From a258c6d988bf695e01fa7b25988b8a253b560c0f Mon Sep 17 00:00:00 2001
From: Henry Gabryjelski <henrygab@users.noreply.github.com>
Date: Tue, 12 Mar 2019 12:57:51 -0700
Subject: [PATCH] Avoid returning uninitialized memory

---
 src/usb/msc_uf2.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/usb/msc_uf2.c b/src/usb/msc_uf2.c
index 4f9109a..4682154 100644
--- a/src/usb/msc_uf2.c
+++ b/src/usb/msc_uf2.c
@@ -64,6 +64,7 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
 {
   void const* response = NULL;
   uint16_t resplen = 0;
+  memset(buffer, 0, bufsize);
 
   switch ( scsi_cmd[0] )
   {
@@ -114,6 +115,7 @@ int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer,
 int32_t tud_msc_read10_cb (uint8_t lun, uint32_t lba, uint32_t offset, void* buffer, uint32_t bufsize)
 {
   (void) lun;
+  memset(buffer, 0, bufsize);
 
   // since we return block size each, offset should always be zero
   TU_ASSERT(offset == 0, -1);