From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it1-f198.google.com (mail-it1-f198.google.com [209.85.166.198]) by kanga.kvack.org (Postfix) with ESMTP id A826E8E0002 for ; Mon, 14 Jan 2019 23:43:04 -0500 (EST) Received: by mail-it1-f198.google.com with SMTP id v188so1705827ita.0 for ; Mon, 14 Jan 2019 20:43:04 -0800 (PST) Received: from mail-sor-f69.google.com (mail-sor-f69.google.com. [209.85.220.69]) by mx.google.com with SMTPS id y7sor1182722ioa.135.2019.01.14.20.43.03 for (Google Transport Security); Mon, 14 Jan 2019 20:43:03 -0800 (PST) MIME-Version: 1.0 Date: Mon, 14 Jan 2019 20:43:03 -0800 Message-ID: <000000000000f49537057f77cb00@google.com> Subject: KASAN: use-after-scope Read in corrupted From: syzbot Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Content-Transfer-Encoding: base64 Sender: owner-linux-mm@kvack.org List-ID: To: akpm@linux-foundation.org, cai@lca.pw, crecklin@redhat.com, keescook@chromium.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com SGVsbG8sDQoNCnN5emJvdCBmb3VuZCB0aGUgZm9sbG93aW5nIGNyYXNoIG9uOg0KDQpIRUFEIGNv bW1pdDogICAgMWJkYmUyMjc0OTIwIE1lcmdlIHRhZyAndmZpby12NS4wLXJjMicgb2YgZ2l0Oi8v Z2l0aHViLmNvbS4uDQpnaXQgdHJlZTogICAgICAgdXBzdHJlYW0NCmNvbnNvbGUgb3V0cHV0OiBo dHRwczovL3N5emthbGxlci5hcHBzcG90LmNvbS94L2xvZy50eHQ/eD0xNTE5ZDM5ZjQwMDAwMA0K a2VybmVsIGNvbmZpZzogIGh0dHBzOi8vc3l6a2FsbGVyLmFwcHNwb3QuY29tL3gvLmNvbmZpZz94 PWVkZjFjMzAzMTA5N2MzMDQNCmRhc2hib2FyZCBsaW5rOiBodHRwczovL3N5emthbGxlci5hcHBz cG90LmNvbS9idWc/ZXh0aWQ9YmQzNmI3ZGQ5MzMwZjY3MDM3YWINCmNvbXBpbGVyOiAgICAgICBn Y2MgKEdDQykgOS4wLjAgMjAxODEyMzEgKGV4cGVyaW1lbnRhbCkNCnN5eiByZXBybzogICAgICBo dHRwczovL3N5emthbGxlci5hcHBzcG90LmNvbS94L3JlcHJvLnN5ej94PTEwZmNlMTRmNDAwMDAw DQpDIHJlcHJvZHVjZXI6ICAgaHR0cHM6Ly9zeXprYWxsZXIuYXBwc3BvdC5jb20veC9yZXByby5j P3g9MTEwYjIwMTc0MDAwMDANCg0KSU1QT1JUQU5UOiBpZiB5b3UgZml4IHRoZSBidWcsIHBsZWFz ZSBhZGQgdGhlIGZvbGxvd2luZyB0YWcgdG8gdGhlIGNvbW1pdDoNClJlcG9ydGVkLWJ5OiBzeXpi b3QrYmQzNmI3ZGQ5MzMwZjY3MDM3YWJAc3l6a2FsbGVyLmFwcHNwb3RtYWlsLmNvbQ0KDQo9PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT0NCkJVRzogS0FTQU46IHVzZS1hZnRlci1zY29wZSBpbiBkZWJ1Z19sb2NrZGVwX3JjdV9l bmFibGVkLnBhcnQuMCsweDUwLzB4NjAgIA0Ka2VybmVsL3JjdS91cGRhdGUuYzoyNDkNClJlYWQg b2Ygc2l6ZSA0IGF0IGFkZHIgZmZmZjg4ODBhOTQ1ZWFiYyBieSB0YXNrICANCmA577+977+977+9 77+977+977+9I++/vSgVEO+/ve+/ve+/ve+/ve+/vTzvv73vv73vv73vv73vv70QGmvvv73vv73v v73vv73vv73vv73vv71F77+977+977+977+977+9Pjlo77+977+977+977+977+977+977+977+9 QS8tMjEyMjE4ODYzNA0KDQpDUFU6IDAgUElEOiAtMjEyMjE4ODYzNCBDb21tOiDvv73vv71F77+9 77+977+977+977+977+977+977+977+977+977+977+977+9TzLvv70gTm90IHRhaW50ZWQgNS4w LjAtcmMxKyAgDQojMTkNCkhhcmR3YXJlIG5hbWU6IEdvb2dsZSBHb29nbGUgQ29tcHV0ZSBFbmdp bmUvR29vZ2xlIENvbXB1dGUgRW5naW5lLCBCSU9TICANCkdvb2dsZSAwMS8wMS8yMDExDQotLS0t LS0tLS0tLS1bIGN1dCBoZXJlIF0tLS0tLS0tLS0tLS0NCkJhZCBvciBtaXNzaW5nIHVzZXJjb3B5 IHdoaXRlbGlzdD8gS2VybmVsIG1lbW9yeSBvdmVyd3JpdGUgYXR0ZW1wdCBkZXRlY3RlZCAgDQp0 byBTTEFCIG9iamVjdCAndGFza19zdHJ1Y3QnIChvZmZzZXQgMTM0NCwgc2l6ZSA4KSENCldBUk5J Tkc6IENQVTogMCBQSUQ6IC0xNDU1MDM2Mjg4IGF0IG1tL3VzZXJjb3B5LmM6NzggIA0KdXNlcmNv cHlfd2FybisweGViLzB4MTEwIG1tL3VzZXJjb3B5LmM6NzgNCktlcm5lbCBwYW5pYyAtIG5vdCBz eW5jaW5nOiBwYW5pY19vbl93YXJuIHNldCAuLi4NCkNQVTogMCBQSUQ6IC0xNDU1MDM2Mjg4IENv bW06IO+/ve+/vUXvv73vv73vv73vv73vv73vv73vv73vv73vv73vv73vv73vv73vv71PMu+/vSBO b3QgdGFpbnRlZCA1LjAuMC1yYzErICANCiMxOQ0KSGFyZHdhcmUgbmFtZTogR29vZ2xlIEdvb2ds ZSBDb21wdXRlIEVuZ2luZS9Hb29nbGUgQ29tcHV0ZSBFbmdpbmUsIEJJT1MgIA0KR29vZ2xlIDAx LzAxLzIwMTENCkNhbGwgVHJhY2U6DQpLZXJuZWwgT2Zmc2V0OiBkaXNhYmxlZA0KUmVib290aW5n IGluIDg2NDAwIHNlY29uZHMuLg0KDQoNCi0tLQ0KVGhpcyBidWcgaXMgZ2VuZXJhdGVkIGJ5IGEg Ym90LiBJdCBtYXkgY29udGFpbiBlcnJvcnMuDQpTZWUgaHR0cHM6Ly9nb28uZ2wvdHBzbUVKIGZv ciBtb3JlIGluZm9ybWF0aW9uIGFib3V0IHN5emJvdC4NCnN5emJvdCBlbmdpbmVlcnMgY2FuIGJl IHJlYWNoZWQgYXQgc3l6a2FsbGVyQGdvb2dsZWdyb3Vwcy5jb20uDQoNCnN5emJvdCB3aWxsIGtl ZXAgdHJhY2sgb2YgdGhpcyBidWcgcmVwb3J0LiBTZWU6DQpodHRwczovL2dvby5nbC90cHNtRUoj YnVnLXN0YXR1cy10cmFja2luZyBmb3IgaG93IHRvIGNvbW11bmljYXRlIHdpdGggIA0Kc3l6Ym90 Lg0Kc3l6Ym90IGNhbiB0ZXN0IHBhdGNoZXMgZm9yIHRoaXMgYnVnLCBmb3IgZGV0YWlscyBzZWU6 DQpodHRwczovL2dvby5nbC90cHNtRUojdGVzdGluZy1wYXRjaGVzDQo=