diff --git a/pkg/fatfs/fatfs_vfs/fatfs_vfs.c b/pkg/fatfs/fatfs_vfs/fatfs_vfs.c
index 0b8b47f47c..5c6886b2f2 100644
--- a/pkg/fatfs/fatfs_vfs/fatfs_vfs.c
+++ b/pkg/fatfs/fatfs_vfs/fatfs_vfs.c
@@ -307,8 +307,6 @@ static int _fstat(vfs_file_t *filp, struct stat *buf)
     FILINFO fi;
     FRESULT res;
 
-    memset(buf, 0, sizeof(*buf));
-
     res = f_stat(fs_desc->abs_path_str_buff, &fi);
 
     if (res != FR_OK) {
diff --git a/pkg/spiffs/fs/spiffs_fs.c b/pkg/spiffs/fs/spiffs_fs.c
index bff851af00..076a0876ee 100644
--- a/pkg/spiffs/fs/spiffs_fs.c
+++ b/pkg/spiffs/fs/spiffs_fs.c
@@ -227,7 +227,6 @@ static int _statvfs(vfs_mount_t *mountp, const char *restrict path, struct statv
         return -EFAULT;
     }
     spiffs_desc_t *fs_desc = mountp->private_data;
-    memset(buf, 0, sizeof(*buf));
 
     uint32_t total;
     uint32_t used;
@@ -347,8 +346,6 @@ static int _fstat(vfs_file_t *filp, struct stat *buf)
     spiffs_stat stat;
     s32_t ret;
 
-    memset(buf, 0, sizeof(*buf));
-
     ret = SPIFFS_fstat(&fs_desc->fs, filp->private_data.value, &stat);
 
     if (ret < 0) {
diff --git a/sys/fs/constfs/constfs.c b/sys/fs/constfs/constfs.c
index d8a5da39e1..f3fcbe1c8f 100644
--- a/sys/fs/constfs/constfs.c
+++ b/sys/fs/constfs/constfs.c
@@ -144,7 +144,6 @@ static int constfs_statvfs(vfs_mount_t *mountp, const char *restrict path, struc
     }
     constfs_t *fs = mountp->private_data;
     /* clear out the stat buffer first */
-    memset(buf, 0, sizeof(*buf));
     buf->f_bsize = sizeof(uint8_t); /* block size */
     buf->f_frsize = sizeof(uint8_t); /* fundamental block size */
     fsblkcnt_t f_blocks = 0;
@@ -309,8 +308,7 @@ static int constfs_closedir(vfs_DIR *dirp)
 
 static void _constfs_write_stat(const constfs_file_t *fp, struct stat *restrict buf)
 {
-    /* clear out the stat buffer first */
-    memset(buf, 0, sizeof(*buf));
+    /* buffer is cleared by vfs already */
     buf->st_nlink = 1;
     buf->st_mode = S_IFREG | S_IRUSR | S_IRGRP | S_IROTH;
     buf->st_size = fp->size;
diff --git a/sys/posix/sockets/posix_sockets.c b/sys/posix/sockets/posix_sockets.c
index e95344b755..e0117e79fa 100644
--- a/sys/posix/sockets/posix_sockets.c
+++ b/sys/posix/sockets/posix_sockets.c
@@ -328,7 +328,6 @@ static int socket_close(vfs_file_t *filp)
 static inline int socket_fstat(vfs_file_t *filp, struct stat *buf)
 {
     (void)filp;
-    memset(buf, 0, sizeof(struct stat));
     buf->st_mode |= (S_IFSOCK | S_IRWXU | S_IRWXG | S_IRWXO);
     buf->st_blksize = SOCKET_BLKSIZE;
     return 0;
diff --git a/sys/vfs/vfs.c b/sys/vfs/vfs.c
index c3de601eeb..bb81cf71bc 100644
--- a/sys/vfs/vfs.c
+++ b/sys/vfs/vfs.c
@@ -1046,7 +1046,6 @@ int vfs_sysop_stat_from_fstat(vfs_mount_t *mountp, const char *restrict path, st
     if (err < 0) {
         return err;
     }
-    memset(buf, 0, sizeof(*buf));
     err = f_op->fstat(&opened, buf);
     f_op->close(&opened);
     return err;