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[92.242.248.17]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43fe4cb1365sm50429463f8f.7.2026.04.22.12.26.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 22 Apr 2026 12:26:51 -0700 (PDT) From: Jakov Novak To: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mauro Carvalho Chehab , Antti Palosaari , Shuah Khan , Jakov Novak Subject: [PATCH 0/1] media: dvb-usb-v2: ce6230: fix syzkaller bug Date: Wed, 22 Apr 2026 21:26:43 +0200 Message-ID: <20260422192644.21814-1-jakovnovak30@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This patch fixes a syzkaller bug which was reported in the usb core after sending a urb_control_msg. The main problem that caused this was the ce6230_ctrl_msg function trying to send a read control message of size 0, which then caused the system to panic after. The solution was to add a check in this function to check if the message has a greater than zero size before sending it, otherwise we log the error and return. Jakov Novak (1): media: dvb-usb-v2: ce6230: fix bug when sending usb_control_msg of size 0 drivers/media/usb/dvb-usb-v2/ce6230.c | 7 +++++++ 1 file changed, 7 insertions(+) -- 2.53.0