From: syzbot Subject: Re: KMSAN: uninit-value in af_alg_free_areq_sgls Date: Fri, 06 Jul 2018 01:09:01 -0700 Message-ID: <000000000000363e2e0570502d42@google.com> References: <1616306.R4SzcgHSdy@positron.chronox.de> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Content-Transfer-Encoding: base64 To: davem@davemloft.net, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, smueller@chronox.de, syzkaller-bugs@googlegroups.com Return-path: In-Reply-To: <1616306.R4SzcgHSdy@positron.chronox.de> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org SGVsbG8sDQoNCnN5emJvdCB0cmllZCB0byB0ZXN0IHRoZSBwcm9wb3NlZCBwYXRjaCBidXQgYnVp bGQvYm9vdCBmYWlsZWQ6DQoNCmxvc3QgY29ubmVjdGlvbiB0byB0ZXN0IG1hY2hpbmUNCg0KDQoN ClsuLi4uXSBTdGFydGluZyBlbmhhbmNlZCBzeXNsb2dkOiByc3lzbG9nZBtbPzI1bBtbPzFjGzcb WzFHWxtbMzJtIG9rICANChtbMzk7NDltGzgbWz8yNWgbWz8wYy4NClsuLi4uXSBTdGFydGluZyBw ZXJpb2RpYyBjb21tYW5kIHNjaGVkdWxlcjogY3JvbhtbPzI1bBtbPzFjGzcbWzFHWxtbMzJtIG9r ICANChtbMzk7NDltGzgbWz8yNWgbWz8wYy4NClsuLi4uXSBTdGFydGluZyBPcGVuQlNEIFNlY3Vy ZSBTaGVsbCBzZXJ2ZXI6IHNzaGRbICAgMjEuNzA5MjgwXSByYW5kb206ICANCnNzaGQ6IHVuaW5p dGlhbGl6ZWQgdXJhbmRvbSByZWFkICgzMiBieXRlcyByZWFkKQ0KG1s/MjVsG1s/MWMbNxtbMUdb G1szMm0gb2sgG1szOTs0OW0bOBtbPzI1aBtbPzBjLg0KDQpEZWJpYW4gR05VL0xpbnV4IDcgc3l6 a2FsbGVyIHR0eVMwDQoNCnN5emthbGxlciBsb2dpbjogWyAgIDI2LjIyOTExM10gcmFuZG9tOiBz c2hkOiB1bmluaXRpYWxpemVkIHVyYW5kb20gcmVhZCAgDQooMzIgYnl0ZXMgcmVhZCkNClsgICAy Ni41MzI4NDNdIHJhbmRvbTogc3NoZDogdW5pbml0aWFsaXplZCB1cmFuZG9tIHJlYWQgKDMyIGJ5 dGVzIHJlYWQpDQpbICAgMjcuNzg3Mjc3XSByYW5kb206IHNzaGQ6IHVuaW5pdGlhbGl6ZWQgdXJh bmRvbSByZWFkICgzMiBieXRlcyByZWFkKQ0KV2FybmluZzogUGVybWFuZW50bHkgYWRkZWQgJzEw LjEyOC4wLjInIChFQ0RTQSkgdG8gdGhlIGxpc3Qgb2Yga25vd24gaG9zdHMuDQpbICAgMzMuMjk5 MzY4XSByYW5kb206IHNzaGQ6IHVuaW5pdGlhbGl6ZWQgdXJhbmRvbSByZWFkICgzMiBieXRlcyBy ZWFkKQ0KZmxhZyBwcm92aWRlZCBidXQgbm90IGRlZmluZWQ6IC1vcw0KVXNhZ2Ugb2YgLi9zeXot ZnV6emVyOg0KICAgLWFib3J0X3NpZ25hbCBpbnQNCiAgICAgCWluaXRpYWwgc2lnbmFsIHRvIHNl bmQgdG8gZXhlY3V0b3IgaW4gZXJyb3IgY29uZGl0aW9uczsgdXBncmFkZXMgdG8gIA0KU0lHS0lM TCBpZiBleGVjdXRvciBkb2VzIG5vdCBleGl0DQogICAtYXJjaCBzdHJpbmcNCiAgICAgCXRhcmdl dCBhcmNoIChkZWZhdWx0ICJhbWQ2NCIpDQogICAtYnVmZmVyX3NpemUgdWludA0KICAgICAJaW50 ZXJuYWwgYnVmZmVyIHNpemUgKGluIGJ5dGVzKSBmb3IgZXhlY3V0b3Igb3V0cHV0DQogICAtY29s bGlkZQ0KICAgICAJY29sbGlkZSBzeXNjYWxscyB0byBwcm92b2tlIGRhdGEgcmFjZXMgKGRlZmF1 bHQgdHJ1ZSkNCiAgIC1jb3Zlcg0KICAgICAJY29sbGVjdCBmZWVkYmFjayBzaWduYWxzIChjb3Zl cmFnZSkNCiAgIC1kZWJ1Zw0KICAgICAJZGVidWcgb3V0cHV0IGZyb20gZXhlY3V0b3INCiAgIC1l eGVjdXRvciBzdHJpbmcNCiAgICAgCXBhdGggdG8gZXhlY3V0b3IgYmluYXJ5IChkZWZhdWx0ICIu L3N5ei1leGVjdXRvciIpDQogICAtaXBjIHN0cmluZw0KICAgICAJaXBjIHNjaGVtZSAocGlwZS9z aG1lbSkNCiAgIC1sZWFrDQogICAgIAlkZXRlY3QgbWVtb3J5IGxlYWtzDQogICAtbWFuYWdlciBz dHJpbmcNCiAgICAgCW1hbmFnZXIgcnBjIGFkZHJlc3MNCiAgIC1uYW1lIHN0cmluZw0KICAgICAJ dW5pcXVlIG5hbWUgZm9yIG1hbmFnZXIgKGRlZmF1bHQgInRlc3QiKQ0KICAgLW91dHB1dCBzdHJp bmcNCiAgICAgCXdyaXRlIHByb2dyYW1zIHRvIG5vbmUvc3Rkb3V0L2RtZXNnL2ZpbGUgKGRlZmF1 bHQgInN0ZG91dCIpDQogICAtcHByb2Ygc3RyaW5nDQogICAgIAlhZGRyZXNzIHRvIHNlcnZlIHBw cm9mIHByb2ZpbGVzDQogICAtcHJvY3MgaW50DQogICAgIAludW1iZXIgb2YgcGFyYWxsZWwgdGVz dCBwcm9jZXNzZXMgKGRlZmF1bHQgMSkNCiAgIC1zYW5kYm94IHN0cmluZw0KICAgICAJc2FuZGJv eCBmb3IgZnV6emluZyAobm9uZS9zZXR1aWQvbmFtZXNwYWNlKSAoZGVmYXVsdCAibm9uZSIpDQog ICAtdGVzdA0KICAgICAJZW5hYmxlIGltYWdlIHRlc3RpbmcgbW9kZQ0KICAgLXRocmVhZGVkDQog ICAgIAl1c2UgdGhyZWFkZWQgbW9kZSBpbiBleGVjdXRvciAoZGVmYXVsdCB0cnVlKQ0KICAgLXRp bWVvdXQgZHVyYXRpb24NCiAgICAgCWV4ZWN1dGlvbiB0aW1lb3V0DQogICAtdiBpbnQNCiAgICAg CXZlcmJvc2l0eQ0KDQoNCg0KVGVzdGVkIG9uOg0KDQpjb21taXQ6ICAgICAgICAgOWM5ZGY5ZjI3 NWYwIGttc2FuOiByZW1vdmUga21zYW5fdGhyZWFkc19yZWFkeQ0KZ2l0IHRyZWU6ICAgICAgIGh0 dHBzOi8vZ2l0aHViLmNvbS9nb29nbGUva21zYW4uZ2l0L21hc3Rlcg0Ka2VybmVsIGNvbmZpZzog IGh0dHBzOi8vc3l6a2FsbGVyLmFwcHNwb3QuY29tL3gvLmNvbmZpZz94PWIxMWY0Y2ZiMjYyZWU2 MDcNCmNvbXBpbGVyOiAgICAgICBjbGFuZyB2ZXJzaW9uIDcuMC4wICh0cnVuayAzMzQxMDQpDQpw YXRjaDogICAgICAgICAgaHR0cHM6Ly9zeXprYWxsZXIuYXBwc3BvdC5jb20veC9wYXRjaC5kaWZm P3g9MTZhNWFmODQ0MDAwMDANCg0K