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Tue, 22 Jun 2021 16:47:57 +0800 From: To: CC: , Yee Lee , "Andrey Ryabinin" , Alexander Potapenko , Dmitry Vyukov , Andrew Morton , Matthias Brugger , "open list:KASAN" , "open list:MEMORY MANAGEMENT" , open list , "moderated list:ARM/Mediatek SoC support" , "moderated list:ARM/Mediatek SoC support" Subject: [PATCH] kasan: [v2]unpoison use memzero to init unaligned object Date: Tue, 22 Jun 2021 16:47:20 +0800 Message-ID: <20210622084723.27637-1-yee.lee@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Content-Transfer-Encoding: base64 Authentication-Results: imf30.hostedemail.com; dkim=pass header.d=mediatek.com header.s=dk header.b=nXdlmaah; dmarc=pass (policy=none) header.from=mediatek.com; spf=pass (imf30.hostedemail.com: domain of yee.lee@mediatek.com designates 216.200.240.185 as permitted sender) smtp.mailfrom=yee.lee@mediatek.com X-Rspamd-Server: rspam02 X-Stat-Signature: zfsebyy63ir5osnsfcm4fjt846e9ttiz X-Rspamd-Queue-Id: 74BC4E0009B6 X-HE-Tag: 1624352136-762868 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: RnJvbTogWWVlIExlZSA8eWVlLmxlZUBtZWRpYXRlay5jb20+DQoNCkZvbGxvd3MgdGhlIGRpc2N1 c3Npb246IGh0dHBzOi8vcGF0Y2h3b3JrLmtlcm5lbC5vcmcvcHJvamVjdC9saW51eC1tZWRpYXRl ay9saXN0Lz9zZXJpZXM9NTA0NDM5DQoNClRoaXMgcGF0Y2ggQWRkIG1lbXplcm9fZXhwbGljdCB0 byBpbml0aWFsaXplIHVuYWxpZ25lZCBvYmplY3QuDQoNCkJhc2VkIG9uIHRoZSBpbnRlZ3JhdGVp b24gb2YgaW5pdGlhbGl6YXRpb24gaW4ga2FzYW5fdW5wb2lzb24oKS4gVGhlIGh3dGFnIGluc3Ry dWN0aW9ucywgY29uc3RyYWluZWQgd2l0aCBpdHMgZ3JhbnVsYXJpdHksIGhhcyB0byBvdmVyd3Jp dGUgdGhlIGRhdGEgYnR5ZXMgaW4gdW5hbGlnbmVkIG9iamVjdHMuIFRoaXMgd291bGQgY2F1c2Ug aXNzdWUgd2hlbiBpdCB3b3JrcyB3aXRoIFNMVUIgZGVidWcgcmVkem9uaW5nLg0KDQpJbiB0aGlz IHBhdGNoLCBhbiBhZGRpdGlvbmFsIGluaXRhbGl6YWluZyBwYXRoIGlzIGFkZGVkIGZvciB0aGUg dW5hbGlnbmVkIG9iamVjdHMuIEl0IGNvbnRhaW5zIG1lbXplcm9fZXhwbGljdCgpIHRvIGNsZWFy IG91dCB0aGUgZGF0YSBhbmQgZGlzYWJsZXMgaXRzIGluaXQgZmxhZyBmb3IgdGhlIGZvbGxvd2lu ZyBod3RhZyBhY3Rpb25zLg0KDQpJbiBsYWIgdGVzdCwgdGhpcyBwYXRoIGlzIGV4ZWN1dGVkIGFi b3V0IDEuMSUoOTQxLzgwODU0KSB3aXRoaW4gdGhlIG92ZXJhbGwga2FzYW5fdW5wb2lzb24gZHVy aW5nIGEgbm9uLWRlYnVnIGJvb3RpbmcgcHJvY2Vzcy4NCg0KTGFiIHRlc3Q6IFFFTVU1LjIgKCtt dGUpIC8gbGludXgga2VybmVsIDUuMTMtcmM3DQoNClNpZ25lZC1vZmYtYnk6IFllZSBMZWUgPHll ZS5sZWVAbWVkaWF0ZWsuY29tPg0KLS0tDQogbW0va2FzYW4va2FzYW4uaCB8IDIgKy0NCiAxIGZp bGUgY2hhbmdlZCwgMSBpbnNlcnRpb24oKyksIDEgZGVsZXRpb24oLSkNCg0KZGlmZiAtLWdpdCBh L21tL2thc2FuL2thc2FuLmggYi9tbS9rYXNhbi9rYXNhbi5oDQppbmRleCBkOGZhYTY0NjE0Yjcu LmVkYzExYmNjM2ZmMyAxMDA2NDQNCi0tLSBhL21tL2thc2FuL2thc2FuLmgNCisrKyBiL21tL2th c2FuL2thc2FuLmgNCkBAIC0zODksNyArMzg5LDcgQEAgc3RhdGljIGlubGluZSB2b2lkIGthc2Fu X3VucG9pc29uKGNvbnN0IHZvaWQgKmFkZHIsIHNpemVfdCBzaXplLCBib29sIGluaXQpDQogCQly ZXR1cm47DQogCWlmIChpbml0ICYmICgodW5zaWduZWQgbG9uZylzaXplICYgS0FTQU5fR1JBTlVM RV9NQVNLKSkgew0KIAkJaW5pdCA9IGZhbHNlOw0KLQkJbWVtc2V0KCh2b2lkICopYWRkciwgMCwg c2l6ZSk7DQorCQltZW16ZXJvX2V4cGxpY2l0KCh2b2lkICopYWRkciwgc2l6ZSk7DQogCX0NCiAJ c2l6ZSA9IHJvdW5kX3VwKHNpemUsIEtBU0FOX0dSQU5VTEVfU0laRSk7DQogCWh3X3NldF9tZW1f dGFnX3JhbmdlKCh2b2lkICopYWRkciwgc2l6ZSwgdGFnLCBpbml0KTsNCjIuMTguMA0K