From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8F17AC388F9 for ; Tue, 3 Nov 2020 20:49:26 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 409E022409 for ; Tue, 3 Nov 2020 20:49:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="fZNhfo31" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 409E022409 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9ACE36E8DB; Tue, 3 Nov 2020 20:49:25 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 102BB6E8DB for ; Tue, 3 Nov 2020 20:49:25 +0000 (UTC) Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 64561223FD; Tue, 3 Nov 2020 20:49:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604436564; bh=H/bahLUtNGlRGYIevvmapEfWHWWFAfHpFt8kL4xiXQA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fZNhfo31Yy6TcO9SQ1wjM64U4BOIlj6Wt1UcsqvtLGLHktjT5qTQnj1D5bHJoSzzL 5urSeXgEO6V+Fn0upevWsZXDInHEwJQUSmzbVXFBSRsRXI0GAFJwPZhSFWRnGbWQCs 5dLw7muACcI7fKTFgepnuXq0aF8vAxYvRb32Aa58= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Subject: [PATCH 5.9 267/391] drm/shme-helpers: Fix dma_buf_mmap forwarding bug Date: Tue, 3 Nov 2020 21:35:18 +0100 Message-Id: <20201103203405.042055538@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201103203348.153465465@linuxfoundation.org> References: <20201103203348.153465465@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Joonyoung Shim , piotr.oniszczuk@gmail.com, Greg Kroah-Hartman , dri-devel@lists.freedesktop.org, Seung-Woo Kim , Kyungmin Park , stable@vger.kernel.org, Boris Brezillon , Gerd Hoffmann , Thomas Zimmermann , Russell King , Daniel Vetter , linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, =?UTF-8?q?Christian=20K=C3=B6nig?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" RnJvbTogRGFuaWVsIFZldHRlciA8ZGFuaWVsLnZldHRlckBmZndsbC5jaD4KCmNvbW1pdCBmNDlh NTFiZmRjOGVhNzE3Yzk3Y2NkNGNjOThiN2U2ZGFhYTU1NTNhIHVwc3RyZWFtLgoKV2hlbiB3ZSBm b3J3YXJkIGFuIG1tYXAgdG8gdGhlIGRtYV9idWYgZXhwb3J0ZXIsIHRoZXkgZ2V0IHRvIG93bgpl dmVyeXRoaW5nLiBVbmZvcnR1bmF0ZWx5IGRybV9nZW1fbW1hcF9vYmooKSBvdmVyd3JvdGUKdm1h LT52bV9wcml2YXRlX2RhdGEgYWZ0ZXIgdGhlIGRyaXZlciBjYWxsYmFjaywgd3JlYWtpbmcgdGhl CmV4cG9ydGVyIGNvbXBsZXRlLiBUaGlzIHdhcyBub3RpY2VkIGJlY2F1c2UgdmIyX2NvbW1vbl92 bV9jbG9zZSBibGV3CnVwIG9uIG1hbGkgZ3B1IHdpdGggcGFuZnJvc3QgYWZ0ZXIgY29tbWl0IDI2 ZDNhYzNjYjA0ZAooImRybS9zaG1lbS1oZWxwZXJzOiBSZWRpcmVjdCBtbWFwIGZvciBpbXBvcnRl ZCBkbWEtYnVmIikuCgpVbmZvcnR1bmF0ZWx5IGRybV9nZW1fbW1hcF9vYmogYWxzbyBhY3F1aXJl cyBhIHN1cnBsdXMgcmVmZXJlbmNlIHRoYXQKd2UgbmVlZCB0byBkcm9wIGluIHNobWVtIGhlbHBl cnMsIHdoaWNoIGlzIGEgYml0IG9mIGEgbWlzbGF5ZXIKc2l0dWF0aW9uLiBNYXliZSB0aGUgZW50 aXJlIGRtYV9idWZfbW1hcCBmb3J3YXJkaW5nIHNob3VsZCBiZSBwdWxsZWQKaW50byBjb3JlIGdl bSBjb2RlLgoKTm90ZSB0aGF0IHRoZSBvbmx5IHR3byBvdGhlciBkcml2ZXJzIHdoaWNoIGZvcndh cmQgbW1hcCBpbiB0aGVpciBvd24KY29kZSAoZXRuYXZpdiBhbmQgZXh5bm9zKSBnZXQgdGhpcyBz b21ld2hhdCByaWdodCBieSBvdmVyd3JpdGluZyB0aGUKZ2VtIG1tYXAgY29kZS4gQnV0IHRoZXkg c2VlbSB0byBzdGlsbCBoYXZlIHRoZSBsZWFrLiBUaGlzIG1pZ2h0IGJlIGEKZ29vZCBleGN1c2Ug dG8gbW92ZSB0aGVzZSBkcml2ZXJzIG92ZXIgdG8gc2htZW0gaGVscGVycyBjb21wbGV0ZWx5LgoK UmV2aWV3ZWQtYnk6IEJvcmlzIEJyZXppbGxvbiA8Ym9yaXMuYnJlemlsbG9uQGNvbGxhYm9yYS5j b20+CkFja2VkLWJ5OiBDaHJpc3RpYW4gS8O2bmlnIDxjaHJpc3RpYW4ua29lbmlnQGFtZC5jb20+ CkNjOiBDaHJpc3RpYW4gS8O2bmlnIDxjaHJpc3RpYW4ua29lbmlnQGFtZC5jb20+CkNjOiBTdW1p dCBTZW13YWwgPHN1bWl0LnNlbXdhbEBsaW5hcm8ub3JnPgpDYzogTHVjYXMgU3RhY2ggPGwuc3Rh Y2hAcGVuZ3V0cm9uaXguZGU+CkNjOiBSdXNzZWxsIEtpbmcgPGxpbnV4K2V0bmF2aXZAYXJtbGlu dXgub3JnLnVrPgpDYzogQ2hyaXN0aWFuIEdtZWluZXIgPGNocmlzdGlhbi5nbWVpbmVyQGdtYWls LmNvbT4KQ2M6IElua2kgRGFlIDxpbmtpLmRhZUBzYW1zdW5nLmNvbT4KQ2M6IEpvb255b3VuZyBT aGltIDxqeTA5MjIuc2hpbUBzYW1zdW5nLmNvbT4KQ2M6IFNldW5nLVdvbyBLaW0gPHN3MDMxMi5r aW1Ac2Ftc3VuZy5jb20+CkNjOiBLeXVuZ21pbiBQYXJrIDxreXVuZ21pbi5wYXJrQHNhbXN1bmcu Y29tPgpGaXhlczogMjZkM2FjM2NiMDRkICgiZHJtL3NobWVtLWhlbHBlcnM6IFJlZGlyZWN0IG1t YXAgZm9yIGltcG9ydGVkIGRtYS1idWYiKQpDYzogQm9yaXMgQnJlemlsbG9uIDxib3Jpcy5icmV6 aWxsb25AY29sbGFib3JhLmNvbT4KQ2M6IFRob21hcyBaaW1tZXJtYW5uIDx0emltbWVybWFubkBz dXNlLmRlPgpDYzogR2VyZCBIb2ZmbWFubiA8a3JheGVsQHJlZGhhdC5jb20+CkNjOiBSb2IgSGVy cmluZyA8cm9iaEBrZXJuZWwub3JnPgpDYzogZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9y ZwpDYzogbGludXgtbWVkaWFAdmdlci5rZXJuZWwub3JnCkNjOiBsaW5hcm8tbW0tc2lnQGxpc3Rz LmxpbmFyby5vcmcKQ2M6IDxzdGFibGVAdmdlci5rZXJuZWwub3JnPiAjIHY1LjkrClJlcG9ydGVk LWFuZC10ZXN0ZWQtYnk6IHBpb3RyLm9uaXN6Y3p1a0BnbWFpbC5jb20KQ2M6IHBpb3RyLm9uaXN6 Y3p1a0BnbWFpbC5jb20KU2lnbmVkLW9mZi1ieTogRGFuaWVsIFZldHRlciA8ZGFuaWVsLnZldHRl ckBpbnRlbC5jb20+Ckxpbms6IGh0dHBzOi8vcGF0Y2h3b3JrLmZyZWVkZXNrdG9wLm9yZy9wYXRj aC9tc2dpZC8yMDIwMTAyNzIxNDkyMi4zNTY2NzQzLTEtZGFuaWVsLnZldHRlckBmZndsbC5jaApT aWduZWQtb2ZmLWJ5OiBHcmVnIEtyb2FoLUhhcnRtYW4gPGdyZWdraEBsaW51eGZvdW5kYXRpb24u b3JnPgoKLS0tCiBkcml2ZXJzL2dwdS9kcm0vZHJtX2dlbS5jICAgICAgICAgICAgICB8ICAgIDQg KystLQogZHJpdmVycy9ncHUvZHJtL2RybV9nZW1fc2htZW1faGVscGVyLmMgfCAgICA3ICsrKysr Ky0KIDIgZmlsZXMgY2hhbmdlZCwgOCBpbnNlcnRpb25zKCspLCAzIGRlbGV0aW9ucygtKQoKLS0t IGEvZHJpdmVycy9ncHUvZHJtL2RybV9nZW0uYworKysgYi9kcml2ZXJzL2dwdS9kcm0vZHJtX2dl bS5jCkBAIC0xMDg1LDYgKzEwODUsOCBAQCBpbnQgZHJtX2dlbV9tbWFwX29iaihzdHJ1Y3QgZHJt X2dlbV9vYmplCiAJICovCiAJZHJtX2dlbV9vYmplY3RfZ2V0KG9iaik7CiAKKwl2bWEtPnZtX3By aXZhdGVfZGF0YSA9IG9iajsKKwogCWlmIChvYmotPmZ1bmNzICYmIG9iai0+ZnVuY3MtPm1tYXAp IHsKIAkJcmV0ID0gb2JqLT5mdW5jcy0+bW1hcChvYmosIHZtYSk7CiAJCWlmIChyZXQpIHsKQEAg LTExMDcsOCArMTEwOSw2IEBAIGludCBkcm1fZ2VtX21tYXBfb2JqKHN0cnVjdCBkcm1fZ2VtX29i amUKIAkJdm1hLT52bV9wYWdlX3Byb3QgPSBwZ3Byb3RfZGVjcnlwdGVkKHZtYS0+dm1fcGFnZV9w cm90KTsKIAl9CiAKLQl2bWEtPnZtX3ByaXZhdGVfZGF0YSA9IG9iajsKLQogCXJldHVybiAwOwog fQogRVhQT1JUX1NZTUJPTChkcm1fZ2VtX21tYXBfb2JqKTsKLS0tIGEvZHJpdmVycy9ncHUvZHJt L2RybV9nZW1fc2htZW1faGVscGVyLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2RybV9nZW1fc2ht ZW1faGVscGVyLmMKQEAgLTU5NCw4ICs1OTQsMTMgQEAgaW50IGRybV9nZW1fc2htZW1fbW1hcChz dHJ1Y3QgZHJtX2dlbV9vYgogCS8qIFJlbW92ZSB0aGUgZmFrZSBvZmZzZXQgKi8KIAl2bWEtPnZt X3Bnb2ZmIC09IGRybV92bWFfbm9kZV9zdGFydCgmb2JqLT52bWFfbm9kZSk7CiAKLQlpZiAob2Jq LT5pbXBvcnRfYXR0YWNoKQorCWlmIChvYmotPmltcG9ydF9hdHRhY2gpIHsKKwkJLyogRHJvcCB0 aGUgcmVmZXJlbmNlIGRybV9nZW1fbW1hcF9vYmooKSBhY3F1aXJlZC4qLworCQlkcm1fZ2VtX29i amVjdF9wdXQob2JqKTsKKwkJdm1hLT52bV9wcml2YXRlX2RhdGEgPSBOVUxMOworCiAJCXJldHVy biBkbWFfYnVmX21tYXAob2JqLT5kbWFfYnVmLCB2bWEsIDApOworCX0KIAogCXNobWVtID0gdG9f ZHJtX2dlbV9zaG1lbV9vYmoob2JqKTsKIAoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3Rz LmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2RyaS1kZXZlbAo=