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Fix a possible buffer overflow when writing to the stacktrace buffer

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This commit is contained in:
Andrew Kesterson
2026-01-10 08:42:50 -05:00
parent 3e4f0d1cda
commit f2ce97224a
1 changed files with 3 additions and 3 deletions
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6
include/akerror.h
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@@ -172,9 +172,9 @@ void error_default_logger(const char *f, ...);
#define DETECT(__err_context, __stmt) \ #define DETECT(__err_context, __stmt) \
__stmt; \ __stmt; \
if ( __err_context != NULL ) { \ if ( __err_context != NULL ) { \
__err_context->stacktracebufptr += sprintf(__err_context->stacktracebufptr, "%s:%s:%d: Detected error %d from heap (refcount %d)\n", (char *)__FILE__, (char *)__func__, __LINE__, __err_context->heapid, __err_context->refcount); \ __err_context->stacktracebufptr += snprintf(__err_context->stacktracebufptr, MAX_ERROR_STACKTRACE_BUF_LENGTH, "%s:%s:%d: Detected error %d from heap (refcount %d)\n", (char *)__FILE__, (char *)__func__, __LINE__, __err_context->heapid, __err_context->refcount); \
if ( __err_context->status != 0 ) { \ if ( __err_context->status != 0 ) { \
__err_context->stacktracebufptr += sprintf(__err_context->stacktracebufptr, "%s:%s:%d\n", (char *)__FILE__, (char *)__func__, __LINE__); \ __err_context->stacktracebufptr += snprintf(__err_context->stacktracebufptr, MAX_ERROR_STACKTRACE_BUF_LENGTH, "%s:%s:%d\n", (char *)__FILE__, (char *)__func__, __LINE__); \
break; \ break; \
} \ } \
} }
@@ -219,7 +219,7 @@ void error_default_logger(const char *f, ...);
}; \ }; \
if ( __err_context != NULL ) { \ if ( __err_context != NULL ) { \
if ( __err_context->handled == false && __pass_up == true ) { \ if ( __err_context->handled == false && __pass_up == true ) { \
__err_context->stacktracebufptr += sprintf(__err_context->stacktracebufptr, "%s:%s:%d\n", (char *)__FILE__, (char *)__func__, __LINE__); \ __err_context->stacktracebufptr += snprintf(__err_context->stacktracebufptr, MAX_ERROR_STACKTRACE_BUF_LENGTH, "%s:%s:%d\n", (char *)__FILE__, (char *)__func__, __LINE__); \
return __err_context; \ return __err_context; \
} \ } \
} \ } \