syzbot


panic: receive 1: so ADDR, so_type 3, sb_cc 33

Status: closed as dup on 2019/12/15 14:47
Reported-by: syzbot+3dbd177568a46236b95f@syzkaller.appspotmail.com
First crash: 1595d, last: 1595d
Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
panic: receive 1: so ADDR, so_type 3, sb_cc 176 1 1643d 1643d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd panic: receive 1: so ADDR, so_type 3, sb_cc 33 (2) 1 1522d 1522d 0/3 closed as dup on 2020/02/26 10:40

Sample crash report:
login: panic: receive 1: so 0xfffffd805e4da300, so_type 3, sb_cc 33
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*121968  23458      0           0          0    0  dhclient
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff8219b1e0) at panic+0x15c sys/kern/subr_prf.c:207
soreceive(fffffd805e4da300,0,ffff80001d376bd8,0,0,ffff80001d376ae4) at soreceive+0x16ac sys/kern/uipc_socket.c:798
soo_read(fffffd8066ff67f8,ffff80001d376bd8,0) at soo_read+0x53 sys/kern/sys_socket.c:70
dofilereadv(ffff8000ffff89e8,6,ffff80001d376bd8,0,ffff80001d376cc0) at dofilereadv+0x1a2 sys/kern/sys_generic.c:236
sys_read(ffff8000ffff89e8,ffff80001d376c70,ffff80001d376cc0) at sys_read+0x83 sys/kern/sys_generic.c:156
syscall(ffff80001d376d40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8f50, count: 7
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
receive 1: so 0xfffffd805e4da300, so_type 3, sb_cc 33
ddb> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff8219b1e0) at panic+0x15c sys/kern/subr_prf.c:207
soreceive(fffffd805e4da300,0,ffff80001d376bd8,0,0,ffff80001d376ae4) at soreceive+0x16ac sys/kern/uipc_socket.c:798
soo_read(fffffd8066ff67f8,ffff80001d376bd8,0) at soo_read+0x53 sys/kern/sys_socket.c:70
dofilereadv(ffff8000ffff89e8,6,ffff80001d376bd8,0,ffff80001d376cc0) at dofilereadv+0x1a2 sys/kern/sys_generic.c:236
sys_read(ffff8000ffff89e8,ffff80001d376c70,ffff80001d376cc0) at sys_read+0x83 sys/kern/sys_generic.c:156
syscall(ffff80001d376d40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe8f50, count: -8
ddb> show registers
rdi                                0
rsi                              0x1
rbp               0xffff80001d376920
rbx               0xffff80001d3769d0
rdx                              0x2
rcx                                0
rax                                0
r8                0xffff80001d3768e0
r9                               0x1
r10                                0
r11               0xa10854ef37b80b93
r12                     0x3000000008
r13               0xffff80001d376930
r14                            0x100
r15                              0x1
rip               0xffffffff81f1cb68    db_enter+0x18
cs                               0x8
rflags                         0x246
rsp               0xffff80001d376910
ss                              0x10
db_enter+0x18:  addq    $0x8,%rsp
ddb> show proc
PROC (dhclient) pid=121968 stat=onproc
    flags process=0 proc=0
    pri=50, usrpri=50, nice=20
    forw=0xffffffffffffffff, list=0xffff8000ffff8c60,0xffff8000ffff93d8
    process=0xffff8000ffff66e0 user=0xffff80001d371000, vmspace=0xfffffd806bc12440
    estcpu=0, cpticks=0, pctcpu=0.0
    user=0, sys=0, intr=0
ddb> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 68445   73834  10460      0  2           0                syz-executor.1
 68445  193901  10460      0  2   0x4000000                syz-executor.1
 10926  376209  80706      0  3        0x80  nanosleep     syz-executor.0
 10926  138085  80706      0  3   0x4000080  msgwait       syz-executor.0
 10926  106298  80706      0  3   0x4000080  fsleep        syz-executor.0
 14889  467231      0      0  3     0x14200  acct          acct
 80706  457557  98613      0  3        0x82  nanosleep     syz-executor.0
 10460  297215  98613      0  3        0x82  nanosleep     syz-executor.1
 98613  230004  16945      0  3        0x82  thrsleep      syz-fuzzer
 98613  520368  16945      0  3   0x4000082  thrsleep      syz-fuzzer
 98613  391747  16945      0  3   0x4000082  thrsleep      syz-fuzzer
 98613  274729  16945      0  3   0x4000082  thrsleep      syz-fuzzer
 98613   51524  16945      0  3   0x4000082  thrsleep      syz-fuzzer
 98613  129662  16945      0  3   0x4000082  kqread        syz-fuzzer
 98613  492437  16945      0  3   0x4000082  thrsleep      syz-fuzzer
 16945   43158   4333      0  3    0x10008a  pause         ksh
  4333   12418  31891      0  3        0x92  select        sshd
 66524  329127      1      0  3    0x100083  ttyin         getty
 31891  411417      1      0  3        0x80  select        sshd
 98149  345823  45599     73  3    0x100090  kqread        syslogd
 45599  272425      1      0  3    0x100082  netio         syslogd
 15462    6917      1     77  2    0x100010                dhclient
*23458  121968      1      0  7           0                dhclient
 54301  216567      0      0  2     0x14200                zerothread
 25347  428390      0      0  3     0x14200  aiodoned      aiodoned
 37616  515308      0      0  3     0x14200  syncer        update
 31829  242728      0      0  3     0x14200  cleaner       cleaner
 79327  363958      0      0  3     0x14200  reaper        reaper
 29434  337709      0      0  3     0x14200  pgdaemon      pagedaemon
 87606  417835      0      0  3     0x14200  bored         crynlk
 84304  469171      0      0  3     0x14200  bored         crypto
 97733   68977      0      0  3  0x40014200  acpi0         acpi0
 16564  389672      0      0  3     0x14200  bored         softnet
 30634  373169      0      0  3     0x14200  bored         systqmp
 89567  485881      0      0  3     0x14200  bored         systq
 65476   85463      0      0  3  0x40014200  bored         softclock
  1175  176737      0      0  3  0x40014200                idle0
 99510  461451      0      0  3     0x14200  bored         smr
     1  228378      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  9477   6340K    6778K  78643K     10928        0
            pcb    13      8K       8K  78643K        63        0
         rtable    83      2K       3K  78643K       324        0
         ifaddr    50     11K      11K  78643K        78        0
       counters    19     16K      16K  78643K        19        0
       ioctlops     0      0K       2K  78643K        37        0
            iov     0      0K      24K  78643K        27        0
          mount     1      1K       1K  78643K         1        0
         vnodes  1223     77K      77K  78643K      1335        0
      UFS quota     1     32K      32K  78643K         1        0
      UFS mount     5     36K      36K  78643K         5        0
            shm     2      1K       5K  78643K         5        0
         VM map     2      0K       0K  78643K         2        0
            sem    12      0K       0K  78643K        22        0
        dirhash    12      2K       2K  78643K        12        0
           ACPI  1794    195K     288K  78643K     12646        0
      file desc     6     17K      25K  78643K       173        0
          sigio     0      0K       0K  78643K         2        0
           proc    48     38K      54K  78643K       375        0
        subproc    32      2K       2K  78643K        34        0
    NFS srvsock     1      0K       0K  78643K         1        0
     NFS daemon     1     16K      16K  78643K         1        0
       in_multi    25      1K       2K  78643K        46        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    48    212K     212K  78643K        48        0
           exec     0      0K       1K  78643K       195        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   121     70K      70K  78643K      1240        0
       UVM aobj     9      2K       2K  78643K         9        0
        memdesc     1      4K       4K  78643K         1        0
    crypto data     1      1K       1K  78643K         1        0
    ip6_options     0      0K       0K  78643K        46        0
            NDP     8      0K       0K  78643K        16        0
           temp   100   3022K    3085K  78643K      3658        0
         kqueue     0      0K       0K  78643K         2        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        7    0        2     1     0     1     1     0     8    0
rtpcb       80      157    0      155     1     0     1     1     0     8    0
rtentry    112       50    0       17     2     0     2     2     0     8    0
unpcb      120       93    0       85     1     0     1     1     0     8    0
syncache   264        6    0        6     2     1     1     1     0     8    1
sackhl      24        1    0        1     1     0     1     1     0     8    1
tcpqe       32      343    0      343     1     0     1     1     0     8    1
tcpcb      544       60    0       56     1     0     1     1     0     8    0
ipq         40        2    0        2     1     0     1     1     0     8    1
ipqe        40       90    0       90     1     0     1     1     0     8    1
inpcb      280      227    0      218     2     0     2     2     0     8    1
nd6         48        5    0        4     1     0     1     1     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256      237    0       82    14     0    14    14     0     8    2
art_table   32      238    0       82     2     0     2     2     0     8    0
art_node    16       49    0       18     1     0     1     1     0     8    0
sysvmsgpl   40       14    0       10     1     0     1     1     0     8    0
semapl     112       20    0       10     1     0     1     1     0     8    0
shmpl      112        7    0        0     1     0     1     1     0     8    0
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino1pl    128     1648    0      246    46     0    46    46     0     8    0
ffsino     240     1648    0      246    83     0    83    83     0     8    0
nchpl      144     2098    0      483    60     0    60    60     0     8    0
uvmvnodes   72     1777    0        0    33     0    33    33     0     8    0
vnodes     208     1777    0        0    94     0    94    94     0     8    0
namei      1024    5566    0     5566     1     0     1     1     0     8    1
vcpupl     1984       6    0        0     1     0     1     1     0     8    0
vmpool     528        6    0        0     1     0     1     1     0     8    0
scsiplug    64        1    0        1     1     0     1     1     0     8    1
scxspl     192     6088    0     6088     1     0     1     1     0     8    1
plimitpl   152       24    0       17     1     0     1     1     0     8    0
sigapl     432      344    0      330     2     0     2     2     0     8    0
futexpl     56     4055    0     4054     1     0     1     1     0     8    0
knotepl    112       74    0       55     1     0     1     1     0     8    0
kqueuepl   104       46    0       44     1     0     1     1     0     8    0
pipepl     128      334    0      315     2     0     2     2     0     8    1
fdescpl    424      345    0      330     2     0     2     2     0     8    0
filepl     120     2389    0     2291     5     0     5     5     0     8    2
lockfpl    104      221    0      219     1     0     1     1     0     8    0
lockfspl    48       22    0       20     1     0     1     1     0     8    0
sessionpl  112       17    0        7     1     0     1     1     0     8    0
pgrppl      48       19    0        9     1     0     1     1     0     8    0
ucredpl     96      211    0      204     1     0     1     1     0     8    0
zombiepl   144      330    0      330     1     0     1     1     0     8    1
processpl  872      360    0      330     4     0     4     4     0     8    0
procpl     632      543    0      504     4     0     4     4     0     8    0
sockpl     384      480    0      463     4     0     4     4     0     8    2
mcl64k     65536     15    0       15     1     0     1     1     0     8    1
mcl16k     16384      2    0        2     1     0     1     1     0     8    1
mcl12k     12288      6    0        6     1     0     1     1     0     8    1
mcl9k      9216       1    0        1     1     0     1     1     0     8    1
mcl8k      8192      14    0       14     1     0     1     1     0     8    1
mcl4k      4096      39    0       39     2     1     1     1     0     8    1
mcl2k2     2112       7    0        7     1     0     1     1     0     8    1
mcl2k      2048   67947    0    67882    18     5    13    16     0     8    4
mtagpl      80       18    0        4     2     1     1     1     0     8    0
mbufpl     256   109548    0   109422    29     8    21    23     0     8    5
bufpl      280     6562    0     1330   374     0   374   374     0     8    0
anonpl      16    49583    0    30188    81     1    80    80     0   107    2
amapchunkpl 152    1358    0     1202     8     1     7     8     0   158    0
amappl16   192     1801    0      730    55     0    55    55     0     8    1
amappl15   184       50    0       46     1     0     1     1     0     8    0
amappl14   176       26    0       23     1     0     1     1     0     8    0
amappl13   168        2    0        1     1     0     1     1     0     8    0
amappl12   160       80    0       75     1     0     1     1     0     8    0
amappl11   152      121    0      107     1     0     1     1     0     8    0
amappl10   144       19    0       17     1     0     1     1     0     8    0
amappl9    136      568    0      564     1     0     1     1     0     8    0
amappl8    128      116    0       92     1     0     1     1     0     8    0
amappl7    120       91    0       81     1     0     1     1     0     8    0
amappl6    112      120    0      114     1     0     1     1     0     8    0
amappl5    104      207    0      196     1     0     1     1     0     8    0
amappl4     96      488    0      457     1     0     1     1     0     8    0
amappl3     88      193    0      182     1     0     1     1     0     8    0
amappl2     80     1981    0     1905     3     1     2     3     0     8    0
amappl1     72    15890    0    15450    27    18     9    20     0     8    0
amappl      80      766    0      717     2     0     2     2     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        8    0        0     1     0     1     1     0     8    0
uaddrrnd    24      351    0      330     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      351    0      330     1     0     1     1     0     8    0
vmmpekpl   168     6516    0     6488     2     0     2     2     0     8    0
vmmpepl    168    49286    0    46995   136    11   125   126     0   357   25
vmsppl     272      350    0      330     2     0     2     2     0     8    0
pdppl      4096     708    0      666     6     0     6     6     0     8    0
pvpl        32   159659    0   137209   191     0   191   191     0   265    9
pmappl     200      350    0      330     2     0     2     2     0     8    0
extentpl    40       46    0       29     1     0     1     1     0     8    0
phpool     112      165    0       16     5     0     5     5     0     8    0

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/12/15 14:31 openbsd a037bd7592df eef6e580 .config console log report ci-openbsd-main
* Struck through repros no longer work on HEAD.