syzbot


Fatal trap NUM: page fault in in6_selecthlim

Status: auto-obsoleted due to no activity on 2022/12/30 19:04
Reported-by: syzbot+bb8b9f9b97070b1c771d@syzkaller.appspotmail.com
First crash: 960d, last: 597d
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd Fatal trap NUM: page fault in in6_selecthlim (2) 1 380d 380d 0/2 auto-obsoleted due to no activity on 2023/08/04 21:42
freebsd Fatal trap NUM: page fault in in6_selecthlim (3) 93 23h29m 179d 0/2 upstream: reported on 2023/11/23 17:01

Sample crash report:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0x10
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff81b61977
stack pointer	        = 0x0:0xfffffe0053eac620
frame pointer	        = 0x0:0xfffffe0053eac6d0
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 2 (clock (0))
rdi:               10 rsi:             ffff rdx:             ffff
rcx: fffffe00033eee30  r8:                0  r9:      20000000000
rax: fffffe00033eee30 rbx:                0 rbp: fffffe0053eac6d0
r10:                0 r11:           72e600 r12: 1fffffc00a7d58c4
r13: dffff7c000000000 r14: fffffe00578da800 r15: fffffe009966b970
trap number		= 12
panic: page fault
cpuid = 0
time = 1664651045
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc7/frame 0xfffffe0053eabe10
kdb_backtrace() at kdb_backtrace+0xd3/frame 0xfffffe0053eabf70
vpanic() at vpanic+0x254/frame 0xfffffe0053eac050
panic() at panic+0xb5/frame 0xfffffe0053eac110
trap_fatal() at trap_fatal+0x7ed/frame 0xfffffe0053eac230
trap_pfault() at trap_pfault+0x182/frame 0xfffffe0053eac370
trap() at trap+0x5e1/frame 0xfffffe0053eac550
calltrap() at calltrap+0x8/frame 0xfffffe0053eac550
--- trap 0xc, rip = 0xffffffff81b61977, rsp = 0xfffffe0053eac620, rbp = 0xfffffe0053eac6d0 ---
in6_selecthlim() at in6_selecthlim+0xd7/frame 0xfffffe0053eac6d0
sctp_lowlevel_chunk_output() at sctp_lowlevel_chunk_output+0x1dee/frame 0xfffffe0053eac980
sctp_send_abort_tcb() at sctp_send_abort_tcb+0x542/frame 0xfffffe0053eaca80
sctp_abort_an_association() at sctp_abort_an_association+0xb8/frame 0xfffffe0053eacad0
sctp_threshold_management() at sctp_threshold_management+0x440/frame 0xfffffe0053eacb20
sctp_t1init_timer() at sctp_t1init_timer+0xa9/frame 0xfffffe0053eacb70
sctp_timeout_handler() at sctp_timeout_handler+0x6e6/frame 0xfffffe0053eaccb0
softclock_call_cc() at softclock_call_cc+0x3d7/frame 0xfffffe0053eace80
softclock_thread() at softclock_thread+0x1ff/frame 0xfffffe0053eacef0
fork_exit() at fork_exit+0xd0/frame 0xfffffe0053eacf30
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0053eacf30
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 2 tid 100029 ]
Stopped at      kdb_enter+0x6b: movq    $0,0x276799a(%rip)
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                           0
rax                       0x12
rcx         0xffffffff8172fb96  printf+0xf6
rdx                        0x1
rbx                          0
rsp         0xfffffe0053eabf50
rbp         0xfffffe0053eabf70
rsi                          0
rdi         0xffffffff8172fbf8  printf+0x158
r8                           0
r9                  0xffffffff
r10                          0
r11                   0x72e600
r12                          0
r13         0xfffffe0007aae3a0
r14         0xffffffff82b77440  .str.26
r15         0xffffffff82b77440  .str.26
rip         0xffffffff8171f7fb  kdb_enter+0x6b
rflags                    0x46
kdb_enter+0x6b: movq    $0,0x276799a(%rip)
db> show proc
Process 2 (clock) at 0xfffffe00541e1008:
 state: NORMAL
 uid: 0  gids: 0
 parent: pid 0 at 0xffffffff83e2a7e0
 ABI: null
 flag: 0x10000284  flag2: 0
 reaper: 0xffffffff83e2a7e0 reapsubtree: 2
 sigparent: 20
 vmspace: 0xffffffff83e2b780
   (map 0xffffffff83e2b780)
   (map.pmap 0xffffffff83e2b840)
   (pmap 0xffffffff83e2b8b0)
 threads: 2
100029                   Run     CPU 0                       [clock (0)]
100030                   Run     CPU 1                       [clock (1)]
db> ps
  pid  ppid  pgrp   uid  state   wmesg   wchan               cmd
 5848  5846   430     0  S       piperd  0xfffffe0058b8c5b0  sh
 5847  5846   430     0  R                                   sh
 5846  5789   430     0  S       wait    0xfffffe009265bac0  sh
 5843  5780  5780     0  R       (threaded)                  syz-executor.2
100093                   RunQ                                syz-executor.2
106677                   RunQ                                syz-executor.2
 5841  5796  5796     0  R       (threaded)                  syz-executor.1
100304                   RunQ                                syz-executor.1
106676                   S       uwait   0xfffffe00996d6100  syz-executor.1
 5796   774  5796     0  Rs                                  syz-executor.1
 5789  5783   430     0  S       piperd  0xfffffe0058b673e8  sh
 5783   430   430     0  S       wait    0xfffffe0092659ab0  sh
 5780   774  5780     0  Rs                                  syz-executor.2
 5679     1   776     0  S       uwait   0xfffffe005730f800  syz-executor.0
 5675     1   776     0  S       uwait   0xfffffe005730ec00  syz-executor.0
 5670     1   776     0  S       uwait   0xfffffe00996d6300  syz-executor.0
 5665     1   776     0  S       uwait   0xfffffe005730f600  syz-executor.0
 5660     1   776     0  S       uwait   0xfffffe005730f300  syz-executor.0
 5655     1   776     0  S       uwait   0xfffffe00996d5600  syz-executor.0
 5650     1   776     0  S       uwait   0xfffffe005730fd00  syz-executor.0
 5642     1   776     0  S       uwait   0xfffffe00541ed600  syz-executor.0
 5051     1   776     0  S       uwait   0xfffffe0057878200  syz-executor.0
 5049     1   776     0  S       uwait   0xfffffe005730d100  syz-executor.0
 5047     1   776     0  S       uwait   0xfffffe00541ed400  syz-executor.0
 5044     1   776     0  S       uwait   0xfffffe0057876880  syz-executor.0
 5040     1   776     0  S       uwait   0xfffffe00996d5800  syz-executor.0
 5038     1   776     0  S       uwait   0xfffffe00541ed100  syz-executor.0
 5035     1   776     0  S       uwait   0xfffffe005730fb00  syz-executor.0
 4725     1   804     0  S       uwait   0xfffffe00996d4e80  syz-executor.3
 4320     1  4320    65  Ss      select  0xfffffe009a4cbac0  dhclient
 3492     1  3492     0  Ss      select  0xfffffe0057866140  dhclient
 3482     1  3482     0  Ss      select  0xfffffe0057862e40  dhclient
 3277     1   804     0  S       uwait   0xfffffe0057876280  syz-executor.3
 3272     1   804     0  S       uwait   0xfffffe0057876180  syz-executor.3
 3267     1   804     0  S       uwait   0xfffffe005730f700  syz-executor.3
 3263     1   804     0  S       uwait   0xfffffe0057876980  syz-executor.3
 3157     0     0     0  DL      -       0xffffffff83f74500  [soaiod4]
 3156     0     0     0  DL      -       0xffffffff83f74500  [soaiod3]
 3155     0     0     0  DL      -       0xffffffff83f74500  [soaiod2]
 3154     0     0     0  DL      -       0xffffffff83f74500  [soaiod1]
 2872     1   776     0  S       uwait   0xfffffe0057878400  syz-executor.0
 1990     1  1990    65  Ss      select  0xfffffe0057866ac0  dhclient
 1881     1   804     0  S       uwait   0xfffffe0057877b80  syz-executor.3
 1144     1  1144     0  Ss      select  0xfffffe0057866c40  dhclient
 1141     1  1141     0  Ss      select  0xfffffe00578669c0  dhclient
  851     0     0     0  DL      aiordy  0xfffffe0092745ab8  [aiod4]
  850     0     0     0  DL      aiordy  0xfffffe0092746010  [aiod3]
  849     0     0     0  DL      aiordy  0xfffffe0092746568  [aiod2]
  848     0     0     0  DL      aiordy  0xfffffe009265c018  [aiod1]
  774   772   772     0  R       (threaded)                  syz-fuzzer
100090                   S       wait    0xfffffe005797b010  syz-fuzzer
100120                   RunQ                                syz-fuzzer
100121                   S       uwait   0xfffffe005730db80  syz-fuzzer
100122                   S       uwait   0xfffffe005730dc80  syz-fuzzer
100123                   S       uwait   0xfffffe005730c780  syz-fuzzer
100124                   S       uwait   0xfffffe005730c880  syz-fuzzer
100125                   S       wait    0xfffffe005797b010  syz-fuzzer
100126                   S       uwait   0xfffffe0057876680  syz-fuzzer
100127                   RunQ                                syz-fuzzer
100134                   RunQ                                syz-fuzzer
100135                   S       uwait   0xfffffe005730fe00  syz-fuzzer
100169                   S       uwait   0xfffffe005730f500  syz-fuzzer
  772   770   772     0  Ss      pause   0xfffffe005797c620  csh
  770   688   770     0  Ss      select  0xfffffe00578679c0  sshd
  754     1   754     0  Rs+                                 getty
  753     1   753     0  Ss+     ttyin   0xfffffe00586290b0  getty
  752     1   752     0  Ss+     ttyin   0xfffffe00586294b0  getty
  751     1   751     0  Ss+     ttyin   0xfffffe00586298b0  getty
  750     1   750     0  Ss+     ttyin   0xfffffe0058629cb0  getty
  749     1   749     0  Ss+     ttyin   0xfffffe005862a0b0  getty
  748     1   748     0  Ss+     ttyin   0xfffffe005862a4b0  getty
  747     1   747     0  Ss+     ttyin   0xfffffe005862a8b0  getty
  746     1   746     0  Ss+     ttyin   0xfffffe005862acb0  getty
  692     1   692     0  Ss      nanslp  0xffffffff83e54941  cron
  688     1   688     0  Ss      select  0xfffffe0058b205c0  sshd
  501     1   501     0  Ss      select  0xfffffe0058b20540  syslogd
  430     1   430     0  Ss      wait    0xfffffe008fe26010  devd
  429     1   429    65  Ss      select  0xfffffe0058b20640  dhclient
  344     1   344     0  Ss      select  0xfffffe00578681c0  dhclient
  341     1   341     0  Ss      select  0xfffffe00578689c0  dhclient
   17     0     0     0  DL      vlruwt  0xfffffe00541e3570  [vnlru]
   16     0     0     0  RL                                  [syncer]
   15     0     0     0  RL      (threaded)                  [bufdaemon]
100079                   RunQ                                [bufdaemon]
100082                   D       -       0xffffffff83212100  [bufspacedaemon-0]
100094                   RunQ                                [/ worker]
    9     0     0     0  DL      psleep  0xffffffff83fabe80  [vmdaemon]
    8     0     0     0  RL      (threaded)                  [pagedaemon]
100077                   RunQ                                [dom0]
100080                   D       launds  0xffffffff83f9fd44  [laundry: dom0]
100081                   RunQ                                [uma]
    7     0     0     0  RL                                  [rand_harvestq]
    6     0     0     0  RL                                  [pf purge]
    5     0     0     0  DL      waiting 0xffffffff846a0f80  [sctp_iterator]
    4     0     0     0  DL      (threaded)                  [cam]
100044                   D       -       0xffffffff83ab3340  [doneq0]
100045                   D       -       0xffffffff83ab32c0  [async]
100076                   D       -       0xffffffff83ab3140  [scanner]
   14     0     0     0  DL      seqstat 0xfffffe0007ba7088  [sequencer 00]
    3     0     0     0  DL      (threaded)                  [crypto]
100040                   D       crypto_ 0xffffffff83f9b4a0  [crypto]
100041                   D       crypto_ 0xfffffe0054089930  [crypto returns 0]
100042                   D       crypto_ 0xfffffe0054089980  [crypto returns 1]
   13     0     0     0  DL      (threaded)                  [geom]
100035                   D       -       0xffffffff83e29dc0  [g_event]
100036                   D       -       0xffffffff83e29de0  [g_up]
100037                   D       -       0xffffffff83e29e00  [g_down]
    2     0     0     0  RL      (threaded)                  [clock]
100029                   Run     CPU 0                       [clock (0)]
100030                   Run     CPU 1                       [clock (1)]
   12     0     0     0  WL      (threaded)                  [intr]
100012                   I                                   [swi6: Giant taskq]
100014                   I                                   [swi5: fast taskq]
100017                   I                                   [swi6: task queue]
100031                   I                                   [swi1: netisr 0]
100032                   I                                   [swi1: hpts]
100033                   I                                   [swi1: hpts]
100046                   I                                   [irq24: virtio_pci0]
100047                   I                                   [irq25: virtio_pci0]
100048                   I                                   [irq26: virtio_pci0]
100049                   I                                   [irq27: virtio_pci0]
100050                   I                                   [irq28: virtio_pci1]
100051                   I                                   [irq29: virtio_pci1]
100052                   I                                   [irq30: virtio_pci1]
100053                   I                                   [irq31: virtio_pci1]
100054                   I                                   [irq32: virtio_pci1]
100059                   I                                   [irq33: virtio_pci2]
100060                   I                                   [irq34: virtio_pci2]
100061                   I                                   [irq35: virtio_pci2]
100063                   I                                   [irq1: atkbd0]
100064                   I                                   [irq12: psm0]
100065                   I                                   [swi0: uart uart++]
100069                   I                                   [swi1: pf send]
   11     0     0     0  RL      (threaded)                  [idle]
100003                   CanRun                              [idle: cpu0]
100004                   CanRun                              [idle: cpu1]
    1     0     1     0  SLs     wait    0xfffffe00541e2010  [init]
   10     0     0     0  DL      audit_w 0xffffffff83f9c040  [audit]
    0     0     0     0  DLs     (threaded)                  [kernel]
100000                   D       swapin  0xffffffff83e2a7e0  [swapper]
100005                   D       -       0xfffffe005408a000  [if_io_tqg_0]
100006                   D       -       0xfffffe0054089e00  [if_io_tqg_1]
100007                   D       -       0xfffffe0054089d00  [if_config_tqg_0]
100008                   D       -       0xfffffe0054089c00  [softirq_0]
100009                   D       -       0xfffffe0054089b00  [softirq_1]
100010                   D       -       0xfffffe00085ec000  [linuxkpi_irq_wq]
100011                   D       -       0xfffffe00085ebe00  [deferred_unmount ta]
100013                   D       -       0xfffffe00085ebc00  [thread taskq]
100015                   D       -       0xfffffe00085eba00  [kqueue_ctx taskq]
100016                   D       -       0xfffffe00085eb900  [pci_hp taskq]
100018                   D       -       0xfffffe00085eb700  [inm_free taskq]
100019                   D       -       0xfffffe00085eb600  [aiod_kick taskq]
100020                   D       -       0xfffffe00085eb500  [in6m_free taskq]
100021                   D       -       0xfffffe00085eb400  [linuxkpi_short_wq_0]
100022                   D       -       0xfffffe00085eb400  [linuxkpi_short_wq_1]
100023                   D       -       0xfffffe00085eb400  [linuxkpi_short_wq_2]
100024                   D       -       0xfffffe00085eb400  [linuxkpi_short_wq_3]
100025                   D       -       0xfffffe00085eb300  [linuxkpi_long_wq_0]
100026                   D       -       0xfffffe00085eb300  [linuxkpi_long_wq_1]
100027                   D       -       0xfffffe00085eb300  [linuxkpi_long_wq_2]
100028                   D       -       0xfffffe00085eb300  [linuxkpi_long_wq_3]
100034                   D       -       0xfffffe00085eb200  [firmware taskq]
100038                   D       -       0xfffffe00085eb100  [crypto_0]
100039                   D       -       0xfffffe00085eb100  [crypto_1]
100055                   D       -       0xfffffe00085ead00  [vtnet0 rxq 0]
100056                   D       -       0xfffffe00085eac00  [vtnet0 txq 0]
100057                   D       -       0xfffffe00085eab00  [vtnet0 rxq 1]
100058                   D       -       0xfffffe00085eaa00  [vtnet0 txq 1]
100062                   D       vtbslp  0xfffffe0056f4ef00  [virtio_balloon]
100066                   D       -       0xffffffff82b7d4e0  [deadlkres]
100071                   D       -       0xfffffe005790e200  [acpi_task_0]
100072                   D       -       0xfffffe005790e200  [acpi_task_1]
100073                   D       -       0xfffffe005790e200  [acpi_task_2]
100074                   D       -       0xfffffe00085ec100  [mca taskq]
100075                   D       -       0xfffffe00085eb000  [CAM taskq]
db> show all locks
Process 5847 (sh) thread 0xfffffe0099699000 (100311)
shared sx vm map (user) (vm map (user)) r = 0 (0xfffffe0092741460) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_map.c:4930
Process 5841 (syz-executor.1) thread 0xfffffe0096000720 (100304)
shared sx vm map (user) (vm map (user)) r = 0 (0xfffffe009273e060) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_map.c:4930
Process 774 (syz-fuzzer) thread 0xfffffe0092b86720 (100127)
shared rw vm object (vm object) r = 0 (0xfffffe0092bc6000) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_fault.c:1510
shared sx vm map (user) (vm map (user)) r = 0 (0xfffffe0092b82060) locked @ /syzkaller/managers/main/kernel/sys/vm/vm_map.c:4930
Process 16 (syncer) thread 0xfffffe005746a720 (100083)
exclusive rw bufobj interlock (bufobj interlock) r = 0 (0xfffffe009602c620) locked @ /syzkaller/managers/main/kernel/sys/ufs/ffs/ffs_vnops.c:295
exclusive lockmgr ufs (ufs) r = 0 (0xfffffe009602c5b0) locked @ /syzkaller/managers/main/kernel/sys/kern/vfs_subr.c:2637
Process 8 (pagedaemon) thread 0xfffffe005746bc80 (100077)
exclusive rw pmap pv list (pmap pv list) r = 0 (0xfffffe00077628c0) locked @ /syzkaller/managers/main/kernel/sys/amd64/amd64/pmap.c:8804
Process 6 (pf purge) thread 0xfffffe005786a000 (100068)
shared sx vnet_sxlock (vnet_sxlock) r = 0 (0xffffffff83f7d380) locked @ /syzkaller/managers/main/kernel/sys/netpfil/pf/pf.c:1842
exclusive sx pf end thread (pf end thread) r = 0 (0xffffffff84b8d8c0) locked @ /syzkaller/managers/main/kernel/sys/netpfil/pf/pf.c:1838
Process 2 (clock) thread 0xfffffe0007aae3a0 (100029)
exclusive sleep mutex sctp-tcb (tcb) r = 0 (0xfffffe0099602320) locked @ /syzkaller/managers/main/kernel/sys/netinet/sctputil.c:1777
db> show malloc
              Type        InUse        MemUse     Requests
           pf_hash            5        11524K            5
          tcp_hpts            7         4801K            7
            devbuf         4216         4323K         4244
         sysctloid        35217         2075K        35288
             vtbuf           24         1968K           46
              kobj          329         1316K          493
            newblk           58         1039K        19340
          vfscache            3         1025K            3
               pcb          175          710K        10772
          inodedep          119          557K         5432
         ufs_quota            1          512K            1
          vfs_hash            1          512K            1
           callout            2          512K            2
              intr            4          472K            4
          filedesc           54          425K         9631
           subproc          193          370K         5968
              vmem            3          274K            6
            acpica         1674          184K        58126
           tidhash            3          141K            3
           pagedep           21          133K         4767
            linker          351          133K          384
        tfo_ccache            1          128K            1
          IP reass            1          128K            1
         vnet_data            1          112K            1
            DEVFS1          109          109K          132
               sem            4          106K            4
               bus          998           82K         5213
         sctp_stro           75           75K         1998
          mtx_pool            2           72K            2
          syncache            1           68K            1
            module          515           65K          515
          acpitask            1           64K            1
       ddb_capture            1           64K            1
         sctp_atcl          152           57K         7660
               BPF           30           53K           49
              umtx          418           53K          418
           kdtrace          261           50K        12527
               shm            2           34K           56
              temp           35           33K         2935
            DEVFS3          128           32K          140
         hostcache            1           32K            1
               msg            4           30K            4
        gtaskqueue           18           26K           18
            dirrem           97           25K         5263
            kbdmux            6           22K            6
            ifaddr           72           21K           92
        DEVFS_RULE           56           20K           56
          routetbl          226           19K         1094
         ufs_mount            4           17K            5
              proc            3           17K            3
               tty           16           16K           16
           ithread           97           16K           97
            bus-sc           34           15K         1682
             ifnet            8           15K            9
           lltable           43           14K          216
       ether_multi          162           13K          266
            KTRACE          101           13K        11090
         sctp_timw           50           13K           50
      eventhandler          151           13K          151
              kenv           95           12K           95
          freefile           88           11K         5226
              rman           88           11K          431
              GEOM           61           11K          483
         CAM queue            5           11K         1528
         sctp_atky          227           10K        10205
         in6_multi           77           10K           97
              ksem            4           10K          147
            kqueue           90           10K         5891
         bmsafemap            2            9K         5603
              UART           12            9K           12
           devstat            4            9K            4
               rpc            2            8K            2
             shmfd            1            8K           20
       pfs_vncache            1            8K            1
          freework           31            8K        10724
         pfs_nodes           20            8K           20
     audit_evclass          237            8K          296
         taskqueue           63            7K           63
            sglist            5            7K            5
           CAM DEV            3            6K          510
              cred           24            6K          313
            plimit           22            6K          457
           pwddesc           82            6K         5869
          pf_ifnet           12            5K          138
       ufs_dirhash           24            5K           24
          freeblks           18            5K         5503
               UMA          271            5K          271
                vt           11            5K           11
           memdesc            1            4K            1
               MCA           32            4K           32
            DEVFSP           64            4K          503
             evdev            4            4K            4
           session           29            4K           80
         proc-args          105            4K         7276
           acpisem           28            4K           28
             hhook           15            4K           17
          kcovinfo           52            4K           78
             lockf           29            4K          320
           pf_osfp           25            3K           25
          terminal           11            3K           11
         sctp_athm          152            3K         7992
             selfd           38            3K        77134
          sctp_map          150            3K         3992
         newdirblk           18            3K         4741
             clone            9            3K            9
           uidinfo            3            3K           29
          sctp_ifa           17            3K           20
        local_apic            1            2K            1
           io_apic            1            2K            1
       fpukern_ctx            2            2K            2
         ipsec-saq            2            2K            2
            ip6ndp           12            2K           21
            Unitno           29            2K          201
            select           13            2K          131
           CAM XPT           22            2K          543
               msi           12            2K           12
             mkdir           12            2K         9482
          in_multi            6            2K           20
       ipsecpolicy            2            2K            2
           acpidev           20            2K           20
            CC Mem            9            2K         1647
               tun            7            2K            9
           softdep            1            1K            1
            sahead            1            1K            1
          secasvar            1            1K            1
             nhops            6            1K            8
       vnodemarker            2            1K           36
      NFSD session            1            1K            1
        CAM periph            4            1K          271
             ipsec            3            1K            3
          sctp_ifn            6            1K           20
            diradd            6            1K         5296
               mld            6            1K            8
              igmp            6            1K            8
         toponodes            6            1K            6
            isadev            6            1K            6
             mount           16            1K           89
          pci_link           10            1K           10
            crypto            4            1K          129
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              pfil            4            1K            4
              cdev            2            1K            2
               osd           13            1K         1638
         sctp_aadr            7            1K          112
        ip_msource            6            1K           51
    chacha20random            1            1K            1
          procdesc            3            1K           18
      NFSD lckfile            1            1K            1
     NFSD V4client            1            1K            1
             DEVFS            9            1K           10
          indirdep            1            1K         8085
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            feeder            7            1K            7
           tcpfunc            3            1K            3
        loginclass            3            1K            6
            prison            6            1K            6
       lkpikmalloc            5            1K            6
        aesni_data            2            1K            2
         cryptodev            2            1K          706
           tcp_fsb            1            1K          366
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            apmdev            1            1K            1
          atkbddev            2            1K            2
     CAM dev queue            2            1K            2
 CAM I/O Scheduler            1            1K            1
          CAM path            4            1K         1034
               aio            4            1K           11
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            soname            4            1K        10061
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              vnet            1            1K            1
           entropy            2            1K           48
               pmc            1            1K            1
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          filecaps            3            1K          129
              cpus            2            1K            2
    vnet_data_free            1            1K            1
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                ah            0            0K            0
          pf_table            0            0K           96
           pf_rule            0            0K           77
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            mqdata            0            0K            0
           filemon            0            0K           66
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        sctp_socko            0            0K         3498
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         sctp_stri            0            0K          678
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          savedino            0            0K         5224
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            statfs            0            0K         4926
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ag_tgt_map_t malloc            0            0K            0
ag_slr_map_t malloc            0            0K            0
lDevFlags * malloc            0            0K            0
tiDeviceHandle_t * malloc            0            0K            0
ag_portal_data_t malloc            0            0K            0
ag_device_t malloc            0            0K            0
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filedesc_to_leader            0            0K            0
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                ix            0            0K            0
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    tr_concat_data            0            0K            0
       md_sii_data            0            0K            0
   md_promise_data            0            0K            0
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   md_jmicron_data            0            0K            0
     md_intel_data            0            0K            0
       md_ddf_data            0            0K            0
         raid_data            0            0K           72
     geom_flashmap            0            0K            0
         tmpfs dir            0            0K            0
        tmpfs name            0            0K            0
       tmpfs mount            0            0K            0
           NFS FHA            0            0K            0
         newnfsmnt            0            0K            0
  newnfsclient_req            0            0K            0
db> show uma
              Zone   Size    Used    Free    Requests  Sleeps  Bucket  Total Mem    XFree
   mbuf_jumbo_page   4096    8320    1078      438743       0     254   38494208        0
              mbuf    256    8813    9235     2305613       0     254    4620288        0
           tcp_log    416       0   10422      331308       0     254    4335552        0
              pbuf   2624       0     794           0       0       2    2083456        0
          BUF TRIE    144     178   11582       12142       0      62    1693440        0
        malloc-384    384    4206      24        4208       0      30    1624320        0
        malloc-128    128   12135     234       22555       0     126    1583232        0
      mbuf_cluster   2048     762       0         762       0     254    1560576        0
       malloc-4096   4096     331       3        1120       0       2    1368064        0
        RADIX NODE    144    8711     356      146084       0      62    1305648        0
       UMA Slabs 0    112   11088      30       11088       0     126    1245216        0
         sctp_asoc   2256      75     435        1970       0     254    1150560        0
         vmem btag     56   20027     100       20027       0     254    1127112        0
    ertt_txseginfo     40   21028     586     1181012       0     254     864560        0
       tcp_bbr_map    128    3360    2840      277073       0     126     793600        0
        256 Bucket   2048     263      91        8679       0       8     724992        0
         VM OBJECT    264    2540     190      136798       0      30     720720        0
         FFS inode   1160     542      32        5769       0       8     665840        0
      malloc-16384  16384      30       8        4820       0       1     622592        0
           sctp_ep   1208      77     433        5331       0     254     616080        0
             tcpcb   1104       9     502        1627       0     254     564144        0
            socket    960      37     471        8830       0     254     487680        0
       malloc-4096   4096      95       9        5884       0       2     425984        0
         MAP ENTRY     96    3877     281      386245       0     126     399168        0
            lkpimm    168       1    2327           1       0      62     391104        0
          lkpicurr    168       2    2326           2       0      62     391104        0
            THREAD   1824     178      31        6677       0       8     381216        0
        sctp_raddr    736      75     442        2259       0     254     380512        0
       malloc-2048   2048      79      89        5366       0       8     344064        0
      malloc-65536  65536       0       5         339       0       1     327680        0
        sctp_chunk    152      67    1987       20466       0     254     312208        0
         malloc-64     64    4138     713       92880       0     254     310464        0
             VNODE    448     583      83        5814       0      30     298368        0
        malloc-384    384     295     395       13193       0      30     264960        0
      malloc-65536  65536       4       0           4       0       1     262144        0
      malloc-32768  32768       1       7        7662       0       1     262144        0
         malloc-16     16   14598     402       19036       0     254     240000        0
            DEVCTL   1024      13     207         180       0       0     225280        0
      malloc-65536  65536       1       2           5       0       1     196608        0
      malloc-65536  65536       3       0           3       0       1     196608        0
       mbuf_packet    256      37     725       23913       0     254     195072        0
        malloc-256    256     124     626       24459       0      62     192000        0
         UMA Zones    768     243       1         243       0      16     187392        0
     FPU_save_area    832     180      45       11950       0      16     187200        0
           VMSPACE   2560      57      15        5825       0       4     184320        0
         malloc-32     32    5298     372        5518       0     254     181440        0
        malloc-128    128    1207     188       29151       0     126     178560        0
        128 Bucket   1024      88      75        2843       0      16     166912        0
       malloc-1024   1024      82      78        2144       0      16     163840        0
       FFS2 dinode    256     542      88        5768       0      62     161280        0
              PROC   1368      81      29        5848       0       8     150480        0
       malloc-1024   1024     120      24         146       0      16     147456        0
       S VFS Cache    104    1058     346        6463       0     126     146016        0
        malloc-256    256     178     392       10896       0      62     145920        0
      malloc-65536  65536       1       1           9       0       1     131072        0
      malloc-65536  65536       0       2         136       0       1     131072        0
      malloc-32768  32768       0       4          14       0       1     131072        0
       malloc-4096   4096      23       9          36       0       2     131072        0
             unpcb    256      14     496        1420       0     254     130560        0
          ksiginfo    112      89     955        5484       0     126     116928        0
         filedesc0   1072      82      23        5869       0       8     112560        0
        malloc-256    256     213     222       16903       0      62     111360        0
        malloc-256    256      92     343        5755       0      62     111360        0
       malloc-2048   2048       6      42        1094       0       8      98304        0
             g_bio    408       0     240      114233       0      30      97920        0
        malloc-256    256     268     107        8359       0      62      96000        0
          UMA Kegs    384     229       4         229       0      30      89472        0
          syncache    168       0     528          11       0     254      88704        0
         64 Bucket    512     100      68        9121       0      30      86016        0
        malloc-128    128     494     157         817       0     126      83328        0
        sctp_readq    152       0     520         356       0     254      79040        0
         malloc-64     64     525     546         947       0     254      68544        0
         malloc-64     64     535     536        1633       0     254      68544        0
        malloc-128    128     121     406        8801       0     126      67456        0
        malloc-128    128     368     159         931       0     126      67456        0
      malloc-32768  32768       0       2         120       0       1      65536        0
       malloc-8192   8192       2       6          68       0       1      65536        0
       malloc-1024   1024      13      51         543       0      16      65536        0
         32 Bucket    256     101     154       16326       0      62      65280        0
sctp_stream_msg_out    112      16     524         511       0     254      60480        0
        malloc-384    384     114      36         363       0      30      57600        0
             ripcb    424       3     123         130       0      30      53424        0
         tcp_inpcb    424       9     117        1627       0      30      53424        0
         malloc-64     64     318     501       17951       0     254      52416        0
        malloc-128    128     222     181       10785       0     126      51584        0
        malloc-256    256      65     130        6211       0      62      49920        0
        malloc-256    256      56     139         152       0      62      49920        0
           DIRHASH   1024      35      13          35       0      16      49152        0
             NAMEI   1024       0      48       37886       0      16      49152        0
      malloc-16384  16384       3       0          17       0       1      49152        0
       malloc-2048   2048      15       9          20       0       8      49152        0
       malloc-2048   2048       6      18         213       0       8      49152        0
            da_ccb    544       0      84       28665       0      16      45696        0
            pcpu-8      8    4726     906        7808       0     254      45056        0
       tcp_bbr_pcb    832       4      50        1063       0      16      44928        0
             Files     80     199     351       23359       0     126      44000        0
            clpbuf   2624       0      16          43       0      16      41984        0
       malloc-8192   8192       4       1          30       0       1      40960        0
       malloc-8192   8192       4       1           5       0       1      40960        0
       malloc-8192   8192       3       2         106       0       1      40960        0
              pipe    728      19      36         526       0      16      40040        0
         udp_inpcb    424       6      84         251       0      30      38160        0
         malloc-64     64      22     545         533       0     254      36288        0
         malloc-64     64     148     419        6554       0     254      36288        0
         malloc-64     64       7     560         101       0     254      36288        0
         malloc-64     64     156     411        3213       0     254      36288        0
         16 Bucket    144      88     164        1367       0      62      36288        0
        malloc-128    128      51     228         258       0     126      35712        0
        malloc-128    128      65     214         324       0     126      35712        0
     routing nhops    256      28     107          44       0      62      34560        0
           ttyoutq    256      72      63         160       0      62      34560        0
        malloc-256    256      50      85        1176       0      62      34560        0
         TURNSTILE    136     210      42         210       0      62      34272        0
        SLEEPQUEUE     88     210     174         210       0     126      33792        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-32768  32768       1       0           1       0       1      32768        0
      malloc-16384  16384       0       2         160       0       1      32768        0
       malloc-8192   8192       4       0           4       0       1      32768        0
       malloc-2048   2048       4      12          28       0       8      32768        0
       malloc-2048   2048       1      15          51       0       8      32768        0
       malloc-2048   2048       1      15         485       0       8      32768        0
       malloc-2048   2048       2      14         289       0       8      32768        0
       malloc-1024   1024       2      30          43       0      16      32768        0
       malloc-1024   1024       6      26        1408       0      16      32768        0
       malloc-1024   1024       8      24          12       0      16      32768        0
       malloc-1024   1024      16      16          71       0      16      32768        0
        malloc-512    512       9      55         128       0      30      32768        0
        malloc-512    512       8      56          33       0      30      32768        0
        malloc-512    512       2      62          50       0      30      32768        0
        malloc-512    512       2      62         729       0      30      32768        0
        malloc-512    512       0      64          12       0      30      32768        0
           pcpu-64     64     495      17         495       0     254      32768        0
      tcp_rack_pcb    896       1      35         366       0      16      32256        0
             KNOTE    160      19     181       50981       0      62      32000        0
            ttyinq    160     135      65         300       0      62      32000        0
      tcp_rack_map    120       4     260         970       0     126      31680        0
            cpuset    104       7     272         296       0     126      29016        0
   sctp_asconf_ack     48       0     588          61       0     254      28224        0
        sctp_laddr     48      40     548        2213       0     254      28224        0
   tcp_inpcb ports     32       2     880        1342       0     254      28224        0
               PWD     32      34     848        4835       0     254      28224        0
         malloc-32     32     365     517        4252       0     254      28224        0
         malloc-32     32     214     668        7796       0     254      28224        0
          4 Bucket     48       7     581         157       0     254      28224        0
          2 Bucket     32      74     808        1905       0     254      28224        0
               AIO    208       0     133          86       0      62      27664        0
     udplite_inpcb    424       0      63          27       0      30      26712        0
       malloc-8192   8192       3       0           3       0       1      24576        0
       malloc-8192   8192       3       0           3       0       1      24576        0
              PGRP     88      29     247          80       0     126      24288        0
          rl_entry     40     100     506         100       0     254      24240        0
           rtentry    168      32     112          44       0      62      24192        0
          8 Bucket     80      69     231        1628       0     126      24000        0
        malloc-384    384      20      40          27       0      30      23040        0
        malloc-384    384      20      40         186       0      30      23040        0
        malloc-384    384       0      60         340       0      30      23040        0
         domainset     40       0     567         219       0     254      22680        0
tfo_ccache_entries     80       2     254           2       0     126      20480        0
             udpcb     32       6     624         278       0     254      20160        0
         hostcache     64       3     312           3       0     254      20160        0
   udp_inpcb ports     32       3     627          43       0     254      20160        0
              ertt     72       9     271        1627       0     126      20160        0
         malloc-32     32      15     615         167       0     254      20160        0
         malloc-32     32      82     548        7641       0     254      20160        0
         malloc-32     32     125     505         637       0     254      20160        0
         malloc-32     32     204     426        5811       0     254      20160        0
         malloc-32     32      43     587        2841       0     254      20160        0
         malloc-16     16     482     768       14876       0     254      20000        0
           cryptop    280       0      70          28       0      30      19600        0
             AIOCB    552       0      35         153       0      16      19320        0
       Mountpoints   2752       2       5           2       0       4      19264        0
            AIOLIO    272       0      70          48       0      30      19040        0
 epoch_record pcpu    256       4      60           4       0      62      16384        0
      malloc-16384  16384       1       0           1       0       1      16384        0
       malloc-8192   8192       2       0           2       0       1      16384        0
       malloc-4096   4096       1       3           2       0       2      16384        0
       malloc-4096   4096       3       1           3       0       2      16384        0
       malloc-4096   4096       0       4          13       0       2      16384        0
       malloc-4096   4096       1       3        4999       0       2      16384        0
       malloc-1024   1024       1      15           1       0      16      16384        0
        malloc-512    512       2      30           9       0      30      16384        0
        malloc-512    512       0      32           1       0      30      16384        0
        malloc-512    512       1      31           1       0      30      16384        0
           SMR CPU     32       7     504           7       0     254      16352        0
      vtnet_tx_hdr     24       0     668      426207       0     254      16032        0
         malloc-16     16     350     650        7174       0     254      16000        0
   tcp_log_id_node    120       0     132           3       0     126      15840        0
              kenv    258      15      45        1056       0      30      15480        0
            mqnode    416       3      33           3       0      30      14976        0
              vmem   1856       1       7           1       0       8      14848        0
        SMR SHARED     24       7     504           7       0     254      12264        0
 tcp_log_id_bucket    176       0      69           3       0      62      12144        0
         malloc-16     16      18     732         244       0     254      12000        0
         malloc-16     16      54     696        5489       0     254      12000        0
         malloc-16     16      38     712          94       0     254      12000        0
         malloc-16     16       4     746        5454       0     254      12000        0
         malloc-16     16      19     731       26488       0     254      12000        0
            itimer    352       0      33           8       0      30      11616        0
        malloc-384    384       1      29           1       0      30      11520        0
           pcpu-16     16       7     249           7       0     254       4096        0
       UMA Slabs 1    176      11      11          11       0      62       3872        0
        KMAP ENTRY     96      12      27          14       0       0       3744        0
            pcpu-4      4       1     511          13       0     254       2048        0
       FFS1 dinode    128       0       0           0       0     126          0        0
           ada_ccb    272       0       0           0       0      30          0        0
             swblk    136       0       0           0       0      62          0        0
          swpctrie    144       0       0           0       0      62          0        0
   cdg_qdiffsample     16       0       0           0       0     254          0        0
   pf state scrubs     40       0       0           0       0     254          0        0
   pf frag entries     40       0       0           0       0     254          0        0
          pf frags    248       0       0           0       0      62          0        0
  pf table entries    160       0       0           0       0     254          0        0
pf table entry counters     64       0       0           0       0     254          0        0
   pf source nodes    136       0       0           0       0     254          0        0
     pf state keys     88       0       0           0       0     126          0        0
         pf states    312       0       0           0       0      64          0        0
           pf tags    104       0       0           0       0     126          0        0
          pf mtags    184       0       0           0       0      62          0        0
               ipq     56       0       0           0       0     254          0        0
               tfo      4       0       0           0       0     254          0        0
          sackhole     32       0       0           0       0     254          0        0
             tcptw     72       0       0           0       0     254          0        0
          tcpreass     48       0       0           0       0     254          0        0
       sctp_asconf     40       0       0           0       0     254          0        0
       ripcb ports     32       0       0           0       0     254          0        0
udplite_inpcb ports     32       0       0           0       0     254          0        0
    IPsec SA lft_c     16       0       0           0       0     254          0        0
           NCLNODE    608       0       0           0       0      16          0        0
        mqnotifier    216       0       0           0       0      62          0        0
            mvdata     64       0       0           0       0     254          0        0
            mqueue    248       0       0           0       0      62          0        0
        TMPFS node    224       0       0           0       0      62          0        0
     LTS VFS Cache    360       0       0           0       0      30          0        0
       L VFS Cache    320       0       0           0       0      30          0        0
     STS VFS Cache    144       0       0           0       0      62          0        0
  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    104       0       0           0       0     126          0        0
    mbuf_jumbo_16k  16384       0       0           0       0     254          0        0
     mbuf_jumbo_9k   9216       0       0           0       0     254          0        0
      audit_record   1280       0       0           0       0       8          0        0
        MAC labels     40       0       0           0       0     254          0        0
            vnpbuf   2624       0       0           0       0      64          0        0
            mdpbuf   2624       0       0           0       0       3          0        0
           nfspbuf   2624       0       0           0       0      16          0        0
            swwbuf   2624       0       0           0       0       8          0        0
            swrbuf   2624       0       0           0       0      16          0        0
          umtx_shm     88       0       0           0       0     126          0        0
           umtx pi     96       0       0           0       0     126          0        0
rangeset pctrie nodes    144       0       0           0       0      62          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-65536  65536       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-32768  32768       0       0           0       0       1          0        0
      malloc-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-4096   4096       0       0           0       0       2          0        0
        malloc-384    384       0       0           0       0      30          0        0
           pcpu-32     32       0       0           0       0     254          0        0
            fakepg    104       0       0           0       0     126          0        0
          UMA Hash    256       0       0           0       0      62          0        0

Crashes (15):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/10/01 19:04 freebsd-src e5f93d10782d feb56351 console log report ci-freebsd-main Fatal trap NUM: page fault in in6_selecthlim
2022/07/15 17:42 freebsd-src ac19e54390a0 95cb00d1 console log report ci-freebsd-main Fatal trap NUM: page fault in in6_selecthlim
2022/06/02 22:38 freebsd-src 9bcded6f5d63 02dddea8 console log report ci-freebsd-main Fatal trap NUM: page fault in in6_selecthlim
2022/05/26 04:25 freebsd-src 20b2b464ebb6 3037caa9 console log report ci-freebsd-main Fatal trap NUM: page fault in in6_selecthlim
2022/03/21 05:25 freebsd-src 7819a911ff51 7c337266 console log report ci-freebsd-main Fatal trap NUM: page fault in in6_selecthlim
2022/03/15 09:26 freebsd-src 734782a7814e 7c337266 console log report ci-freebsd-main Fatal trap NUM: page fault in in6_selecthlim
2022/03/06 05:36 freebsd-src 455e0b9ba5dd 7c337266 console log report ci-freebsd-main Fatal trap NUM: page fault in in6_selecthlim
2022/07/14 12:29 freebsd-src 07007f314700 5d921b08 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in6_selecthlim
2022/05/10 22:40 freebsd-src 04831efd9f6b 8d7b3b67 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in6_selecthlim
2022/01/28 00:02 freebsd-src 548a2ec49bd4 64a8e201 console log report ci-freebsd-main Fatal trap NUM: page fault in in6_selecthlim
2022/01/02 14:44 freebsd-src bffefaf3e1ef e1768e9c console log report ci-freebsd-main Fatal trap NUM: page fault in in6_selecthlim
2021/12/28 03:04 freebsd-src d11f81afd5a4 6b3c5e64 console log report ci-freebsd-main Fatal trap NUM: page fault in in6_selecthlim
2022/01/26 11:13 freebsd-src d930ec4ff976 2cbffd88 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in6_selecthlim
2021/10/24 17:54 freebsd-src dfd704b7fb2c 282f03fb console log report ci-freebsd-i386 Fatal trap NUM: page fault in in6_selecthlim
2021/10/03 14:41 freebsd-src 6b88668f0bfc db0f5787 console log report ci-freebsd-i386 Fatal trap NUM: page fault in in6_selecthlim
* Struck through repros no longer work on HEAD.