syzbot


panic: unhandled af 210

Status: closed as dup on 2020/01/03 12:48
Reported-by: syzbot+4bd04790dcf5dd1965cf@syzkaller.appspotmail.com
First crash: 1788d, last: 1788d
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 210
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
* 81961  51539      0         0x2  0x4000000    0  syz-executor4430
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821b7e70) at panic+0x15c sys/kern/subr_prf.c:207
unhandled_af(d2) at unhandled_af+0x16
pf_addrcpy(ffff80001d3d7f48,ffff80001d3d8240,d2) at pf_addrcpy+0x99 sys/net/pf.c:409
pfioctl(4900,c0504417,ffff80001d3d8240,1,ffff8000ffff4ee0) at pfioctl+0x43c0 sys/net/pf_ioctl.c:1827
VOP_IOCTL(fffffd805d620820,c0504417,ffff80001d3d8240,1,fffffd806c3bed20,ffff8000ffff4ee0) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd805d71d800,c0504417,ffff80001d3d8240,ffff8000ffff4ee0) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff8000ffff4ee0,ffff80001d3d8358,ffff80001d3d83a0) at sys_ioctl+0x5b9
syscall(ffff80001d3d8420) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x213f6d5f9b0, 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 210
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821b7e70) at panic+0x15c sys/kern/subr_prf.c:207
unhandled_af(d2) at unhandled_af+0x16
pf_addrcpy(ffff80001d3d7f48,ffff80001d3d8240,d2) at pf_addrcpy+0x99 sys/net/pf.c:409
pfioctl(4900,c0504417,ffff80001d3d8240,1,ffff8000ffff4ee0) at pfioctl+0x43c0 sys/net/pf_ioctl.c:1827
VOP_IOCTL(fffffd805d620820,c0504417,ffff80001d3d8240,1,fffffd806c3bed20,ffff8000ffff4ee0) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd805d71d800,c0504417,ffff80001d3d8240,ffff8000ffff4ee0) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533
sys_ioctl(ffff8000ffff4ee0,ffff80001d3d8358,ffff80001d3d83a0) at sys_ioctl+0x5b9
syscall(ffff80001d3d8420) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x213f6d5f9b0, count: -10
ddb> show registers
rdi                                0
rsi                              0x1
rbp               0xffff80001d3d7e00
rbx               0xffff80001d3d7eb0
rdx                              0x2
rcx                              0x1
rax                              0x1
r8                0xffff80001d3d7dc0
r9                               0x1
r10               0xd8c3e552bfa4c4a8
r11               0x7541b5c6c51d839b
r12                     0x3000000008
r13               0xffff80001d3d7e10
r14                            0x100
r15                              0x1
rip               0xffffffff81ae0658    db_enter+0x18
cs                               0x8
rflags                         0x246
rsp               0xffff80001d3d7df0
ss                              0x10
db_enter+0x18:  addq    $0x8,%rsp
ddb> show proc
PROC (syz-executor4430) pid=81961 stat=onproc
    flags process=2<EXEC> proc=4000000<THREAD>
    pri=51, usrpri=51, nice=20
    forw=0xffffffffffffffff, list=0xffff8000ffff58c0,0xffffffff8254b668
    process=0xffff80001d39aa50 user=0xffff80001d3d3000, vmspace=0xfffffd806bc09aa0
    estcpu=1, cpticks=0, pctcpu=0.0
    user=0, sys=0, intr=0
ddb> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 51539   12602  53539      0  2         0x2                syz-executor4430
*51539   81961  53539      0  7   0x4000002                syz-executor4430
 53539  282332  68873      0  3    0x10008a  pause         ksh
 68873   79356  35466      0  3        0x92  select        sshd
 38302  377882      1      0  3    0x100083  ttyin         getty
 35466  415845      1      0  3        0x80  select        sshd
  5019  119566  25718     73  3    0x100090  kqread        syslogd
 25718  219618      1      0  3    0x100082  netio         syslogd
 18999   80222      1     77  3    0x100090  poll          dhclient
 47993  479993      1      0  3        0x80  poll          dhclient
 58651  360416      0      0  2     0x14200                zerothread
 25603  368775      0      0  3     0x14200  aiodoned      aiodoned
 14937  444674      0      0  3     0x14200  syncer        update
 99024  111796      0      0  3     0x14200  cleaner       cleaner
 23065  278361      0      0  3     0x14200  reaper        reaper
 11431  287075      0      0  3     0x14200  pgdaemon      pagedaemon
 85998  225723      0      0  3     0x14200  bored         crynlk
 64475  385678      0      0  3     0x14200  bored         crypto
 79597  109812      0      0  3  0x40014200  acpi0         acpi0
 14482  131044      0      0  3     0x14200  bored         softnet
 12398  251270      0      0  3     0x14200  bored         systqmp
 48914  500753      0      0  3     0x14200  bored         systq
 31609  457320      0      0  3  0x40014200  bored         softclock
  8542  214508      0      0  3  0x40014200                idle0
 87412  262644      0      0  3     0x14200  bored         smr
     1   77281      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       709        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       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     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     2433    0     2433     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        5     1     0     1     1     0     8    1
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      192    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    5921    0     5886     8     0     8     8     0     8    3
mtagpl      80        2    0        2     1     1     0     1     0     8    0
mbufpl     256    10083    0    10039     5     0     5     5     0     8    1
bufpl      280     2106    0      258   132     0   132   132     0     8    0
anonpl      16    17434    0    16254     7     1     6     7     0   107    1
amapchunkpl 152     468    0      430     2     0     2     2     0   158    0
amappl16   192       28    0       26     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        5    0        5     1     0     1     1     0     8    1
amappl11   152       42    0       31     1     0     1     1     0     8    0
amappl10   144        3    0        3     1     0     1     1     0     8    1
amappl9    136      373    0      372     1     0     1     1     0     8    0
amappl8    128       64    0       59     1     0     1     1     0     8    0
amappl7    120       65    0       56     1     0     1     1     0     8    0
amappl6    112       44    0       42     1     0     1     1     0     8    0
amappl5    104      155    0      146     1     0     1     1     0     8    0
amappl4     96      396    0      373     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    12212    0    11810    16     5    11    16     0     8    2
amappl      80      354    0      334     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     5230    0     5216     1     0     1     1     0     8    0
vmmpepl    168    26186    0    25365    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    70934    0    68123    27     0    27    27     0   265    4
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        2     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
2020/01/02 03:40 openbsd ad460bdde645 25a0186e .config console log report syz C ci-openbsd-main
2020/01/02 03:27 openbsd ad460bdde645 25a0186e .config console log report ci-openbsd-main
* Struck through repros no longer work on HEAD.