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Fri, 06 Mar 2026 19:04:16 -0800 (PST) Received: from tux ([2601:7c0:c37c:4c00::5585]) by smtp.gmail.com with ESMTPSA id 00721157ae682-798dee66c5asm15100607b3.36.2026.03.06.19.04.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Mar 2026 19:04:15 -0800 (PST) From: Ethan Tidmore To: Sakari Ailus , Bingbu Cao , Mauro Carvalho Chehab , linux-media@vger.kernel.org Cc: Tianshu Qiu , Hans Verkuil , linux-kernel@vger.kernel.org, Ethan Tidmore , stable@vger.kernel.org Subject: [PATCH v2] media: intel/ipu6: fix error pointer dereference Date: Fri, 6 Mar 2026 21:03:55 -0600 Message-ID: <20260307030355.26840-1-ethantidmore06@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit In a error path isp->psys is confirmed to be an error pointer not NULL so this condition is true and the error pointer is dereferenced. So isp-psys should be set to NULL beforegoing to out_ipu6_bus_del_devices. Detected by Smatch: drivers/media/pci/intel/ipu6/ipu6.c:690 ipu6_pci_probe() error: 'isp->psys' dereferencing possible ERR_PTR() Fixes: 25fedc021985a ("media: intel/ipu6: add Intel IPU6 PCI device driver") Cc: stable@vger.kernel.org Signed-off-by: Ethan Tidmore --- v2: - Add stable tag. - Add check for null instead of setting isp->psys to NULL. - Add Smatch warning. drivers/media/pci/intel/ipu6/ipu6.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/pci/intel/ipu6/ipu6.c b/drivers/media/pci/intel/ipu6/ipu6.c index 34f67f4f1bb5..d033d4618169 100644 --- a/drivers/media/pci/intel/ipu6/ipu6.c +++ b/drivers/media/pci/intel/ipu6/ipu6.c @@ -686,7 +686,7 @@ static int ipu6_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) out_ipu6_rpm_put: pm_runtime_put_sync(&isp->psys->auxdev.dev); out_ipu6_bus_del_devices: - if (isp->psys) { + if (!IS_ERR_OR_NULL(isp->psys)) { ipu6_cpd_free_pkg_dir(isp->psys); ipu6_buttress_unmap_fw_image(isp->psys, &isp->psys->fw_sgt); } -- 2.53.0