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[Pal] Fix off-by-one in DkSetExceptionHandler

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This commit is contained in:
Michał Kowalczyk
2019-10-04 21:05:13 +02:00
parent a04e71c7fa
commit 817f516fce
1 changed files with 3 additions and 2 deletions
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Pal/src/db_exception.c
+3 -2
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@@ -31,7 +31,7 @@
#include "pal_error.h"
#include "pal_internal.h"
#define INIT_EVENT_HANDLER { .lock = LOCK_INIT }
#define INIT_EVENT_HANDLER { .lock = LOCK_INIT, .upcall = NULL }
struct pal_event_handler {
PAL_LOCK lock;
@@ -39,6 +39,7 @@ struct pal_event_handler {
};
struct pal_event_handler handlers[] = {
[0] = INIT_EVENT_HANDLER,
[PAL_EVENT_ARITHMETIC_ERROR] = INIT_EVENT_HANDLER,
[PAL_EVENT_MEMFAULT] = INIT_EVENT_HANDLER,
[PAL_EVENT_ILLEGAL] = INIT_EVENT_HANDLER,
@@ -62,7 +63,7 @@ PAL_BOL
DkSetExceptionHandler(PAL_EVENT_HANDLER handler, PAL_NUM event) {
ENTER_PAL_CALL(DkSetExceptionHandler);
if (!handler || event == 0 || event > sizeof(handlers) / sizeof(handlers[0])) {
if (!handler || event == 0 || event >= sizeof(handlers) / sizeof(handlers[0])) {
_DkRaiseFailure(PAL_ERROR_INVAL);
LEAVE_PAL_CALL_RETURN(PAL_FALSE);
}