syzbot


panic: unhandled af 115

Status: closed as dup on 2020/01/03 12:49
Reported-by: syzbot+b288cd58e9dc8c092753@syzkaller.appspotmail.com
First crash: 1787d, last: 1787d
Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
panic: unhandled af C 21 1785d 1787d

Sample crash report:
login: panic: unhandled af 115
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
* 69248  91027      0         0x2  0x4000000    0  syz-executor8656
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821b8616) at panic+0x15c sys/kern/subr_prf.c:207
unhandled_af(73) at unhandled_af+0x16
pf_addrcpy(ffff80001d3d87a8,ffff80001d3d8aa0,73) at pf_addrcpy+0x99 sys/net/pf.c:409
pfioctl(4900,c0504417,ffff80001d3d8aa0,1,ffff8000ffff4ee0) at pfioctl+0x43c0 sys/net/pf_ioctl.c:1827
VOP_IOCTL(fffffd805d6b0750,c0504417,ffff80001d3d8aa0,1,fffffd806c3bed20,ffff8000ffff4ee0) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd805d72e4b8,c0504417,ffff80001d3d8aa0,ffff8000ffff4ee0) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff8000ffff4ee0,ffff80001d3d8bb8,ffff80001d3d8c00) at sys_ioctl+0x5b9
syscall(ffff80001d3d8c80) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x3603830e170, count: 5
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
unhandled af 115
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821b8616) at panic+0x15c sys/kern/subr_prf.c:207
unhandled_af(73) at unhandled_af+0x16
pf_addrcpy(ffff80001d3d87a8,ffff80001d3d8aa0,73) at pf_addrcpy+0x99 sys/net/pf.c:409
pfioctl(4900,c0504417,ffff80001d3d8aa0,1,ffff8000ffff4ee0) at pfioctl+0x43c0 sys/net/pf_ioctl.c:1827
VOP_IOCTL(fffffd805d6b0750,c0504417,ffff80001d3d8aa0,1,fffffd806c3bed20,ffff8000ffff4ee0) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd805d72e4b8,c0504417,ffff80001d3d8aa0,ffff8000ffff4ee0) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff8000ffff4ee0,ffff80001d3d8bb8,ffff80001d3d8c00) at sys_ioctl+0x5b9
syscall(ffff80001d3d8c80) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x3603830e170, count: -10
ddb> show registers
rdi                                0
rsi                              0x1
rbp               0xffff80001d3d8660
rbx               0xffff80001d3d8710
rdx                              0x2
rcx                              0x1
rax                              0x1
r8                0xffff80001d3d8620
r9                               0x1
r10               0xd511834e5bfe9f17
r11               0x33b95ca94b218d3a
r12                     0x3000000008
r13               0xffff80001d3d8670
r14                            0x100
r15                              0x1
rip               0xffffffff81f91018    db_enter+0x18
cs                               0x8
rflags                         0x246
rsp               0xffff80001d3d8650
ss                              0x10
db_enter+0x18:  addq    $0x8,%rsp
ddb> show proc
PROC (syz-executor8656) pid=69248 stat=onproc
    flags process=2<EXEC> proc=4000000<THREAD>
    pri=52, usrpri=52, nice=20
    forw=0xffffffffffffffff, list=0xffff8000ffff4c68,0xffff8000ffff4298
    process=0xffff80001d39a018 user=0xffff80001d3d3000, vmspace=0xfffffd806bc0a440
    estcpu=2, cpticks=0, pctcpu=0.0
    user=0, sys=0, intr=0
ddb> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 91027  277796  48538      0  2         0x2                syz-executor8656
*91027   69248  48538      0  7   0x4000002                syz-executor8656
 91027   44605  48538      0  3   0x4000082  fsleep        syz-executor8656
 48538   43559  37965      0  3    0x10008a  pause         ksh
 37965  237512  46781      0  3        0x92  select        sshd
 52930  155656      1      0  3    0x100083  ttyin         getty
 46781  111064      1      0  3        0x80  select        sshd
 82598  105439  21124     73  3    0x100090  kqread        syslogd
 21124  341828      1      0  3    0x100082  netio         syslogd
 12235   59617      1     77  3    0x100090  poll          dhclient
 91798  307231      1      0  3        0x80  poll          dhclient
 48666  265607      0      0  2     0x14200                zerothread
 37966  365052      0      0  3     0x14200  aiodoned      aiodoned
  5129  309461      0      0  3     0x14200  syncer        update
 75432  197586      0      0  3     0x14200  cleaner       cleaner
 62884   24072      0      0  3     0x14200  reaper        reaper
 95212  476606      0      0  3     0x14200  pgdaemon      pagedaemon
 76437  146149      0      0  3     0x14200  bored         crynlk
 13666  193186      0      0  3     0x14200  bored         crypto
 74874  197662      0      0  3  0x40014200  acpi0         acpi0
 83583  110728      0      0  3     0x14200  bored         softnet
 78076  214789      0      0  3     0x14200  bored         systqmp
 72392   91657      0      0  3     0x14200  bored         systq
 54352  345207      0      0  3  0x40014200  bored         softclock
 41030   91070      0      0  3  0x40014200                idle0
 47892  247930      0      0  3     0x14200  bored         smr
     1  147164      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
         devbuf  9438   6319K    6320K  78643K     10535        0
            pcb    13      8K       8K  78643K        13        0
         rtable    61      1K       2K  78643K       117        0
         ifaddr    24      7K       7K  78643K        24        0
       counters    19     16K      16K  78643K        19        0
       ioctlops     0      0K       2K  78643K        13        0
          mount     1      1K       1K  78643K         1        0
         vnodes  1180     74K      74K  78643K      1185        0
      UFS quota     1     32K      32K  78643K         1        0
      UFS mount     5     36K      36K  78643K         5        0
            shm     2      1K       1K  78643K         2        0
         VM map     2      0K       0K  78643K         2        0
            sem     2      0K       0K  78643K         2        0
        dirhash    12      2K       2K  78643K        12        0
           ACPI  1794    195K     288K  78643K     12646        0
      file desc     1      0K       0K  78643K         1        0
           proc    47     38K      46K  78643K       278        0
    NFS srvsock     1      0K       0K  78643K         1        0
     NFS daemon     1     16K      16K  78643K         1        0
       in_multi    11      0K       0K  78643K        11        0
    ether_multi     1      0K       0K  78643K         1        0
    ISOFS mount     1     32K      32K  78643K         1        0
  MSDOSFS mount     1     16K      16K  78643K         1        0
           ttys    19     95K      95K  78643K        19        0
           exec     0      0K       1K  78643K       151        0
        pagedep     1      8K       8K  78643K         1        0
       inodedep     1     32K      32K  78643K         1        0
         newblk     1      0K       0K  78643K         1        0
        VM swap     7     26K      26K  78643K         7        0
       UVM amap    63      3K       3K  78643K       730        0
       UVM aobj     2      2K       2K  78643K         2        0
        memdesc     1      4K       4K  78643K         1        0
    crypto data     1      1K       1K  78643K         1        0
            NDP     3      0K       0K  78643K         3        0
           temp    20   3003K    3067K  78643K      1710        0
      SYN cache     2     16K      16K  78643K         2        0
ddb> show all pools
Name      Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp         64        2    0        0     1     0     1     1     0     8    0
rtpcb       80       15    0       13     1     0     1     1     0     8    0
rtentry    112       23    0        1     1     0     1     1     0     8    0
unpcb      120       27    0       19     1     0     1     1     0     8    0
syncache   264        5    0        5     1     0     1     1     0     8    1
tcpcb      544        8    0        5     1     0     1     1     0     8    0
inpcb      280       22    0       16     1     0     1     1     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256       96    0        0     6     0     6     6     0     8    0
art_table   32       97    0        0     1     0     1     1     0     8    0
art_node    16       22    0        2     1     0     1     1     0     8    0
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino1pl    128     1392    0       15    45     0    45    45     0     8    0
ffsino     240     1392    0       15    81     0    81    81     0     8    0
nchpl      144     1567    0       31    57     0    57    57     0     8    0
uvmvnodes   72     1401    0        0    26     0    26    26     0     8    0
vnodes     208     1401    0        0    74     0    74    74     0     8    0
namei      1024    3480    0     3480     1     0     1     1     0     8    1
scxspl     192     2399    0     2399     1     0     1     1     0     8    1
plimitpl   152       13    0        8     1     0     1     1     0     8    0
sigapl     432      176    0      166     2     0     2     2     0     8    0
futexpl     56        5    0        4     1     0     1     1     0     8    0
knotepl    112        5    0        0     1     0     1     1     0     8    0
kqueuepl   104        1    0        0     1     0     1     1     0     8    0
pipepl     112      114    0      107     1     0     1     1     0     8    0
fdescpl    424      177    0      166     2     0     2     2     0     8    0
filepl     120      859    0      814     2     0     2     2     0     8    0
lockfpl    104        5    0        4     1     0     1     1     0     8    0
lockfspl    48        3    0        2     1     0     1     1     0     8    0
sessionpl  112       17    0        9     1     0     1     1     0     8    0
pgrppl      48       17    0        9     1     0     1     1     0     8    0
ucredpl     96       47    0       40     1     0     1     1     0     8    0
zombiepl   144      166    0      166     1     0     1     1     0     8    1
processpl  872      191    0      166     4     0     4     4     0     8    0
procpl     632      193    0      166     3     0     3     3     0     8    0
sockpl     384       64    0       48     2     0     2     2     0     8    0
mcl4k      4096      10    0       10     1     0     1     1     0     8    1
mcl2k      2048    5923    0     5887     8     1     7     8     0     8    0
mtagpl      80        2    0        2     1     1     0     1     0     8    0
mbufpl     256    10098    0    10047     6     1     5     6     0     8    0
bufpl      280     2106    0      258   132     0   132   132     0     8    0
anonpl      16    18562    0    17379     7     2     5     7     0   107    0
amapchunkpl 152     552    0      512     2     0     2     2     0   158    0
amappl16   192       29    0       27     1     0     1     1     0     8    0
amappl15   184       42    0       38     1     0     1     1     0     8    0
amappl14   176       13    0       12     1     0     1     1     0     8    0
amappl12   160        6    0        6     1     0     1     1     0     8    1
amappl11   152       45    0       34     1     0     1     1     0     8    0
amappl10   144        2    0        2     1     1     0     1     0     8    0
amappl9    136      370    0      369     1     0     1     1     0     8    0
amappl8    128       63    0       58     1     0     1     1     0     8    0
amappl7    120       64    0       56     1     0     1     1     0     8    0
amappl6    112       46    0       44     1     0     1     1     0     8    0
amappl5    104      160    0      150     1     0     1     1     0     8    0
amappl4     96      396    0      372     1     0     1     1     0     8    0
amappl3     88      111    0      102     1     0     1     1     0     8    0
amappl2     80      732    0      673     2     0     2     2     0     8    0
amappl1     72    12060    0    11653    16     6    10    16     0     8    1
amappl      80      375    0      354     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
dma128     128      253    0      253     1     1     0     1     0     8    0
dma64       64        6    0        6     1     1     0     1     0     8    0
dma32       32        7    0        7     1     1     0     1     0     8    0
dma16       16       18    0       17     1     0     1     1     0     8    0
aobjpl      64        1    0        0     1     0     1     1     0     8    0
uaddrrnd    24      177    0      166     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      177    0      166     1     0     1     1     0     8    0
vmmpekpl   168     5220    0     5206     1     0     1     1     0     8    0
vmmpepl    168    26462    0    25635    48     6    42    48     0   357    6
vmsppl     272      176    0      166     1     0     1     1     0     8    0
pdppl      4096     360    0      332     5     0     5     5     0     8    0
pvpl        32    71814    0    68988    27     0    27    27     0   265    2
pmappl     200      176    0      166     1     0     1     1     0     8    0
extentpl    40       46    0       29     1     0     1     1     0     8    0
phpool     112      116    0        4     4     0     4     4     0     8    0

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/01/03 01:42 openbsd 8864b42271c4 25a0186e .config console log report syz C ci-openbsd-main
2020/01/03 01:24 openbsd 8864b42271c4 25a0186e .config console log report ci-openbsd-main
* Struck through repros no longer work on HEAD.