syzbot


uvm_fault: rtrequest

Status: auto-closed as invalid on 2020/10/23 16:10
Reported-by: syzbot+0f1bec4fe51db48227c3@syzkaller.appspotmail.com
First crash: 1505d, last: 1505d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd uvm_fault: rtrequest (2) C 15 299d 299d 3/3 fixed on 2023/11/14 03:51

Sample crash report:
uvm_fault(0xfffffd807efff2e0, 0xe3, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at      rtrequest+0x59b:        movb    0xe3(%r12),%al
ddb{1}> 
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
kernel page fault
uvm_fault(0xfffffd807efff2e0, 0xe3, 0, 1) -> e
rtrequest(1,ffff800020eba138,4,ffff800020eba1d8,0) at rtrequest+0x59b sys/net/route.c:884
end trace frame: 0xffff800020eba220, count: 0
ddb{1}> trace
rtrequest(1,ffff800020eba138,4,ffff800020eba1d8,0) at rtrequest+0x59b sys/net/route.c:884
icmp6_mtudisc_clone(ffff800020eba230,0) at icmp6_mtudisc_clone+0x178 sys/netinet6/icmp6.c:1819
icmp6_mtudisc_update(ffff800020eba370,0) at icmp6_mtudisc_update+0x19f sys/netinet6/icmp6.c:1018
udp6_ctlinput(5,ffff800020eba3c8,0,ffff800020eba370) at udp6_ctlinput+0x443
icmp6_notify_error(fffffd8064389300,28,38,5) at icmp6_notify_error+0xa1e sys/netinet6/icmp6.c:963
icmp6_input(ffff800020eba798,ffff800020eba7a4,3a,18) at icmp6_input+0xa20 sys/netinet6/icmp6.c:745
ip_deliver(ffff800020eba798,ffff800020eba7a4,3a,18) at ip_deliver+0x353 sys/netinet/ip_input.c:668
ip6_input_if(ffff800020eba798,ffff800020eba7a4,29,0,ffff800000b32800) at ip6_input_if+0x1116
ipv6_input(ffff800000b32800,fffffd8064389300) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171
tun_dev_write(5d01,ffff800020ebaa98,48d1,2) at tun_dev_write+0x1fc sys/net/if_tun.c:868
spec_write(ffff800020eba8e0) at spec_write+0xd4 sys/kern/spec_vnops.c:309
VOP_WRITE(fffffd806e64b1a8,ffff800020ebaa98,11,fffffd807f7bfa20) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268
vn_write(fffffd8066e28dc8,ffff800020ebaa98,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414
dofilewritev(ffff800020ebed80,f0,ffff800020ebaa98,0,ffff800020ebab80) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365
sys_write(ffff800020ebed80,ffff800020ebab30,ffff800020ebab80) at sys_write+0x83 sys/kern/sys_generic.c:285
syscall(ffff800020ebac00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020ebac00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x1955187bb10, count: -17
ddb{1}> show registers
rdi                                0
rsi                                0
rbp               0xffff800020eba100
rbx                             0x17
rdx                           0x4daa    __ALIGN_SIZE+0x3daa
rcx               0xffff800000ae9ac0
rax                                0
r8                              0x70
r9                               0x5
r10               0xc6706ab42129e1ea
r11               0xfc1ef141f299bff3
r12                                0
r13               0xffff800020eba138
r14               0xfffffd8066dea3f8
r15               0xffff800000b51700
rip               0xffffffff816322fb    rtrequest+0x59b
cs                               0x8
rflags                       0x10246    __ALIGN_SIZE+0xf246
rsp               0xffff800020eba010
ss                              0x10
rtrequest+0x59b:        movb    0xe3(%r12),%al
ddb{1}> show proc
PROC (syz-executor.1) pid=20542 stat=onproc
    flags process=0 proc=4000000<THREAD>
    pri=79, usrpri=79, nice=20
    forw=0xffffffffffffffff, list=0xffff800020ebd520,0xffffffff82928bc8
    process=0xffff800020df0010 user=0xffff800020eb5000, vmspace=0xfffffd807efff2e0
    estcpu=36, cpticks=1, pctcpu=0.0
    user=0, sys=1, intr=0
ddb{1}> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 90892  128582   6528      0  7           0                syz-executor.1
*90892   20542   6528      0  7   0x4000000                syz-executor.1
  6597  469636  30596      0  2           0                syz-executor.0
  6597  209737  30596      0  3   0x4000080  netio         syz-executor.0
 30596  434607  12541      0  3        0x82  nanosleep     syz-executor.0
  6528   89451  12541      0  3        0x82  nanosleep     syz-executor.1
 21509   99764      0      0  3     0x14280  nfsidl        nfsio
 90338  505085      0      0  3     0x14280  nfsidl        nfsio
 92979  390892      0      0  3     0x14280  nfsidl        nfsio
  6579  494444      0      0  3     0x14280  nfsidl        nfsio
 16353   40062      0      0  3     0x14280  nfsidl        nfsio
 43628  292111      0      0  3     0x14280  nfsidl        nfsio
 58934  419130      0      0  3     0x14280  nfsidl        nfsio
 35899  169694      0      0  3     0x14280  nfsidl        nfsio
 60321  523436      0      0  3     0x14280  nfsidl        nfsio
   406  406348      0      0  3     0x14280  nfsidl        nfsio
 14122  342918      0      0  3     0x14280  nfsidl        nfsio
 69901  232189      0      0  3     0x14280  nfsidl        nfsio
 67077  412120      0      0  3     0x14280  nfsidl        nfsio
  2453   34568      0      0  3     0x14280  nfsidl        nfsio
 46561   25205      0      0  3     0x14280  nfsidl        nfsio
 12453  484826      0      0  3     0x14280  nfsidl        nfsio
 63819  476997      0      0  3     0x14280  nfsidl        nfsio
 90448   87382      0      0  3     0x14280  nfsidl        nfsio
 67082  163703      0      0  3     0x14280  nfsidl        nfsio
  9322  113218      0      0  3     0x14280  nfsidl        nfsio
 24847  481393      0      0  3     0x14200  bored         sosplice
 12541   57617  34338      0  3        0x82  thrsleep      syz-fuzzer
 12541  138822  34338      0  3   0x4000082  thrsleep      syz-fuzzer
 12541  422963  34338      0  3   0x4000082  thrsleep      syz-fuzzer
 12541  507312  34338      0  3   0x4000082  thrsleep      syz-fuzzer
 12541  471354  34338      0  3   0x4000082  thrsleep      syz-fuzzer
 12541  290502  34338      0  3   0x4000082  thrsleep      syz-fuzzer
 12541  223519  34338      0  3   0x4000082  thrsleep      syz-fuzzer
 12541  447314  34338      0  3   0x4000082  thrsleep      syz-fuzzer
 12541  356005  34338      0  3   0x4000082  kqread        syz-fuzzer
 12541    1052  34338      0  3   0x4000082  thrsleep      syz-fuzzer
 34338  258255  94174      0  3    0x10008a  pause         ksh
 94174   62251  69788      0  3        0x92  select        sshd
 58324  326476      1      0  3    0x100083  ttyin         getty
 69788  363825      1      0  3        0x80  select        sshd
 31544  191074  33461     74  3    0x100092  bpf           pflogd
 33461    2438      1      0  3        0x80  netio         pflogd
 67320  188285  53332     73  3    0x100090  kqread        syslogd
 53332  239294      1      0  3    0x100082  netio         syslogd
 98877  228502      1     77  3    0x100090  poll          dhclient
 16330  407262      1      0  3        0x80  poll          dhclient
 58407  472127      0      0  3     0x14200  bored         smr
  4972  193984      0      0  2     0x14200                zerothread
  3586  374325      0      0  3     0x14200  aiodoned      aiodoned
 47804  479941      0      0  3     0x14200  syncer        update
 44901  331106      0      0  3     0x14200  cleaner       cleaner
 83697  106767      0      0  3     0x14200  reaper        reaper
 23159  341764      0      0  3     0x14200  pgdaemon      pagedaemon
 66679  515014      0      0  3     0x14200  bored         crynlk
  5165  439324      0      0  3     0x14200  bored         crypto
  3118  205789      0      0  3  0x40014200  acpi0         acpi0
 27349  355603      0      0  3  0x40014200                idle1
 73099  210544      0      0  3     0x14200  bored         softnet
 43822  216477      0      0  3     0x14200  bored         systqmp
 62688  501610      0      0  3     0x14200  bored         systq
 32125  465447      0      0  3  0x40014200  bored         softclock
 27720  147957      0      0  3  0x40014200                idle0
     1   36444      0      0  3        0x82  wait          init
     0       0     -1      0  3     0x10200  scheduler     swapper
ddb{1}> show all locks
Process 90892 (syz-executor.1) thread 0xffff800020ebed80 (20542)
exclusive rwlock netlock r = 0 (0xffffffff827a56b8)
#0  witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0  witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1  tun_dev_write+0x1f1 sys/net/if_tun.c:867
#2  spec_write+0xd4 sys/kern/spec_vnops.c:309
#3  VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268
#4  vn_write+0x14e sys/kern/vfs_vnops.c:414
#5  dofilewritev+0x1b6 sys/kern/sys_generic.c:365
#6  sys_write+0x83 sys/kern/sys_generic.c:285
#7  syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#7  syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#8  Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8292f068)
#0  witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0  witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1  vn_write+0x42 sys/kern/vfs_vnops.c:399
#2  dofilewritev+0x1b6 sys/kern/sys_generic.c:365
#3  sys_write+0x83 sys/kern/sys_generic.c:285
#4  syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#4  syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#5  Xsyscall+0x128
ddb{1}> show malloc
           Type InUse  MemUse  HighUse   Limit  Requests Type Lim
         devbuf  9517   6430K    6986K  78643K     13156        0
            pcb    13      8K       8K  78643K       119        0
         rtable   109     14K      17K  78643K      1021        0
         ifaddr    77     15K      15K  78643K       280        0
       counters    43     33K      34K  78643K        79        0
       ioctlops     0      0K       4K  78643K      1678        0
            iov     1     12K      16K  78643K        87        0
          mount     1      1K       1K  78643K         1        0
         vnodes  1252     79K      79K  78643K      2329        0
      UFS quota     1     32K      32K  78643K         1        0
      UFS mount     5     36K      36K  78643K         5        0
            shm     2      1K       5K  78643K        24        0
         VM map     2      1K       1K  78643K         2        0
            sem    12      1K       1K  78643K        41        0
        dirhash    12      2K       2K  78643K        12        0
           ACPI  1824    197K     290K  78643K     13058        0
      file desc     6     17K      33K  78643K      1660        0
          sigio     0      0K       0K  78643K        16        0
           proc    63     63K      95K  78643K      1007        0
        subproc    32      2K       4K  78643K       357        0
    NFS srvsock     1      0K       0K  78643K         1        0
     NFS daemon     1     16K      16K  78643K         1        0
    ip_moptions     0      0K       0K  78643K        77        0
       in_multi    73      4K       4K  78643K       286        0
    ether_multi     1      0K       0K  78643K        14        0
            mrt     0      0K       0K  78643K        11        0
    ISOFS mount     1     32K      32K  78643K         1        0
  MSDOSFS mount     1     16K      16K  78643K         1        0
           ttys    73    334K     334K  78643K        73        0
           exec     0      0K       1K  78643K       479        0
     pfkey data     0      0K       0K  78643K         4        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   175    187K     188K  78643K      6113        0
       UVM aobj    73      8K       8K  78643K        82        0
        memdesc     1      4K       4K  78643K         1        0
    crypto data     1      1K       1K  78643K         1        0
    ip6_options     0      0K       0K  78643K        78        0
            NDP    12      0K       0K  78643K        64        0
           temp   136   3882K    3946K  78643K     37627        0
         kqueue     3      4K      18K  78643K        40        0
      SYN cache     2     16K      16K  78643K         2        0
ddb{1}> show all pools
Name      Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp         64       33    0       24     1     0     1     1     0     8    0
plcache    128       20    0        0     1     0     1     1     0     8    0
rtpcb       80       81    0       79     1     0     1     1     0     8    0
rtentry    112      198    0      161     2     0     2     2     0     8    0
unpcb      120      850    0      838     1     0     1     1     0     8    0
syncache   264       12    0       12     6     6     0     1     0     8    0
sackhl      24        1    0        1     1     1     0     1     0     8    0
tcpqe       32     1529    0     1529     2     2     0     1     0     8    0
tcpcb      544      244    0      240     2     1     1     2     0     8    0
inpcb      296     1512    0     1505    10     9     1     2     0     8    0
rttmr       72        4    0        4     1     1     0     1     0     8    0
nd6         48       59    0       54     1     0     1     1     0     8    0
pkpcb       40        6    0        6     2     2     0     1     0     8    0
ppxss      1136       2    0        2     2     2     0     1     0     8    0
pffrag     232        7    0        7     4     4     0     1     0   482    0
pffrnode    88        7    0        7     4     4     0     1     0     8    0
pffrent     40      188    0      188     5     5     0     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
pfrktable  1344      96    0       91     3     2     1     1     0     8    0
pfstitem    24       24    0       22     1     0     1     1     0     8    0
pfstkey    112       26    0       24     1     0     1     1     0     8    0
pfstate    328       25    0       23     2     1     1     2     0     8    0
pfrule     1360      48    0       38     2     1     1     2     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256     1044    0      903    20    10    10    17     0     8    0
art_table   32     1045    0      903     3     1     2     3     0     8    0
art_node    16      194    0      165     1     0     1     1     0     8    0
sysvmsgpl   40       19    0       10     1     0     1     1     0     8    0
semupl     112        3    0        3     2     2     0     1     0     8    0
semapl     112       29    0       19     1     0     1     1     0     8    0
shmpl      112       79    0        9     2     0     2     2     0     8    0
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino2pl    256     3668    0     2261    89     0    89    89     0     8    0
ffsino     272     3668    0     2261    96     1    95    95     0     8    0
nchpl      144     6194    0     4594    60     0    60    60     0     8    0
uvmvnodes   72     4498    0        0    82     0    82    82     0     8    0
vnodes     208     4498    0        0   237     0   237   237     0     8    0
namei      1024   21141    0    21141    13    12     1     1     0     8    1
percpumem   16       50    0       18     1     0     1     1     0     8    0
vcpupl     1984      15    0        0     2     0     2     2     0     8    0
vmpool     560       20    0        5     3     1     2     2     0     8    0
pfiaddrpl  120       27    0       24     3     2     1     1     0     8    0
scxspl     192    17255    0    17255    12    11     1     7     0     8    1
plimitpl   152      118    0      110     1     0     1     1     0     8    0
sigapl     424     1840    0     1787    10     3     7     7     0     8    1
futexpl     56    21795    0    21795    11    10     1     1     0     8    1
knotepl    112      328    0      309     1     0     1     1     0     8    0
kqueuepl   144      154    0      152     1     0     1     1     0     8    0
pipepl     304      338    0      328     4     3     1     2     0     8    0
fdescpl    496     1803    0     1786     3     0     3     3     0     8    0
filepl     152    12286    0    12183    10     5     5     6     0     8    0
lockfpl    104      570    0      569     1     0     1     1     0     8    0
lockfspl    48      245    0      244     1     0     1     1     0     8    0
sessionpl  112       37    0       26     1     0     1     1     0     8    0
pgrppl      48       55    0       44     1     0     1     1     0     8    0
ucredpl     96     3527    0     3518     1     0     1     1     0     8    0
zombiepl   144     1787    0     1787     5     4     1     1     0     8    1
processpl  992     1840    0     1787    10     3     7     8     0     8    0
procpl     624     4755    0     4691     9     3     6     6     0     8    0
srpgc       64       10    0       10     5     4     1     1     0     8    1
sosppl     128       11    0       11     6     6     0     1     0     8    0
sockpl     400     2457    0     2436    17    14     3     4     0     8    0
mcl64k     65536      8    0        0     1     0     1     1     0     8    0
mcl16k     16384      2    0        0     1     0     1     1     0     8    0
mcl12k     12288     17    0        0     2     0     2     2     0     8    0
mcl9k      9216       4    0        0     1     0     1     1     0     8    0
mcl8k      8192       6    0        0     1     0     1     1     0     8    0
mcl4k      4096       9    0        0     2     0     2     2     0     8    0
mcl2k2     2112       2    0        0     1     0     1     1     0     8    0
mcl2k      2048     283    0        0    27     1    26    27     0     8    0
mtagpl      96       79    0        0     2     0     2     2     0     8    0
mbufpl     256      555    0        0    27     1    26    26     0     8    0
bufpl      280     6295    0      134   441     0   441   441     0     8    0
anonpl      16   192827    0   176798   109    38    71    86     0   124    0
amapchunkpl 152   10790    0    10623    27    18     9    20     0   158    1
amappl16   192     7627    0     6669    84    36    48    58     0     8    0
amappl15   184       29    0       28     2     1     1     1     0     8    0
amappl14   176      127    0      122     1     0     1     1     0     8    0
amappl13   168      938    0      935     1     0     1     1     0     8    0
amappl12   160      517    0      513     1     0     1     1     0     8    0
amappl11   152      171    0      156     1     0     1     1     0     8    0
amappl10   144       42    0       36     1     0     1     1     0     8    0
amappl9    136      762    0      761     1     0     1     1     0     8    0
amappl8    128      939    0      895     2     0     2     2     0     8    0
amappl7    120      212    0      196     1     0     1     1     0     8    0
amappl6    112       42    0       35     2     1     1     1     0     8    0
amappl5    104     1388    0     1371     1     0     1     1     0     8    0
amappl4     96     1230    0     1202     1     0     1     1     0     8    0
amappl3     88      433    0      428     1     0     1     1     0     8    0
amappl2     80    13006    0    12917     2     0     2     2     0     8    0
amappl1     72    62045    0    61577    26    15    11    18     0     8    1
amappl      80     5219    0     5159     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       81    0        9     2     0     2     2     0     8    0
uaddrrnd    24     1823    0     1791     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24     1823    0     1791     1     0     1     1     0     8    0
vmmpekpl   168    15899    0    15848     3     0     3     3     0     8    0
vmmpepl    168   251281    0   248994   291   157   134   149     0   357   32
vmsppl     368     1822    0     1791     4     0     4     4     0     8    1
pdppl      4096    3653    0     3597    14     6     8     8     0     8    0
pvpl        32   582703    0   563433   256    88   168   201     0   265    0
pmappl     232     1822    0     1791     4     2     2     2     0     8    0
extentpl    40       53    0       36     1     0     1     1     0     8    0
phpool     112      331    0       52    10     1     9     9     0     8    0
ddb{1}> machine ddbcpu 0
Stopped at      x86_ipi_db+0x1a:        addq    $0x8,%rsp
ddb{0}> trace
x86_ipi_db(ffffffff82722ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352
x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__sanitizer_cov_trace_const_cmp1(0,ff) at __sanitizer_cov_trace_const_cmp1+0x1e kd_curproc sys/dev/kcov.c:397 [inline]
__sanitizer_cov_trace_const_cmp1(0,ff) at __sanitizer_cov_trace_const_cmp1+0x1e trace_cmp sys/dev/kcov.c:104 [inline]
__sanitizer_cov_trace_const_cmp1(0,ff) at __sanitizer_cov_trace_const_cmp1+0x1e sys/dev/kcov.c:149
pvclock_get_timecount(ffffffff827acfb8) at pvclock_get_timecount+0xa9 sys/dev/pv/pvclock.c:228
nanotime(ffff800022dc1478) at nanotime+0x6f tc_delta sys/kern/kern_tc.c:131 [inline]
nanotime(ffff800022dc1478) at nanotime+0x6f bintime sys/kern/kern_tc.c:266 [inline]
nanotime(ffff800022dc1478) at nanotime+0x6f sys/kern/kern_tc.c:277
clock_gettime(ffff800020ebd520,0,ffff800022dc1478) at clock_gettime+0x9d sys/kern/kern_time.c:116
sys_clock_gettime(ffff800020ebd520,ffff800022dc14e0,ffff800022dc1530) at sys_clock_gettime+0x4c sys/kern/kern_time.c:165
syscall(ffff800022dc15b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800022dc15b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffbc920, count: -10
ddb{0}> machine ddbcpu 1
Stopped at      rtrequest+0x59b:        movb    0xe3(%r12),%al
ddb{1}> trace
rtrequest(1,ffff800020eba138,4,ffff800020eba1d8,0) at rtrequest+0x59b sys/net/route.c:884
icmp6_mtudisc_clone(ffff800020eba230,0) at icmp6_mtudisc_clone+0x178 sys/netinet6/icmp6.c:1819
icmp6_mtudisc_update(ffff800020eba370,0) at icmp6_mtudisc_update+0x19f sys/netinet6/icmp6.c:1018
udp6_ctlinput(5,ffff800020eba3c8,0,ffff800020eba370) at udp6_ctlinput+0x443
icmp6_notify_error(fffffd8064389300,28,38,5) at icmp6_notify_error+0xa1e sys/netinet6/icmp6.c:963
icmp6_input(ffff800020eba798,ffff800020eba7a4,3a,18) at icmp6_input+0xa20 sys/netinet6/icmp6.c:745
ip_deliver(ffff800020eba798,ffff800020eba7a4,3a,18) at ip_deliver+0x353 sys/netinet/ip_input.c:668
ip6_input_if(ffff800020eba798,ffff800020eba7a4,29,0,ffff800000b32800) at ip6_input_if+0x1116
ipv6_input(ffff800000b32800,fffffd8064389300) at ipv6_input+0x48 sys/netinet6/ip6_input.c:171
tun_dev_write(5d01,ffff800020ebaa98,48d1,2) at tun_dev_write+0x1fc sys/net/if_tun.c:868
spec_write(ffff800020eba8e0) at spec_write+0xd4 sys/kern/spec_vnops.c:309
VOP_WRITE(fffffd806e64b1a8,ffff800020ebaa98,11,fffffd807f7bfa20) at VOP_WRITE+0xc6 sys/kern/vfs_vops.c:268
vn_write(fffffd8066e28dc8,ffff800020ebaa98,0) at vn_write+0x14e sys/kern/vfs_vnops.c:414
dofilewritev(ffff800020ebed80,f0,ffff800020ebaa98,0,ffff800020ebab80) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365
sys_write(ffff800020ebed80,ffff800020ebab30,ffff800020ebab80) at sys_write+0x83 sys/kern/sys_generic.c:285
syscall(ffff800020ebac00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020ebac00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x1955187bb10, count: -17

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/07/25 16:09 openbsd df3b6e8e927c 1f7cc1ca .config console log report ci-openbsd-multicore
* Struck through repros no longer work on HEAD.