syzbot


panic: ASan: Invalid access, NUM-byte write in devfs_get_cdevpriv

Status: auto-closed as invalid on 2022/01/15 09:38
Reported-by: syzbot+3666b95c4a56452f06c1@syzkaller.appspotmail.com
First crash: 1131d, last: 1131d

Sample crash report:
panic: ASan: Invalid access, 8-byte write at 0xfffffe009bfb93c0, UseAfterScope(f8)
cpuid = 1
time = 1634463448
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe009bfb8fb0
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe009bfb9110
vpanic() at vpanic+0x2c5/frame 0xfffffe009bfb91f0
panic() at panic+0xb5/frame 0xfffffe009bfb92c0
__asan_store8_noabort() at __asan_store8_noabort+0x376/frame 0xfffffe009bfb9380
devfs_get_cdevpriv() at devfs_get_cdevpriv+0x5c/frame 0xfffffe009bfb93a0
kcov_ioctl() at kcov_ioctl+0x23/frame 0xfffffe009bfb93f0
devfs_ioctl() at devfs_ioctl+0x22a/frame 0xfffffe009bfb94d0
VOP_IOCTL_APV() at VOP_IOCTL_APV+0xb0/frame 0xfffffe009bfb9510
vn_ioctl() at vn_ioctl+0x215/frame 0xfffffe009bfb9860
devfs_ioctl_f() at devfs_ioctl_f+0x71/frame 0xfffffe009bfb98b0
kern_fcntl() at kern_fcntl+0xbe3/frame 0xfffffe009bfb9bf0
kern_fcntl_freebsd() at kern_fcntl_freebsd+0x289/frame 0xfffffe009bfb9d30
amd64_syscall() at amd64_syscall+0x412/frame 0xfffffe009bfb9f30
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe009bfb9f30
--- syscall (198, FreeBSD ELF64, nosys), rip = 0x289e7a, rsp = 0x7fffdfffdf08, rbp = 0x7fffdfffdf70 ---
KDB: enter: panic
[ thread pid 7476 tid 106692 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28dfffa(%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         0x7a6a892208b1d5b3
rdx                        0x1
rbx                          0
rsp         0xfffffe009bfb90f0
rbp         0xfffffe009bfb9110
rsi                          0
rdi         0xffffffff817c00ca  vprintf+0x35a
r8                           0
r9          0xfffffe009bfb8c28
r10                          0
r11         0xfffffe009e9cf8b0
r12         0xfffffe009e9cf3a0
r13         0xfffffe009bfb9101
r14         0xffffffff82c85f40  .str.18
r15         0xffffffff82c85f40  .str.18
rip         0xffffffff817b3a3b  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x28dfffa(%rip)
db> show proc
Process 7476 (syz-executor.1) at 0xfffffe00a3edb000:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 7474 at 0xfffffe00a3e97000
 ABI: FreeBSD ELF64
 flag: 0x10000010  flag2: 0
 arguments: /root/syz-executor.1 exec
 reaper: 0xfffffe0053d58538 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe009e9e29f8
   (map 0xfffffe009e9e29f8)
   (map.pmap 0xfffffe009e9e2ab8)
   (pmap 0xfffffe009e9e2b20)
 threads: 1
106692                   Run     CPU 1                       syz-executor.1
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 7477   781   781     0  R       (threaded)                  syz-executor.2
106709                   RunQ                                syz-executor.2
106760                   RunQ                                syz-executor.2
 7476  7474   778     0  RV      CPU 1                       syz-executor.1
 7474  7470   778     0  DV      ppwait  0xfffffe00a3edb4e8  syz-executor.1
 7473   782   782     0  R       (threaded)                  syz-executor.3
106749                   RunQ                                syz-executor.3
106757                   Run     CPU 0                       syz-executor.3
 7472   777   777     0  R       (threaded)                  syz-executor.0
106697                   RunQ                                syz-executor.0
106758                   S       aiowc   0xfffffe009e9db8b0  syz-executor.0
 7470   778   778     0  R       (threaded)                  syz-executor.1
101531                   RunQ                                syz-executor.1
106755                   D       ppwait  0xfffffe00a3e974e8  syz-executor.1
106761                   RunQ                                syz-executor.1
 7418  7416   777     0  SV      uwait   0xfffffe0058815e00  syz-executor.0
 7416     1   777     0  DV      ppwait  0xfffffe00a3e1c4e8  syz-executor.0
 2283  2273  2283     0  Ss      select  0xfffffe00a3e61ec0  dhclient
 2277     1  2277     0  Ss      select  0xfffffe00588134c0  dhclient
 2273  2247   431    65  S       select  0xfffffe0058813640  dhclient
 2247   431   431     0  S       wait    0xfffffe009e9dba70  sh
  824     0     0     0  DL      aiordy  0xfffffe00a3e1c538  [aiod4]
  823     0     0     0  DL      aiordy  0xfffffe00a3e1ca70  [aiod3]
  822     0     0     0  DL      aiordy  0xfffffe009e9db000  [aiod2]
  821     0     0     0  DL      aiordy  0xfffffe009e42da70  [aiod1]
  782   775   782     0  Ss      nanslp  0xffffffff84060901  syz-executor.3
  781   775   781     0  Ss      nanslp  0xffffffff84060900  syz-executor.2
  778   775   778     0  Ss      nanslp  0xffffffff84060901  syz-executor.1
  777   775   777     0  Ss      nanslp  0xffffffff84060900  syz-executor.0
  775   773   773     0  S       (threaded)                  syz-fuzzer
100096                   S       uwait   0xfffffe005881d880  syz-fuzzer
100113                   S       uwait   0xfffffe005881d780  syz-fuzzer
100114                   S       uwait   0xfffffe0058818580  syz-fuzzer
100115                   S       uwait   0xfffffe0058818a80  syz-fuzzer
100116                   S       uwait   0xfffffe0058815200  syz-fuzzer
100117                   S       uwait   0xfffffe0058818980  syz-fuzzer
100118                   S       uwait   0xfffffe0058815100  syz-fuzzer
100119                   S       kqread  0xfffffe0058942400  syz-fuzzer
100120                   S       uwait   0xfffffe0058815000  syz-fuzzer
  773   771   773     0  Ss      pause   0xfffffe009e3fcb20  csh
  771   689   771     0  Ss      select  0xfffffe0058815540  sshd
  755     1   755     0  Ss+     ttyin   0xfffffe0056fec8b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00575da8b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00575dacb0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe00583e40b0  getty
  751     1   751     0  Ss+     ttyin   0xfffffe00583e44b0  getty
  750     1   750     0  Ss+     ttyin   0xfffffe00583e48b0  getty
  749     1   749     0  Ss+     ttyin   0xfffffe00583e4cb0  getty
  748     1   748     0  Ss+     ttyin   0xfffffe005752f0b0  getty
  747     1   747     0  Ss+     ttyin   0xfffffe005752f4b0  getty
  693     1   693     0  Ss      nanslp  0xffffffff84060901  cron
  689     1   689     0  Ss      select  0xfffffe00588664c0  sshd
  502     1   502     0  Ss      select  0xfffffe0058866ec0  syslogd
  431     1   431     0  Ss      wait    0xfffffe0058aeea70  devd
  430     1   430    65  Ss      select  0xfffffe00588665c0  dhclient
  345     1   345     0  Ss      select  0xfffffe0058818440  dhclient
  342     1   342     0  Ss      select  0xfffffe0058866e40  dhclient
   18     0     0     0  DL      syncer  0xffffffff84188d60  [syncer]
   17     0     0     0  DL      vlruwt  0xfffffe0058748a70  [vnlru]
   16     0     0     0  DL      (threaded)                  [bufdaemon]
100078                   D       qsleep  0xffffffff84186a60  [bufdaemon]
100081                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100090                   D       sdflush 0xfffffe0058868ce8  [/ worker]
   15     0     0     0  DL      psleep  0xffffffff841bef80  [vmdaemon]
    9     0     0     0  DL      (threaded)                  [pagedaemon]
100076                   D       psleep  0xffffffff841b2ab8  [dom0]
100082                   D       launds  0xffffffff841b2ac4  [laundry: dom0]
100083                   D       umarcl  0xffffffff81eb7e70  [uma]
    8     0     0     0  DL      -       0xffffffff83e16be0  [rand_harvestq]
    7     0     0     0  DL      waiting 0xffffffff84dae760  [sctp_iterator]
    6     0     0     0  DL      pftm    0xffffffff84f792f0  [pf purge]
    5     0     0     0  DL      (threaded)                  [cam]
100045                   D       -       0xffffffff83c9c3c0  [doneq0]
100046                   D       -       0xffffffff83c9c340  [async]
100075                   D       -       0xffffffff83c9c1c0  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056ab7c88  [sequencer 00]
    4     0     0     0  DL      crypto_ 0xfffffe0053e2ba80  [crypto returns 1]
    3     0     0     0  DL      crypto_ 0xfffffe0053e2ba30  [crypto returns 0]
    2     0     0     0  DL      crypto_ 0xffffffff841acb60  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100036                   D       -       0xffffffff84033b00  [g_event]
100037                   D       -       0xffffffff84033b40  [g_up]
100038                   D       -       0xffffffff84033b80  [g_down]
   12     0     0     0  WL      (threaded)                  [intr]
100012                   I                                   [swi5: fast taskq]
100016                   I                                   [swi6: task queue]
100017                   I                                   [swi6: Giant taskq]
100029                   I                                   [swi1: netisr 0]
100030                   I                                   [swi4: clock (0)]
100031                   I                                   [swi4: clock (1)]
100032                   I                                   [swi3: vm]
100033                   I                                   [swi1: hpts]
100034                   I                                   [swi1: hpts]
100047                   I                                   [irq24: virtio_pci0]
100048                   I                                   [irq25: virtio_pci0]
100049                   I                                   [irq26: virtio_pci0]
100050                   I                                   [irq27: virtio_pci0]
100051                   I                                   [irq28: virtio_pci1]
100052                   I                                   [irq29: virtio_pci1]
100053                   I                                   [irq30: virtio_pci1]
100054                   I                                   [irq31: virtio_pci1]
100055                   I                                   [irq32: virtio_pci1]
100060                   I                                   [irq10: virtio_pci2]
100062                   I                                   [irq1: atkbd0]
100063                   I                                   [irq12: psm0]
100064                   I                                   [swi0: uart uart++]
100068                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0053d58538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841adb00  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff84034a00  [swapper]
100005                   D       -       0xfffffe00081f1d00  [softirq_0]
100006                   D       -       0xfffffe00081f1c00  [softirq_1]
100007                   D       -       0xfffffe00081f1b00  [if_io_tqg_0]
100008                   D       -       0xfffffe00081f1a00  [if_io_tqg_1]
100009                   D       -       0xfffffe00081f1900  [if_config_tqg_0]
100010                   D       -       0xfffffe00081f1800  [deferred_unmount ta]
100011                   D       -       0xfffffe00081f1700  [thread taskq]
100013                   D       -       0xfffffe00081f1500  [kqueue_ctx taskq]
100014                   D       -       0xfffffe00081f1400  [pci_hp taskq]
100015                   D       -       0xfffffe00081f1300  [linuxkpi_irq_wq]
100018                   D       -       0xfffffe00081f1000  [aiod_kick taskq]
100019                   D       -       0xfffffe0053e07e00  [inm_free taskq]
100020                   D       -       0xfffffe0053e07d00  [in6m_free taskq]
100021                   D       -       0xfffffe0053e07c00  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0053e07c00  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0053e07c00  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0053e07c00  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0053e07b00  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0053e07b00  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0053e07b00  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0053e07b00  [linuxkpi_long_wq_3]
100035                   D       -       0xfffffe0053e07a00  [firmware taskq]
100039                   D       -       0xfffffe0053e07000  [crypto_0]
100040                   D       -       0xfffffe0053e07000  [crypto_1]
100056                   D       -       0xfffffe0056a64100  [vtnet0 rxq 0]
100057                   D       -       0xfffffe0056a64000  [vtnet0 txq 0]
100058                   D       -       0xfffffe0056ebae00  [vtnet0 rxq 1]
100059                   D       -       0xfffffe0056ebad00  [vtnet0 txq 1]
100061                   D       vtbslp  0xfffffe0056fcdc00  [virtio_balloon]
100065                   D       -       0xfffffe0056eba900  [mca taskq]
100066                   D       -       0xffffffff82c8cec0  [deadlkres]
100071                   D       -       0xfffffe0056a64900  [acpi_task_0]
100072                   D       -       0xfffffe0056a64900  [acpi_task_1]
100073                   D       -       0xfffffe0056a64900  [acpi_task_2]
100074                   D       -       0xfffffe0056a64800  [CAM taskq]
db> show all locks
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4213         4323K         4241
          tcp_hpts            6         3201K            6
         sysctloid        34962         2059K        35033
             vtbuf           24         1968K           46
          inodedep         2360         1397K         6649
              kobj          326         1304K          486
            newblk          669         1191K         7299
          vfscache            3         1025K            3
            dirrem         2339          585K         6583
               pcb           27          539K         2774
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
          freefile         2338          293K         6580
           subproc          134          261K         7554
          filedesc           26          201K        13187
            acpica         1674          184K        55237
         vnet_data            1          168K            1
              vmem            3          146K            4
           tidhash            3          141K            3
            linker          355          140K          383
           pagedep           16          132K         6586
        tfo_ccache            1          128K            1
            DEVFS1          108          108K          125
               sem            4          106K            4
               bus          986           80K         3474
          mtx_pool            2           72K            2
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          509           64K          509
              umtx          352           44K          352
           kdtrace          213           43K        14240
               BPF           22           36K          873
              temp           34           33K         1988
         hostcache            1           32K            1
               shm            1           32K            1
            DEVFS3          127           32K          137
               msg            4           30K            4
        gtaskqueue           18           26K           18
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
            ifaddr           67           19K           69
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
          routetbl          130           16K          410
            bus-sc           34           15K         1691
           lltable           43           14K           43
            KTRACE          100           13K          100
             ifnet            7           13K            7
       ether_multi          152           13K          162
              kenv           95           12K           95
      eventhandler          133           12K          133
         CAM queue            5           11K         1528
              GEOM           61           10K          492
              rman           84           10K          425
         in6_multi           65            9K           65
         bmsafemap            2            9K         6616
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K            1
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          295
         taskqueue           63            7K           63
            sglist            5            7K            5
           CAM DEV            3            6K          510
            kqueue           60            6K         7486
              cred           23            6K          205
            plimit           21            6K          349
       ufs_dirhash           24            5K           24
            DEVFSP           74            5K          933
               UMA          268            5K          268
          pf_ifnet           10            5K           19
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
             evdev            4            4K            4
          kcovinfo           64            4K           68
           pwddesc           58            4K         7478
           acpisem           28            4K           28
             hhook           15            4K           17
           session           25            4K           40
          terminal           11            3K           11
         proc-args           44            3K          588
           uidinfo            3            3K            7
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
             mkdir           16            2K        13150
            diradd           16            2K         6616
         ipsec-saq            2            2K            2
             lockf           19            2K           29
             selfd           31            2K        98426
            ip6ndp           12            2K           13
            Unitno           31            2K           47
          sctp_ifa           13            2K           14
         newdirblk           13            2K         6575
           CAM XPT           22            2K          543
          in_multi            6            2K            8
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
            select           10            2K           37
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            7
          freework            5            2K         6580
           softdep            1            1K            1
          freeblks            4            1K         6579
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           14
      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
          indirdep            2            1K           10
              pfil            4            1K            4
              cdev            2            1K            2
       inpcbpolicy           15            1K          572
               osd            8            1K          404
         sctp_atcl            1            1K         1344
    chacha20random            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            vnodes            1            1K            1
           CAM SIM            2            1K            2
          procdesc            2            1K           12
            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
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
             xform            2            1K           42
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
          pmchooks            1            1K            1
            soname            4            1K         5133
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           39
          acpiintr            1            1K            1
               pmc            1            1K            1
         sctp_atky            1            1K         1344
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          filecaps            2            1K           90
         sctp_athm            1            1K         1344
          p1003.1b            1            1K            1
            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
        sctp_mcore            0            0K            0
        sctp_socko            0            0K          752
         sctp_iter            0            0K           12
         sctp_mvrf            0            0K            0
         sctp_timw            0            0K            0
         sctp_cpal            0            0K            0
         sctp_cmsg            0            0K            0
         sctp_stre            0            0K            0
         sctp_athi            0            0K            0
         sctp_a_it            0            0K           12
         sctp_aadr            0            0K            0
         sctp_stro            0            0K            0
         sctp_stri            0            0K            0
          sctp_map            0            0K            0
        cubic data            0            0K            0
         htcp data            0            0K            0
        dctcp data            0            0K            0
          cdg data            0            0K            0
        vegas data            0            0K            0
            tcp_do            0            0K            0
           tcp_fsb            0            0K            0
          chd data            0            0K            0
     NFSD rollback            0            0K            0
      NFSCL diroff            0            0K            0
        madt_table            0            0K            2
          smartpqi            0            0K            0
       NEWdirectio            0            0K            0
        NEWNFSnode            0            0K            0
         NFSCL lck            0            0K            0
      NFSCL lckown            0            0K            0
      NFSCL client            0            0K            0
       NFSCL deleg            0            0K            0
        NFSCL open            0            0K            0
       NFSCL owner            0            0K            0
              iavf            0            0K            0
               ixl            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
      NFSD V4state            0            0K            0
        ice-resmgr            0            0K            0
         ice-osdep            0            0K            0
               ice            0            0K            0
             axgbe            0            0K            0
     NFSD srvcache            0            0K            0
       msdosfs_fat            0            0K            0
     msdosfs_mount            0            0K            0
      msdosfs_node            0            0K            0
            DEVFS4            0            0K            0
          xen_intr            0            0K            0
            DEVFS2            0            0K            0
           xen_hvm            0            0K            0
         legacydrv            0            0K            0
            qpidrv            0            0K            0
            gntdev            0            0K            0
       privcmd_dev            0            0K            0
      dmar_idpgtbl            0            0K            0
          dmar_dom            0            0K            0
          dmar_ctx            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     979       27761       0     254   38088704        0
              pbuf   2624       0     973           0       0       2    2553152        0
              mbuf    256    8632     938       61348       0     254    2449920        0
          BUF TRIE    144     197   11563         616       0      62    1693440        0
        malloc-384    384    4193       7        4193       0      30    1612800        0
        malloc-128    128   11462      39       11471       0     126    1472128        0
       malloc-4096   4096     326       2         488       0       2    1343488        0
        malloc-384    384    2433     687        8088       0      30    1198080        0
       UMA Slabs 0    112   10427      10       10427       0     126    1168944        0
      mbuf_cluster   2048     525       1         525       0     254    1077248        0
        malloc-256    256    3091     704       14173       0      62     971520        0
         vmem btag     56   16981     130       16981       0     254     958216        0
        RADIX NODE    144    6076     331      202924       0      63     922608        0
        malloc-256    256       5    3130        4921       0      62     802560        0
         FFS inode   1160     506      40        7087       0       8     633360        0
        malloc-128    128    3604     705       42483       0     126     551552        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
       malloc-4096   4096      81       3        8055       0       2     344064        0
         VM OBJECT    264    1121     109      106598       0      30     324720        0
            THREAD   1808     154      22        6761       0       8     318208        0
      malloc-16384  16384      16       2        6770       0       1     294912        0
             VNODE    448     542      97        7125       0      30     286272        0
        256 Bucket   2048     120      18       11279       0       8     282624        0
      malloc-65536  65536       4       0           4       0       1     262144        0
         malloc-64     64    3817      26        3824       0     254     245952        0
         malloc-16     16   14444     306       14917       0     254     236000        0
            DEVCTL   1024      21     199         151       0       0     225280        0
         UMA Zones    768     240       4         240       0      16     187392        0
         malloc-32     32    5272     146        5313       0     254     173376        0
         MAP ENTRY     96    1399     365      404487       0     126     169344        0
     FPU_save_area    832     156      33        6953       0      16     157248        0
       malloc-8192   8192      13       4         142       0       1     139264        0
        malloc-128    128    1026      59        3071       0     126     138880        0
       FFS2 dinode    256     506      34        7086       0      62     138240        0
            socket    960      29     115       13804       0     254     138240        0
       S VFS Cache    104    1007     319        7604       0     126     137904        0
       mbuf_packet    256       5     520        8907       0     254     134400        0
      malloc-65536  65536       2       0           2       0       1     131072        0
      malloc-65536  65536       0       2         210       0       1     131072        0
       malloc-1024   1024     110       6         127       0      16     118784        0
             g_bio    408       0     290        5455       0      30     118320        0
          ksiginfo    112      65     979         267       0     126     116928        0
           VMSPACE   2552      33      12        7453       0       4     114840        0
       malloc-2048   2048       8      46        1149       0       8     110592        0
              PROC   1336      57      18        7477       0       8     100200        0
      malloc-32768  32768       3       0           3       0       1      98304        0
        128 Bucket   1024      56      39        1950       0      16      97280        0
        malloc-256    256     244     116       14150       0      62      92160        0
          UMA Kegs    384     226       7         226       0      30      89472        0
         64 Bucket    512     122      46        5938       0      30      86016        0
            clpbuf   2624       0      32          24       0      16      83968        0
         filedesc0   1072      58      19        7478       0       8      82544        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         130       0       1      65536        0
         32 Bucket    256      74     181       13239       0      62      65280        0
           sctp_ep   1272       1      47        1344       0     254      61056        0
      malloc-16384  16384       3       0           3       0       1      49152        0
       malloc-2048   2048       3      21        1346       0       8      49152        0
        malloc-256    256     153      27         173       0      62      46080        0
            da_ccb    544       0      84        1489       0      16      45696        0
       malloc-1024   1024       8      36        1782       0      16      45056        0
              pipe    744      34      26        1721       0      16      44640        0
         malloc-64     64     515     178       19052       0     254      44352        0
        malloc-128    128     306      35        7100       0     126      43648        0
       malloc-8192   8192       5       0           5       0       1      40960        0
            pcpu-8      8    4653     467       10766       0     254      40960        0
           DIRHASH   1024      34       2          34       0      16      36864        0
             NAMEI   1024       0      36       40755       0      16      36864        0
       malloc-4096   4096       9       0           9       0       2      36864        0
         malloc-64     64     336     231      113659       0     254      36288        0
         malloc-64     64     495      72         989       0     254      36288        0
        malloc-128    128     162     117       13427       0     126      35712        0
        malloc-256    256      85      50        7567       0      62      34560        0
       malloc-8192   8192       2       2           4       0       1      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
             Files     80     220     180       31069       0     126      32000        0
        malloc-256    256      48      72        1391       0      62      30720        0
       malloc-4096   4096       4       3         101       0       2      28672        0
       malloc-1024   1024      23       5          44       0      16      28672        0
             KNOTE    160      28     147       58102       0      62      28000        0
             unpcb    256      11      94       11861       0     254      26880        0
         TURNSTILE    136     177      12         177       0      62      25704        0
       malloc-4096   4096       2       4        6758       0       2      24576        0
    ertt_txseginfo     40       0     606       10838       0     254      24240        0
               PWD     32      20     736        6664       0     254      24192        0
         malloc-64     64      90     288        8088       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-384    384      53       7         394       0      30      23040        0
             tcpcb   1096       4      17         393       0     254      23016        0
       malloc-2048   2048       3       7          27       0       8      20480        0
        malloc-512    512       6      34         857       0      30      20480        0
         malloc-64     64     221      94         234       0     254      20160        0
         16 Bucket    144      57      83         396       0      62      20160        0
             AIOCB    552       0      35         848       0      16      19320        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-256    256      35      40       13247       0      62      19200        0
        SLEEPQUEUE     88     177      15         177       0     126      16896        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-2048   2048       7       1           7       0       8      16384        0
       malloc-2048   2048       7       1           7       0       8      16384        0
       malloc-2048   2048       4       4         197       0       8      16384        0
       malloc-1024   1024       9       7          11       0      16      16384        0
        malloc-512    512       3      29         196       0      30      16384        0
         malloc-64     64     149     103        1012       0     254      16128        0
         malloc-32     32     160     344        7338       0     254      16128        0
         malloc-32     32     424      80        1952       0     254      16128        0
      vtnet_tx_hdr     24       0     668       12924       0     254      16032        0
        malloc-384    384      34       6          34       0      30      15360        0
       malloc-1024   1024       8       4           9       0      16      12288        0
       malloc-1024   1024       9       3           9       0      16      12288        0
        malloc-512    512      10      14          22       0      30      12288        0
         malloc-32     32      30     348        4264       0     254      12096        0
         malloc-16     16     346     404         583       0     254      12000        0
          8 Bucket     80      48     102        1659       0     126      12000        0
         tcp_inpcb    496       4      20         393       0     254      11904        0
         udp_inpcb    496       8      16         170       0     254      11904        0
        malloc-128    128      56      37          78       0     126      11904        0
        malloc-128    128      61      32          61       0     126      11904        0
               AIO    208       4      53         834       0      62      11856        0
              kenv    258      15      30        1031       0      30      11610        0
        malloc-256    256      16      29         109       0      62      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       2       0           2       0       2       8192        0
       malloc-2048   2048       3       1           3       0       8       8192        0
       malloc-1024   1024       0       8           6       0      16       8192        0
       malloc-1024   1024       3       5           3       0      16       8192        0
           rtentry    176      30      16          34       0      62       8096        0
              PGRP     88      25      67          40       0     126       8096        0
          rl_entry     40      45     157          45       0     254       8080        0
        sctp_laddr     48       0     168          12       0     254       8064        0
             udpcb     32       9     243         171       0     254       8064        0
              ertt     72       4     108         393       0     126       8064        0
         malloc-64     64      31      95          61       0     254       8064        0
         malloc-32     32      22     230         579       0     254       8064        0
         malloc-32     32      45     207          88       0     254       8064        0
         malloc-32     32      62     190         880       0     254       8064        0
         malloc-32     32      25     227          56       0     254       8064        0
          4 Bucket     48       8     160         206       0     254       8064        0
          2 Bucket     32      49     203        1164       0     254       8064        0
         malloc-16     16      16     484          17       0     254       8000        0
         malloc-16     16      20     480        1370       0     254       8000        0
         malloc-16     16      32     468         739       0     254       8000        0
         malloc-16     16     188     312        1426       0     254       8000        0
         malloc-16     16      26     474       27193       0     254       8000        0
         malloc-16     16       8     492           8       0     254       8000        0
             ripcb    496       2      14           8       0     254       7936        0
        malloc-128    128       8      54           8       0     126       7936        0
     routing nhops    256      27       3          34       0      62       7680        0
        malloc-384    384       0      20          27       0      30       7680        0
            cpuset    104       7      55           7       0     126       6448        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-4096   4096       0       1           1       0       2       4096        0
       malloc-2048   2048       1       1           1       0       8       4096        0
        malloc-512    512       0       8           1       0      30       4096        0
        malloc-512    512       5       3           5       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
              AIOP     32       4     122           4       0     254       4032        0
     udplite_inpcb    496       1       7           1       0     254       3968        0
       UMA Slabs 1    176       9      13           9       0      62       3872        0
        malloc-384    384       2       8           3       0      30       3840        0
        malloc-384    384       2       8           2       0      30       3840        0
            AIOLIO    272       0      14           3       0      30       3808        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      12      27          14       0       0       3744        0
              vmem   1856       1       1           1       0       8       3712        0
           SMR CPU     32       3      60           3       0     254       2016        0
        SMR SHARED     24       3      60           3       0     254       1512        0
       FFS1 dinode    128       0       0           0       0     126          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
sctp_stream_msg_out    112       0       0           0       0     254          0        0
        sctp_readq    152       0       0           0       0     254          0        0
        sctp_chunk    152       0       0           0       0     254          0        0
        sctp_raddr    736       0       0           0       0     254          0        0
         sctp_asoc   2288       0       0           0       0     254          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    312       0       0           0       0     254          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags     48       0       0           0       0     254          0        0
       tcp_bbr_pcb    832       0       0           0       0      16          0        0
       tcp_bbr_map    128       0       0           0       0     126          0        0
      tcp_rack_pcb    832       0       0           0       0      16          0        0
      tcp_rack_map    112       0       0           0       0     126          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
           tcp_log    416       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
tfo_ccache_entries     80       0       0           0       0     126          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
             tcptw     88       0       0           0       0     254          0        0
               ipq     56       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
            itimer    352       0       0           0       0      30          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
        TMPFS node    224       0       0           0       0      62          0        0
           NCLNODE    592       0       0           0       0      16          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
           cryptop    280       0       0           0       0      30          0        0
  linux_dma_object     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-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
       malloc-8192   8192       0       0           0       0       1          0        0
       malloc-4096   4096       0       0           0       0       2          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-512    512       0       0           0       0      30          0        0
        malloc-384    384       0       0           0       0      30          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            pcpu-4      4       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/10/17 09:37 freebsd-src 79239b5b4754 0c5d9412 console log report ci-freebsd-main panic: ASan: Invalid access, NUM-byte write in devfs_get_cdevpriv
* Struck through repros no longer work on HEAD.