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-rw-r--r--fs/squashfs/dir.c3
-rw-r--r--fs/squashfs/namei.c3
-rw-r--r--fs/squashfs/squashfs_fs.h3
3 files changed, 5 insertions, 4 deletions
diff --git a/fs/squashfs/dir.c b/fs/squashfs/dir.c
index 9dfe2ce0fb7..4a812bfcdd5 100644
--- a/fs/squashfs/dir.c
+++ b/fs/squashfs/dir.c
@@ -173,8 +173,7 @@ static int squashfs_readdir(struct file *file, void *dirent, filldir_t filldir)
dir_count = le32_to_cpu(dirh.count) + 1;
- /* dir_count should never be larger than 256 */
- if (dir_count > 256)
+ if (dir_count > SQUASHFS_DIR_COUNT)
goto failed_read;
while (dir_count--) {
diff --git a/fs/squashfs/namei.c b/fs/squashfs/namei.c
index 0682b38d7e3..66c70fc8c80 100644
--- a/fs/squashfs/namei.c
+++ b/fs/squashfs/namei.c
@@ -177,8 +177,7 @@ static struct dentry *squashfs_lookup(struct inode *dir, struct dentry *dentry,
dir_count = le32_to_cpu(dirh.count) + 1;
- /* dir_count should never be larger than 256 */
- if (dir_count > 256)
+ if (dir_count > SQUASHFS_DIR_COUNT)
goto data_error;
while (dir_count--) {
diff --git a/fs/squashfs/squashfs_fs.h b/fs/squashfs/squashfs_fs.h
index e8e14645de9..b2f9f623ac9 100644
--- a/fs/squashfs/squashfs_fs.h
+++ b/fs/squashfs/squashfs_fs.h
@@ -52,6 +52,9 @@
/* Max length of filename (not 255) */
#define SQUASHFS_NAME_LEN 256
+/* Max value for directory header count*/
+#define SQUASHFS_DIR_COUNT 256
+
#define SQUASHFS_INVALID_FRAG (0xffffffffU)
#define SQUASHFS_INVALID_XATTR (0xffffffffU)
#define SQUASHFS_INVALID_BLK (-1LL)