Fuzz added support for i64 and fix crash in fuzzing

trussed-dev · Oct 2, 2024 · 6cf847e · 6cf847e
1 parent c2c10d4
commit 6cf847e
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Showing 2 changed files with 7 additions and 5 deletions.
diff --git a/fuzz/fuzz_targets/fuzz_target_1.rs b/fuzz/fuzz_targets/fuzz_target_1.rs
@@ -12,8 +12,7 @@ enum AllEnums {
     U16(u16),
     I32(i32),
     U32(u32),
-    // Not implemented
-    // I64(i64),
+    I64(i64),
     U64(u64),
     Struct(Struct),
     Array([Struct; 4]),

diff --git a/src/de.rs b/src/de.rs
@@ -229,9 +229,12 @@ impl<'de> Deserializer<'de> {
         Ok(())
     }
 
-    fn ignore_array(&mut self, major: u8, mult: u32) -> Result<()> {
-        let length = self.raw_deserialize_u32(major)?;
-        for _ in 0..length * mult {
+    fn ignore_array(&mut self, major: u8, mult: usize) -> Result<()> {
+        let length = self.raw_deserialize_u32(major)? as usize;
+        let Some(real_length) = length.checked_mul(mult) else {
+            return Err(Error::InexistentSliceToArrayError);
+        };
+        for _ in 0..real_length {
             self.ignore()?;
         }
         Ok(())