fs: fuse: Avoid possible buffer overflow
Checks path's size before copying it to local variable.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
(cherry picked from commit 3267bdc4b78bd773b59498c686b4914b3b1c0596)
diff --git a/subsys/fs/fuse_fs_access.c b/subsys/fs/fuse_fs_access.c
index 8453c65..55673a3 100644
--- a/subsys/fs/fuse_fs_access.c
+++ b/subsys/fs/fuse_fs_access.c
@@ -65,8 +65,15 @@
static bool is_mount_point(const char *path)
{
char dir_path[PATH_MAX];
+ size_t len;
- sprintf(dir_path, "%s", path);
+ len = strlen(path);
+ if (len >= sizeof(dir_path)) {
+ return false;
+ }
+
+ memcpy(dir_path, path, len);
+ dir_path[len] = '\0';
return strcmp(dirname(dir_path), "/") == 0;
}
