1 files changed, 17 insertions, 13 deletions
diff --git a/compat/mingw.c b/compat/mingw.c
index 8aa3ed57c9..29d3f09768 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -1546,7 +1546,7 @@ static int is_msys2_sh(const char *cmd)
 		return ret;
 	}
 
-	if (ends_with(cmd, "\\sh.exe")) {
+	if (ends_with(cmd, "\\sh.exe") || ends_with(cmd, "/sh.exe")) {
 		static char *sh;
 
 		if (!sh)
@@ -2278,7 +2278,11 @@ struct passwd *getpwuid(int uid)
 	p->pw_name = user_name;
 	p->pw_gecos = get_extended_user_info(NameDisplay);
 	if (!p->pw_gecos)
-		p->pw_gecos = "unknown";
+		/*
+		 * Data returned by getpwuid(3P) is treated as internal and
+		 * must never be written to or freed.
+		 */
+		p->pw_gecos = (char *) "unknown";
 	p->pw_dir = NULL;
 
 	initialized = 1;
@@ -2799,16 +2803,16 @@ int is_path_owned_by_current_sid(const char *path, struct strbuf *report)
 			strbuf_addf(report, "'%s' is on a file system that does "
 				    "not record ownership\n", path);
 		} else if (report) {
-			LPSTR str1, str2, str3, str4, to_free1 = NULL,
-			    to_free3 = NULL, to_local_free2 = NULL,
-			    to_local_free4 = NULL;
+			PCSTR str1, str2, str3, str4;
+			LPSTR to_free1 = NULL, to_free3 = NULL,
+			    to_local_free2 = NULL, to_local_free4 = NULL;
 
-			if (user_sid_to_user_name(sid, &str1))
-				to_free1 = str1;
+			if (user_sid_to_user_name(sid, &to_free1))
+				str1 = to_free1;
 			else
 				str1 = "(inconvertible)";
-			if (ConvertSidToStringSidA(sid, &str2))
-				to_local_free2 = str2;
+			if (ConvertSidToStringSidA(sid, &to_local_free2))
+				str2 = to_local_free2;
 			else
 				str2 = "(inconvertible)";
 
@@ -2821,13 +2825,13 @@ int is_path_owned_by_current_sid(const char *path, struct strbuf *report)
 				str4 = "(invalid)";
 			} else {
 				if (user_sid_to_user_name(current_user_sid,
-							  &str3))
-					to_free3 = str3;
+							  &to_free3))
+					str3 = to_free3;
 				else
 					str3 = "(inconvertible)";
 				if (ConvertSidToStringSidA(current_user_sid,
-							   &str4))
-					to_local_free4 = str4;
+							   &to_local_free4))
+					str4 = to_local_free4;
 				else
 					str4 = "(inconvertible)";
 			}