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 7F11F1D6AA; Tue, 6 Jan 2026 17:30:29 +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=1767720629; cv=none; b=RBaoHhgHG/MrcikRSVS0kddWHnYZEM34a6/uqEx1ctwclgEAuoBRBM9SiiU1iELVmvVs05Xs0AIEyfSTkppv5MJCmgx/gofkB+KS4sMZnd4s4IzLmMzpoumGhRfUxXdDn9wNn5dqAe6NEM0AhH/R68XZcGO34cpaQXf/rslyDVA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767720629; c=relaxed/simple; bh=N4f1DZjgQhk5SYq9k9J8ivOmY3MpwcCQwnMssQT2Oaw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=a+n+Ha/guN2Q2H8AyZhnU5Uv6ZPJFyFiX+y8X04KCkGXh+TBpatpbKZsSKweag0vAfQxknPWS60mqqYMaLbhUAS9Gl/Bvolv7Z0a6lE5NYZZDN+PMQyaEmtUz9ty1u2YwxNeb9lkEir0sSXmZcs500L2XkBDC/PdBV+eBcw9US0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=uX3OXzqn; 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="uX3OXzqn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C740FC116C6; Tue, 6 Jan 2026 17:30:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1767720629; bh=N4f1DZjgQhk5SYq9k9J8ivOmY3MpwcCQwnMssQT2Oaw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uX3OXzqn02PnYFmpl8waIjGvgH9I6u+HUPOSgzjlNYwb13Sp/KqNRkSfjnCXEKSWa 5F4hn6A31+o8/Z7jgc5XvCFGzEu5fC7zg+PmCYWxGPzUXwZImmIclUc0rJi6yfoL+W uh5aF3YtUFwTm0OhY+83EllqtOPzVsUCSEMnjo1E= 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 6.12 295/567] wifi: rtlwifi: 8192cu: fix tid out of range in rtl92cu_tx_fill_desc() Date: Tue, 6 Jan 2026 18:01:17 +0100 Message-ID: <20260106170502.245169129@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260106170451.332875001@linuxfoundation.org> References: <20260106170451.332875001@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 6.12-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