wireshark: fix CVE-2023-1992 RPCoRDMA dissector crash

Upstream-Status: Backport from https://gitlab.com/colin.mcinnes/wireshark/-/commit/3c8be14c827f1587da3c2b3bb0d9c04faff5741

Signed-off-by: Vivek Kumbhar <vkumbhar@mvista.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

2 files changed, 62 insertions, 0 deletions

diff --git a/meta-networking/recipes-support/wireshark/files/CVE-2023-1992.patch b/meta-networking/recipes-support/wireshark/files/CVE-2023-1992.patch
new file mode 100644
index 000000000..6bddf975d
--- /dev/null
+++ b/meta-networking/recipes-support/wireshark/files/CVE-2023-1992.patch
@@ -0,0 +1,61 @@
+From 3c8be14c827f1587da3c2b3bb0d9c04faff57413 Mon Sep 17 00:00:00 2001
+From: John Thacker <johnthacker@gmail.com>
+Date: Sun, 19 Mar 2023 15:16:39 -0400
+Subject: [PATCH] RPCoRDMA: Frame end cleanup for global write offsets
+
+Add a frame end routine for a global which is assigned to packet
+scoped memory. It really should be made proto data, but is used
+in a function in the header (that doesn't take the packet info
+struct as an argument) and this fix needs to be made in stable
+branches.
+
+Fix #18852
+
+Upstream-Status: Backport [https://gitlab.com/colin.mcinnes/wireshark/-/commit/3c8be14c827f1587da3c2b3bb0d9c04faff5741]
+CVE: CVE-2023-1992
+Signed-off-by: Vivek Kumbhar <vkumbhar@mvista.com>
+---
+ epan/dissectors/packet-rpcrdma.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+diff --git a/epan/dissectors/packet-rpcrdma.c b/epan/dissectors/packet-rpcrdma.c
+index 76085c7..9d57bae 100644
+--- a/epan/dissectors/packet-rpcrdma.c
++++ b/epan/dissectors/packet-rpcrdma.c
+@@ -24,6 +24,7 @@
+ #include <epan/addr_resolv.h>
+
+ #include "packet-rpcrdma.h"
++#include "packet-frame.h"
+ #include "packet-infiniband.h"
+ #include "packet-iwarp-ddp-rdmap.h"
+
+@@ -270,6 +271,18 @@ void rpcrdma_insert_offset(gint offset)
+     wmem_array_append_one(gp_rdma_write_offsets, offset);
+ }
+
++/*
++ * Reset the array of write offsets at the end of the frame. These
++ * are packet scoped, so they don't need to be freed, but we want
++ * to ensure that the global doesn't point to no longer allocated
++ * memory in a later packet.
++ */
++static void
++reset_write_offsets(void)
++{
++    gp_rdma_write_offsets = NULL;
++}
++
+ /* Get conversation state, it is created if it does not exist */
+ static rdma_conv_info_t *get_rdma_conv_info(packet_info *pinfo)
+ {
+@@ -1392,6 +1405,7 @@ dissect_rpcrdma(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data
+             if (write_size > 0 && !pinfo->fd->visited) {
+                 /* Initialize array of write chunk offsets */
+                 gp_rdma_write_offsets = wmem_array_new(wmem_packet_scope(), sizeof(gint));
++                register_frame_end_routine(pinfo, reset_write_offsets);
+                 TRY {
+                     /*
+                      * Call the upper layer dissector to get a list of offsets
+--
+2.40.1
diff --git a/meta-networking/recipes-support/wireshark/wireshark_3.4.12.bb b/meta-networking/recipes-support/wireshark/wireshark_3.4.12.bb
index 19489a8bc..f233b4253 100644
--- a/meta-networking/recipes-support/wireshark/wireshark_3.4.12.bb
+++ b/meta-networking/recipes-support/wireshark/wireshark_3.4.12.bb
@@ -25,6 +25,7 @@ SRC_URI += " \
     file://CVE-2023-0667.patch \
     file://CVE-2023-0668.patch \
     file://CVE-2023-2906.patch \
+    file://CVE-2023-1992.patch \
 "
 
 UPSTREAM_CHECK_URI = "https://1.as.dl.wireshark.org/src"