diff --git a/fs/squashfs/inode.c b/fs/squashfs/inode.c
index 95a9ff9e23997569d4f53810cc977764bfa46e24..3cc84b5376a7b7625a82a49a7f73f0c60b5df87a 100644
--- a/fs/squashfs/inode.c
+++ b/fs/squashfs/inode.c
@@ -200,6 +200,10 @@ int squashfs_read_inode(struct inode *inode, long long ino)
 		xattr_id = le32_to_cpu(sqsh_ino->xattr);
 		set_nlink(inode, le32_to_cpu(sqsh_ino->nlink));
 		inode->i_size = le64_to_cpu(sqsh_ino->file_size);
+		if (inode->i_size < 0) {
+			err = -EINVAL;
+			goto failed_read;
+		}
 		inode->i_op = &squashfs_inode_ops;
 		inode->i_fop = &generic_ro_fops;
 		inode->i_mode |= S_IFREG;