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([2001:41d0:303:db6b::]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4891c318636sm168157785e9.7.2026.04.21.06.49.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Apr 2026 06:49:29 -0700 (PDT) From: Tristan Madani To: Christian Lamparter Cc: Johannes Berg , linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, Tristan Madani Subject: [PATCH v3 0/3] wifi: carl9170: firmware trust boundary hardening Date: Tue, 21 Apr 2026 13:49:25 +0000 Message-ID: <20260421134929.325662-1-tristmd@gmail.com> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Tristan Madani This series adds missing bounds checks for firmware-controlled fields in the carl9170 USB driver. Patch 1 bounds the cmd callback memcpy to prevent heap overflow from an oversized firmware response. Patch 2 fixes an off-by-two in the TX status handler. Patch 3 caps the failover copy to rx_failover_missing bytes, using min_t per Christian Lamparter. Changes in v3: - Regenerated from wireless-next with proper git format-patch. Changes in v2: - Use min_t() instead of separate if-check in patch 3, per Christian Lamparter. Tristan Madani (3): wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read wifi: carl9170: fix OOB read from off-by-two in TX status handler wifi: carl9170: fix buffer overflow in rx_stream failover path drivers/net/wireless/ath/carl9170/rx.c | 7 +++++-- drivers/net/wireless/ath/carl9170/tx.c | 2 +- 2 files changed, 6 insertions(+), 3 deletions(-) -- 2.47.3