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> --- 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
