clear message structure before filling it in

This change clears the message structure before filling it in. This prevents uninitialized stack data from vfs leaking to a file system driver.
2019-10-11 22:36:14 +02:00 · 2019-10-11 22:36:14 +02:00 · a8d533d2c9
commit a8d533d2c9
parent d51e668f60
1 changed files with 1 additions and 0 deletions
--- a/minix/servers/vfs/request.c
+++ b/minix/servers/vfs/request.c
@ -1202,6 +1202,7 @@ int req_utime(endpoint_t fs_e, ino_t inode_nr, struct timespec * actimespec,
  assert(actimespec != NULL);
  assert(modtimespec != NULL);

+  memset(&m, 0, sizeof(m));
  /* Fill in request message */
  m.m_type = REQ_UTIME;
  m.m_vfs_fs_utime.inode = inode_nr;