From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 29D923B9930; Tue, 21 Jul 2026 22:04:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784671489; cv=none; b=tush2tNmMQLBV2SwhD5ZSlVcExEGkzaUI7JKfVL1s1SlBGcRygsMyHC/0t05UYrPi+Uk5rzwH6YMWmu0wwUVZpdJXhQ8WmNm+Dkpc2hkV+3czpTyxepSc7z3OC2Xk8D0m9Ef+baAqw0H/oSbSlaM+0QP6co5wsmO/avg3Ywnh4Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784671489; c=relaxed/simple; bh=MRzWV19l2wClbPMFRxsqPdsTb4XUY9KaUK7bwjMIJdw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=AQiBh222LwbtxIII2VlWHInrCol7stIgKl4vP575iaWTDTUccHxYN5JC4RRYxyxd0/PuVtWysTzyEyFflf3KJzCktWnS9xCj7n0QivGgmsN8UVDfQeao02CScchu4NHNOR9JGZyIcQMEf9VsAmuxLeaiQQJNz1w4ggJstlegJbk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=dTJ778Jy; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="dTJ778Jy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 910D71F000E9; Tue, 21 Jul 2026 22:04:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784671488; bh=jks99vpFs5NlLZedBXmpopj1fzdHvtz0NnL6fc0hQHo=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=dTJ778Jyt/TxkVZFqVEK7ApMELTYO4oOYNGTpNvgVuARsTK2SKfNVpefrQNmgAW0c OH0a/fWP34ucjN7GJQ1NbQDdqe9b+qeKI150e8i3qyzYgMzwLQoftAaZvFl2MmMjcR TlVi5yd5bif9/Q7MIgaltHvVxkpbeluQasQrA5vY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tristan Madani , =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= , Jeff Johnson , Sasha Levin Subject: [PATCH 5.15 222/843] wifi: ath9k: fix OOB access from firmware tx status queue ID Date: Tue, 21 Jul 2026 17:17:37 +0200 Message-ID: <20260721152411.009009724@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152405.946368001@linuxfoundation.org> References: <20260721152405.946368001@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tristan Madani [ Upstream commit 7ce2f118a2389e8f0a64068c6fe7cc7d40639be0 ] ath_tx_edma_tasklet() accesses sc->tx.txq[ts.qid] where ts.qid is a 4-bit hardware field (0-15), but the txq array only has ATH9K_NUM_TX_QUEUES (10) entries. A qid >= 10 causes an OOB array access. Add a bounds check on ts.qid before using it as an array index. Fixes: fce041beb03f ("ath9k: unify edma and non-edma tx code, improve tx fifo handling") Signed-off-by: Tristan Madani Acked-by: Toke Høiland-Jørgensen Link: https://patch.msgid.link/20260415222343.1540564-1-tristmd@gmail.com Signed-off-by: Jeff Johnson Signed-off-by: Sasha Levin --- drivers/net/wireless/ath/ath9k/xmit.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 84c68aefc171a7..cd175d9e729df3 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -2695,6 +2695,11 @@ void ath_tx_edma_tasklet(struct ath_softc *sc) continue; } + if (ts.qid >= ATH9K_NUM_TX_QUEUES) { + ath_dbg(common, XMIT, "invalid qid %d\n", ts.qid); + continue; + } + txq = &sc->tx.txq[ts.qid]; ath_txq_lock(sc, txq); -- 2.53.0