syzbot


Fatal trap NUM: page fault in in6_unlink_ifa

Status: auto-closed as invalid on 2022/01/02 02:10
Reported-by: syzbot+eae31fe0eab6022a4aae@syzkaller.appspotmail.com
First crash: 930d, last: 930d
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd Fatal trap NUM: page fault in in6_unlink_ifa (4) 1 35d 35d 0/2 upstream: reported on 2024/03/16 21:09
freebsd Fatal trap 12: page fault in in6_unlink_ifa (2) syz 20 1026d 1414d 0/2 closed as invalid on 2021/09/09 13:22
freebsd Fatal trap NUM: page fault in in6_unlink_ifa (3) 1 257d 257d 0/2 auto-obsoleted due to no activity on 2023/11/06 00:40
freebsd Fatal trap NUM: page fault in in6_unlink_ifa (2) 1 742d 742d 0/2 auto-closed as invalid on 2022/07/08 14:46

Sample crash report:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0xe0
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff81bc2dbf
stack pointer	        = 0x28:0xfffffe00a5e4c140

frame pointer	        = 0x28:0xfffffe00a5e4c230

FreeBSD/amd64code segment		= base 0x0, limit 0xfffff, type 0x1b
 (ci-freebsd-i38			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 6311 (syz-executor.1)
trap number		= 12
panic: page fault
cpuid = 0
time = 1633313361
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe00a5e4b950
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe00a5e4bab0
vpanic() at vpanic+0x2c5/frame 0xfffffe00a5e4bb90
panic() at panic+0xb5/frame 0xfffffe00a5e4bc50
trap_fatal() at trap_fatal+0x6a4/frame 0xfffffe00a5e4bd50
trap_pfault() at trap_pfault+0x186/frame 0xfffffe00a5e4be90
trap() at trap+0x5e7/frame 0xfffffe00a5e4c070
calltrap() at calltrap+0x8/frame 0xfffffe00a5e4c070
--- trap 0xc, rip = 0xffffffff81bc2dbf, rsp = 0xfffffe00a5e4c140, rbp = 0xfffffe00a5e4c230 ---
in6_unlink_ifa() at in6_unlink_ifa+0x1ef/frame 0xfffffe00a5e4c230
in6_purgeaddr() at in6_purgeaddr+0xa84/frame 0xfffffe00a5e4c530
in6_purgeifaddr() at in6_purgeifaddr+0x31/frame 0xfffffe00a5e4c570
if_purgeaddrs() at if_purgeaddrs+0x2a1/frame 0xfffffe00a5e4c6f0
tundtor() at tundtor+0x4bd/frame 0xfffffe00a5e4c780
devfs_destroy_cdevpriv() at devfs_destroy_cdevpriv+0x168/frame 0xfffffe00a5e4c7c0
devfs_close_f() at devfs_close_f+0xbd/frame 0xfffffe00a5e4c800
_fdrop() at _fdrop+0x58/frame 0xfffffe00a5e4c830
closef() at closef+0x686/frame 0xfffffe00a5e4ca20
fdescfree_fds() at fdescfree_fds+0x1fa/frame 0xfffffe00a5e4ca90
fdescfree() at fdescfree+0x903/frame 0xfffffe00a5e4cc80
exit1() at exit1+0x8b7/frame 0xfffffe00a5e4cd10
sys_sys_exit() at sys_sys_exit+0x28/frame 0xfffffe00a5e4cd30
ia32_syscall() at ia32_syscall+0x41f/frame 0xfffffe00a5e4cf30
int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0xffffd5e0
KDB: enter: panic
[ thread pid 6311 tid 100914 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x28df05a(%rip)
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         0x57b9f045b26aff58
rdx                        0x1
rbx                          0
rsp         0xfffffe00a5e4ba90
rbp         0xfffffe00a5e4bab0
rsi                          0
rdi         0xffffffff817becea  vprintf+0x35a
r8                           0
r9          0xfffffe00a5e4b5c8
r10                          0
r11         0xfffffe0058955190
r12         0xfffffe009eac9740
r13         0xfffffe00a5e4bb01
r14         0xffffffff82c82d00  .str.18
r15         0xffffffff82c82d00  .str.18
rip         0xffffffff817b265b  kdb_enter+0x6b
rflags                0x200046  kernload+0x46
kdb_enter+0x6b: movq    $0,0x28df05a(%rip)
db> show proc
Process 6311 (syz-executor.1) at 0xfffffe009eb52538:
 state: NORMAL
 uid: 0  gids: 0, 0, 5
 parent: pid 1 at 0xfffffe0053d59538
 ABI: FreeBSD ELF32
 flag: 0x10002000  flag2: 0
 arguments: /root/syz-executor.1 exec
 reaper: 0xfffffe0053d59538 reapsubtree: 1
 sigparent: 20
 vmspace: 0xfffffe009e574000
   (map 0xfffffe009e574000)
   (map.pmap 0xfffffe009e5740c0)
   (pmap 0xfffffe009e574120)
 threads: 1
100914                   Run     CPU 0                       syz-executor.1
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 6318   787   787     0  S       (threaded)                  syz-executor.2
101886                   S       nanslp  0xffffffff8405e581  syz-executor.2
106016                   S       connec  0xfffffe00a763fc1a  syz-executor.2
106017                   S       uwait   0xfffffe0058783700  syz-executor.2
 6317  6283   436     0  L      *in6_ifa 0xfffffe009e542900  ifconfig
 6311     1  6311     0  RE      CPU 0                       syz-executor.1
 6283  6277   436     0  S       wait    0xfffffe00588bf000  sh
 6277   436   436     0  S       wait    0xfffffe00a3c6c000  sh
 6259     1  6259    65  Ss      select  0xfffffe00575570c0  dhclient
 5085     1  5085     0  Ss      select  0xfffffe009e41f6c0  dhclient
 5082     1  5082     0  Ss      select  0xfffffe009e41f8c0  dhclient
 2849     1  2849    65  Ss      select  0xfffffe009e41f5c0  dhclient
 2315     1   783     0  S       uwait   0xfffffe0058850600  syz-executor.0
 1707     1  1707     0  Ss      select  0xfffffe009e41f540  dhclient
 1704     1  1704     0  Ss      select  0xfffffe009e41fbc0  dhclient
 1685     1  1685    65  Ss      select  0xfffffe009e3110c0  dhclient
 1110     1  1110     0  Ss      select  0xfffffe009e41f840  dhclient
 1107     1  1107     0  Ss      select  0xfffffe009e41f640  dhclient
  966     0     0     0  DL      aiordy  0xfffffe009ea59a70  [aiod4]
  964     0     0     0  DL      aiordy  0xfffffe0058b57538  [aiod3]
  962     0     0     0  DL      aiordy  0xfffffe009ea59000  [aiod2]
  960     0     0     0  DL      aiordy  0xfffffe0058b4a538  [aiod1]
  812   780   812     0  Ss      piperd  0xfffffe00588ddba0  syz-executor.3
  787   780   787     0  Ss      nanslp  0xffffffff8405e581  syz-executor.2
  783   780   783     0  Ss      piperd  0xfffffe009ea148b8  syz-executor.0
  780   778   778     0  S       (threaded)                  syz-fuzzer
100109                   S       uwait   0xfffffe0058854080  syz-fuzzer
100123                   S       uwait   0xfffffe0057599380  syz-fuzzer
100124                   S       kqread  0xfffffe009e3c3e00  syz-fuzzer
100125                   S       uwait   0xfffffe0058850e00  syz-fuzzer
100126                   S       uwait   0xfffffe0058850a00  syz-fuzzer
100127                   S       uwait   0xfffffe0058850900  syz-fuzzer
100128                   S       uwait   0xfffffe0058850800  syz-fuzzer
100129                   S       uwait   0xfffffe0058850d00  syz-fuzzer
100182                   S       uwait   0xfffffe005884c800  syz-fuzzer
  778   776   778     0  Ss      pause   0xfffffe00589685e8  csh
  776   694   776     0  Ss      select  0xfffffe009e41f7c0  sshd
  760     1   760     0  Ss+     ttyin   0xfffffe005700f8b0  getty
  759     1   759     0  Ss+     ttyin   0xfffffe00575f48b0  getty
  758     1   758     0  Ss+     ttyin   0xfffffe00575f10b0  getty
  757     1   757     0  Ss+     ttyin   0xfffffe00575f18b0  getty
  756     1   756     0  Ss+     ttyin   0xfffffe00575ed0b0  getty
  755     1   755     0  Ss+     ttyin   0xfffffe00575ed8b0  getty
  754     1   754     0  Ss+     ttyin   0xfffffe00575e70b0  getty
  753     1   753     0  Ss+     ttyin   0xfffffe00575e78b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe005757b0b0  getty
  698     1   698     0  Ss      nanslp  0xffffffff8405e580  cron
  694     1   694     0  Ss      select  0xfffffe009e41f940  sshd
  507     1   507     0  Ss      select  0xfffffe009e41fa40  syslogd
  436     1   436     0  Ss      wait    0xfffffe0058b7ca70  devd
  435     1   435    65  Ss      select  0xfffffe009e41fac0  dhclient
  350     1   350     0  Ss      select  0xfffffe005887c240  dhclient
  347     1   347     0  Ss      select  0xfffffe005887c140  dhclient
   23     0     0     0  DL      syncer  0xffffffff84186960  [syncer]
   22     0     0     0  DL      vlruwt  0xfffffe005877ca70  [vnlru]
   21     0     0     0  DL      (threaded)                  [bufdaemon]
100085                   D       qsleep  0xffffffff84184660  [bufdaemon]
100088                   D       -       0xffffffff83411f80  [bufspacedaemon-0]
100101                   D       sdflush 0xfffffe005754c4e8  [/ worker]
   20     0     0     0  DL      psleep  0xffffffff841bcb80  [vmdaemon]
   19     0     0     0  DL      (threaded)                  [pagedaemon]
100083                   D       psleep  0xffffffff841b06b8  [dom0]
100089                   D       launds  0xffffffff841b06c4  [laundry: dom0]
100090                   D       umarcl  0xffffffff81eb5cf0  [uma]
   18     0     0     0  DL      -       0xffffffff83e14ba0  [rand_harvestq]
   17     0     0     0  DL      waiting 0xffffffff849da6e0  [sctp_iterator]
   16     0     0     0  DL      pftm    0xffffffff84d172f0  [pf purge]
   15     0     0     0  DL      -       0xffffffff8417f880  [soaiod4]
    9     0     0     0  DL      -       0xffffffff8417f880  [soaiod3]
    8     0     0     0  DL      -       0xffffffff8417f880  [soaiod2]
    7     0     0     0  DL      -       0xffffffff8417f880  [soaiod1]
    6     0     0     0  DL      (threaded)                  [cam]
100048                   D       -       0xffffffff83c9a3c0  [doneq0]
100049                   D       -       0xffffffff83c9a340  [async]
100082                   D       -       0xffffffff83c9a1c0  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0056ac6888  [sequencer 00]
    5     0     0     0  DL      crypto_ 0xfffffe0053e06880  [crypto returns 1]
    4     0     0     0  DL      crypto_ 0xfffffe0053e06830  [crypto returns 0]
    3     0     0     0  DL      crypto_ 0xffffffff841aa760  [crypto]
   13     0     0     0  DL      (threaded)                  [geom]
100039                   D       -       0xffffffff84031a80  [g_event]
100040                   D       -       0xffffffff84031ac0  [g_up]
100041                   D       -       0xffffffff84031b00  [g_down]
    2     0     0     0  DL      (threaded)                  [KTLS]
100029                   D       -       0xfffffe0053df9b00  [thr_0]
100030                   D       -       0xfffffe0053df9b80  [thr_1]
100031                   D       -       0xffffffff84180c08  [alloc_0]
   12     0     0     0  WL      (threaded)                  [intr]
100011                   I                                   [swi6: task queue]
100012                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100032                   I                                   [swi1: netisr 0]
100033                   I                                   [swi3: vm]
100034                   I                                   [swi4: clock (0)]
100035                   I                                   [swi4: clock (1)]
100036                   I                                   [swi1: hpts]
100037                   I                                   [swi1: hpts]
100050                   I                                   [irq24: virtio_pci0]
100051                   I                                   [irq25: virtio_pci0]
100052                   I                                   [irq26: virtio_pci0]
100053                   I                                   [irq27: virtio_pci0]
100054                   I                                   [irq28: virtio_pci1]
100055                   I                                   [irq29: virtio_pci1]
100056                   I                                   [irq30: virtio_pci1]
100057                   I                                   [irq31: virtio_pci1]
100058                   I                                   [irq32: virtio_pci1]
100063                   I                                   [irq10: virtio_pci2]
100065                   I                                   [irq1: atkbd0]
100066                   I                                   [irq12: psm0]
100067                   I                                   [swi0: uart uart++]
100075                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   Run     CPU 1                       [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe0053d59538  [init]
   10     0     0     0  DL      audit_w 0xffffffff841ab700  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff84032980  [swapper]
100005                   D       -       0xfffffe0053df2e00  [softirq_0]
100006                   D       -       0xfffffe0053df2d00  [softirq_1]
100007                   D       -       0xfffffe0053df2c00  [if_io_tqg_0]
100008                   D       -       0xfffffe0053df2b00  [if_io_tqg_1]
100009                   D       -       0xfffffe0053df2a00  [if_config_tqg_0]
100010                   D       -       0xfffffe0053df2900  [deferred_unmount ta]
100013                   D       -       0xfffffe0053df2600  [thread taskq]
100015                   D       -       0xfffffe0053df2400  [linuxkpi_irq_wq]
100016                   D       -       0xfffffe0053df2300  [kqueue_ctx taskq]
100017                   D       -       0xfffffe0053df2200  [pci_hp taskq]
100018                   D       -       0xfffffe0053df2100  [aiod_kick taskq]
100019                   D       -       0xfffffe0053df2000  [inm_free taskq]
100020                   D       -       0xfffffe0053e06e00  [in6m_free taskq]
100021                   D       -       0xfffffe0053e06d00  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe0053e06d00  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe0053e06d00  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe0053e06d00  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe0053e06c00  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe0053e06c00  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe0053e06c00  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe0053e06c00  [linuxkpi_long_wq_3]
100038                   D       -       0xfffffe0053e06b00  [firmware taskq]
100042                   D       -       0xfffffe0053e06900  [crypto_0]
100043                   D       -       0xfffffe0053e06900  [crypto_1]
100059                   D       -       0xfffffe0053e06600  [vtnet0 rxq 0]
100060                   D       -       0xfffffe0053e06500  [vtnet0 txq 0]
100061                   D       -       0xfffffe0053e06400  [vtnet0 rxq 1]
100062                   D       -       0xfffffe0053e06300  [vtnet0 txq 1]
100064                   D       vtbslp  0xfffffe0056ff6e80  [virtio_balloon]
100068                   D       -       0xfffffe0053e06200  [mca taskq]
100073                   D       -       0xffffffff82c89c80  [deadlkres]
100077                   D       -       0xfffffe00575e0c00  [acpi_task_0]
100078                   D       -       0xfffffe00575e0c00  [acpi_task_1]
100079                   D       -       0xfffffe00575e0c00  [acpi_task_2]
100081                   D       -       0xfffffe0053e06700  [CAM taskq]
db> show all locks
Process 6311 (syz-executor.1) thread 0xfffffe009eac9740 (100914)
exclusive rm in6_ifaddr_lock (in6_ifaddr_lock) r = 0 (0xffffffff841a69a0) locked @ /syzkaller/managers/i386/kernel/sys/netinet6/in6.c:1403
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
            devbuf         4213         4323K         4241
          tcp_hpts            6         3201K            6
         sysctloid        35175         2072K        35246
             vtbuf           24         1968K           46
           pf_rule          842         1467K          888
              kobj          326         1304K          483
            newblk            9         1026K         5982
          vfscache            3         1025K            3
               pcb          428          987K         8120
          inodedep           22          520K         5391
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
           subproc          150          292K         6410
              vmem            3          274K            5
         sctp_stro          200          200K         1425
            acpica         1674          184K        55237
         vnet_data            1          168K            1
         sctp_atcl          400          150K         5000
           tidhash            3          141K            3
            linker          355          140K          383
           pagedep            9          130K         5314
        tfo_ccache            1          128K            1
            DEVFS1          108          108K          128
               sem            4          106K            4
          filedesc           14          105K        10626
               bus          986           80K         3474
          mtx_pool            2           72K            2
               BPF           38           71K           49
          syncache            1           68K            1
          acpitask            1           64K            1
       ddb_capture            1           64K            1
            module          509           64K          509
              umtx          374           47K          374
           kdtrace          228           45K        12349
              temp           34           33K         4113
         hostcache            1           32K            1
               shm            1           32K            2
            DEVFS3          127           32K          138
               msg            4           30K            4
        gtaskqueue           18           26K           18
         sctp_atky          600           25K         6685
            kbdmux            6           22K            6
        DEVFS_RULE           56           20K           56
            ifaddr           69           20K           83
          routetbl          203           19K          756
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           99           16K           99
            bus-sc           34           15K         1691
         sctp_timw           56           14K           56
            KTRACE          100           13K          100
             ifnet            7           13K            8
           lltable           39           12K           60
              kenv           95           12K           95
      eventhandler          133           12K          133
       ether_multi          129           11K          195
         CAM queue            5           11K         1528
              GEOM           61           10K          487
              rman           84           10K          425
         bmsafemap            3            9K         5359
              UART           12            9K           12
           devstat            4            9K            4
              ksem            1            8K            6
               rpc            2            8K            2
             shmfd            1            8K            1
       pfs_vncache            1            8K            1
         in6_multi           61            8K           81
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          295
         taskqueue           63            7K           63
            kqueue           67            7K         6333
         sctp_athm          400            7K         5032
          sctp_map          400            7K         2850
              cred           25            7K          741
            sglist            5            7K            5
           CAM DEV            3            6K          510
            plimit           23            6K          424
       ufs_dirhash           24            5K           24
               UMA          270            5K          270
            DEVFSP           69            5K          529
          pf_ifnet           10            5K           24
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
           session           32            4K           50
             evdev            4            4K            4
           pwddesc           64            4K         6325
           acpisem           28            4K           28
          kcovinfo           55            4K           85
             hhook           15            4K           17
             lockf           30            4K           55
            dirrem           12            3K         5306
         proc-args           52            3K          703
             selfd           45            3K        91642
          terminal           11            3K           11
           uidinfo            3            3K            8
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
            select           16            2K           79
            Unitno           29            2K           53
            ip6ndp           11            2K           17
           CAM XPT           22            2K          543
          sctp_ifa           12            2K           17
       ipsecpolicy            2            2K            2
          in_multi            5            2K            9
           acpidev           20            2K           20
               msi            9            2K            9
             clone            9            2K            9
               tun            7            2K            8
          freework            5            2K         5307
           softdep            1            1K            1
          freefile            8            1K         5299
          freeblks            4            1K         5306
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           34
      NFSD session            1            1K            1
        CAM periph            4            1K          271
             ipsec            3            1K            3
               mld            6            1K            7
              igmp            6            1K            7
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
          sctp_ifn            5            1K           17
             mkdir            5            1K        10588
            crypto            4            1K            4
 encap_export_host           12            1K           12
       inpcbpolicy           17            1K         2326
              pfil            4            1K            4
          procdesc            4            1K           18
              cdev            2            1K            2
               osd            9            1K         1277
         newdirblk            3            1K         5294
            diradd            3            1K         5341
    chacha20random            1            1K            1
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
            vnodes            1            1K            1
           CAM SIM            2            1K            2
              ktls            1            1K            1
            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K            6
            prison            6            1K            6
       lkpikmalloc            5            1K            6
        aesni_data            2            1K            2
           tcp_fsb            1            1K          685
          nexusdev            8            1K            8
            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
             xform            2            1K          502
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
            soname            5            1K         9954
          pmchooks            1            1K            1
          sctp_vrf            1            1K            1
              vnet            1            1K            1
           entropy            2            1K           43
          acpiintr            1            1K            1
               pmc            1            1K            1
          filecaps            4            1K          112
              cpus            2            1K            2
    vnet_data_free            1            1K            1
           Per-cpu            1            1K            1
          p1003.1b            1            1K            1
        dctcp data            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     980      943182       0     254   38092800        0
              pbuf   2624       0     973           0       0       2    2553152        0
              mbuf    256    8877     693     1499440       0     254    2449920        0
           tcp_log    416     166    5081       60720       0     254    2182752        0
          BUF TRIE    144     197   11563         786       0      62    1693440        0
        RADIX NODE    144   11050     257      187616       0      62    1628208        0
        malloc-384    384    4151       9        4151       0      30    1597440        0
       malloc-2048   2048     729       5         871       0       8    1503232        0
        malloc-128    128   11637      19       15131       0     126    1491968        0
       malloc-4096   4096     344       4        1136       0       2    1425408        0
       UMA Slabs 0    112   11018      31       11018       0     126    1237488        0
      mbuf_cluster   2048     585       1         585       0     254    1200128        0
         vmem btag     56   18063     128       18063       0     254    1018696        0
         FFS inode   1160     515      24        5814       0       8     625240        0
      malloc-65536  65536       6       2          14       0       1     524288        0
         sctp_asoc   2288     200      20        1425       0     254     503360        0
        malloc-384    384      41    1179        5410       0      30     468480        0
       malloc-2048   2048     203      19        3546       0       8     454656        0
        256 Bucket   2048     181      19       18060       0       8     409600        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
         VM OBJECT    264    1251     129       91148       0      30     364320        0
        malloc-256    256     206    1189        5830       0      62     357120        0
            THREAD   1808     162      25        6023       0       8     338096        0
        malloc-256    256       9    1281       10578       0      62     330240        0
       malloc-4096   4096      68       9       12737       0       2     315392        0
    ertt_txseginfo     40       0    7777       43627       0     254     311080        0
           sctp_ep   1272     200      31        3543       0     254     293832        0
             VNODE    448     553      68        5855       0      30     278208        0
         malloc-64     64    4006     152       16887       0     254     266112        0
      malloc-16384  16384       9       7        5313       0       1     262144        0
        malloc-128    128     738    1215        7669       0     126     249984        0
         malloc-16     16   14570     430       19824       0     254     240000        0
       malloc-1024   1024     210      18        1943       0      16     233472        0
            DEVCTL   1024       8     212         172       0       0     225280        0
       tcp_bbr_map    128       0    1705        7661       0     126     218240        0
      malloc-65536  65536       1       2         137       0       1     196608        0
         MAP ENTRY     96    1559     457      334641       0     126     193536        0
         UMA Zones    768     242       2         242       0      16     187392        0
         malloc-32     32    5613     183        9607       0     254     185472        0
            socket    960      38     146        7360       0     254     176640        0
        malloc-384    384     402      48        5002       0      30     172800        0
     FPU_save_area    832     164      43       11407       0      16     172224        0
        sctp_raddr    736     200      31        1585       0     254     170016        0
        malloc-128    128    1272      30       26869       0     126     166656        0
       mbuf_packet    256      63     522        7181       0     254     149760        0
       malloc-1024   1024     135       5         159       0      16     143360        0
       S VFS Cache    104    1012     353        7621       0     126     141960        0
       FFS2 dinode    256     515      25        5814       0      62     138240        0
      malloc-65536  65536       0       2           6       0       1     131072        0
      malloc-65536  65536       0       2         204       0       1     131072        0
      malloc-65536  65536       2       0           2       0       1     131072        0
           VMSPACE   2544      38      13        6305       0       4     129744        0
          ksiginfo    112      69     975        5488       0     126     116928        0
              PROC   1336      64      20        6324       0       8     112224        0
        128 Bucket   1024      70      29        1296       0      16     101376        0
         filedesc0   1072      65      26        6325       0       8      97552        0
        malloc-256    256     231     129       18371       0      62      92160        0
            pcpu-8      8   10500     764       11620       0     254      90112        0
          UMA Kegs    384     227       6         227       0      30      89472        0
        malloc-256    256     290      40        9610       0      62      84480        0
            clpbuf   2624       0      32          23       0      16      83968        0
        malloc-128    128     510     110       11453       0     126      79360        0
         64 Bucket    512     109      35        6676       0      30      73728        0
             g_bio    408       0     180        6316       0      30      73440        0
      malloc-32768  32768       2       0           2       0       1      65536        0
      malloc-32768  32768       0       2         130       0       1      65536        0
      malloc-16384  16384       3       1          18       0       1      65536        0
         tcp_inpcb    496       5     123        1266       0     254      63488        0
       malloc-4096   4096      12       3          16       0       2      61440        0
        malloc-384    384     138      12         180       0      30      57600        0
         malloc-64     64     411     471       92572       0     254      56448        0
         32 Bucket    256      96     114       11907       0      62      53760        0
             tcpcb   1096       5      44        1266       0     254      53704        0
       malloc-4096   4096      12       1          23       0       2      53248        0
        malloc-128    128     301     102       11621       0     126      51584        0
       malloc-8192   8192       4       2          32       0       1      49152        0
       malloc-8192   8192       4       2           6       0       1      49152        0
       malloc-2048   2048       3      21         510       0       8      49152        0
         malloc-64     64     618     138       17955       0     254      48384        0
       malloc-2048   2048       0      22         573       0       8      45056        0
           DIRHASH   1024      34       6          34       0      16      40960        0
       malloc-8192   8192       5       0           5       0       1      40960        0
       malloc-8192   8192       5       0           5       0       1      40960        0
             NAMEI   1024       0      36       40392       0      16      36864        0
         malloc-64     64     208     359        2992       0     254      36288        0
             Files     80     208     242       22244       0     126      36000        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       0       2         160       0       1      32768        0
       malloc-2048   2048      14       2          17       0       8      32768        0
           pcpu-64     64     487      25         487       0     254      32768        0
         malloc-64     64     444      60         634       0     254      32256        0
     udplite_inpcb    496       1      63         802       0     254      31744        0
        malloc-256    256      63      57         381       0      62      30720        0
      tcp_rack_pcb    832       1      35         685       0      16      29952        0
         TURNSTILE    136     188      22         188       0      62      28560        0
             KNOTE    160      22     153       79249       0      62      28000        0
            da_ccb    544       0      49        1699       0      16      26656        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-4096   4096       2       4          13       0       2      24576        0
       malloc-1024   1024       2      22          41       0      16      24576        0
               PWD     32      18     738        5386       0     254      24192        0
         malloc-32     32     411     345        5717       0     254      24192        0
            ttyinq    160     135      15         300       0      62      24000        0
          8 Bucket     80      47     253        2680       0     126      24000        0
           ttyoutq    256      72      18         160       0      62      23040        0
        malloc-256    256      78      12         190       0      62      23040        0
       tcp_bbr_pcb    832       0      27         281       0      16      22464        0
              pipe    744      19      11         414       0      16      22320        0
       malloc-2048   2048       8       2         134       0       8      20480        0
        SLEEPQUEUE     88     188      36         188       0     126      19712        0
       Mountpoints   2752       2       5           2       0       4      19264        0
        malloc-256    256      53      22         988       0      62      19200        0
      malloc-16384  16384       1       0           1       0       1      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       1       1         102       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-1024   1024       5      11        1267       0      16      16384        0
       malloc-1024   1024      10       6         169       0      16      16384        0
        malloc-512    512       2      30         119       0      30      16384        0
sctp_stream_msg_out    112     110      34         212       0     254      16128        0
         16 Bucket    144      56      56         442       0      62      16128        0
      vtnet_tx_hdr     24       0     668      473420       0     254      16032        0
        sctp_chunk    152      95       9         255       0     254      15808        0
        malloc-384    384      18      22         780       0      30      15360        0
        malloc-384    384      23      17          32       0      30      15360        0
        malloc-256    256      20      40        5847       0      62      15360        0
       malloc-2048   2048       2       4          43       0       8      12288        0
       malloc-2048   2048       2       4         193       0       8      12288        0
      tcp_rack_map    112       2     106        1332       0     126      12096        0
         malloc-64     64     105      84        7145       0     254      12096        0
         malloc-32     32     189     189        1527       0     254      12096        0
         malloc-32     32     125     253        5537       0     254      12096        0
         malloc-16     16     455     295        3379       0     254      12000        0
         malloc-16     16     416     334        5085       0     254      12000        0
         udp_inpcb    496       7      17         231       0     254      11904        0
        malloc-128    128      58      35          93       0     126      11904        0
              kenv    258      15      30        1042       0      30      11610        0
     routing nhops    256      23      22          39       0      62      11520        0
             unpcb    256      17      28        1450       0     254      11520        0
       malloc-8192   8192       1       0           1       0       1       8192        0
       malloc-4096   4096       0       2           4       0       2       8192        0
       malloc-4096   4096       1       1           4       0       2       8192        0
       malloc-1024   1024       4       4          31       0      16       8192        0
        malloc-512    512       2      14          63       0      30       8192        0
        malloc-512    512       9       7           9       0      30       8192        0
        malloc-512    512      10       6          73       0      30       8192        0
        malloc-512    512       0      16          64       0      30       8192        0
           rtentry    176      27      19          39       0      62       8096        0
              PGRP     88      32      60          52       0     126       8096        0
          rl_entry     40      53     149          53       0     254       8080        0
        sctp_laddr     48       0     168        1131       0     254       8064        0
             udpcb     32       8     244        1033       0     254       8064        0
              AIOP     32       4     248           4       0     254       8064        0
              ertt     72       5     107        1266       0     126       8064        0
         malloc-64     64      68      58         113       0     254       8064        0
         malloc-64     64      38      88          49       0     254       8064        0
         malloc-32     32      41     211          79       0     254       8064        0
         malloc-32     32      34     218         746       0     254       8064        0
         malloc-32     32      38     214        2757       0     254       8064        0
          4 Bucket     48       8     160         176       0     254       8064        0
          2 Bucket     32      56     196        1149       0     254       8064        0
         malloc-16     16      20     480        2926       0     254       8000        0
         malloc-16     16     288     212         518       0     254       8000        0
         malloc-16     16     194     306        1419       0     254       8000        0
         malloc-16     16      24     476       28529       0     254       8000        0
             ripcb    496       4      12          27       0     254       7936        0
        malloc-128    128      24      38         125       0     126       7936        0
        malloc-128    128       2      60          24       0     126       7936        0
               AIO    208       0      38         202       0      62       7904        0
             AIOCB    552       0      14         193       0      16       7728        0
        malloc-384    384      11       9          11       0      30       7680        0
        malloc-384    384       1      19         341       0      30       7680        0
            AIOLIO    272       0      28         203       0      30       7616        0
            cpuset    104       8      54           8       0     126       6448        0
 epoch_record pcpu    256       4      12           4       0      62       4096        0
       malloc-1024   1024       4       0           4       0      16       4096        0
        malloc-512    512       5       3           6       0      30       4096        0
           pcpu-16     16       7     249           7       0     254       4096        0
           pf tags    104       2      37           2       0     126       4056        0
         hostcache     64       1      62           1       0     254       4032        0
          syncache    168       0      24           4       0     254       4032        0
         malloc-32     32      80      46          80       0     254       4032        0
         malloc-16     16      10     240          10       0     254       4000        0
        sctp_readq    152       0      26          45       0     254       3952        0
       UMA Slabs 1    176      21       1          21       0      62       3872        0
            mqnode    416       3       6           3       0      30       3744        0
        KMAP ENTRY     96      12      27          14       0       0       3744        0
              vmem   1856       1       1           1       0       8       3712        0
           SMR CPU     32       3      60           3       0     254       2016        0
        SMR SHARED     24       3      60           3       0     254       1512        0
       FFS1 dinode    128       0       0           0       0     126          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   sctp_asconf_ack     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0      62          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    312       0       0           0       0     254          0        0
          pf mtags     48       0       0           0       0     254          0        0
      tcp_log_node    120       0       0           0       0     126          0        0
    tcp_log_bucket    176       0       0           0       0      62          0        0
          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
           NCLNODE    592       0       0           0       0      16          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
      ktls_session    192       0       0           0       0      62          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
         domainset     40       0       0           0       0     254          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       0       0           0       0       1          0        0
      malloc-16384  16384       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
           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
2021/10/04 02:09 freebsd-src 248682a58915 db0f5787 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in6_unlink_ifa
* Struck through repros no longer work on HEAD.