dnsmasq: 2.92rel2 -> 2.93

Dropping the patch for CVE-2026-6507 since it has been fixed in this
tag.

(cherry picked from commit 5efefac4ae)

pkgs/by-name/dn/dnsmasq/CVE-2026-6507.patch

@@ -1,28 +0,0 @@
-From 9ad74926d4f7f34ff902e1db5235535aa813c33f Mon Sep 17 00:00:00 2001
-From: Simon Kelley <simon@thekelleys.org.uk>
-Date: Mon, 6 Apr 2026 22:22:43 +0100
-Subject: [PATCH] Fix 1-byte buffer overflow in relay_reply4()
-
-Potential SIGSEGV when using DHCPv4-relay.
-
-Thanks to Asim Viladi Oglu Manizada for finding this.
----
- src/rfc2131.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/src/rfc2131.c b/src/rfc2131.c
-index 7bdfefd..55aad03 100644
---- a/src/rfc2131.c
-+++ b/src/rfc2131.c
-@@ -3248,7 +3248,7 @@ unsigned int relay_reply4(struct dhcp_packet *mess, size_t sz, char *arrival_int
- 
- 	      /* delete agent info before return RFC 3046 para 2.1 */
- 	      *opt = OPTION_END;
--	      memset(opt + 1, 0, option_len(opt) + 2);
-+	      memset(opt + 1, 0, option_len(opt) + 1);
- 	    }
- 	}
-       else if (mess->giaddr.s_addr == relay->local.addr4.s_addr)
--- 
-2.20.1
-

pkgs/by-name/dn/dnsmasq/package.nix

@@ -30,18 +30,13 @@ let
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "dnsmasq";
-  version = "2.92rel2";
+  version = "2.93";
 
   src = fetchurl {
     url = "https://www.thekelleys.org.uk/dnsmasq/dnsmasq-${finalAttrs.version}.tar.xz";
-    hash = "sha256-Q9crjBKb3zPRe6/tyYgj9j5GtQBRKAZr8NKkcqMs4Go=";
+    hash = "sha256-DADU5cl8gwbl+5MrNIs0JpycKaDn3w6OgpWLQHCSvBk=";
   };
 
-  patches = [
-    # https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=patch;h=9ad74926d4f7f34ff902e1db5235535aa813c33f
-    ./CVE-2026-6507.patch
-  ];
-
   postPatch = lib.optionalString stdenv.hostPlatform.isLinux ''
     sed '1i#include <linux/sockios.h>' -i src/dhcp.c
   '';