From: Simon Kelley <simon@thekelleys.org.uk>
Date: Mon, 10 Feb 2025 12:26:15 +0000 (+0000)
Subject: Update plen when getting retried query from stash.
X-Git-Tag: v2.91rc5~3
X-Git-Url: https://thekelleys.org.uk/gitweb/?a=commitdiff_plain;h=717ff6adc34c24fe5aa06cb749765d0bee7061b7;p=dnsmasq.git

Update plen when getting retried query from stash.

They should be equal, but that depends on untrusted data.
---

diff --git a/src/forward.c b/src/forward.c
index c20c557..66b5b92 100644
--- a/src/forward.c
+++ b/src/forward.c
@@ -205,6 +205,7 @@ static void forward_query(int udpfd, union mysockaddr *udpaddr,
 	 may fall through below and forward the query in the packet buffer again and we
 	 want to use the same case scrambling as the first time. */
       blockdata_retrieve(forward->stash, forward->stash_len, (void *)header); 
+      plen = forward->stash_len;
 
       for (src = &forward->frec_src; src; src = src->next)
 	if (src->orig_id == id &&