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server: Limit the number of allocated handles before running out of memory.

This commit is contained in:
Alexandre Julliard 2008-12-04 16:12:04 +01:00
parent 9960ab2418
commit 9434e19965
2 changed files with 6 additions and 5 deletions
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10
server/handle.c
View File

@ -64,6 +64,7 @@ static struct handle_table *global_table;
#define RESERVED_ALL (RESERVED_INHERIT | RESERVED_CLOSE_PROTECT)
#define MIN_HANDLE_ENTRIES 32
#define MAX_HANDLE_ENTRIES 0x00ffffff
/* handle to table index conversion */
@ -191,13 +192,12 @@ struct handle_table *alloc_handle_table( struct process *process, int count )
static int grow_handle_table( struct handle_table *table )
{
struct handle_entry *new_entries;
int count = table->count;
int count = min( table->count * 2, MAX_HANDLE_ENTRIES );
if (count >= INT_MAX / 2) return 0;
count *= 2;
if (!(new_entries = realloc( table->entries, count * sizeof(struct handle_entry) )))
if (count == table->count ||
!(new_entries = realloc( table->entries, count * sizeof(struct handle_entry) )))
{
set_error( STATUS_NO_MEMORY );
set_error( STATUS_INSUFFICIENT_RESOURCES );
return 0;
}
table->entries = new_entries;

1
server/trace.c
View File

@ -4582,6 +4582,7 @@ static const struct
{ "HANDLE_NOT_CLOSABLE", STATUS_HANDLE_NOT_CLOSABLE },
{ "ILLEGAL_FUNCTION", STATUS_ILLEGAL_FUNCTION },
{ "INSTANCE_NOT_AVAILABLE", STATUS_INSTANCE_NOT_AVAILABLE },
{ "INSUFFICIENT_RESOURCES", STATUS_INSUFFICIENT_RESOURCES },
{ "INVALID_CID", STATUS_INVALID_CID },
{ "INVALID_DEVICE_REQUEST", STATUS_INVALID_DEVICE_REQUEST },
{ "INVALID_FILE_FOR_SECTION", STATUS_INVALID_FILE_FOR_SECTION },