validate whether addr is null before constructing slice

YangKeao · YangKeao · commit d8d85b912fec · 2023-01-19T16:23:39.000+08:00
Signed-off-by: YangKeao &lt;yangkeao@chunibyo.icu&gt;
diff --git a/src/addr_validate.rs b/src/addr_validate.rs
@@ -59,6 +59,10 @@ fn open_pipe() -> nix::Result<()> {
 }
 
 pub fn validate(addr: *const libc::c_void) -> bool {
+    if addr.is_null() {
+        return false
+    }
+
     const CHECK_LENGTH: usize = 2 * size_of::<*const libc::c_void>() / size_of::<u8>();
 
     // read data in the pipe

Original file line number	Diff line number	Diff line change
`@@ -59,6 +59,10 @@ fn open_pipe() -> nix::Result<()> {`
`59`	`59`	`}`
`60`	`60`
`61`	`61`	`pub fn validate(addr: *const libc::c_void) -> bool {`
	`62`	`+ if addr.is_null() {`
	`63`	`+ return false`
	`64`	`+ }`
	`65`	`+`
`62`	`66`	`const CHECK_LENGTH: usize = 2 * size_of::<*const libc::c_void>() / size_of::<u8>();`
`63`	`67`
`64`	`68`	`// read data in the pipe`