[RTEMS Project] #4326: objectextendinformation.c: Dereference after null check error spotted by Coverity

RTEMS trac trac at rtems.org
Wed Mar 10 13:56:34 UTC 2021


#4326: objectextendinformation.c: Dereference after null check error spotted by
Coverity
------------------------+--------------------
  Reporter:  Ryan Long  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  normal     |  Milestone:  6.1
 Component:  score      |    Version:  6
  Severity:  normal     |   Keywords:
Blocked By:             |   Blocking:
------------------------+--------------------
 CID 26033: Dereference after null check in _Objects_Extend_information().

 {{{
 172    if ( old_maximum > extend_count ) {
 173      /*
 174       *  Copy each section of the table over. This has to be performed
 as
 175       *  separate parts as size of each block has changed.
 176       */
    CID 26033 (#1 of 1): Dereference after null check (FORWARD_NULL)11.
 var_deref_model: Passing null pointer information->object_blocks to
 memcpy, which dereferences it.
 177      memcpy(
 178        object_blocks,
 179        information->object_blocks,
 180        block_count * sizeof( *object_blocks )
 181      );
 }}}

--
Ticket URL: <http://devel.rtems.org/ticket/4326>
RTEMS Project <http://www.rtems.org/>
RTEMS Project


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