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[60.250.196.139]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2ba7bf2d72dsm18985145ad.25.2026.05.06.01.46.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 May 2026 01:46:20 -0700 (PDT) From: Joey Lu To: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, mcoquelin.stm32@gmail.com Cc: alexandre.torgue@foss.st.com, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-kernel@vger.kernel.org, Joey Lu Subject: [PATCH net 0/1] net: stmmac: dwmac-nuvoton: fix NULL pointer dereference in nvt_set_phy_intf_sel() Date: Wed, 6 May 2026 16:46:12 +0800 Message-ID: <20260506084614.192894-1-a0987203069@gmail.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260506_014622_618662_E782E4AB X-CRM114-Status: UNSURE ( 8.26 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This series fixes a NULL pointer dereference bug introduced in the initial dwmac-nuvoton glue driver. The struct nvt_priv_data::dev field was never initialized after devm_kzalloc(), leaving it NULL. When phylink later calls nvt_set_phy_intf_sel() for interface selection, the callback dereferences priv->dev via nvt_gmac_get_delay(), triggering a NULL pointer dereference. Joey Lu (1): net: stmmac: dwmac-nuvoton: fix NULL pointer dereference in nvt_set_phy_intf_sel() drivers/net/ethernet/stmicro/stmmac/dwmac-nuvoton.c | 2 ++ 1 file changed, 2 insertions(+) -- 2.43.0