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Fix #10560 - oobread crash in java class parser

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This commit is contained in:
pancake 2018-07-02 13:11:19 +02:00
parent 9cc6dd8fb0
commit d521ba905d
1 changed files with 7 additions and 2 deletions
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9
shlr/java/class.c
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@ -3633,10 +3633,12 @@ R_API RBinJavaAttrInfo *r_bin_java_exceptions_attr_new(ut8 *buffer, ut64 sz, ut6
ut32 i = 0, offset = 0;
ut64 size;
RBinJavaAttrInfo *attr = NULL;
if (sz < 8) {
return NULL;
}
attr = r_bin_java_default_attr_new (buffer, sz, buf_offset);
offset += 6;
if (attr == NULL) {
// TODO eprintf
if (!attr) {
return attr;
}
attr->type = R_BIN_JAVA_ATTR_TYPE_LINE_NUMBER_TABLE_ATTR;
@ -3653,6 +3655,9 @@ R_API RBinJavaAttrInfo *r_bin_java_exceptions_attr_new(ut8 *buffer, ut64 sz, ut6
return NULL;
}
for (i = 0; i < attr->info.exceptions_attr.number_of_exceptions; i++) {
if (offset + 2 > sz) {
break;
}
attr->info.exceptions_attr.exception_idx_table[i] = R_BIN_JAVA_USHORT (buffer, offset);
offset += 2;
}