From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sasha Levin Subject: [PATCH AUTOSEL 4.19 045/167] drm/amdgpu: validate user GEM object size Date: Tue, 3 Sep 2019 12:23:17 -0400 Message-ID: <20190903162519.7136-45-sashal@kernel.org> References: <20190903162519.7136-1-sashal@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20190903162519.7136-1-sashal@kernel.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Sasha Levin , Yu Zhao , =?UTF-8?q?Michel=20D=C3=A4nzer?= , dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, Alex Deucher List-Id: amd-gfx.lists.freedesktop.org RnJvbTogWXUgWmhhbyA8eXV6aGFvQGdvb2dsZS5jb20+CgpbIFVwc3RyZWFtIGNvbW1pdCBjNGEz MmIyNjZkYTdiYjcwMmU2MDM4MWNhMGMzNWVhZGRiYzg5YTZjIF0KCldoZW4gY3JlYXRpbmcgZnJh bWUgYnVmZmVyLCB1c2Vyc3BhY2UgbWF5IHJlcXVlc3QgdG8gYXR0YWNoIHRvIGEKcHJldmlvdXNs eSBhbGxvY2F0ZWQgR0VNIG9iamVjdCB0aGF0IGlzIHNtYWxsZXIgdGhhbiB3aGF0IEdQVQpyZXF1 aXJlcy4gVmFsaWRhdGlvbiBtdXN0IGJlIGRvbmUgdG8gcHJldmVudCBvdXQtb2YtYm91bmQgRE1B LApvdGhlcndpc2UgaXQgY291bGQgYmUgZXhwbG9pdGVkIHRvIHJldmVhbCBzZW5zaXRpdmUgZGF0 YS4KClRoaXMgZml4IGlzIG5vdCBkb25lIGluIGEgY29tbW9uIGNvZGUgcGF0aCBiZWNhdXNlIGlu ZGl2aWR1YWwKZHJpdmVyIG1pZ2h0IGhhdmUgZGlmZmVyZW50IHJlcXVpcmVtZW50LgoKQ2M6IHN0 YWJsZUB2Z2VyLmtlcm5lbC5vcmcgIyB2NC4yKwpSZXZpZXdlZC1ieTogTWljaGVsIETDpG56ZXIg PG1pY2hlbC5kYWVuemVyQGFtZC5jb20+ClNpZ25lZC1vZmYtYnk6IFl1IFpoYW8gPHl1emhhb0Bn b29nbGUuY29tPgpTaWduZWQtb2ZmLWJ5OiBBbGV4IERldWNoZXIgPGFsZXhhbmRlci5kZXVjaGVy QGFtZC5jb20+ClNpZ25lZC1vZmYtYnk6IFNhc2hhIExldmluIDxzYXNoYWxAa2VybmVsLm9yZz4K LS0tCiBkcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfZGlzcGxheS5jIHwgOCArKysr KysrKwogMSBmaWxlIGNoYW5nZWQsIDggaW5zZXJ0aW9ucygrKQoKZGlmZiAtLWdpdCBhL2RyaXZl cnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9kaXNwbGF5LmMgYi9kcml2ZXJzL2dwdS9kcm0v YW1kL2FtZGdwdS9hbWRncHVfZGlzcGxheS5jCmluZGV4IDZlNjc4MTRkMzNlMjkuLjEwMzVhNDdm ODFjOWMgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9kaXNw bGF5LmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2Rpc3BsYXkuYwpA QCAtNTI3LDYgKzUyNyw3IEBAIGFtZGdwdV9kaXNwbGF5X3VzZXJfZnJhbWVidWZmZXJfY3JlYXRl KHN0cnVjdCBkcm1fZGV2aWNlICpkZXYsCiAJc3RydWN0IGRybV9nZW1fb2JqZWN0ICpvYmo7CiAJ c3RydWN0IGFtZGdwdV9mcmFtZWJ1ZmZlciAqYW1kZ3B1X2ZiOwogCWludCByZXQ7CisJaW50IGhl aWdodDsKIAlzdHJ1Y3QgYW1kZ3B1X2RldmljZSAqYWRldiA9IGRldi0+ZGV2X3ByaXZhdGU7CiAJ aW50IGNwcCA9IGRybV9mb3JtYXRfcGxhbmVfY3BwKG1vZGVfY21kLT5waXhlbF9mb3JtYXQsIDAp OwogCWludCBwaXRjaCA9IG1vZGVfY21kLT5waXRjaGVzWzBdIC8gY3BwOwpAQCAtNTUxLDYgKzU1 MiwxMyBAQCBhbWRncHVfZGlzcGxheV91c2VyX2ZyYW1lYnVmZmVyX2NyZWF0ZShzdHJ1Y3QgZHJt X2RldmljZSAqZGV2LAogCQlyZXR1cm4gRVJSX1BUUigtRUlOVkFMKTsKIAl9CiAKKwloZWlnaHQg PSBBTElHTihtb2RlX2NtZC0+aGVpZ2h0LCA4KTsKKwlpZiAob2JqLT5zaXplIDwgcGl0Y2ggKiBo ZWlnaHQpIHsKKwkJRFJNX0RFQlVHX0tNUygiSW52YWxpZCBHRU0gc2l6ZTogZXhwZWN0aW5nID49 ICVkIGJ1dCBnb3QgJXp1XG4iLAorCQkJICAgICAgcGl0Y2ggKiBoZWlnaHQsIG9iai0+c2l6ZSk7 CisJCXJldHVybiBFUlJfUFRSKC1FSU5WQUwpOworCX0KKwogCWFtZGdwdV9mYiA9IGt6YWxsb2Mo c2l6ZW9mKCphbWRncHVfZmIpLCBHRlBfS0VSTkVMKTsKIAlpZiAoYW1kZ3B1X2ZiID09IE5VTEwp IHsKIAkJZHJtX2dlbV9vYmplY3RfcHV0X3VubG9ja2VkKG9iaik7Ci0tIAoyLjIwLjEKCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWls aW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZy ZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbA==