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([2001:41d0:303:db6b::]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-488fb7a06f3sm134028065e9.22.2026.04.21.06.49.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Apr 2026 06:49:17 -0700 (PDT) From: Tristan Madani To: Johannes Berg Cc: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, Tristan Madani Subject: [PATCH v3 0/5] wifi: rsi: firmware trust boundary hardening Date: Tue, 21 Apr 2026 13:49:11 +0000 Message-ID: <20260421134916.317971-1-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 RSI 91x driver (rsi_91x_main.c, rsi_91x_core.c, rsi_91x_mgmt.c). Each patch addresses a specific field that the firmware can set to an out-of-range value, causing OOB reads or infinite loops in the host driver. Changes in v3: - Regenerated from wireless-next with proper git format-patch to produce valid index hashes and clean diffs (v2 had post-processed index lines that prevented git-am application). Changes in v2: - Clarify firmware trust model in commit messages. Tristan Madani (5): wifi: rsi: fix integer underflow from firmware extended_desc in rsi_prepare_skb() wifi: rsi: fix OOB read from firmware-claimed length exceeding actual frame size wifi: rsi: fix OOB read from firmware pad_bytes in management RX path wifi: rsi: fix infinite loop when firmware sends zero-length packet wifi: rsi: fix OOB read from firmware offset field in SDIO RX path drivers/net/wireless/rsi/rsi_91x_main.c | 20 ++++++++++++++++++++ drivers/net/wireless/rsi/rsi_91x_mgmt.c | 6 ++++++ 2 files changed, 26 insertions(+) -- 2.47.3