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    <title>Most recent entries from all</title>
    <link>https://db.gcve.eu</link>
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    <lastBuildDate>Wed, 30 Sep 2026 12:20:23 +0000</lastBuildDate>
    <item>
      <title>CVE-2026-90407 — wifi: ath11k: fix overreads in ath11k_wmi_process_csa_switch_count_event()</title>
      <link>https://db.gcve.eu/vuln/cve-2026-90407</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: ath11k: fix overreads in ath11k_wmi_process_csa_switch_count_event()&lt;/p&gt;
&lt;p&gt;There is no policy entry for WMI_TAG_PDEV_CSA_SWITCH_COUNT_STATUS_EVENT, so
the parse infrastructure does not enforce a minimum length for the event
struct. Additionally, the num_vdevs field is taken directly from firmware
and used as a loop bound over the vdev_ids array without checking that it
fits within the TLV payload. Either condition can cause an out-of-bounds
read.&lt;/p&gt;
&lt;p&gt;Add a TLV policy entry for WMI_TAG_PDEV_CSA_SWITCH_COUNT_STATUS_EVENT so
the parse infrastructure enforces a minimum length for the fixed-size event
struct. Add a helper ath11k_wmi_tlv_data_len() to recover the payload
length of a parsed TLV from the header preceding its data pointer. Use it
in ath11k_wmi_process_csa_switch_count_event() to bound num_vdevs before
the loop.&lt;/p&gt;
&lt;p&gt;Compile tested only.&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: ath11k: fix overreads in ath11k_wmi_process_csa_switch_count_event()&lt;/p&gt;
&lt;p&gt;There is no policy entry for WMI_TAG_PDEV_CSA_SWITCH_COUNT_STATUS_EVENT, so
the parse infrastructure does not enforce a minimum length for the event
struct. Additionally, the num_vdevs field is taken directly from firmware
and used as a loop bound over the vdev_ids array without checking that it
fits within the TLV payload. Either condition can cause an out-of-bounds
read.&lt;/p&gt;
&lt;p&gt;Add a TLV policy entry for WMI_TAG_PDEV_CSA_SWITCH_COUNT_STATUS_EVENT so
the parse infrastructure enforces a minimum length for the fixed-size event
struct. Add a helper ath11k_wmi_tlv_data_len() to recover the payload
length of a parsed TLV from the header preceding its data pointer. Use it
in ath11k_wmi_process_csa_switch_count_event() to bound num_vdevs before
the loop.&lt;/p&gt;
&lt;p&gt;Compile tested only.&lt;/p&gt;</content:encoded>
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