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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Mon, 28 Sep 2026 18:24:39 +0000</lastBuildDate>
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      <title>CVE-2022-50533 — wifi: mac80211: mlme: fix null-ptr deref on failed assoc</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2022-50533</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;wifi: mac80211: mlme: fix null-ptr deref on failed assoc&lt;/p&gt;
&lt;p&gt;If association to an AP without a link 0 fails, then we crash in
tracing because it assumes that either ap_mld_addr or link 0 BSS
is valid, since we clear sdata-&amp;gt;vif.valid_links and then don&amp;#39;t
add the ap_mld_addr to the struct.&lt;/p&gt;
&lt;p&gt;Since we clear also sdata-&amp;gt;vif.cfg.ap_addr, keep a local copy of
it and assign it earlier, before clearing valid_links, to fix
this.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;wifi: mac80211: mlme: fix null-ptr deref on failed assoc&lt;/p&gt;
&lt;p&gt;If association to an AP without a link 0 fails, then we crash in
tracing because it assumes that either ap_mld_addr or link 0 BSS
is valid, since we clear sdata-&amp;gt;vif.valid_links and then don&amp;#39;t
add the ap_mld_addr to the struct.&lt;/p&gt;
&lt;p&gt;Since we clear also sdata-&amp;gt;vif.cfg.ap_addr, keep a local copy of
it and assign it earlier, before clearing valid_links, to fix
this.&lt;/p&gt;</content:encoded>
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