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[88.21.202.17]) by smtp.gmail.com with ESMTPSA id y185sm13370681wmy.11.2020.05.23.12.15.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 23 May 2020 12:15:19 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: Helge Deller , qemu-devel@nongnu.org, Richard Henderson , Sven Schnelle Subject: [PATCH 0/3] hw/display/artist: Fix out-of-buffer accesses found while fuzzing Date: Sat, 23 May 2020 21:15:14 +0200 Message-Id: <20200523191517.23684-1-f4bug@amsat.org> X-Mailer: git-send-email 2.21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::441; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wr1-x441.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.001, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexander Bulekov , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Fix various out-of-range buffer access in the artist device emulation. Bugs found using libFuzzer (docs/devel/fuzzing.txt). Philippe Mathieu-Daudé (3): hw/display/artist: Check offset in draw_line to avoid buffer over-run hw/display/artist: Refactor artist_rop8() to avoid buffer over-run hw/display/artist: Check offset in block_move to avoid buffer over-read hw/display/artist.c | 54 +++++++++++++++++++++++++++++++-------------- 1 file changed, 37 insertions(+), 17 deletions(-) -- 2.21.3