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[PATCH v5 5/7] net/eth: Check iovec has enough data earlier
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH v5 5/7] net/eth: Check iovec has enough data earlier |
Date: |
Wed, 10 Mar 2021 17:01:33 +0100 |
We want to check fields from ip6_ext_hdr_routing structure
and if correct read the full in6_address. Let's directly check
if our iovec contains enough data for everything, else return
early.
Suggested-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
net/eth.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/eth.c b/net/eth.c
index e870d02b0df..28cdc843a69 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -409,7 +409,7 @@ _eth_get_rss_ex_dst_addr(const struct iovec *pkt, int
pkt_frags,
size_t input_size = iov_size(pkt, pkt_frags);
size_t bytes_read;
- if (input_size < ext_hdr_offset + sizeof(*ext_hdr)) {
+ if (input_size < ext_hdr_offset + sizeof(*rthdr) + sizeof(*dst_addr)) {
return false;
}
--
2.26.2
[PATCH v5 7/7] net/eth: Add an assert() and invert if() statement to simplify code, Philippe Mathieu-Daudé, 2021/03/10
[PATCH v5 6/7] net/eth: Read ip6_ext_hdr_routing buffer before accessing it, Philippe Mathieu-Daudé, 2021/03/10