syzbot


panic: pfi_dynaddr_update

Status: auto-closed as invalid on 2019/11/14 22:57
Reported-by: syzbot+e7c998ef998bc8a73409@syzkaller.appspotmail.com
First crash: 1766d, last: 1685d

Sample crash report:
login: dĪ5և‚%žg+dĪ5և‚%žg+panic: pfi_dynaddr_update
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
pfi_kif_update(ffff800000aa4f00) at pfi_kif_update+0x17a sys/net/pf_if.c:452
pfi_detach_ifnet(ffff800000aba800) at pfi_detach_ifnet+0x4d sys/net/pf_if.c:267
if_detach(ffff800000aba800) at if_detach+0x15d sys/net/if.c:1114
tun_clone_destroy(ffff800000aba800) at tun_clone_destroy+0x1c6 sys/net/if_tun.c:278
spec_close(ffff800015946950) at spec_close+0x3b0 sys/kern/spec_vnops.c:553
VOP_CLOSE(fffffd802f8835c8,2,fffffd803f7c66c0,ffff8000ffff3160) at VOP_CLOSE+0xc8 sys/kern/vfs_vops.c:174
vn_closefile(fffffd803611d800,ffff8000ffff3160) at vn_closefile+0x14b vn_close sys/kern/vfs_vnops.c:289 [inline]
vn_closefile(fffffd803611d800,ffff8000ffff3160) at vn_closefile+0x14b sys/kern/vfs_vnops.c:587
fdrop(fffffd803611d800,ffff8000ffff3160) at fdrop+0xc9 sys/kern/kern_descrip.c:1273
closef(fffffd803611d800,ffff8000ffff3160) at closef+0x118 sys/kern/kern_descrip.c:1257
fdfree(ffff8000ffff3160) at fdfree+0xf7 sys/kern/kern_descrip.c:1189
exit1(ffff8000ffff3160,0,1) at exit1+0x32f sys/kern/kern_exit.c:196
sys_exit(ffff8000ffff3160,ffff800015946bf0,ffff800015946c60) at sys_exit+0x17 sys/kern/kern_exit.c:94
end trace frame: 0xffff800015946cb0, count: 0
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb> 
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
pfi_dynaddr_update
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
pfi_kif_update(ffff800000aa4f00) at pfi_kif_update+0x17a sys/net/pf_if.c:452
pfi_detach_ifnet(ffff800000aba800) at pfi_detach_ifnet+0x4d sys/net/pf_if.c:267
if_detach(ffff800000aba800) at if_detach+0x15d sys/net/if.c:1114
tun_clone_destroy(ffff800000aba800) at tun_clone_destroy+0x1c6 sys/net/if_tun.c:278
spec_close(ffff800015946950) at spec_close+0x3b0 sys/kern/spec_vnops.c:553
VOP_CLOSE(fffffd802f8835c8,2,fffffd803f7c66c0,ffff8000ffff3160) at VOP_CLOSE+0xc8 sys/kern/vfs_vops.c:174
vn_closefile(fffffd803611d800,ffff8000ffff3160) at vn_closefile+0x14b vn_close sys/kern/vfs_vnops.c:289 [inline]
vn_closefile(fffffd803611d800,ffff8000ffff3160) at vn_closefile+0x14b sys/kern/vfs_vnops.c:587
fdrop(fffffd803611d800,ffff8000ffff3160) at fdrop+0xc9 sys/kern/kern_descrip.c:1273
closef(fffffd803611d800,ffff8000ffff3160) at closef+0x118 sys/kern/kern_descrip.c:1257
fdfree(ffff8000ffff3160) at fdfree+0xf7 sys/kern/kern_descrip.c:1189
exit1(ffff8000ffff3160,0,1) at exit1+0x32f sys/kern/kern_exit.c:196
sys_exit(ffff8000ffff3160,ffff800015946bf0,ffff800015946c60) at sys_exit+0x17 sys/kern/kern_exit.c:94
syscall(ffff800015946cc0) at syscall+0x508
Xsyscall(0,1,0,1,0,7f7ffffc3674) at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc3640, count: -16
ddb> show registers
rdi                                0
rsi                              0x1
rbp               0xffff8000159466e0
rbx               0xffff800015946790
rdx                              0x2
rcx                                0
rax                                0
r8                0xffff8000159466a0
r9                               0x1
r10                                0
r11               0xc57b7a9562f07e21
r12                     0x3000000008
r13               0xffff8000159466f0
r14                            0x100
r15                              0x1
rip               0xffffffff81f7c338    db_enter+0x18
cs                               0x8
rflags                         0x246
rsp               0xffff8000159466d0
ss                              0x10
db_enter+0x18:  addq    $0x8,%rsp
ddb> show proc
PROC (syz-executor.0) pid=387333 stat=onproc
    flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
    pri=32, usrpri=79, nice=20
    forw=0xffffffffffffffff, list=0xffff8000ffff3650,0xffff8000ffff2518
    process=0xffff8000ffff6370 user=0xffff800015941000, vmspace=0xfffffd803f014000
    estcpu=36, cpticks=1, pctcpu=0.0
    user=0, sys=0, intr=0
ddb> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
  8591  388596  66311      0  2           0                syz-executor.1
  8591  197329  66311      0  2   0x4000000                syz-executor.1
 30680  456887  88674      0  3        0x82  nanosleep     syz-executor.0
 12323    9139      1      0  3    0x100083  ttyin         getty
 66311  320156  88674      0  3        0x82  nanosleep     syz-executor.1
 60267   58225      0      0  3     0x14200  bored         sosplice
 88674   40180  91703      0  3        0x82  kqread        syz-fuzzer
 88674  144546  91703      0  3   0x4000082  thrsleep      syz-fuzzer
 88674   39902  91703      0  3   0x4000082  thrsleep      syz-fuzzer
 88674  365047  91703      0  3   0x4000082  thrsleep      syz-fuzzer
 88674   90414  91703      0  3   0x4000082  thrsleep      syz-fuzzer
 88674  323928  91703      0  3   0x4000082  thrsleep      syz-fuzzer
 88674   58409  91703      0  3   0x4000082  thrsleep      syz-fuzzer
 88674  152836  91703      0  3   0x4000082  thrsleep      syz-fuzzer
 91703  250209  30737      0  3    0x10008a  pause         ksh
 30737   95331   7887      0  3        0x92  select        sshd
  7887  462739      1      0  3        0x80  select        sshd
 13015  344657  58286     73  3    0x100090  kqread        syslogd
 58286  498538      1      0  3    0x100082  netio         syslogd
 96536  220281      1     77  3    0x100090  poll          dhclient
  1686  244663      1      0  3        0x80  poll          dhclient
 16806  298621      0      0  2     0x14200                zerothread
 77423  236508      0      0  3     0x14200  aiodoned      aiodoned
 33341  453123      0      0  3     0x14200  syncer        update
 87409  372756      0      0  3     0x14200  cleaner       cleaner
   210  343699      0      0  3     0x14200  reaper        reaper
  5818  414206      0      0  3     0x14200  pgdaemon      pagedaemon
 35597  119785      0      0  3     0x14200  bored         crynlk
 57604  352791      0      0  3     0x14200  bored         crypto
  1229  422785      0      0  3  0x40014200  acpi0         acpi0
 70959  211164      0      0  2     0x14200                softnet
 71123  244520      0      0  3     0x14200  bored         systqmp
  4636   92878      0      0  3     0x14200  bored         systq
 85393  202424      0      0  3  0x40014200  bored         softclock
 66768   25906      0      0  3  0x40014200                idle0
 50894  198974      0      0  3     0x14200  bored         smr
     1  449080      0      0  3        0x82  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb> show all locks
No such command
ddb> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim Kern Lim
         devbuf  9579   6381K    7386K  78643K     33448        0        0
            pcb    13      8K       8K  78643K       623        0        0
         rtable   112      4K       4K  78643K      2525        0        0
         ifaddr    83     19K      21K  78643K       911        0        0
       counters    19     16K      16K  78643K        19        0        0
       ioctlops     0      0K       2K  78643K       413        0        0
            iov     0      0K      44K  78643K      1094        0        0
          mount     1      1K       1K  78643K         1        0        0
         vnodes  1204     76K      77K  78643K      9495        0        0
      UFS quota     1     32K      32K  78643K         1        0        0
      UFS mount     5     36K      36K  78643K         5        0        0
            shm     2      1K       9K  78643K       113        0        0
         VM map     2      0K       0K  78643K         2        0        0
            sem    12      0K       1K  78643K       888        0        0
        dirhash    12      2K       2K  78643K        12        0        0
           ACPI  1793    195K     288K  78643K     12645        0        0
      file desc     6     17K      25K  78643K      8656        0        0
          sigio     0      0K       0K  78643K       162        0        0
           proc    42     30K      54K  78643K      2104        0        0
        subproc    32      2K       2K  78643K       433        0        0
    NFS srvsock     1      0K       0K  78643K         1        0        0
     NFS daemon     1     16K      16K  78643K         1        0        0
    ip_moptions     0      0K       0K  78643K       821        0        0
       in_multi    33      2K       2K  78643K       544        0        0
    ether_multi     1      0K       0K  78643K        34        0        0
            mrt     0      0K       0K  78643K        18        0        0
    ISOFS mount     1     32K      32K  78643K         1        0        0
  MSDOSFS mount     1     16K      16K  78643K         1        0        0
           ttys   102    450K     450K  78643K       102        0        0
           exec     0      0K       1K  78643K      1299        0        0
     pfkey data     0      0K       0K  78643K         3        0        0
        pagedep     1      8K       8K  78643K         1        0        0
       inodedep     1     32K      32K  78643K         1        0        0
         newblk     1      0K       0K  78643K         1        0        0
        VM swap     7     26K      26K  78643K         7        0        0
       UVM amap   105     21K      31K  78643K     21546        0        0
       UVM aobj   130      4K       4K  78643K       162        0        0
        memdesc     1      4K       4K  78643K         1        0        0
    crypto data     1      1K       1K  78643K         1        0        0
    ip6_options     0      0K       1K  78643K       321        0        0
            NDP    20      0K       0K  78643K       275        0        0
           temp   226   3527K    4164K  78643K    134778        0        0
         kqueue     1      0K       0K  78643K        76        0        0
      SYN cache     2     16K      16K  78643K         2        0        0
ddb> show all pools
Name      Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp         64       57    0       51     1     0     1     1     0     8    0
rtpcb       80      402    0      400     1     0     1     1     0     8    0
rtentry    112      307    0      263     3     1     2     2     0     8    0
unpcb      120     3091    0     3083     1     0     1     1     0     8    0
syncache   264        4    0        4     1     1     0     1     0     8    0
tcpqe       32     3669    0     3669     1     1     0     1     0     8    0
tcpcb      544     1326    0     1322     1     0     1     1     0     8    0
ipq         40       19    0       19     9     9     0     1     0     8    0
ipqe        40       37    0       37     9     9     0     1     0     8    0
inpcb      280     3807    0     3800     6     5     1     2     0     8    0
ip6q        72        4    0        4     3     3     0     1     0     8    0
ip6af       48        8    0        8     3     3     0     1     0     8    0
nd6         48       75    0       69     1     0     1     1     0     8    0
pkpcb       40       44    0       44    16    16     0     1     0     8    0
swfcl       56        6    0        0     1     0     1     1     0     8    0
ppxss      1128     143    0      143    24    23     1     1     0     8    1
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256     1258    0     1064    18     5    13    13     0     8    0
art_table   32     1259    0     1064     2     0     2     2     0     8    0
art_node    16      302    0      262     1     0     1     1     0     8    0
sysvmsgpl   40       22    0       18     2     1     1     1     0     8    0
semupl     112        3    0        3     1     1     0     1     0     8    0
semapl     112      886    0      876     1     0     1     1     0     8    0
shmpl      112      160    0       32     4     0     4     4     0     8    0
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino1pl    128    15022    0    13620    47     0    47    47     0     8    0
ffsino     240    15022    0    13620    84     0    84    84     0     8    0
nchpl      144    27275    0    25645    61     0    61    61     0     8    0
uvmvnodes   72     6134    0        0   112     0   112   112     0     8    0
vnodes     200     6134    0        0   323     0   323   323     0     8    0
namei      1024   89856    0    89856     3     2     1     1     0     8    1
scsiplug    64       12    0       12    10    10     0     1     0     8    0
scxspl     192    88583    0    88583    51    50     1     7     0     8    1
plimitpl   152      692    0      685     1     0     1     1     0     8    0
sigapl     432     8768    0     8754     2     0     2     2     0     8    0
futexpl     56   140602    0   140602     3     2     1     1     0     8    1
knotepl    112     1976    0     1955     1     0     1     1     0     8    0
kqueuepl   104     1923    0     1920     1     0     1     1     0     8    0
pipepl     112     4828    0     4807     9     8     1     2     0     8    0
fdescpl    424     8769    0     8754     2     0     2     2     0     8    0
filepl     120    52841    0    52740     7     3     4     5     0     8    0
lockfpl    104     2838    0     2838     5     4     1     1     0     8    1
lockfspl    48      962    0      962     5     4     1     1     0     8    1
sessionpl  112       50    0       40     1     0     1     1     0     8    0
pgrppl      48      145    0      135     1     0     1     1     0     8    0
ucredpl     96    10658    0    10651     1     0     1     1     0     8    0
zombiepl   144     8756    0     8755     1     0     1     1     0     8    0
processpl  864     8785    0     8755     4     0     4     4     0     8    0
procpl     632    19497    0    19459     4     0     4     4     0     8    0
sosppl     128       89    0       89    29    28     1     1     0     8    1
sockpl     384     7421    0     7404    10     7     3     4     0     8    1
mcl64k     65536   2837    0     2837   257   251     6    64     0     8    6
mcl16k     16384     26    0       26    19    18     1     1     0     8    1
mcl12k     12288    173    0      173    23    22     1     1     0     8    1
mcl9k      9216     111    0      111    31    30     1     1     0     8    1
mcl8k      8192     160    0      160    28    28     0     1     0     8    0
mcl4k      4096     425    0      425    10     9     1     1     0     8    1
mcl2k2     2112      71    0       71    28    27     1     1     0     8    1
mcl2k      2048   71213    0    71166    16     9     7    12     0     8    0
mtagpl      80      256    0      254     3     2     1     1     0     8    0
mbufpl     256   160545    0   160472   151   142     9    41     0     8    2
bufpl      256    30336    0    24199   385     1   384   384     0     8    0
anonpl      16   854328    0   844083   277   215    62    67     0    62   10
amapchunkpl 152   39870    0    39766   100    93     7    18     0   158    2
amappl16   192    45086    0    44382   304   260    44    47     0     8    8
amappl15   184     3264    0     3264     4     4     0     1     0     8    0
amappl14   176     3329    0     3321     1     0     1     1     0     8    0
amappl13   168     1425    0     1425     5     5     0     1     0     8    0
amappl12   160     1613    0     1609     1     0     1     1     0     8    0
amappl11   152      876    0      865     1     0     1     1     0     8    0
amappl10   144      623    0      621     1     0     1     1     0     8    0
amappl9    136     1626    0     1622     1     0     1     1     0     8    0
amappl8    128     1111    0     1082     1     0     1     1     0     8    0
amappl7    120      608    0      601     1     0     1     1     0     8    0
amappl6    112      837    0      830     1     0     1     1     0     8    0
amappl5    104     1930    0     1919     1     0     1     1     0     8    0
amappl4     96     6837    0     6808     1     0     1     1     0     8    0
amappl3     88     5885    0     5874     1     0     1     1     0     8    0
amappl2     80    69548    0    69472     3     1     2     3     0     8    0
amappl1     72   160866    0   160434    25    15    10    19     0     8    0
amappl      80    20158    0    20122     1     0     1     1     0    84    0
dma4096    4096       1    0        1     1     1     0     1     0     8    0
dma256     256        6    0        6     1     1     0     1     0     8    0
dma64       64      259    0      259     1     1     0     1     0     8    0
dma32       32        7    0        7     1     1     0     1     0     8    0
dma16       16       17    0       17     1     1     0     1     0     8    0
aobjpl      64      161    0       32     3     0     3     3     0     8    0
uaddrrnd    24     8769    0     8754     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24     8769    0     8754     1     0     1     1     0     8    0
vmmpekpl   168    51894    0    51870     2     0     2     2     0     8    0
vmmpepl    168  1023276    0  1021409   393   292   101   107     0   357   19
vmsppl     272     8768    0     8754     3     2     1     2     0     8    0
pdppl      4096   17544    0    17508     6     1     5     6     0     8    0
pvpl        32  2371567    0  2358116   526   373   153   225     0   265   24
pmappl     200     8768    0     8754     1     0     1     1     0     8    0
extentpl    40       41    0       26     1     0     1     1     0     8    0
phpool     112      987    0      470    18     1    17    17     0     8    0

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/08/16 22:56 openbsd 3f6f9f7d8362 8fd428a1 .config console log report ci-openbsd-main
2019/05/28 12:47 openbsd 5837d48b91b0 6bd61501 .config console log report ci-openbsd-main
* Struck through repros no longer work on HEAD.