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[2a02:a463:a071:0:8f3f:3afb:28f6:19c0]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c168744bd40sm38743766b.43.2026.07.15.07.23.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Jul 2026 07:23:47 -0700 (PDT) From: Hari Mishal To: Amit Shah , Arnd Bergmann , Greg Kroah-Hartman , Gerd Hoffmann , "Michael S . Tsirkin" , Jason Wang , David Hildenbrand , Henrik Rydberg Cc: Xuan Zhuo , =?UTF-8?q?Eugenio=20P=C3=A9rez?= , virtualization@lists.linux.dev, linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, Hari Mishal Subject: [PATCH 0/4] virtio: validate device-reported values across drivers Date: Wed, 15 Jul 2026 16:22:39 +0200 Message-ID: <20260715142337.22811-1-harimishal1@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit These four patches harden virtio-mem, virtio_input, and virtio_console against untrusted values coming from the device/backend side of the virtio interface. The fourth fixes a use-after-free in virtio_console caused by a missing refcount. Hari Mishal (4): virtio-mem: validate device-reported block size virtio_input: validate device-reported multitouch slot count virtio_console: avoid NULL portdev dereference in in_intr() virtio_console: take a kref in find_port_by_vq() to fix port UAF drivers/char/virtio_console.c | 18 +++++++++++++++++- drivers/virtio/virtio_input.c | 4 ++++ drivers/virtio/virtio_mem.c | 7 +++++++ 3 files changed, 28 insertions(+), 1 deletion(-) -- 2.43.0