---

yaml --- r: 156930 b: refs/heads/master c: 28d7a6a h: refs/heads/master v: v3
git-mirror · Aug 18, 2009 · b55c2d4 · b55c2d4
1 parent 3805e69
commit b55c2d4
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 191529756633052680dd9d23ad63744ca5aa02a1
+refs/heads/master: 28d7a6ae92c099d81cbea08c20be0d2cf7ccd7ca
diff --git a/trunk/mm/nommu.c b/trunk/mm/nommu.c
@@ -919,6 +919,10 @@ static int validate_mmap_request(struct file *file,
 		if (!file->f_op->read)
 			capabilities &= ~BDI_CAP_MAP_COPY;
 
+		/* The file shall have been opened with read permission. */
+		if (!(file->f_mode & FMODE_READ))
+			return -EACCES;
+
 		if (flags & MAP_SHARED) {
 			/* do checks for writing, appending and locking */
 			if ((prot & PROT_WRITE) &&