hotfix opline out of bounds check (#3417)

realFlowControl · web-flow · commit e4f6598187be · 2025-09-17T08:11:10.000-06:00
diff --git a/profiling/src/profiling/stack_walking.rs b/profiling/src/profiling/stack_walking.rs
@@ -118,7 +118,8 @@ fn opline_in_bounds(op_array: &zend_op_array, opline: *const zend_op) -> bool {
     }
 
     let begin = opcodes_start as usize;
-    let end = begin + (op_array.last as usize);
+    // `op_array.last` is a count of `zend_op` sized elements to be found in `op_array.opcodes`
+    let end = begin + (op_array.last as usize) * core::mem::size_of::<zend_op>();
     (begin..end).contains(&(opline as usize))
 }
 

Original file line number	Diff line number	Diff line change
`@@ -118,7 +118,8 @@ fn opline_in_bounds(op_array: &zend_op_array, opline: *const zend_op) -> bool {`
`118`	`118`	`}`
`119`	`119`
`120`	`120`	`let begin = opcodes_start as usize;`
`121`		`- let end = begin + (op_array.last as usize);`
	`121`	+ // `op_array.last` is a count of `zend_op` sized elements to be found in `op_array.opcodes`
	`122`	`+ let end = begin + (op_array.last as usize) * core::mem::size_of::<zend_op>();`
`122`	`123`	`(begin..end).contains(&(opline as usize))`
`123`	`124`	`}`
`124`	`125`