From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0D5C02C1595; Tue, 6 Jan 2026 17:46:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767721587; cv=none; b=iG3HtYl86J4EC3Err2FcRrZjIA4rtQJXQ/hHWFqU9Xg+W9auYmwMB51G3fAMOcHWUqQvXMKj6ZQVU5E3KEhtc1VoDitwYjRK+RK6yn8Ja86Xi9NzNfCznjB6qtOFG8ASEmrjPSevLxYLWhZ5xv/eZbcx6OsetCQkEttITJJb1VU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767721587; c=relaxed/simple; bh=Tu+Zj78WEgJYj5sUJVedW8QY+lKnnJ2AGxHE6sOEmk4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DTpzbnM73HIdhZZvMqaBeZbQ3OnlnCcv7cxM4aN348dlgYXH67vaNSNymBPykyWdWPQOOTr4Q4DZsGOJfWlrI8HqiBKRC2yJer7+biAzGPZQPYUFeH3IVGCrp02Jsmmu0CiYsaYP//9002v6214IXHac6HU+KanX4MHNIwUD8Qw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=c3ejMmew; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="c3ejMmew" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 83F58C116C6; Tue, 6 Jan 2026 17:46:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1767721586; bh=Tu+Zj78WEgJYj5sUJVedW8QY+lKnnJ2AGxHE6sOEmk4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=c3ejMmewXyvee4dbRzuNQ9TjDc5tAhRtMgZJdfm15shRQl+GGg4bHF3p2/6P9790m z+VEOLEJjPf0Q8WzdNcgFDetyxMuf8WbUYFztiipdfnsI9GFQpyUU/ad4BuPtqY58q DfFiQxaYOWtXIPZp9Ec6ItBgqEUma+KqR+hsI4Mg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Morning Star , Ping-Ke Shih , Sasha Levin Subject: [PATCH 6.18 013/312] wifi: rtlwifi: 8192cu: fix tid out of range in rtl92cu_tx_fill_desc() Date: Tue, 6 Jan 2026 18:01:27 +0100 Message-ID: <20260106170548.333868369@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260106170547.832845344@linuxfoundation.org> References: <20260106170547.832845344@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Morning Star [ Upstream commit dd39edb445f07400e748da967a07d5dca5c5f96e ] TID getting from ieee80211_get_tid() might be out of range of array size of sta_entry->tids[], so check TID is less than MAX_TID_COUNT. Othwerwise, UBSAN warn: UBSAN: array-index-out-of-bounds in drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c:514:30 index 10 is out of range for type 'rtl_tid_data [9]' Fixes: 8ca4cdef9329 ("wifi: rtlwifi: rtl8192cu: Fix TX aggregation") Signed-off-by: Morning Star Signed-off-by: Ping-Ke Shih Link: https://patch.msgid.link/1764232628-13625-1-git-send-email-pkshih@realtek.com Signed-off-by: Sasha Levin --- drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c index aa702ba7c9f5..d6c35e8d02a5 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c @@ -511,7 +511,8 @@ void rtl92cu_tx_fill_desc(struct ieee80211_hw *hw, if (sta) { sta_entry = (struct rtl_sta_info *)sta->drv_priv; tid = ieee80211_get_tid(hdr); - agg_state = sta_entry->tids[tid].agg.agg_state; + if (tid < MAX_TID_COUNT) + agg_state = sta_entry->tids[tid].agg.agg_state; ampdu_density = sta->deflink.ht_cap.ampdu_density; } -- 2.51.0