On Jul 18, 2017, at 3:48 PM, Adam Buchbinder <abuchbinder@xxxxxxxxxx> wrote: > > The os_type here is large enough to be negative when interpreted as a > signed integer. > > This test case was generated by american fuzzy lop, starting from a > base filesystem image from files.fuzzing-project.org. > > Signed-off-by: Adam Buchbinder <abuchbinder@xxxxxxxxxx> Reviewed-by: Andreas Dilger <adilger@xxxxxxxxx> > --- > tests/d_bad_ostype/expect | 1 + > tests/d_bad_ostype/name | 1 + > tests/d_bad_ostype/script | 21 +++++++++++++++++++++ > 3 files changed, 23 insertions(+) > create mode 100644 tests/d_bad_ostype/expect > create mode 100644 tests/d_bad_ostype/name > create mode 100644 tests/d_bad_ostype/script > > diff --git a/tests/d_bad_ostype/expect b/tests/d_bad_ostype/expect > new file mode 100644 > index 00000000..b00318c4 > --- /dev/null > +++ b/tests/d_bad_ostype/expect > @@ -0,0 +1 @@ > +Filesystem OS type: (unknown os) > diff --git a/tests/d_bad_ostype/name b/tests/d_bad_ostype/name > new file mode 100644 > index 00000000..3da887a8 > --- /dev/null > +++ b/tests/d_bad_ostype/name > @@ -0,0 +1 @@ > +handle bad (negative) os_type > diff --git a/tests/d_bad_ostype/script b/tests/d_bad_ostype/script > new file mode 100644 > index 00000000..992a3030 > --- /dev/null > +++ b/tests/d_bad_ostype/script > @@ -0,0 +1,21 @@ > +dd if=/dev/zero of=$TMPFILE bs=1k count=64 > /dev/null 2>&1 > +$MKE2FS -q -b 1024 $TMPFILE > +$DEBUGFS -w -R 'set_super_value creator_os 0xf0000000' $TMPFILE > + > +OUT=$test_name.log > +EXP=$test_dir/expect > +$DUMPE2FS $TMPFILE 2>&1 | sed -f $cmd_dir/filter.sed | grep 'Filesystem OS type:' > $OUT > + > +rm -f $TMPFILE > +cmp -s $OUT $EXP > +status=$? > + > +if [ "$status" = 0 ] ; then > + echo "$test_name: $test_description: ok" > + touch $test_name.ok > +else > + echo "$test_name: $test_description: failed" > + diff $DIFF_OPTS $EXP $OUT > $test_name.failed > + rm -f $test_name.tmp > +fi > +unset OUT EXP > -- > 2.14.0.rc0.284.gd933b75aa4-goog > Cheers, Andreas
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