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Prevent the VALUEs in args from getting garbage collected too early (#7916) 

Prevent the VALUEs in args from getting garbage collected too early.
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Kevin Backhouse 2022-06-28 13:43:51 +01:00 committed by GitHub
parent f78fb0a7e1
commit 88d62b47bf
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1 changed files with 6 additions and 5 deletions
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11
projects/ruby/fuzz_ruby_gems.c
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@ -15,6 +15,10 @@ limitations under the License.
#define ARRAYSIZE(x) (sizeof(x) / sizeof(x[0])) #define ARRAYSIZE(x) (sizeof(x) / sizeof(x[0]))
// The maximum number of arguments of any of the target functions.
// Increase as needed.
#define MAX_NARGS 2
enum RubyDataType { RDT_CString }; enum RubyDataType { RDT_CString };
struct TargetFunction { struct TargetFunction {
@ -143,12 +147,10 @@ int run_fuzz_function(struct ByteStream *bs, struct TargetFunction *fcn) {
return -1; return -1;
} }
VALUE *args = calloc(fcn->nargs_, sizeof(VALUE)); VALUE args[MAX_NARGS] = {};
if (!args) {
return -1;
}
int result = -1; int result = -1;
int i; int i;
assert(fcn->nargs_ <= MAX_NARGS);
for (i = 0; i < fcn->nargs_; i++) { for (i = 0; i < fcn->nargs_; i++) {
VALUE v = generate_value(bs, fcn->argTypes_[i]); VALUE v = generate_value(bs, fcn->argTypes_[i]);
if (!v) { if (!v) {
@ -166,7 +168,6 @@ int run_fuzz_function(struct ByteStream *bs, struct TargetFunction *fcn) {
} }
out: out:
free(args);
return result; return result;
} }