<html>
<head>
<base href="https://bugs.dpdk.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8" class="bz_new_table">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - Use after free in cnxk_ethdev"
href="https://bugs.dpdk.org/show_bug.cgi?id=1554">1554</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Use after free in cnxk_ethdev
</td>
</tr>
<tr>
<th>Product</th>
<td>DPDK
</td>
</tr>
<tr>
<th>Version</th>
<td>24.11
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>UNCONFIRMED
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Priority</th>
<td>Normal
</td>
</tr>
<tr>
<th>Component</th>
<td>ethdev
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dev@dpdk.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>stephen@networkplumber.org
</td>
</tr>
<tr>
<th>Target Milestone</th>
<td>---
</td>
</tr></table>
<p>
<div class="bz_comment_block">
<pre class="bz_comment_text">If GCC malloc function tracing attributes are added, the the following error is
detected at compile time:
../drivers/net/cnxk/cnxk_ethdev_sec.c: In function
‘cnxk_nix_inl_custom_meta_pool_cb’:
../drivers/common/cnxk/roc_platform.h:196:32: warning: pointer ‘hp’ used after
‘rte_mempool_free’ [-Wuse-after-free]
196 | #define plt_free rte_free
../drivers/net/cnxk/cnxk_ethdev_sec.c:140:17: note: in expansion of macro
‘plt_free’
140 | plt_free(hp->pool_config);
| ^~~~~~~~
../drivers/net/cnxk/cnxk_ethdev_sec.c:139:17: note: call to ‘rte_mempool_free’
here
139 | rte_mempool_free(hp);
| ^~~~~~~~~~~~~~~~~~~~
</pre>
</div>
</p>
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