From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Keeping Subject: [PATCH v3 06/24] drm/rockchip: dw-mipi-dsi: avoid out-of-bounds read on tx_buf Date: Sun, 29 Jan 2017 13:24:26 +0000 Message-ID: <20170129132444.25251-7-john@metanate.com> References: <20170129132444.25251-1-john@metanate.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20170129132444.25251-1-john@metanate.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Mark Yao Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, Chris Zhong , linux-arm-kernel@lists.infradead.org List-Id: linux-rockchip.vger.kernel.org QXMgYSBzaWRlLWVmZmVjdCBvZiB0aGlzLCBlbmNvZGUgdGhlIGVuZGlhbm5lc3MgZXhwbGljaXRs eSByYXRoZXIgdGhhbgpjYXN0aW5nIGEgdTE2LgoKU2lnbmVkLW9mZi1ieTogSm9obiBLZWVwaW5n IDxqb2huQG1ldGFuYXRlLmNvbT4KUmV2aWV3ZWQtYnk6IENocmlzIFpob25nIDx6eXdAcm9jay1j aGlwcy5jb20+Ci0tLQp2MzoKLSBBZGQgQ2hyaXMnIFJldmlld2VkLWJ5ClVuY2hhbmdlZCBpbiB2 MgoKIGRyaXZlcnMvZ3B1L2RybS9yb2NrY2hpcC9kdy1taXBpLWRzaS5jIHwgOSArKysrKysrLS0K IDEgZmlsZSBjaGFuZ2VkLCA3IGluc2VydGlvbnMoKyksIDIgZGVsZXRpb25zKC0pCgpkaWZmIC0t Z2l0IGEvZHJpdmVycy9ncHUvZHJtL3JvY2tjaGlwL2R3LW1pcGktZHNpLmMgYi9kcml2ZXJzL2dw dS9kcm0vcm9ja2NoaXAvZHctbWlwaS1kc2kuYwppbmRleCA0YmUxZmYzYTQyYmIuLjJlNmFkNDU5 MWViZiAxMDA2NDQKLS0tIGEvZHJpdmVycy9ncHUvZHJtL3JvY2tjaGlwL2R3LW1pcGktZHNpLmMK KysrIGIvZHJpdmVycy9ncHUvZHJtL3JvY2tjaGlwL2R3LW1pcGktZHNpLmMKQEAgLTU3Miw4ICs1 NzIsMTMgQEAgc3RhdGljIGludCBkd19taXBpX2RzaV9nZW5fcGt0X2hkcl93cml0ZShzdHJ1Y3Qg ZHdfbWlwaV9kc2kgKmRzaSwgdTMyIGhkcl92YWwpCiBzdGF0aWMgaW50IGR3X21pcGlfZHNpX2Rj c19zaG9ydF93cml0ZShzdHJ1Y3QgZHdfbWlwaV9kc2kgKmRzaSwKIAkJCQkgICAgICAgY29uc3Qg c3RydWN0IG1pcGlfZHNpX21zZyAqbXNnKQogewotCWNvbnN0IHUxNiAqdHhfYnVmID0gbXNnLT50 eF9idWY7Ci0JdTMyIHZhbCA9IEdFTl9IREFUQSgqdHhfYnVmKSB8IEdFTl9IVFlQRShtc2ctPnR5 cGUpOworCWNvbnN0IHU4ICp0eF9idWYgPSBtc2ctPnR4X2J1ZjsKKwl1MzIgdmFsID0gR0VOX0hU WVBFKG1zZy0+dHlwZSk7CisKKwlpZiAobXNnLT50eF9sZW4gPiAwKQorCQl2YWwgfD0gR0VOX0hE QVRBKHR4X2J1ZlswXSk7CisJaWYgKG1zZy0+dHhfbGVuID4gMSkKKwkJdmFsIHw9IEdFTl9IREFU QSh0eF9idWZbMV0gPDwgOCk7CiAKIAlpZiAobXNnLT50eF9sZW4gPiAyKSB7CiAJCWRldl9lcnIo ZHNpLT5kZXYsICJ0b28gbG9uZyB0eCBidWYgbGVuZ3RoICV6dSBmb3Igc2hvcnQgd3JpdGVcbiIs Ci0tIAoyLjExLjAuMTk3LmdiNTU2ZGU1LmRpcnR5CgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBs aXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1h bi9saXN0aW5mby9kcmktZGV2ZWwK