From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [v3] NFC: pn533: don't send USB data off of the stack From: Greg Kroah-Hartman Message-Id: <20180518103811.GA29186@kroah.com> Date: Fri, 18 May 2018 12:38:11 +0200 To: Arend van Spriel , Carlos Manuel Santos , Samuel Ortiz , Stephen Hemminger , linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org List-ID: SXQncyBhbWF6aW5nIHRoYXQgdGhpcyBkcml2ZXIgZXZlciB3b3JrZWQsIGJ1dCBub3cgdGhhdCB4 ODYgZG9lc24ndAphbGxvdyBVU0IgZGF0YSB0byBiZSBzZW50IG9mZiBvZiB0aGUgc3RhY2ssIGl0 IHJlYWxseSBkb2VzIG5vdCB3b3JrIGF0CmFsbC4gIEZpeCB0aGlzIHVwIGJ5IHByb3Blcmx5IGFs bG9jYXRpbmcgdGhlIGRhdGEgZm9yIHRoZSBzbWFsbAoiY29tbWFuZHMiIHRoYXQgZ2V0IHNlbnQg dG8gdGhlIGRldmljZS4KClRoZSBVU0Igc3RhY2sgd2lsbCBmcmVlIHRoZSBidWZmZXIgd2hlbiB0 aGUgZGF0YSBoYXMgYmVlbiB0cmFuc21pdHRlZCwKdGhhdCBpcyB3aHkgdGhlcmUgaXMgbm8ga2Zy ZWUoKSB0byBtaXJyb3IgdGhlIGNhbGwgdG8ga21hbGxvYygpLgoKUmVwb3J0ZWQtYnk6IENhcmxv cyBNYW51ZWwgU2FudG9zIDxjbW1wc2FudG9zQGdtYWlsLmNvbT4KQ2M6IFNhbXVlbCBPcnRpeiA8 c2FtZW9AbGludXguaW50ZWwuY29tPgpDYzogU3RlcGhlbiBIZW1taW5nZXIgPHN0ZXBoZW5AbmV0 d29ya3BsdW1iZXIub3JnPgpDYzogc3RhYmxlIDxzdGFibGVAdmdlci5rZXJuZWwub3JnPgpTaWdu ZWQtb2ZmLWJ5OiBHcmVnIEtyb2FoLUhhcnRtYW4gPGdyZWdraEBsaW51eGZvdW5kYXRpb24ub3Jn PgotLS0KdjM6IGFjdHVhbGx5IHVzZSB0aGUgY29ycmVjdCBidWZmZXIgKHRoYW5rcyB0byBBcmVu ZCB2YW4gU3ByaWVsKQogICAgdXNlIGttZW1kdXAgKHRoYW5rcyB0byBKb2hhbm5lcyBCZXJnIGFu ZCBKdWxpYSBMYXdhbGwpCnYyOiBzZXQgdGhlIHVyYiBmbGFncyBjb3JyZWN0bHkKCiBkcml2ZXJz L25mYy9wbjUzMy91c2IuYyB8ICAgMTcgKysrKysrKysrKysrKysrLS0KIDEgZmlsZSBjaGFuZ2Vk LCAxNSBpbnNlcnRpb25zKCspLCAyIGRlbGV0aW9ucygtKQoKLS0KVG8gdW5zdWJzY3JpYmUgZnJv bSB0aGlzIGxpc3Q6IHNlbmQgdGhlIGxpbmUgInVuc3Vic2NyaWJlIGxpbnV4LXVzYiIgaW4KdGhl IGJvZHkgb2YgYSBtZXNzYWdlIHRvIG1ham9yZG9tb0B2Z2VyLmtlcm5lbC5vcmcKTW9yZSBtYWpv cmRvbW8gaW5mbyBhdCAgaHR0cDovL3ZnZXIua2VybmVsLm9yZy9tYWpvcmRvbW8taW5mby5odG1s CgotLS0gYS9kcml2ZXJzL25mYy9wbjUzMy91c2IuYworKysgYi9kcml2ZXJzL25mYy9wbjUzMy91 c2IuYwpAQCAtMTUwLDEwICsxNTAsMTYgQEAgc3RhdGljIGludCBwbjUzM191c2Jfc2VuZF9hY2so c3RydWN0IHBuNQogCXN0cnVjdCBwbjUzM191c2JfcGh5ICpwaHkgPSBkZXYtPnBoeTsKIAlzdGF0 aWMgY29uc3QgdTggYWNrWzZdID0gezB4MDAsIDB4MDAsIDB4ZmYsIDB4MDAsIDB4ZmYsIDB4MDB9 OwogCS8qIHNwZWMgNy4xLjEuMzogIFByZWFtYmxlLCBTb1BDICgyKSwgQUNLIENvZGUgKDIpLCBQ b3N0YW1ibGUgKi8KKwljaGFyICpidWZmZXI7CiAJaW50IHJjOwogCi0JcGh5LT5vdXRfdXJiLT50 cmFuc2Zlcl9idWZmZXIgPSAodTggKilhY2s7CisJYnVmZmVyID0ga21lbWR1cChhY2ssIHNpemVv ZihhY2spLCBHRlBfS0VSTkVMKTsKKwlpZiAoIWJ1ZmZlcikKKwkJcmV0dXJuIC1FTk9NRU07CisK KwlwaHktPm91dF91cmItPnRyYW5zZmVyX2J1ZmZlciA9IGJ1ZmZlcjsKIAlwaHktPm91dF91cmIt PnRyYW5zZmVyX2J1ZmZlcl9sZW5ndGggPSBzaXplb2YoYWNrKTsKKwlwaHktPm91dF91cmItPnRy YW5zZmVyX2ZsYWdzIHw9IFVSQl9GUkVFX0JVRkZFUjsKIAlyYyA9IHVzYl9zdWJtaXRfdXJiKHBo eS0+b3V0X3VyYiwgZmxhZ3MpOwogCiAJcmV0dXJuIHJjOwpAQCAtMTcwLDYgKzE3Niw3IEBAIHN0 YXRpYyBpbnQgcG41MzNfdXNiX3NlbmRfZnJhbWUoc3RydWN0IHAKIAogCXBoeS0+b3V0X3VyYi0+ dHJhbnNmZXJfYnVmZmVyID0gb3V0LT5kYXRhOwogCXBoeS0+b3V0X3VyYi0+dHJhbnNmZXJfYnVm ZmVyX2xlbmd0aCA9IG91dC0+bGVuOworCXBoeS0+b3V0X3VyYi0+dHJhbnNmZXJfZmxhZ3MgJj0g flVSQl9GUkVFX0JVRkZFUjsKIAogCXByaW50X2hleF9kdW1wX2RlYnVnKCJQTjUzMyBUWDogIiwg RFVNUF9QUkVGSVhfTk9ORSwgMTYsIDEsCiAJCQkgICAgIG91dC0+ZGF0YSwgb3V0LT5sZW4sIGZh bHNlKTsKQEAgLTM3NSwyMCArMzgyLDI2IEBAIHN0YXRpYyBpbnQgcG41MzNfYWNyMTIyX3Bvd2Vy b25fcmRyKHN0cnUKIAkvKiBQb3dlciBvbiB0aCByZWFkZXIgKENDSUQgY21kKSAqLwogCXU4IGNt ZFsxMF0gPSB7UE41MzNfQUNSMTIyX1BDX1RPX1JEUl9JQ0NQT1dFUk9OLAogCQkgICAgICAwLCAw LCAwLCAwLCAwLCAwLCAzLCAwLCAwfTsKKwljaGFyICpidWZmZXI7CiAJaW50IHJjOwogCXZvaWQg KmNudHg7CiAJc3RydWN0IHBuNTMzX2FjcjEyMl9wb3dlcm9uX3Jkcl9hcmcgYXJnOwogCiAJZGV2 X2RiZygmcGh5LT51ZGV2LT5kZXYsICIlc1xuIiwgX19mdW5jX18pOwogCisJYnVmZmVyID0ga21l bWR1cChjbWQsIHNpemVvZihjbWQpLCBHRlBfS0VSTkVMKTsKKwlpZiAoIWJ1ZmZlcikKKwkJcmV0 dXJuIC1FTk9NRU07CisKIAlpbml0X2NvbXBsZXRpb24oJmFyZy5kb25lKTsKIAljbnR4ID0gcGh5 LT5pbl91cmItPmNvbnRleHQ7ICAvKiBiYWNrdXAgY29udGV4dCAqLwogCiAJcGh5LT5pbl91cmIt PmNvbXBsZXRlID0gcG41MzNfYWNyMTIyX3Bvd2Vyb25fcmRyX3Jlc3A7CiAJcGh5LT5pbl91cmIt PmNvbnRleHQgPSAmYXJnOwogCi0JcGh5LT5vdXRfdXJiLT50cmFuc2Zlcl9idWZmZXIgPSBjbWQ7 CisJcGh5LT5vdXRfdXJiLT50cmFuc2Zlcl9idWZmZXIgPSBidWZmZXI7CiAJcGh5LT5vdXRfdXJi LT50cmFuc2Zlcl9idWZmZXJfbGVuZ3RoID0gc2l6ZW9mKGNtZCk7CisJcGh5LT5vdXRfdXJiLT50 cmFuc2Zlcl9mbGFncyB8PSBVUkJfRlJFRV9CVUZGRVI7CiAKIAlwcmludF9oZXhfZHVtcF9kZWJ1 ZygiQUNSMTIyIFRYOiAiLCBEVU1QX1BSRUZJWF9OT05FLCAxNiwgMSwKIAkJICAgICAgIGNtZCwg c2l6ZW9mKGNtZCksIGZhbHNlKTsK