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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Tue, 29 Sep 2026 20:16:30 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-68198 — wifi: ath6kl: fix use-after-free in aggr_reset_state()</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2026-68198</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: ath6kl: fix use-after-free in aggr_reset_state()&lt;/p&gt;
&lt;p&gt;The aggr_reset_state() function uses timer_delete() (non-synchronous)
for the aggregation timer before proceeding to delete TID state and
before the structure is freed by callers like aggr_module_destroy().&lt;/p&gt;
&lt;p&gt;If the timer callback (aggr_timeout) is executing when aggr_reset_state()
is called, the callback will continue to access aggr_conn fields like
rx_tid[] and stat[] which may be freed immediately after by
kfree(aggr_info-&amp;gt;aggr_conn) in aggr_module_destroy().&lt;/p&gt;
&lt;p&gt;Additionally, the timer callback can re-arm itself via mod_timer() while
aggr_reset_state() is running, creating a more complex race condition.&lt;/p&gt;
&lt;p&gt;Use timer_delete_sync() instead to ensure any running timer callback
has completed before returning.&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: ath6kl: fix use-after-free in aggr_reset_state()&lt;/p&gt;
&lt;p&gt;The aggr_reset_state() function uses timer_delete() (non-synchronous)
for the aggregation timer before proceeding to delete TID state and
before the structure is freed by callers like aggr_module_destroy().&lt;/p&gt;
&lt;p&gt;If the timer callback (aggr_timeout) is executing when aggr_reset_state()
is called, the callback will continue to access aggr_conn fields like
rx_tid[] and stat[] which may be freed immediately after by
kfree(aggr_info-&amp;gt;aggr_conn) in aggr_module_destroy().&lt;/p&gt;
&lt;p&gt;Additionally, the timer callback can re-arm itself via mod_timer() while
aggr_reset_state() is running, creating a more complex race condition.&lt;/p&gt;
&lt;p&gt;Use timer_delete_sync() instead to ensure any running timer callback
has completed before returning.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2026-68198</guid>
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