validate whether addr is null before constructing slice

Signed-off-by: YangKeao <[email protected]>
tikv · Jan 19, 2023 · 83aff0f · 83aff0f
1 parent 0760534
commit 83aff0f
Showing 1 changed file with 4 additions and 0 deletions.
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