diff options
| -rw-r--r-- | amd64/isel.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/amd64/isel.c b/amd64/isel.c index e5202cb..22e1e14 100644 --- a/amd64/isel.c +++ b/amd64/isel.c @@ -588,6 +588,8 @@ amd64_isel(Fn *fn) err("invalid alloc size %"PRId64, sz); sz = (sz + n-1) & -n; sz /= 4; + if (sz > INT_MAX - fn->slot) + die("alloc too large"); fn->tmp[i->to.val].slot = fn->slot; fn->slot += sz; *i = (Ins){.op = Onop}; |