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Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:60030) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1s1QnV-0003Cq-2G; Mon, 29 Apr 2024 14:11:57 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1s1QnV-0000sD-57; Mon, 29 Apr 2024 14:11:57 +0100 Date: Mon, 29 Apr 2024 14:11:57 +0100 From: "Russell King (Oracle)" To: Andrey Ryabinin Cc: Boy Wu =?utf-8?B?KOWQs+WLg+iqvCk=?= , "linus.walleij@linaro.org" , "linux-kernel@vger.kernel.org" , "linux-mediatek@lists.infradead.org" , "andreyknvl@gmail.com" , "dvyukov@google.com" , "kasan-dev@googlegroups.com" , Iverlin Wang =?utf-8?B?KOeOi+iLs+mclik=?= , "mark.rutland@arm.com" , Light Chen =?utf-8?B?KOmZs+aYseWFiSk=?= , "linux-arm-kernel@lists.infradead.org" , "glider@google.com" , "matthias.bgg@gmail.com" , "vincenzo.frascino@arm.com" , "angelogioacchino.delregno@collabora.com" Subject: Re: [PATCH v2] arm: kasan: clear stale stack poison Message-ID: References: <20240410073044.23294-1-boy.wu@mediatek.com> <292f9fe4bab26028aa80f63bf160e0f2b874a17c.camel@mediatek.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240429_061209_019783_735BF2B0 X-CRM114-Status: GOOD ( 26.95 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gTW9uLCBBcHIgMjksIDIwMjQgYXQgMDI6NTc6MzVQTSArMDIwMCwgQW5kcmV5IFJ5YWJpbmlu IHdyb3RlOgo+IE9uIDQvMjkvMjQgMTQ6NDIsIFJ1c3NlbGwgS2luZyAoT3JhY2xlKSB3cm90ZToK PiA+IE9uIE1vbiwgQXByIDI5LCAyMDI0IGF0IDA3OjUxOjQ5QU0gKzAwMDAsIEJveSBXdSAo5ZCz 5YuD6Kq8KSB3cm90ZToKPiA+PiBPbiBTdW4sIDIwMjQtMDQtMjggYXQgMTU6NDUgKzAxMDAsIFJ1 c3NlbGwgS2luZyAoT3JhY2xlKSB3cm90ZToKPiA+Pj4gIE9uIEZyaSwgQXByIDEyLCAyMDI0IGF0 IDEwOjM3OjA2QU0gKzAyMDAsIExpbnVzIFdhbGxlaWogd3JvdGU6Cj4gPj4+PiBPbiBXZWQsIEFw ciAxMCwgMjAyNCBhdCA5OjMx4oCvQU0gYm95Lnd1IDxib3kud3VAbWVkaWF0ZWsuY29tPiB3cm90 ZToKPiA+Pj4+Cj4gPj4+Pj4gRnJvbTogQm95IFd1IDxib3kud3VAbWVkaWF0ZWsuY29tPgo+ID4+ Pj4+Cj4gPj4+Pj4gV2UgZm91bmQgYmVsb3cgT09CIGNyYXNoOgo+ID4+Pj4KPiA+Pj4+IFRoYW5r cyBmb3IgZGlnZ2luZyBpbiEKPiA+Pj4+Cj4gPj4+PiBQbGVhcyBwdXQgdGhpcyBwYXRjaCBpbnRv IFJ1c3NlbGwncyBwYXRjaCB0cmFja2VyIHNvIGhlIGNhbiBhcHBseQo+ID4+PiBpdDoKPiA+Pj4+ IGh0dHBzOi8vd3d3LmFybWxpbnV4Lm9yZy51ay9kZXZlbG9wZXIvcGF0Y2hlcy8KPiA+Pj4KPiA+ Pj4gSXMgdGhpcyBhIGJ1ZyBmaXg/IElmIHNvLCBoYXZpbmcgYSBGaXhlczogdGFnIHdvdWxkIGJl IG5pY2UuLi4KPiA+Pj4KPiA+Pgo+ID4+IFRoaXMgaXMgYSBwYXRjaCBmb3IgY3B1aWRsZSBmbG93 IHdoZW4gS0FTQU4gZW5hYmxlLCB0aGF0IGlzIGluIEFSTTY0Cj4gPj4gYnV0IG5vdCBpbiBBUk0s IHNvIGFkZCB0byBBUk0uCj4gPj4KPiA+PiBUaGUgcmVmZXJlbmNlIGNvbW1pdHMgZGlkIG5vdCBt ZW50aW9uIGZpeCBhbnkgY29tbWl0cy4KPiA+PiBbMV0gY29tbWl0IDBkOTdlNmQ4MDI0YyAoImFy bTY0OiBrYXNhbjogY2xlYXIgc3RhbGUgc3RhY2sgcG9pc29uIikKPiA+PiBbMl0gY29tbWl0IGQ1 NmE5ZWY4NGJkMCAoImthc2FuLCBhcm02NDogdW5wb2lzb24gc3RhY2sgb25seSB3aXRoCj4gPj4g Q09ORklHX0tBU0FOX1NUQUNLIikKPiA+IAo+ID4gVGhlc2UgYXJlIG5vdCBzdWl0YWJsZSBmb3Ig dXNlIGFzIGEgRml4ZXM6IHRhZyBiZWNhdXNlIHRoZXNlIGNvbW1pdHMKPiA+IHJlZmVyIHRvIGNv ZGUgaW4gYW5vdGhlciBwYXJ0IG9mIHRoZSB0cmVlIHRoYXQgaGFzIG5vdGhpbmcgdG8gZG8gd2l0 aAo+ID4gdGhlIEJVRygpIGR1bXAgdGhhdCBpcyBjb250YWluZWQgd2l0aGluIHlvdXIgY29tbWl0 IG1lc3NhZ2UuCj4gPiAKPiA+IEkgYXNrIGFnYWluLi4uIElzIHRoaXMgYSBidWcgZml4Pwo+ID4g Cj4gPiBJcyBpdCBhIHJlZ3Jlc3Npb24/Cj4gPiAKPiA+IElzIGl0IHNvbWV0aGluZyB0aGF0IHVz ZWQgdG8gd29yayB0aGF0IG5vIGxvbmdlciB3b3Jrcz8KPiA+IAo+ID4gV2hlbiBkaWQgaXQgYnJl YWs/Cj4gPiAKPiA+IEhhcyBpdCBhbHdheXMgYmVlbiBicm9rZW4/Cj4gPiAKPiA+IEhhcyBpdCBi ZWVuIGJyb2tlbiBzaW5jZSBLQVNBTiB3YXMgaW50cm9kdWNlZCBvbiAzMi1iaXQgQVJNPwo+ID4g Cj4gCj4gWWVzLCB0aGlzIGlzIGEgYnVnIGZpeCBhbmQgaXQgaGFzIGJlZW4gYnJva2VuIHNpbmNl IEtBU0FOIHdhcyBpbnRyb2R1Y2VkIG9uIDMyLWJpdCBBUk0uCj4gU28sIEkgdGhpbmsgdGhpcyBz aG91bGQgYmUKPiAJRml4ZXM6IDU2MTVmNjliYzIwOSAoIkFSTTogOTAxNi8yOiBJbml0aWFsaXpl IHRoZSBtYXBwaW5nIG9mIEtBU2FuIHNoYWRvdyBtZW1vcnkiKQoKQnJpbGxpYW50LCB0aGFua3Mh IE5vdyBtZXJnZWQuCgotLSAKUk1LJ3MgUGF0Y2ggc3lzdGVtOiBodHRwczovL3d3dy5hcm1saW51 eC5vcmcudWsvZGV2ZWxvcGVyL3BhdGNoZXMvCkZUVFAgaXMgaGVyZSEgODBNYnBzIGRvd24gMTBN YnBzIHVwLiBEZWNlbnQgY29ubmVjdGl2aXR5IGF0IGxhc3QhCgpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlz dApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJh ZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==