syzbot


corrupted report (3)

Status: closed as dup on 2019/11/17 14:10
Reported-by: syzbot+d0c02839a50337061666@syzkaller.appspotmail.com
First crash: 1002d, last: 740d
Duplicate of (1):
Title Repro Cause bisect Fix bisect Count Last Reported
uvm_fault: in_delmulti syz 375431 740d 1026d
similar bugs (5):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd corrupted report (5) 3 341d 341d 0/3 closed as dup on 2021/09/07 12:09
openbsd corrupted report (6) 177 2d17h 330d 0/3 upstream: reported on 2021/09/18 20:58
openbsd corrupted report (4) 21 571d 740d 0/3 auto-closed as invalid on 2021/04/20 22:19
openbsd corrupted report (2) 17 1017d 1066d 0/3 closed as dup on 2019/09/13 20:10
openbsd corrupted report 7 1070d 1083d 0/3 closed as dup on 2019/08/27 18:20

Sample crash report:
uvm_fault(0xffffffff828177b0, 0xa, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at      vio_rxeof+0x191:        movzwl  0xa(%r15),%eax
ddb> 
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
kernel page fault
uvm_fault(0xffffffff828177b0, 0xa, 0, 1) -> e
vio_rxeof(ffff80000017a000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018
end trace frame: 0xffff80001d65e970, count: 0
ddb> trace
vio_rxeof(ffff80000017a000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018
vio_rx_intr(ffff80000017a050) at vio_rx_intr+0x4d sys/dev/pv/if_vio.c:1056
virtio_check_vqs(ffff80000002ea00) at virtio_check_vqs+0x150 sys/dev/pv/virtio.c:228
intr_handler(ffff80001d65ea20,ffff800000655380) at intr_handler+0x4d sys/arch/amd64/amd64/intr.c:537
Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f
acpicpu_idle() at acpicpu_idle+0x322 sys/dev/acpi/acpicpu.c:1187
sched_idle(ffffffff8273fff0) at sched_idle+0x2ba sys/kern/kern_sched.c:178
end trace frame: 0x0, count: -7
ddb> show registers
rdi                              0xc
rsi                              0xc
rbp               0xffff80001d65e910
rbx               0xffff80000017a000
rdx                                0
rcx               0xffff8000001ab000
rax                                0
r8                               0x2
r9                                 0
r10                                0
r11               0x81ed7fccd5274cfc
r12               0xffff80000002ea00
r13                              0xc
r14               0xfffffd805caf2100
r15                                0
rip               0xffffffff816ac111    vio_rxeof+0x191
cs                               0x8
rflags                       0x10246    __ALIGN_SIZE+0xf246
rsp               0xffff80001d65e880
ss                              0x10
vio_rxeof+0x191:        movzwl  0xa(%r15),%eax
ddb> show proc
PROC (idle0) pid=367586 stat=onproc
    flags process=14000<NOZOMBIE,SYSTEM> proc=40000200<SYSTEM,CPUPEG>
    pri=0, usrpri=50, nice=20
    forw=0x2fe9bccd99ebe798, list=0xffff8000fffffb28,0xffff8000ffffeee0
    process=0xffff8000ffffcec0 user=0xffff80001d659000, vmspace=0xffffffff828177b0
    estcpu=0, cpticks=3903, pctcpu=0.0
    user=0, sys=0, intr=0
ddb> ps
   PID     TID   PPID    UID  S       FLAGS  WAIT          COMMAND
 34997  194747      0      0  3     0x14280  nfsidl        nfsio
 52861  455823      0      0  3     0x14280  nfsidl        nfsio
 15585  492999      0      0  3     0x14280  nfsidl        nfsio
 35102  402193      0      0  3     0x14280  nfsidl        nfsio
 49118   28477      0      0  3     0x14280  nfsidl        nfsio
 21490  359913      0      0  3     0x14280  nfsidl        nfsio
 47804  369657      0      0  3     0x14280  nfsidl        nfsio
 25296   90442      0      0  3     0x14280  nfsidl        nfsio
 11507  242823      0      0  3     0x14280  nfsidl        nfsio
  9463   61056      0      0  3     0x14280  nfsidl        nfsio
 73277   33297      0      0  3     0x14280  nfsidl        nfsio
 62888  185039      0      0  3     0x14280  nfsidl        nfsio
 28510  114418      0      0  3     0x14280  nfsidl        nfsio
  3132   32665      0      0  3     0x14280  nfsidl        nfsio
 92189  447519      0      0  3     0x14280  nfsidl        nfsio
 94964  162429      0      0  3     0x14280  nfsidl        nfsio
 20429  382544      0      0  3     0x14280  nfsidl        nfsio
 45739  165810      0      0  3     0x14280  nfsidl        nfsio
  5351  435871      0      0  3     0x14280  nfsidl        nfsio
 57170  246953      0      0  3     0x14280  nfsidl        nfsio
 21934   78059      1      0  3    0x100083  ttyin         getty
 32560  166242  97035      0  3         0x2  biowait       syz-executor.0
 36805  250474  97035      0  3         0x2  biowait       syz-executor.1
 97035  106939  24095      0  3        0x82  kqread        syz-fuzzer
 97035   85797  24095      0  3   0x4000082  nanosleep     syz-fuzzer
 97035  249628  24095      0  3   0x4000082  thrsleep      syz-fuzzer
 97035   50630  24095      0  3   0x4000082  thrsleep      syz-fuzzer
 97035  488673  24095      0  3   0x4000082  thrsleep      syz-fuzzer
 97035  466420  24095      0  3   0x4000082  thrsleep      syz-fuzzer
 24095  477457  66919      0  3    0x10008a  pause         ksh
 66919  496805  61497      0  3        0x92  select        sshd
 61497    9901      1      0  3        0x80  select        sshd
 68468  310764   3281     73  3    0x100090  kqread        syslogd
  3281  204497      1      0  3    0x100082  netio         syslogd
 26341  190177      1     77  3    0x100090  poll          dhclient
 95589  110264      1      0  3        0x80  poll          dhclient
 56928  358000      0      0  3     0x14200  bored         smr
  1050  477480      0      0  3     0x14200  pgzero        zerothread
 29026  515099      0      0  3     0x14200  aiodoned      aiodoned
 78361  344491      0      0  3     0x14200  syncer        update
 22816  331609      0      0  3     0x14200  cleaner       cleaner
 66661  116013      0      0  3     0x14200  reaper        reaper
 61091  164043      0      0  3     0x14200  pgdaemon      pagedaemon
 79300   64452      0      0  3     0x14200  bored         crynlk
 40226  109638      0      0  3     0x14200  bored         crypto
 22441  226872      0      0  3  0x40014200  acpi0         acpi0
 57836  191428      0      0  3     0x14200  bored         softnet
 97292   34565      0      0  3     0x14200  bored         systqmp
  9529   35174      0      0  3     0x14200  bored         systq
 73176  202730      0      0  3  0x40014200  bored         softclock
*87768  367586      0      0  7  0x40014200                idle0
     1  254725      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  9484   6339K    7237K  78643K     11974        0
            pcb    13      8K       8K  78643K        75        0
         rtable   122      7K       9K  78643K       409        0
         ifaddr    69     14K      16K  78643K       152        0
         sysctl     2      0K       0K  78643K         2        0
       counters    21     16K      17K  78643K        30        0
       ioctlops     0      0K       4K  78643K        81        0
            iov     0      0K      16K  78643K        42        0
          mount     1      1K       1K  78643K         1        0
         vnodes  1221     77K      77K  78643K      1573        0
      UFS quota     1     32K      32K  78643K         1        0
      UFS mount     5     36K      36K  78643K         5        0
            shm     2      1K       5K  78643K         6        0
         VM map     2      0K       0K  78643K         2        0
            sem    12      1K       1K  78643K        54        0
        dirhash    12      2K       2K  78643K        12        0
           ACPI  1809    195K     288K  78643K     12938        0
      file desc     4      9K      25K  78643K       374        0
          sigio     0      0K       0K  78643K         4        0
           proc    49     38K      63K  78643K       381        0
        subproc    32      2K       2K  78643K        34        0
    NFS srvsock     1      0K       0K  78643K         1        0
     NFS daemon     1     16K      16K  78643K         1        0
    ip_moptions     0      0K       0K  78643K        24        0
       in_multi    43      2K       3K  78643K       128        0
    ether_multi     1      0K       0K  78643K        10        0
    ISOFS mount     1     32K      32K  78643K         1        0
  MSDOSFS mount     1     16K      16K  78643K         1        0
           ttys    43    201K     201K  78643K        43        0
           exec     0      0K       1K  78643K       210        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   133     25K      46K  78643K      1710        0
       UVM aobj    13      2K       2K  78643K        13        0
        memdesc     1      4K       4K  78643K         1        0
    crypto data     1      1K       1K  78643K         1        0
    ip6_options     0      0K       0K  78643K        50        0
            NDP    10      0K       0K  78643K        34        0
           temp    95   3856K    3920K  78643K      9160        0
         kqueue     3      4K      16K  78643K        20        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        6    0        0     1     0     1     1     0     8    0
rtpcb       88       39    0       37     1     0     1     1     0     8    0
rtentry    112       71    0       29     2     0     2     2     0     8    0
unpcb      120      275    0      267     1     0     1     1     0     8    0
syncache   272       12    0       12     3     2     1     1     0     8    1
tcpqe       32      150    0      150     2     2     0     1     0     8    0
tcpcb      592      130    0      125     3     1     2     3     0     8    1
ipq         40        3    0        2     1     0     1     1     0     8    0
ipqe        40        6    0        5     1     0     1     1     0     8    0
inpcb      296      422    0      414     2     0     2     2     0     8    1
nd6         48       21    0       16     1     0     1     1     0     8    0
ppxss      1136       1    0        1     1     1     0     1     0     8    0
pfstscr     40        2    0        1     1     0     1     1     0     8    0
pfosfp      40        1    0        0     1     0     1     1     0     8    0
pfosfpen   112        1    0        0     1     0     1     1     0     8    0
pfrktable  1344      38    0       30     2     1     1     2     0     8    0
pftag       88        4    0        4     1     1     0     1     0     8    0
pfstitem    24        2    0        0     1     0     1     1     0     8    0
pfstkey    112        4    0        2     1     0     1     1     0     8    0
pfstate    328        2    0        1     1     0     1     1     0     8    0
pfrule     1360      22    0       12     1     0     1     1     0     8    0
art_heap8  4096       1    0        0     1     0     1     1     0     8    0
art_heap4  256      290    0      104    13     0    13    13     0     8    0
art_table   32      291    0      104     2     0     2     2     0     8    0
art_node    16       70    0       31     1     0     1     1     0     8    0
sysvmsgpl   40        2    0        0     1     0     1     1     0     8    0
semupl     112        1    0        1     1     1     0     1     0     8    0
semapl     112       44    0       34     1     0     1     1     0     8    0
shmpl      112       10    0        0     1     0     1     1     0     8    0
dirhash    1024      17    0        0     3     0     3     3     0     8    0
dino2pl    256     1893    0      498    88     0    88    88     0     8    0
ffsino     240     1893    0      498    83     0    83    83     0     8    0
nchpl      144     2740    0     1138    60     0    60    60     0     8    0
uvmvnodes   72     2240    0        0    41     0    41    41     0     8    0
vnodes     208     2240    0        0   118     0   118   118     0     8    0
namei      1024    7178    0     7176     1     0     1     1     0     8    0
vmpool     528        1    0        1     1     1     0     1     0     8    0
pfiaddrpl  120       18    0       10     1     0     1     1     0     8    0
scxspl     200     7755    0     7753     1     0     1     1     0     8    0
plimitpl   152       27    0       20     1     0     1     1     0     8    0
sigapl     424      581    0      534     6     0     6     6     0     8    0
futexpl     56     7187    0     7187     1     0     1     1     0     8    1
knotepl    112       80    0       60     1     0     1     1     0     8    0
kqueuepl   152       40    0       38     1     0     1     1     0     8    0
pipepl     272      125    0      114     2     1     1     2     0     8    0
fdescpl    432      547    0      534     2     0     2     2     0     8    0
filepl     120     3346    0     3249     4     0     4     4     0     8    0
lockfpl    104       88    0       87     1     0     1     1     0     8    0
lockfspl    48       35    0       34     1     0     1     1     0     8    0
sessionpl  120       18    0        8     1     0     1     1     0     8    0
pgrppl      48       24    0       14     1     0     1     1     0     8    0
ucredpl     96      190    0      183     1     0     1     1     0     8    0
zombiepl   144      534    0      534     1     0     1     1     0     8    1
processpl  944      581    0      534     7     0     7     7     0     8    0
procpl     632     1003    0      951     6     1     5     6     0     8    0
sockpl     400      738    0      720     4     1     3     4     0     8    1
mcl64k     65536     13    0       13     2     1     1     1     0     8    1
mcl16k     16384      2    0        2     1     1     0     1     0     8    0
mcl12k     12288     10    0       10     2     1     1     1     0     8    1
mcl9k      9216       2    0        2     1     1     0     1     0     8    0
mcl8k      8192       6    0        6     1     0     1     1     0     8    1
mcl4k      4096      29    0       29     2     2     0     1     0     8    0
mcl2k2     2112       1    0        1     1     1     0     1     0     8    0
mcl2k      2048   91159    0    91102    17     9     8    15     0     8    0
mtagpl      96       42    0        4     2     1     1     1     0     8    0
mbufpl     256   146624    0   146344    22     3    19    19     0     8    0
bufpl      280     3972    0      117   276     0   276   276     0     8    0
anonpl      16    60651    0    43032    74     2    72    72     0   107    0
amapchunkpl 152    3470    0     3278    24     6    18    22     0   158   10
amappl16   192     2502    0     1577    47     0    47    47     0     8    0
amappl15   184        2    0        0     1     0     1     1     0     8    0
amappl14   176      170    0      168     1     0     1     1     0     8    0
amappl13   168       26    0       23     1     0     1     1     0     8    0
amappl12   160       22    0       20     1     0     1     1     0     8    0
amappl11   152      213    0      203     1     0     1     1     0     8    0
amappl10   144       14    0       10     1     0     1     1     0     8    0
amappl9    136      359    0      358     1     0     1     1     0     8    0
amappl8    128      303    0      267     2     0     2     2     0     8    0
amappl7    120      111    0       98     1     0     1     1     0     8    0
amappl6    112       30    0       24     1     0     1     1     0     8    0
amappl5    104      308    0      297     1     0     1     1     0     8    0
amappl4     96      601    0      572     1     0     1     1     0     8    0
amappl3     88      305    0      295     1     0     1     1     0     8    0
amappl2     80     3571    0     3513     2     0     2     2     0     8    0
amappl1     72    21136    0    20738    24    15     9    17     0     8    0
amappl      80     1227    0     1173     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       12    0        0     1     0     1     1     0     8    0
uaddrrnd    24      548    0      535     1     0     1     1     0     8    0
uaddrbest   32        2    0        0     1     0     1     1     0     8    0
uaddr       24      548    0      535     1     0     1     1     0     8    0
vmmpekpl   168     7289    0     7263     2     0     2     2     0     8    0
vmmpepl    168    72579    0    70657   122    27    95   114     0   357    6
vmsppl     272      547    0      535     2     1     1     2     0     8    0
pdppl      4096    1102    0     1070     6     1     5     6     0     8    0
pvpl        32   196238    0   175624   175     2   173   173     0   265    4
pmappl     200      547    0      535     1     0     1     1     0     8    0
extentpl    40       53    0       36     1     0     1     1     0     8    0
phpool     112      254    0       24     7     0     7     7     0     8    0
ddb> machine ddbcpu 0
No such command
ddb> trace
vio_rxeof(ffff80000017a000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018
vio_rx_intr(ffff80000017a050) at vio_rx_intr+0x4d sys/dev/pv/if_vio.c:1056
virtio_check_vqs(ffff80000002ea00) at virtio_check_vqs+0x150 sys/dev/pv/virtio.c:228
intr_handler(ffff80001d65ea20,ffff800000655380) at intr_handler+0x4d sys/arch/amd64/amd64/intr.c:537
Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f
acpicpu_idle() at acpicpu_idle+0x322 sys/dev/acpi/acpicpu.c:1187
sched_idle(ffffffff8273fff0) at sched_idle+0x2ba sys/kern/kern_sched.c:178
end trace frame: 0x0, count: -7
ddb> machine ddbcpu 1
No such command
ddb> trace
vio_rxeof(ffff80000017a000) at vio_rxeof+0x191 sys/dev/pv/if_vio.c:1018
vio_rx_intr(ffff80000017a050) at vio_rx_intr+0x4d sys/dev/pv/if_vio.c:1056
virtio_check_vqs(ffff80000002ea00) at virtio_check_vqs+0x150 sys/dev/pv/virtio.c:228
intr_handler(ffff80001d65ea20,ffff800000655380) at intr_handler+0x4d sys/arch/amd64/amd64/intr.c:537
Xintr_ioapic_edge19_untramp() at Xintr_ioapic_edge19_untramp+0x19f
acpicpu_idle() at acpicpu_idle+0x322 sys/dev/acpi/acpicpu.c:1187
sched_idle(ffffffff8273fff0) at sched_idle+0x2ba sys/kern/kern_sched.c:178
end trace frame: 0x0, count: -7

Crashes (6058):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-openbsd-main 2020/08/05 05:36 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-main 2020/08/05 05:11 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-multicore 2020/08/05 04:47 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-multicore 2020/08/05 04:25 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-multicore 2020/08/05 04:05 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-multicore 2020/08/05 03:32 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-main 2020/08/05 03:12 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-main 2020/08/05 02:47 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-multicore 2020/08/05 02:22 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-main 2020/08/05 01:58 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-main 2020/08/05 01:24 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-multicore 2020/08/05 00:54 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-main 2020/08/05 00:24 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-multicore 2020/08/04 23:52 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-multicore 2020/08/04 23:17 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-multicore 2020/08/04 22:47 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-multicore 2020/08/04 22:08 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-multicore 2020/08/04 21:34 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-main 2020/08/04 20:51 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-main 2020/08/04 20:18 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-multicore 2020/08/04 19:35 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-multicore 2020/08/04 18:47 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-multicore 2020/08/04 18:00 openbsd fd07ab7ef78f 43f1389d .config log report
ci-openbsd-main 2020/08/03 22:39 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-main 2020/08/03 22:04 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-multicore 2020/08/03 21:40 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-multicore 2020/08/03 21:22 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-main 2020/08/03 20:58 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-multicore 2020/08/03 20:25 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-multicore 2020/08/03 19:59 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-multicore 2020/08/03 19:30 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-main 2020/08/03 19:03 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-multicore 2020/08/03 18:33 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-main 2020/08/03 18:01 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-main 2020/08/03 17:25 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-main 2020/08/03 17:09 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-multicore 2020/08/03 16:45 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-multicore 2020/08/03 16:14 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-main 2020/08/03 15:42 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-multicore 2020/08/03 15:11 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-main 2020/08/03 14:47 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-main 2020/08/03 14:12 openbsd 02ddb7a22afb 63a73341 .config log report
ci-openbsd-multicore 2019/11/17 00:20 openbsd d8449269f3d4 d5696d51 .config log report