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Fix some bugs in link_aout.c caused by using uninitialized malloc space.

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Pre-Approved by:  jkh
This commit is contained in:
Peter Wemm 1998-10-16 03:45:35 +00:00
parent 08a04a8985
commit df481e793f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=40434
1 changed files with 4 additions and 1 deletions
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5
sys/kern/link_aout.c
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@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: link_aout.c,v 1.12 1998/09/11 08:45:32 dfr Exp $
* $Id: link_aout.c,v 1.13 1998/10/09 23:49:28 peter Exp $
*/
#ifndef __alpha__
@ -108,6 +108,7 @@ link_aout_init(void* arg)
af = malloc(sizeof(struct aout_file), M_LINKER, M_NOWAIT);
if (af == NULL)
panic("link_aout_init: Can't create linker structures for kernel");
bzero(af, sizeof(*af));
af->address = 0;
af->dynamic = dp;
@ -150,6 +151,7 @@ link_aout_load_module(const char* filename, linker_file_t* result)
/* Looks like we can handle this one */
af = malloc(sizeof(struct aout_file), M_LINKER, M_WAITOK);
bzero(af, sizeof(*af));
af->address = baseptr;
/* Assume _DYNAMIC is the first data item. */
@ -216,6 +218,7 @@ link_aout_load_file(const char* filename, linker_file_t* result)
* We have an a.out file, so make some space to read it in.
*/
af = malloc(sizeof(struct aout_file), M_LINKER, M_WAITOK);
bzero(af, sizeof(*af));
af->address = malloc(header.a_text + header.a_data + header.a_bss,
M_LINKER, M_WAITOK);