syzbot


panic: unhandled af 105

Status: closed as dup on 2020/01/03 12:46
Reported-by: syzbot+a641fd000eac36c445a0@syzkaller.appspotmail.com
First crash: 1790d, last: 1789d
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 105
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
 392239  93667      0         0x2          0    1  syz-executor7579
*294894  93667      0         0x2  0x4000000    0K syz-executor7579
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821da3f7) at panic+0x15c sys/kern/subr_prf.c:207
unhandled_af(69) at unhandled_af+0x16
pf_addrcpy(ffff800020b27928,ffff800020b27c20,69) at pf_addrcpy+0x99 sys/net/pf.c:409
pfioctl(4900,c0504417,ffff800020b27c20,1,ffff800020ad8010) at pfioctl+0x43cf sys/net/pf_ioctl.c:1827
VOP_IOCTL(fffffd806f6d4500,c0504417,ffff800020b27c20,1,fffffd807f7beb40,ffff800020ad8010) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd8078e2c688,c0504417,ffff800020b27c20,ffff800020ad8010) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff800020ad8010,ffff800020b27d38,ffff800020b27d80) at sys_ioctl+0x5b9
syscall(ffff800020b27e00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
syscall(ffff800020b27e00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x8318706b1d0, 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{0}> 
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
unhandled af 105
ddb{0}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821da3f7) at panic+0x15c sys/kern/subr_prf.c:207
unhandled_af(69) at unhandled_af+0x16
pf_addrcpy(ffff800020b27928,ffff800020b27c20,69) at pf_addrcpy+0x99 sys/net/pf.c:409
pfioctl(4900,c0504417,ffff800020b27c20,1,ffff800020ad8010) at pfioctl+0x43cf sys/net/pf_ioctl.c:1827
VOP_IOCTL(fffffd806f6d4500,c0504417,ffff800020b27c20,1,fffffd807f7beb40,ffff800020ad8010) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd8078e2c688,c0504417,ffff800020b27c20,ffff800020ad8010) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff800020ad8010,ffff800020b27d38,ffff800020b27d80) at sys_ioctl+0x5b9
syscall(ffff800020b27e00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
syscall(ffff800020b27e00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x8318706b1d0, count: -10
ddb{0}> show registers
rdi                                0
rsi                              0x1
rbp               0xffff800020b277e0
rbx               0xffff800020b27890
rdx                             0x8b
rcx                              0x2
rax                              0x1
r8                0xffffffff81bb9caf    kprintf+0x16f
r9                               0x1
r10               0x979886ce53a2ca24
r11               0xb238c2826025407b
r12                     0x3000000008
r13               0xffff800020b277f0
r14                            0x100
r15                              0x1
rip               0xffffffff81e5f0e8    db_enter+0x18
cs                               0x8
rflags                         0x246
rsp               0xffff800020b277d0
ss                              0x10
db_enter+0x18:  addq    $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor7579) pid=294894 stat=onproc
    flags process=2<EXEC> proc=4000000<THREAD>
    pri=52, usrpri=52, nice=20
    forw=0xffffffffffffffff, list=0xffff800020ad8c68,0xffffffff8263bd38
    process=0xffff800020aa2aa8 user=0xffff800020b22000, vmspace=0xfffffd806e79a5c8
    estcpu=2, cpticks=0, pctcpu=0.0
    user=0, sys=0, intr=0
ddb{0}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 93667  392239   1238      0  7         0x2                syz-executor7579
 93667  125830   1238      0  3   0x4000082  fsleep        syz-executor7579
*93667  294894   1238      0  7   0x4000002                syz-executor7579
  1238  136007  70086      0  3    0x10008a  pause         ksh
 70086  252226  60983      0  3        0x92  select        sshd
 85535  481078      1      0  3    0x100083  ttyin         getty
 60983   48532      1      0  3        0x80  select        sshd
  7965   46224  72382     74  3    0x100092  bpf           pflogd
 72382  436726      1      0  3        0x80  netio         pflogd
   667  280774   7541     73  3    0x100090  kqread        syslogd
  7541  167861      1      0  3    0x100082  netio         syslogd
 34893  164539      1     77  3    0x100090  poll          dhclient
 25208  331737      1      0  3        0x80  poll          dhclient
 83941  130165      0      0  2     0x14200                zerothread
  7798  474182      0      0  3     0x14200  aiodoned      aiodoned
 56908  505366      0      0  3     0x14200  syncer        update
 78142   51641      0      0  3     0x14200  cleaner       cleaner
 10771  197262      0      0  3     0x14200  reaper        reaper
    18  445628      0      0  3     0x14200  pgdaemon      pagedaemon
 15653   99811      0      0  3     0x14200  bored         crynlk
 68121   95044      0      0  3     0x14200  bored         crypto
 12441  297392      0      0  3  0x40014200  acpi0         acpi0
 11422   38631      0      0  3  0x40014200                idle1
 39124  405685      0      0  3     0x14200  bored         softnet
 64607  106328      0      0  3     0x14200  bored         systqmp
 34512  432578      0      0  3     0x14200  bored         systq
 72730  292801      0      0  3  0x40014200  bored         softclock
 85292  176494      0      0  3  0x40014200                idle0
  3612  190824      0      0  3     0x14200  bored         smr
     1  227434      0      0  3        0x82  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{0}> show all locks
Process 93667 (syz-executor7579) thread 0xffff800020ad8010 (294894)
exclusive rwlock netlock r = 0 (0xffffffff82508618)
#0  witness_lock+0x52e sys/kern/subr_witness.c:1163
#1  pfioctl+0x15f sys/net/pf_ioctl.c:1028
#2  VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
#3  vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
#4  sys_ioctl+0x5b9
#5  syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline]
#5  syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555
#6  Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8261bd50)
#0  witness_lock+0x52e sys/kern/subr_witness.c:1163
#1  syscall+0x400 mi_syscall sys/sys/syscall_mi.h:83 [inline]
#1  syscall+0x400 sys/arch/amd64/amd64/trap.c:555
#2  Xsyscall+0x128
ddb{0}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf  9461   6393K    6394K  78643K     10552        0
            pcb    13      8K       8K  78643K        13        0
         rtable    61      2K       2K  78643K       127        0
         ifaddr    29      8K       8K  78643K        30        0
       counters    39     33K      33K  78643K        39        0
       ioctlops     0      0K       4K  78643K      1467        0
          mount     1      1K       1K  78643K         1        0
         vnodes  1181     74K      74K  78643K      1186        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      1K       1K  78643K         2        0
            sem     2      0K       0K  78643K         2        0
        dirhash    12      2K       2K  78643K        12        0
           ACPI  1809    196K     290K  78643K     12766        0
      file desc     1      0K       0K  78643K         1        0
           proc    59     63K      71K  78643K       358        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       177        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    69      3K       3K  78643K       819        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     4      0K       0K  78643K         4        0
           temp    26   3007K    3071K  78643K      1977        0
      SYN cache     2     16K      16K  78643K         2        0
ddb{0}> 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
plcache    128       20    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       29    0       19     1     0     1     1     0     8    0
syncache   264        5    0        5     2     1     1     1     0     8    1
tcpcb      544        8    0        5     1     0     1     1     0     8    0
inpcb      280       29    0       23     1     0     1     1     0     8    0
pfosfp      40      846    0      423     5     0     5     5     0     8    0
pfosfpen   112     1428    0      714    21     0    21    21     0     8    0
pfstitem    24        8    0        0     1     0     1     1     0     8    0
pfstkey    112        8    0        0     1     0     1     1     0     8    0
pfstate    328        8    0        0     1     0     1     1     0     8    0
pfrule     1360      21    0       16     2     1     1     2     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256       97    0        0     7     0     7     7     0     8    0
art_table   32       98    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     1401    0       16    45     0    45    45     0     8    0
ffsino     272     1401    0       16    93     0    93    93     0     8    0
nchpl      144     1577    0       34    58     0    58    58     0     8    0
uvmvnodes   72     1411    0        0    26     0    26    26     0     8    0
vnodes     208     1411    0        0    75     0    75    75     0     8    0
namei      1024    3774    0     3774     2     1     1     1     0     8    1
percpumem   16       30    0        0     1     0     1     1     0     8    0
scxspl     192     2548    0     2548     2     1     1     2     0     8    1
plimitpl   152       14    0        8     1     0     1     1     0     8    0
sigapl     432      204    0      192     2     0     2     2     0     8    0
futexpl     56        1    0        0     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      128    0      121     2     1     1     1     0     8    0
fdescpl    488      205    0      192     3     0     3     3     0     8    0
filepl     152      998    0      948     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       18    0        9     1     0     1     1     0     8    0
pgrppl      48       18    0        9     1     0     1     1     0     8    0
ucredpl     96       52    0       43     1     0     1     1     0     8    0
zombiepl   144      192    0      192     2     1     1     1     0     8    1
processpl  904      220    0      192     4     0     4     4     0     8    0
procpl     632      222    0      192     3     0     3     3     0     8    0
sockpl     384       73    0       55     2     0     2     2     0     8    0
mcl4k      4096       3    0        0     1     0     1     1     0     8    0
mcl2k      2048      64    0        0     8     0     8     8     0     8    0
mtagpl      80        1    0        0     1     0     1     1     0     8    0
mbufpl     256       78    0        0     5     0     5     5     0     8    0
bufpl      280     2210    0      274   139     0   139   139     0     8    0
anonpl      16    19294    0    17996     7     1     6     7     0   125    0
amapchunkpl 152     529    0      487     2     0     2     2     0   158    0
amappl16   192       31    0       29     1     0     1     1     0     8    0
amappl15   184       50    0       47     1     0     1     1     0     8    0
amappl14   176       15    0       14     2     1     1     1     0     8    0
amappl12   160        3    0        3     2     1     1     1     0     8    1
amappl11   152       47    0       32     1     0     1     1     0     8    0
amappl10   144        6    0        3     1     0     1     1     0     8    0
amappl9    136      422    0      421     1     0     1     1     0     8    0
amappl8    128       71    0       66     1     0     1     1     0     8    0
amappl7    120       76    0       67     1     0     1     1     0     8    0
amappl6    112       48    0       45     1     0     1     1     0     8    0
amappl5    104      130    0      117     1     0     1     1     0     8    0
amappl4     96      460    0      434     1     0     1     1     0     8    0
amappl3     88      109    0      101     1     0     1     1     0     8    0
amappl2     80      810    0      746     2     0     2     2     0     8    0
amappl1     72    13895    0    13447    15     5    10    15     0     8    0
amappl      80      410    0      387     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      205    0      192     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      205    0      192     1     0     1     1     0     8    0
vmmpekpl   168     5365    0     5344     2     1     1     2     0     8    0
vmmpepl    168    29710    0    28799    51    10    41    49     0   357    1
vmsppl     368      204    0      192     2     0     2     2     0     8    0
pdppl      4096     417    0      384     5     0     5     5     0     8    0
pvpl        32    79487    0    76413    32     3    29    29     0   265    2
pmappl     232      204    0      192     1     0     1     1     0     8    0
extentpl    40       46    0       29     1     0     1     1     0     8    0
phpool     112      136    0        4     4     0     4     4     0     8    0

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/12/31 13:06 openbsd 44bcf650e904 7f117e28 .config console log report syz C ci-openbsd-multicore
2020/01/01 05:17 openbsd dd030f8b9c09 25a0186e .config console log report ci-openbsd-main
2019/12/31 12:50 openbsd 44bcf650e904 7f117e28 .config console log report ci-openbsd-multicore
* Struck through repros no longer work on HEAD.