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    <title>Most recent entries from all</title>
    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Thu, 01 Oct 2026 00:22:36 +0000</lastBuildDate>
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      <title>CVE-2022-50829 — wifi: ath9k: hif_usb: Fix use-after-free in ath9k_hif_usb_reg_in_cb()</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2022-50829</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: ath9k: hif_usb: Fix use-after-free in ath9k_hif_usb_reg_in_cb()&lt;/p&gt;
&lt;p&gt;It is possible that skb is freed in ath9k_htc_rx_msg(), then
usb_submit_urb() fails and we try to free skb again. It causes
use-after-free bug. Moreover, if alloc_skb() fails, urb-&amp;gt;context becomes
NULL but rx_buf is not freed and there can be a memory leak.&lt;/p&gt;
&lt;p&gt;The patch removes unnecessary nskb and makes skb processing more clear: it
is supposed that ath9k_htc_rx_msg() either frees old skb or passes its
managing to another callback function.&lt;/p&gt;
&lt;p&gt;Found by Linux Verification Center (linuxtesting.org) with Syzkaller.&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: ath9k: hif_usb: Fix use-after-free in ath9k_hif_usb_reg_in_cb()&lt;/p&gt;
&lt;p&gt;It is possible that skb is freed in ath9k_htc_rx_msg(), then
usb_submit_urb() fails and we try to free skb again. It causes
use-after-free bug. Moreover, if alloc_skb() fails, urb-&amp;gt;context becomes
NULL but rx_buf is not freed and there can be a memory leak.&lt;/p&gt;
&lt;p&gt;The patch removes unnecessary nskb and makes skb processing more clear: it
is supposed that ath9k_htc_rx_msg() either frees old skb or passes its
managing to another callback function.&lt;/p&gt;
&lt;p&gt;Found by Linux Verification Center (linuxtesting.org) with Syzkaller.&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2022-50829</guid>
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