA Kegs    384     230       3         230       0      30      89472        0
             g_bio    408       0     210        4447       0      30      85680        0
           VMSPACE   2552      23      10         764       0       4      84216        0
      malloc-16384  16384       4       1         164       0       1      81920        0
              PROC   1352      39      18         779       0       8      77064        0
         malloc-64     64     520     551        1614       0     254      68544        0
        malloc-128    128     330     197         480       0     126      67456        0
        malloc-128    128     266     261        1040       0     126      67456        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-8192   8192       6       2         135       0       1      65536        0
       malloc-4096   4096      13       3          27       0       2      65536        0
        malloc-256    256     161      94         174       0      62      65280        0
         filedesc0   1072      40      16         780       0       8      60032        0
         malloc-64     64     504     315         740       0     254      52416        0
        malloc-128    128     152     251         639       0     126      51584        0
        malloc-128    128     137     266         189       0     126      51584        0
        malloc-256    256      73     122         798       0      62      49920        0
         32 Bucket    256      59     136       10334       0      62      49920        0
           DIRHASH   1024      35      13          35       0      16      49152        0
             NAMEI   1024       0      48       12233       0      16      49152        0
       malloc-8192   8192       6       0           6       0       1      49152        0
       malloc-1024   1024       6      42         530       0      16      49152        0
          syncache    168       0     264           5       0     254      44352        0
            clpbuf   2624       0      16          18       0      16      41984        0
       malloc-8192   8192       4       1           6       0       1      40960        0
       malloc-8192   8192       5       0           5       0       1      40960        0
       Mountpoints   2752       2      12           2       0       4      38528        0
         udp_inpcb    424       6      84         128       0      30      38160        0
            da_ccb    544       0      70        1221       0      16      38080        0
              pipe    744       7      43         284       0      16      37200        0
            pcpu-8      8    4223     385        4251       0     254      36864        0
         64 Bucket    512      61      11        1697       0      30      36864        0
         malloc-64     64       0     567       13178       0     254      36288        0
         malloc-64     64     136     431         155       0     254      36288        0
         malloc-64     64      90     477        9925       0     254      36288        0
         malloc-64     64      61     506        1053       0     254      36288        0
         malloc-64     64      13     554          31       0     254      36288        0
        malloc-128    128      35     244         111       0     126      35712        0
     routing nhops    256      10     125          17       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-384    384      62      28         112       0      30      34560        0
        malloc-384    384      58      32          59       0      30      34560        0
        malloc-256    256       2     133         283       0      62      34560        0
        malloc-256    256      18     117          23       0      62      34560        0
        malloc-256    256      57      78         655       0      62      34560        0
        malloc-256    256      20     115          26       0      62      34560        0
        malloc-256    256      10     125         565       0      62      34560        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       2       0          17       0       1      32768        0
       malloc-2048   2048       3      13          65       0       8      32768        0
       malloc-2048   2048       4      12          13       0       8      32768        0
       malloc-2048   2048       4      12         195       0       8      32768        0
       malloc-2048   2048       9       7          10       0       8      32768        0
       malloc-1024   1024      27       5          38       0      16      32768        0
       malloc-1024   1024       7      25           7       0      16      32768        0
       malloc-1024   1024       6      26         874       0      16      32768        0
        malloc-512    512      11      53          19       0      30      32768        0
        malloc-512    512       3      61         170       0      30      32768        0
        malloc-512    512       2      62          12       0      30      32768        0
           pcpu-64     64     493      19         493       0     254      32768        0
            ttyinq    160     135      65         300       0      62      32000        0
            cpuset    104       7     272           7       0     126      29016        0
         malloc-32     32     265     617        3092       0     254      28224        0
          4 Bucket     48       7     581          48       0     254      28224        0
         tcp_inpcb    424       3      60           7       0      30      26712        0
             ripcb    424       1      62           4       0      30      26712        0
         TURNSTILE    136     122      67         122       0      62      25704        0
       malloc-4096   4096       4       2         630       0       2      24576        0
       malloc-4096   4096       6       0           6       0       2      24576        0
           rtentry    176      13     125          17       0      62      24288        0
              PGRP     88      20     256          31       0     126      24288        0
    ertt_txseginfo     40       1     605         208       0     254      24240        0
          rl_entry     40      28     578          28       0     254      24240        0
             Files     80      73     227        6583       0     126      24000        0
          8 Bucket     80      42     258         285       0     126      24000        0
        malloc-384    384      27      33          29       0      30      23040        0
        malloc-384    384      30      30          30       0      30      23040        0
        SLEEPQUEUE     88     122     134         122       0     126      22528        0
         hostcache     64       1     314           1       0     254      20160        0
             udpcb     32       6     624         128       0     254      20160        0
   udp_inpcb ports     32       3     627          40       0     254      20160        0
              ertt     72       3     277           7       0     126      20160        0
               PWD     32      10     620         100       0     254      20160        0
         malloc-32     32       5     625          13       0     254      20160        0
         malloc-32     32     116     514         297       0     254      20160        0
         malloc-32     32      33     597          35       0     254      20160        0
         malloc-32     32      55     575         233       0     254      20160        0
         malloc-32     32      23     607        1072       0     254      20160        0
         16 Bucket    144      47      93         247       0      62      20160        0
          2 Bucket     32      44     586         282       0     254      20160        0
             KNOTE    160       0     125           8       0      62      20000        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       1       3         197       0       2      16384        0
       malloc-4096   4096       3       1           3       0       2      16384        0
       malloc-2048   2048       3       5           3       0       8      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
        sctp_laddr     48       0     336           4       0     254      16128        0
         malloc-16     16     478     522        3438       0     254      16000        0
              kenv    258      15      45        1037       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
   tcp_inpcb ports     32       1     377           1       0     254      12096        0
         malloc-32     32      81     297         892       0     254      12096        0
         malloc-16     16      10     740         196       0     254      12000        0
         malloc-16     16      18     732         131       0     254      12000        0
         malloc-16     16      16     734          56       0     254      12000        0
         malloc-16     16      34     716       26252       0     254      12000        0
         malloc-16     16      23     727        1251       0     254      12000        0
         malloc-16     16      11     739          59       0     254      12000        0
        malloc-384    384       0      30           1       0      30      11520        0
        malloc-384    384       2      28           2       0      30      11520        0
        malloc-384    384       1      29           1       0      30      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
           pcpu-16     16      14     498          14       0     254       8192        0
      vtnet_tx_hdr     24       0     334        1546       0     254       8016        0
       UMA Slabs 1    176       9      13           9       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_rack_pcb    896       0       0           0       0      16          0        0
      tcp_rack_map    120       0       0           0       0     126          0        0
       tcp_bbr_pcb    832       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
               ipq     56       0       0           0       0     254          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
             tcptw     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_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   2256       0       0           0       0     254          0        0
           sctp_ep   1208       0       0           0       0     254          0        0
   tcp_log_id_node    120       0       0           0       0     126          0        0
 tcp_log_id_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
udplite_inpcb ports     32       0       0           0       0     254          0        0
     udplite_inpcb    424       0       0           0       0      30          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
           NCLNODE    608       0       0           0       0      16          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
        TMPFS node    224       0       0           0       0      62          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
           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
         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-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-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-1024   1024       0       0           0       0      16          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 (6):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-freebsd-main 2022/05/26 06:04 freebsd-src 20b2b464ebb6 3037caa9 console log report syz C panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/main/kernel/sys/kern/uipc_usr
ci-freebsd-main 2022/05/26 05:49 freebsd-src 20b2b464ebb6 3037caa9 console log report syz C panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/main/kernel/sys/kern/uipc_usr
ci-freebsd-main 2022/05/26 04:33 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/main/kernel/sys/kern/uipc_usr
ci-freebsd-main 2022/05/26 04:02 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/main/kernel/sys/kern/uipc_usr
ci-freebsd-main 2022/05/26 03:36 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/main/kernel/sys/kern/uipc_usr
ci-freebsd-main 2022/05/26 03:26 freebsd-src 20b2b464ebb6 3037caa9 console log report panic: Assertion clen >= sizeof(*cm) && clen <= cm->cmsg_len failed at /syzkaller/managers/main/kernel/sys/kern/uipc_usr
* Struck through repros no longer work on HEAD.