The branch main has been updated by vmaffione:
URL:
https://cgit.FreeBSD.org/src/commit/?id=3e3314a8b7e3dd8d19a209ee2988f724e138a0ae
commit 3e3314a8b7e3dd8d19a209ee2988f724e138a0ae
Author: Vincenzo Maffione <vmaffi...@freebsd.org>
AuthorDate: 2021-09-26 13:56:33 +0000
Commit: Vincenzo Maffione <vmaffi...@freebsd.org>
CommitDate: 2021-09-26 13:56:33 +0000
netmap: fix uint32_t overflow in pool size calculation
MFC after: 1 week
---
sys/dev/netmap/netmap_mem2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sys/dev/netmap/netmap_mem2.c b/sys/dev/netmap/netmap_mem2.c
index a6be490e5b09..2b41af761c04 100644
--- a/sys/dev/netmap/netmap_mem2.c
+++ b/sys/dev/netmap/netmap_mem2.c
@@ -1702,7 +1702,7 @@ _netmap_mem_private_new(size_t size, struct
netmap_obj_params *p, int grp_id,
nm_blueprint.pools[i].name,
d->name);
if (checksz) {
- uint64_t poolsz = p[i].num * p[i].size;
+ uint64_t poolsz = (uint64_t)p[i].num * p[i].size;
if (memtotal < poolsz) {
nm_prerr("%s: request too large",
d->pools[i].name);
err = ENOMEM;
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