diff --git a/archive.c b/archive.c
index 78b0a39..a8397e6 100644
--- a/archive.c
+++ b/archive.c
@@ -109,7 +109,7 @@ static const struct attr_check *get_archive_attrs(const char *path)
 	static struct attr_check *check;
 	if (!check)
 		check = attr_check_initl("export-ignore", "export-subst", NULL);
-	return git_check_attr(path, check) ? NULL : check;
+	return git_check_attr(&the_index, path, check) ? NULL : check;
 }
 
 static int check_attr_export_ignore(const struct attr_check *check)
diff --git a/attr.c b/attr.c
index 067fb9e..863fad3 100644
--- a/attr.c
+++ b/attr.c
@@ -708,10 +708,10 @@ static struct attr_stack *read_attr_from_array(const char **list)
  * another thread could potentially be calling into the attribute system.
  */
 static enum git_attr_direction direction;
-static struct index_state *use_index;
+static const struct index_state *use_index;
 
 void git_attr_set_direction(enum git_attr_direction new_direction,
-			    struct index_state *istate)
+			    const struct index_state *istate)
 {
 	if (is_bare_repository() && new_direction != GIT_ATTR_INDEX)
 		BUG("non-INDEX attr direction in a bare repo");
@@ -743,13 +743,24 @@ static struct attr_stack *read_attr_from_file(const char *path, int macro_ok)
 	return res;
 }
 
-static struct attr_stack *read_attr_from_index(const char *path, int macro_ok)
+static struct attr_stack *read_attr_from_index(const struct index_state *istate,
+					       const char *path,
+					       int macro_ok)
 {
 	struct attr_stack *res;
 	char *buf, *sp;
 	int lineno = 0;
+	const struct index_state *to_read_from;
 
-	buf = read_blob_data_from_index(use_index ? use_index : &the_index, path, NULL);
+	/*
+	 * Temporary workaround for c24f3abace (apply: file commited
+	 * with CRLF should roundtrip diff and apply - 2017-08-19)
+	 */
+	to_read_from = use_index ? use_index : istate;
+	if (!to_read_from)
+		return NULL;
+
+	buf = read_blob_data_from_index(to_read_from, path, NULL);
 	if (!buf)
 		return NULL;
 
@@ -768,15 +779,16 @@ static struct attr_stack *read_attr_from_index(const char *path, int macro_ok)
 	return res;
 }
 
-static struct attr_stack *read_attr(const char *path, int macro_ok)
+static struct attr_stack *read_attr(const struct index_state *istate,
+				    const char *path, int macro_ok)
 {
 	struct attr_stack *res = NULL;
 
 	if (direction == GIT_ATTR_INDEX) {
-		res = read_attr_from_index(path, macro_ok);
+		res = read_attr_from_index(istate, path, macro_ok);
 	} else if (!is_bare_repository()) {
 		if (direction == GIT_ATTR_CHECKOUT) {
-			res = read_attr_from_index(path, macro_ok);
+			res = read_attr_from_index(istate, path, macro_ok);
 			if (!res)
 				res = read_attr_from_file(path, macro_ok);
 		} else if (direction == GIT_ATTR_CHECKIN) {
@@ -788,7 +800,7 @@ static struct attr_stack *read_attr(const char *path, int macro_ok)
 				 * We allow operation in a sparsely checked out
 				 * work tree, so read from it.
 				 */
-				res = read_attr_from_index(path, macro_ok);
+				res = read_attr_from_index(istate, path, macro_ok);
 		}
 	}
 
@@ -859,7 +871,8 @@ static void push_stack(struct attr_stack **attr_stack_p,
 	}
 }
 
-static void bootstrap_attr_stack(struct attr_stack **stack)
+static void bootstrap_attr_stack(const struct index_state *istate,
+				 struct attr_stack **stack)
 {
 	struct attr_stack *e;
 
@@ -883,7 +896,7 @@ static void bootstrap_attr_stack(struct attr_stack **stack)
 	}
 
 	/* root directory */
-	e = read_attr(GITATTRIBUTES_FILE, 1);
+	e = read_attr(istate, GITATTRIBUTES_FILE, 1);
 	push_stack(stack, e, xstrdup(""), 0);
 
 	/* info frame */
@@ -896,7 +909,8 @@ static void bootstrap_attr_stack(struct attr_stack **stack)
 	push_stack(stack, e, NULL, 0);
 }
 
-static void prepare_attr_stack(const char *path, int dirlen,
+static void prepare_attr_stack(const struct index_state *istate,
+			       const char *path, int dirlen,
 			       struct attr_stack **stack)
 {
 	struct attr_stack *info;
@@ -917,7 +931,7 @@ static void prepare_attr_stack(const char *path, int dirlen,
 	 * .gitattributes in deeper directories to shallower ones,
 	 * and finally use the built-in set as the default.
 	 */
-	bootstrap_attr_stack(stack);
+	bootstrap_attr_stack(istate, stack);
 
 	/*
 	 * Pop the "info" one that is always at the top of the stack.
@@ -973,7 +987,7 @@ static void prepare_attr_stack(const char *path, int dirlen,
 		strbuf_add(&pathbuf, path + pathbuf.len, (len - pathbuf.len));
 		strbuf_addf(&pathbuf, "/%s", GITATTRIBUTES_FILE);
 
-		next = read_attr(pathbuf.buf, 0);
+		next = read_attr(istate, pathbuf.buf, 0);
 
 		/* reset the pathbuf to not include "/.gitattributes" */
 		strbuf_setlen(&pathbuf, len);
@@ -1095,7 +1109,9 @@ static void determine_macros(struct all_attrs_item *all_attrs,
  * If check->check_nr is non-zero, only attributes in check[] are collected.
  * Otherwise all attributes are collected.
  */
-static void collect_some_attrs(const char *path, struct attr_check *check)
+static void collect_some_attrs(const struct index_state *istate,
+			       const char *path,
+			       struct attr_check *check)
 {
 	int i, pathlen, rem, dirlen;
 	const char *cp, *last_slash = NULL;
@@ -1114,7 +1130,7 @@ static void collect_some_attrs(const char *path, struct attr_check *check)
 		dirlen = 0;
 	}
 
-	prepare_attr_stack(path, dirlen, &check->stack);
+	prepare_attr_stack(istate, path, dirlen, &check->stack);
 	all_attrs_init(&g_attr_hashmap, check);
 	determine_macros(check->all_attrs, check->stack);
 
@@ -1136,11 +1152,13 @@ static void collect_some_attrs(const char *path, struct attr_check *check)
 	fill(path, pathlen, basename_offset, check->stack, check->all_attrs, rem);
 }
 
-int git_check_attr(const char *path, struct attr_check *check)
+int git_check_attr(const struct index_state *istate,
+		   const char *path,
+		   struct attr_check *check)
 {
 	int i;
 
-	collect_some_attrs(path, check);
+	collect_some_attrs(istate, path, check);
 
 	for (i = 0; i < check->nr; i++) {
 		size_t n = check->items[i].attr->attr_nr;
@@ -1153,12 +1171,13 @@ int git_check_attr(const char *path, struct attr_check *check)
 	return 0;
 }
 
-void git_all_attrs(const char *path, struct attr_check *check)
+void git_all_attrs(const struct index_state *istate,
+		   const char *path, struct attr_check *check)
 {
 	int i;
 
 	attr_check_reset(check);
-	collect_some_attrs(path, check);
+	collect_some_attrs(istate, path, check);
 
 	for (i = 0; i < check->all_attrs_nr; i++) {
 		const char *name = check->all_attrs[i].attr->name;
diff --git a/attr.h b/attr.h
index 4634001..3daca3c 100644
--- a/attr.h
+++ b/attr.h
@@ -1,6 +1,8 @@
 #ifndef ATTR_H
 #define ATTR_H
 
+struct index_state;
+
 /* An attribute is a pointer to this opaque structure */
 struct git_attr;
 
@@ -60,13 +62,15 @@ void attr_check_free(struct attr_check *check);
  */
 const char *git_attr_name(const struct git_attr *);
 
-int git_check_attr(const char *path, struct attr_check *check);
+int git_check_attr(const struct index_state *istate,
+		   const char *path, struct attr_check *check);
 
 /*
  * Retrieve all attributes that apply to the specified path.
  * check holds the attributes and their values.
  */
-void git_all_attrs(const char *path, struct attr_check *check);
+void git_all_attrs(const struct index_state *istate,
+		   const char *path, struct attr_check *check);
 
 enum git_attr_direction {
 	GIT_ATTR_CHECKIN,
@@ -74,7 +78,7 @@ enum git_attr_direction {
 	GIT_ATTR_INDEX
 };
 void git_attr_set_direction(enum git_attr_direction new_direction,
-			    struct index_state *istate);
+			    const struct index_state *istate);
 
 void attr_start(void);
 
diff --git a/builtin/check-attr.c b/builtin/check-attr.c
index 91444dc..f7b5999 100644
--- a/builtin/check-attr.c
+++ b/builtin/check-attr.c
@@ -63,9 +63,9 @@ static void check_attr(const char *prefix,
 		prefix_path(prefix, prefix ? strlen(prefix) : 0, file);
 
 	if (collect_all) {
-		git_all_attrs(full_path, check);
+		git_all_attrs(&the_index, full_path, check);
 	} else {
-		if (git_check_attr(full_path, check))
+		if (git_check_attr(&the_index, full_path, check))
 			die("git_check_attr died");
 	}
 	output_attr(check, file);
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 4391504..3ff6da4 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -945,7 +945,7 @@ static int no_try_delta(const char *path)
 
 	if (!check)
 		check = attr_check_initl("delta", NULL);
-	if (git_check_attr(path, check))
+	if (git_check_attr(&the_index, path, check))
 		return 0;
 	if (ATTR_FALSE(check->items[0].value))
 		return 1;
diff --git a/convert.c b/convert.c
index 7907efd..1935bde 100644
--- a/convert.c
+++ b/convert.c
@@ -1303,7 +1303,7 @@ static void convert_attrs(struct conv_attrs *ca, const char *path)
 		git_config(read_convert_config, NULL);
 	}
 
-	if (!git_check_attr(path, check)) {
+	if (!git_check_attr(&the_index, path, check)) {
 		struct attr_check_item *ccheck = check->items;
 		ca->crlf_action = git_path_check_crlf(ccheck + 4);
 		if (ca->crlf_action == CRLF_UNDEFINED)
diff --git a/dir.c b/dir.c
index 21e6f25..29fbbd4 100644
--- a/dir.c
+++ b/dir.c
@@ -281,7 +281,7 @@ static int match_attrs(const char *name, int namelen,
 {
 	int i;
 
-	git_check_attr(name, item->attr_check);
+	git_check_attr(&the_index, name, item->attr_check);
 	for (i = 0; i < item->attr_match_nr; i++) {
 		const char *value;
 		int matched;
diff --git a/ll-merge.c b/ll-merge.c
index a6ad2ec..0e2800f 100644
--- a/ll-merge.c
+++ b/ll-merge.c
@@ -371,7 +371,7 @@ int ll_merge(mmbuffer_t *result_buf,
 	if (!check)
 		check = attr_check_initl("merge", "conflict-marker-size", NULL);
 
-	if (!git_check_attr(path, check)) {
+	if (!git_check_attr(&the_index, path, check)) {
 		ll_driver_name = check->items[0].value;
 		if (check->items[1].value) {
 			marker_size = atoi(check->items[1].value);
@@ -398,7 +398,7 @@ int ll_merge_marker_size(const char *path)
 
 	if (!check)
 		check = attr_check_initl("conflict-marker-size", NULL);
-	if (!git_check_attr(path, check) && check->items[0].value) {
+	if (!git_check_attr(&the_index, path, check) && check->items[0].value) {
 		marker_size = atoi(check->items[0].value);
 		if (marker_size <= 0)
 			marker_size = DEFAULT_CONFLICT_MARKER_SIZE;
diff --git a/userdiff.c b/userdiff.c
index 36af25e..f3f4be5 100644
--- a/userdiff.c
+++ b/userdiff.c
@@ -278,7 +278,7 @@ struct userdiff_driver *userdiff_find_by_path(const char *path)
 		check = attr_check_initl("diff", NULL);
 	if (!path)
 		return NULL;
-	if (git_check_attr(path, check))
+	if (git_check_attr(&the_index, path, check))
 		return NULL;
 
 	if (ATTR_TRUE(check->items[0].value))
diff --git a/ws.c b/ws.c
index a07caed..5b67b42 100644
--- a/ws.c
+++ b/ws.c
@@ -78,7 +78,7 @@ unsigned whitespace_rule(const char *pathname)
 	if (!attr_whitespace_rule)
 		attr_whitespace_rule = attr_check_initl("whitespace", NULL);
 
-	if (!git_check_attr(pathname, attr_whitespace_rule)) {
+	if (!git_check_attr(&the_index, pathname, attr_whitespace_rule)) {
 		const char *value;
 
 		value = attr_whitespace_rule->items[0].value;