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Diffstat (limited to 'src/interp/linear/load.c')
-rw-r--r--src/interp/linear/load.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/src/interp/linear/load.c b/src/interp/linear/load.c
index afc6154..38294c4 100644
--- a/src/interp/linear/load.c
+++ b/src/interp/linear/load.c
@@ -9,6 +9,7 @@
#include <nanowasm/nw.h>
#include <nanowasm/linear.h>
+#include <nw/linear.h>
#include <nw/interp.h>
#include <nw/mem.h>
#include <nw/log.h>
@@ -17,7 +18,21 @@ enum nw_state nwp_linear_load(struct nw_interp *const i,
struct nw_sm_io *const io, const unsigned long offset)
{
const struct nw_interp_cfg *const cfg = &i->cfg;
- const enum nw_state n = nwp_mem_load(&cfg->linear, io, offset, cfg->user);
+ enum nw_state n;
+
+ if (nwp_linear_check(i, offset, io->n))
+ {
+ static const char *const exc = "out-of-bounds read access to "
+ "linear memory";
+
+#ifdef NW_LOG
+ nwp_log("%s, addr=%#lx, sz=%#lx\n", exc, offset, io->n);
+#endif
+ i->exception = exc;
+ return NW_FATAL;
+ }
+
+ n = nwp_mem_load(&cfg->linear, io, offset, cfg->user);
if (n == NW_FATAL)
{