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: xhci: tegra: Prevent error pointer dereference From: Greg Kroah-Hartman Message-Id: <20190220161612.GA911@kroah.com> Date: Wed, 20 Feb 2019 17:16:12 +0100 To: Thierry Reding Cc: Mathias Nyman , Jonathan Hunter , linux-usb@vger.kernel.org, linux-tegra@vger.kernel.org List-ID: T24gV2VkLCBGZWIgMjAsIDIwMTkgYXQgMDI6NDg6NDFQTSArMDEwMCwgVGhpZXJyeSBSZWRpbmcg d3JvdGU6Cj4gRnJvbTogVGhpZXJyeSBSZWRpbmcgPHRyZWRpbmdAbnZpZGlhLmNvbT4KPiAKPiBE dXJpbmcgaW5pdGlhbGl6YXRpb24sIHRoZSBob3N0IGFuZCBzdXBlci1zcGVlZCBwb3dlciBkb21h aW5zIHdpbGwKPiBjb250YWluIGFuIEVSUl9QVFIoKSBlbmNvZGVkIGVycm9yIGNvZGUgcmF0aGVy IHRoYW4gYmVpbmcgTlVMTC4gVG8KPiBhdm9pZCBhIGNyYXNoLCB1c2UgYSAhSVNfRVJSX09SX05V TEwoKSBjb25kaXRpb24gZHVyaW5nIGNsZWFudXAuCj4gCj4gU2lnbmVkLW9mZi1ieTogVGhpZXJy eSBSZWRpbmcgPHRyZWRpbmdAbnZpZGlhLmNvbT4KPiAtLS0KPiAgZHJpdmVycy91c2IvaG9zdC94 aGNpLXRlZ3JhLmMgfCA0ICsrLS0KPiAgMSBmaWxlIGNoYW5nZWQsIDIgaW5zZXJ0aW9ucygrKSwg MiBkZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy91c2IvaG9zdC94aGNpLXRl Z3JhLmMgYi9kcml2ZXJzL3VzYi9ob3N0L3hoY2ktdGVncmEuYwo+IGluZGV4IDkzOGZmMDZjMDM0 OS4uZWZiMGNhZDg3MTBlIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvdXNiL2hvc3QveGhjaS10ZWdy YS5jCj4gKysrIGIvZHJpdmVycy91c2IvaG9zdC94aGNpLXRlZ3JhLmMKPiBAQCAtOTQxLDkgKzk0 MSw5IEBAIHN0YXRpYyB2b2lkIHRlZ3JhX3h1c2JfcG93ZXJkb21haW5fcmVtb3ZlKHN0cnVjdCBk ZXZpY2UgKmRldiwKPiAgCQlkZXZpY2VfbGlua19kZWwodGVncmEtPmdlbnBkX2RsX3NzKTsKPiAg CWlmICh0ZWdyYS0+Z2VucGRfZGxfaG9zdCkKPiAgCQlkZXZpY2VfbGlua19kZWwodGVncmEtPmdl bnBkX2RsX2hvc3QpOwo+IC0JaWYgKHRlZ3JhLT5nZW5wZF9kZXZfc3MpCj4gKwlpZiAoIUlTX0VS Ul9PUl9OVUxMKHRlZ3JhLT5nZW5wZF9kZXZfc3MpKQo+ICAJCWRldl9wbV9kb21haW5fZGV0YWNo KHRlZ3JhLT5nZW5wZF9kZXZfc3MsIHRydWUpOwo+IC0JaWYgKHRlZ3JhLT5nZW5wZF9kZXZfaG9z dCkKPiArCWlmICghSVNfRVJSX09SX05VTEwodGVncmEtPmdlbnBkX2Rldl9ob3N0KSkKPiAgCQlk ZXZfcG1fZG9tYWluX2RldGFjaCh0ZWdyYS0+Z2VucGRfZGV2X2hvc3QsIHRydWUpOwo+ICB9CgpT aG91bGQgdGhpcyBnbyB0byBvbGRlciBrZXJuZWxzPyAgSWYgc28sIGFueSBoaW50IGFzIHRvIHdo YXQgY29tbWl0IHRoaXMKImZpeGVzOiI/Cgp0aGFua3MsCgpncmVnIGstaAo=