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    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Tue, 29 Sep 2026 22:06:38 +0000</lastBuildDate>
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      <title>CVE-2025-71297 — wifi: rtw88: 8822b: Avoid WARNING in rtw8822b_config_trx_mode()</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2025-71297</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: rtw88: 8822b: Avoid WARNING in rtw8822b_config_trx_mode()&lt;/p&gt;
&lt;p&gt;rtw8822b_set_antenna() can be called from userspace when the chip is
powered off. In that case a WARNING is triggered in
rtw8822b_config_trx_mode() because trying to read the RF registers
when the chip is powered off returns an unexpected value.&lt;/p&gt;
&lt;p&gt;Call rtw8822b_config_trx_mode() in rtw8822b_set_antenna() only when
the chip is powered on.&lt;/p&gt;
&lt;p&gt;------------[ cut here ]------------
write RF mode table fail
WARNING: CPU: 0 PID: 7183 at rtw8822b.c:824 rtw8822b_config_trx_mode.constprop.0+0x835/0x840 [rtw88_8822b]
CPU: 0 UID: 0 PID: 7183 Comm: iw Tainted: G        W  OE       6.17.5-arch1-1 #1 PREEMPT(full)  01c39fc421df2af799dd5e9180b572af860b40c1
Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: LENOVO 82KR/LNVNB161216, BIOS HBCN18WW 08/27/2021
RIP: 0010:rtw8822b_config_trx_mode.constprop.0+0x835/0x840 [rtw88_8822b]
Call Trace:
 &amp;lt;TASK&amp;gt;
 rtw8822b_set_antenna+0x57/0x70 [rtw88_8822b 370206f42e5890d8d5f48eb358b759efa37c422b]
 rtw_ops_set_antenna+0x50/0x80 [rtw88_core 711c8fb4f686162be4625b1d0b8e8c6a5ac850fb]
 ieee80211_set_antenna+0x60/0x100 [mac80211 f1845d85d2ecacf3b71867635a050ece90486cf3]
 nl80211_set_wiphy+0x384/0xe00 [cfg80211 296485ee85696d2150309a6d21a7fbca83d3dbda]
 ? netdev_run_todo+0x63/0x550
 genl_family_rcv_msg_doit+0xfc/0x160
 genl_rcv_msg+0x1aa/0x2b0
 ? __pfx_nl80211_pre_doit+0x10/0x10 [cfg80211 296485ee85696d2150309a6d21…&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: rtw88: 8822b: Avoid WARNING in rtw8822b_config_trx_mode()&lt;/p&gt;
&lt;p&gt;rtw8822b_set_antenna() can be called from userspace when the chip is
powered off. In that case a WARNING is triggered in
rtw8822b_config_trx_mode() because trying to read the RF registers
when the chip is powered off returns an unexpected value.&lt;/p&gt;
&lt;p&gt;Call rtw8822b_config_trx_mode() in rtw8822b_set_antenna() only when
the chip is powered on.&lt;/p&gt;
&lt;p&gt;------------[ cut here ]------------
write RF mode table fail
WARNING: CPU: 0 PID: 7183 at rtw8822b.c:824 rtw8822b_config_trx_mode.constprop.0+0x835/0x840 [rtw88_8822b]
CPU: 0 UID: 0 PID: 7183 Comm: iw Tainted: G        W  OE       6.17.5-arch1-1 #1 PREEMPT(full)  01c39fc421df2af799dd5e9180b572af860b40c1
Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: LENOVO 82KR/LNVNB161216, BIOS HBCN18WW 08/27/2021
RIP: 0010:rtw8822b_config_trx_mode.constprop.0+0x835/0x840 [rtw88_8822b]
Call Trace:
 &amp;lt;TASK&amp;gt;
 rtw8822b_set_antenna+0x57/0x70 [rtw88_8822b 370206f42e5890d8d5f48eb358b759efa37c422b]
 rtw_ops_set_antenna+0x50/0x80 [rtw88_core 711c8fb4f686162be4625b1d0b8e8c6a5ac850fb]
 ieee80211_set_antenna+0x60/0x100 [mac80211 f1845d85d2ecacf3b71867635a050ece90486cf3]
 nl80211_set_wiphy+0x384/0xe00 [cfg80211 296485ee85696d2150309a6d21a7fbca83d3dbda]
 ? netdev_run_todo+0x63/0x550
 genl_family_rcv_msg_doit+0xfc/0x160
 genl_rcv_msg+0x1aa/0x2b0
 ? __pfx_nl80211_pre_doit+0x10/0x10 [cfg80211 296485ee85696d2150309a6d21…&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2025-71297</guid>
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