diff --git a/block/curl.c b/block/curl.c
index 5223ce8790d9ec9438a9d33bb36828a129a83121..c9c457486db19fe1397d1cd368f3c56ca89f1e13 100644
--- a/block/curl.c
+++ b/block/curl.c
@@ -309,7 +309,7 @@ static int curl_open(BlockDriverState *bs, const char *filename, int flags)
 
     static int inited = 0;
 
-    file = strdup(filename);
+    file = qemu_strdup(filename);
     s->readahead_size = READ_AHEAD_SIZE;
 
     /* Parse a trailing ":readahead=#:" param, if present. */
diff --git a/block/vvfat.c b/block/vvfat.c
index 063f7318cf12d0046f19bdf5eeee978472d32e91..c1acb3586481b09531e2860335432970d51cc81f 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -882,7 +882,7 @@ static int init_directories(BDRVVVFATState* s,
     mapping->dir_index = 0;
     mapping->info.dir.parent_mapping_index = -1;
     mapping->first_mapping_index = -1;
-    mapping->path = strdup(dirname);
+    mapping->path = qemu_strdup(dirname);
     i = strlen(mapping->path);
     if (i > 0 && mapping->path[i - 1] == '/')
 	mapping->path[i - 1] = '\0';
@@ -1632,10 +1632,10 @@ static uint32_t get_cluster_count_for_direntry(BDRVVVFATState* s,
 
 	    /* rename */
 	    if (strcmp(basename, basename2))
-		schedule_rename(s, cluster_num, strdup(path));
+		schedule_rename(s, cluster_num, qemu_strdup(path));
 	} else if (is_file(direntry))
 	    /* new file */
-	    schedule_new_file(s, strdup(path), cluster_num);
+	    schedule_new_file(s, qemu_strdup(path), cluster_num);
 	else {
 	    assert(0);
 	    return 0;
@@ -1752,10 +1752,10 @@ static int check_directory_consistency(BDRVVVFATState *s,
 	mapping->mode &= ~MODE_DELETED;
 
 	if (strcmp(basename, basename2))
-	    schedule_rename(s, cluster_num, strdup(path));
+	    schedule_rename(s, cluster_num, qemu_strdup(path));
     } else
 	/* new directory */
-	schedule_mkdir(s, cluster_num, strdup(path));
+	schedule_mkdir(s, cluster_num, qemu_strdup(path));
 
     lfn_init(&lfn);
     do {
diff --git a/net.c b/net.c
index 6ef93e615c8db9d2de230fc1b988213d763ba4f7..8e951ca9daee05d91026812ed54fd0d1d62fcad3 100644
--- a/net.c
+++ b/net.c
@@ -96,7 +96,7 @@ int parse_host_src_port(struct sockaddr_in *haddr,
                         struct sockaddr_in *saddr,
                         const char *input_str)
 {
-    char *str = strdup(input_str);
+    char *str = qemu_strdup(input_str);
     char *host_str = str;
     char *src_str;
     const char *src_str2;
diff --git a/slirp/misc.c b/slirp/misc.c
index c76ad8fefdf183c1927a3f598678da3baffee3ca..b68af6d7a0df991dd0ebd927c56541c39c324337 100644
--- a/slirp/misc.c
+++ b/slirp/misc.c
@@ -179,7 +179,7 @@ fork_exec(struct socket *so, const char *ex, int do_pty)
 		   close(s);
 
 		i = 0;
-		bptr = strdup(ex); /* No need to free() this */
+		bptr = qemu_strdup(ex); /* No need to free() this */
 		if (do_pty == 1) {
 			/* Setup "slirp.telnetd -x" */
 			argv[i++] = "slirp.telnetd";