ipcd: use first segment size for limits of mmap

2026-02-19 13:23:35 -07:00
parent c2c7020063
commit a8e9a5e73b
1 changed files with 4 additions and 3 deletions
@@ -217,11 +217,12 @@ impl SchemeSync for ShmScheme {
            .buffer
        {
            Some(ref mut buf) => {
-                if total_size > buf.len() {
+                // TODO: This will not work well if there's multiple segments!
+                let segment = buf.segments.first().ok_or_else(|| Error::new(ERANGE))?;
+                if total_size > segment.size {
                    return Err(Error::new(ERANGE));
                }
-                /// TODO: This will not work well if there's multiple segments!
-                Ok(buf.as_ptr() + offset as usize)
+                Ok(segment.base + offset as usize)
            }
            //TODO: this should be only handled by ftruncate
            ref mut buf @ None => {