diff -up ntfs-3g_ntfsprogs-2017.3.23/src/lowntfs-3g.c.CVE-2019-9755 ntfs-3g_ntfsprogs-2017.3.23/src/lowntfs-3g.c
--- ntfs-3g_ntfsprogs-2017.3.23/src/lowntfs-3g.c.CVE-2019-9755	2019-03-29 16:08:22.359920075 -0400
+++ ntfs-3g_ntfsprogs-2017.3.23/src/lowntfs-3g.c	2019-03-29 16:08:28.237794169 -0400
@@ -4323,7 +4323,8 @@ int main(int argc, char *argv[])
 	else {
 		ctx->abs_mnt_point = (char*)ntfs_malloc(PATH_MAX);
 		if (ctx->abs_mnt_point) {
-			if (getcwd(ctx->abs_mnt_point,
+			if ((strlen(opts.mnt_point) < PATH_MAX)
+			    && getcwd(ctx->abs_mnt_point,
 				     PATH_MAX - strlen(opts.mnt_point) - 1)) {
 				strcat(ctx->abs_mnt_point, "/");
 				strcat(ctx->abs_mnt_point, opts.mnt_point);
@@ -4331,6 +4332,9 @@ int main(int argc, char *argv[])
 			/* Solaris also wants the absolute mount point */
 				opts.mnt_point = ctx->abs_mnt_point;
 #endif /* defined(__sun) && defined (__SVR4) */
+			} else {
+				free(ctx->abs_mnt_point);
+				ctx->abs_mnt_point = (char*)NULL;
 			}
 		}
 	}
diff -up ntfs-3g_ntfsprogs-2017.3.23/src/ntfs-3g.c.CVE-2019-9755 ntfs-3g_ntfsprogs-2017.3.23/src/ntfs-3g.c
--- ntfs-3g_ntfsprogs-2017.3.23/src/ntfs-3g.c.CVE-2019-9755	2019-03-29 16:08:54.691227528 -0400
+++ ntfs-3g_ntfsprogs-2017.3.23/src/ntfs-3g.c	2019-03-29 16:09:40.362249397 -0400
@@ -4123,7 +4123,8 @@ int main(int argc, char *argv[])
 	else {
 		ctx->abs_mnt_point = (char*)ntfs_malloc(PATH_MAX);
 		if (ctx->abs_mnt_point) {
-			if (getcwd(ctx->abs_mnt_point,
+			if ((strlen(opts.mnt_point) < PATH_MAX)
+			    && getcwd(ctx->abs_mnt_point,
 				     PATH_MAX - strlen(opts.mnt_point) - 1)) {
 				strcat(ctx->abs_mnt_point, "/");
 				strcat(ctx->abs_mnt_point, opts.mnt_point);
@@ -4131,6 +4132,9 @@ int main(int argc, char *argv[])
 			/* Solaris also wants the absolute mount point */
 				opts.mnt_point = ctx->abs_mnt_point;
 #endif /* defined(__sun) && defined (__SVR4) */
+			} else {
+				free(ctx->abs_mnt_point);
+				ctx->abs_mnt_point = (char*)NULL;
 			}
 		}
 	}
