<p>lynxis lazus has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.osmocom.org/c/libosmocore/+/22648">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">gprs_ns2_frgre: check iph/ip6h before passing them to rx functions<br><br>With IPv4 and IPv6 support it's not guaranteed that iph/ip6h is valid.<br><br>Related CID#214288<br><br>Change-Id: If9015906917e3ad11d14b84c29d64f28a3158144<br>---<br>M src/gb/gprs_ns2_frgre.c<br>1 file changed, 8 insertions(+), 2 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/48/22648/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/src/gb/gprs_ns2_frgre.c b/src/gb/gprs_ns2_frgre.c</span><br><span>index 2c5fe2f..2087681 100644</span><br><span>--- a/src/gb/gprs_ns2_frgre.c</span><br><span>+++ b/src/gb/gprs_ns2_frgre.c</span><br><span>@@ -351,11 +351,17 @@</span><br><span>       switch (osmo_ntohs(greh->ptype)) {</span><br><span>        case GRE_PTYPE_IPv4:</span><br><span>                 /* IPv4 messages might be GRE keepalives */</span><br><span style="color: hsl(0, 100%, 40%);">-             *error = handle_rx_gre_ipv4(bfd, msg, iph, greh);</span><br><span style="color: hsl(120, 100%, 40%);">+             if (iph)</span><br><span style="color: hsl(120, 100%, 40%);">+                      *error = handle_rx_gre_ipv4(bfd, msg, iph, greh);</span><br><span style="color: hsl(120, 100%, 40%);">+             else</span><br><span style="color: hsl(120, 100%, 40%);">+                  *error = -EIO;</span><br><span>               goto out_err;</span><br><span>                break;</span><br><span>       case GRE_PTYPE_IPv6:</span><br><span style="color: hsl(0, 100%, 40%);">-            *error = handle_rx_gre_ipv6(bfd, msg, ip6h, greh);</span><br><span style="color: hsl(120, 100%, 40%);">+            if (ip6h)</span><br><span style="color: hsl(120, 100%, 40%);">+                     *error = handle_rx_gre_ipv6(bfd, msg, ip6h, greh);</span><br><span style="color: hsl(120, 100%, 40%);">+            else</span><br><span style="color: hsl(120, 100%, 40%);">+                  *error = -EIO;</span><br><span>               goto out_err;</span><br><span>                break;</span><br><span>       case GRE_PTYPE_FR:</span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.osmocom.org/c/libosmocore/+/22648">change 22648</a>. To unsubscribe, or for help writing mail filters, visit <a href="https://gerrit.osmocom.org/settings">settings</a>.</p><div itemscope itemtype="http://schema.org/EmailMessage"><div itemscope itemprop="action" itemtype="http://schema.org/ViewAction"><link itemprop="url" href="https://gerrit.osmocom.org/c/libosmocore/+/22648"/><meta itemprop="name" content="View Change"/></div></div>

<div style="display:none"> Gerrit-Project: libosmocore </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-Change-Id: If9015906917e3ad11d14b84c29d64f28a3158144 </div>
<div style="display:none"> Gerrit-Change-Number: 22648 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: lynxis lazus <lynxis@fe80.eu> </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>