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[86.27.177.88]) by smtp.gmail.com with ESMTPSA id bg42-20020a05600c3caa00b00380deeaae72sm1978124wmb.1.2022.03.08.00.01.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Mar 2022 00:01:35 -0800 (PST) Date: Tue, 8 Mar 2022 08:01:32 +0000 From: Lee Jones To: "Michael S. Tsirkin" Subject: Re: [PATCH 1/1] vhost: Protect the virtqueue from being cleared whilst still in use Message-ID: References: <20220307191757.3177139-1-lee.jones@linaro.org> <20220307173439-mutt-send-email-mst@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220307173439-mutt-send-email-mst@kernel.org> Cc: syzbot+adc3cb32385586bec859@syzkaller.appspotmail.com, kvm@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, virtualization@lists.linux-foundation.org X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" T24gTW9uLCAwNyBNYXIgMjAyMiwgTWljaGFlbCBTLiBUc2lya2luIHdyb3RlOgoKPiBPbiBNb24s IE1hciAwNywgMjAyMiBhdCAwNzoxNzo1N1BNICswMDAwLCBMZWUgSm9uZXMgd3JvdGU6Cj4gPiB2 aG9zdF92c29ja19oYW5kbGVfdHhfa2ljaygpIGFscmVhZHkgaG9sZHMgdGhlIG11dGV4IGR1cmlu ZyBpdHMgY2FsbAo+ID4gdG8gdmhvc3RfZ2V0X3ZxX2Rlc2MoKS4gIEFsbCB3ZSBoYXZlIHRvIGRv IGhlcmUgaXMgdGFrZSB0aGUgc2FtZSBsb2NrCj4gPiBkdXJpbmcgdmlydHF1ZXVlIGNsZWFuLXVw IGFuZCB3ZSBtaXRpZ2F0ZSB0aGUgcmVwb3J0ZWQgaXNzdWVzLgo+IAo+IFBscyBqdXN0IGJhc2lj YWxseSBjb3B5IHRoZSBjb2RlIGNvbW1lbnQgaGVyZS4gdGhpcyBpcyBqdXN0IGNvbmZ1c2VzLgo+ IAo+ID4gQWxzbyBXQVJOKCkgYXMgYSBwcmVjYXV0aW9uYXJ5IG1lYXN1cmUuICBUaGUgcHVycG9z ZSBvZiB0aGlzIGlzIHRvCj4gPiBjYXB0dXJlIHBvc3NpYmxlIGZ1dHVyZSByYWNlIGNvbmRpdGlv bnMgd2hpY2ggbWF5IHBvcCB1cCBvdmVyIHRpbWUuCj4gPiAKPiA+IExpbms6IGh0dHBzOi8vc3l6 a2FsbGVyLmFwcHNwb3QuY29tL2J1Zz9leHRpZD0yNzk0MzJkMzBkODI1ZTYzYmEwMAo+IAo+IEFu ZCB0aGlzIGlzIGEgYnVnIHdlIGFscmVhZHkgZml4ZWQsIHJpZ2h0PwoKV2VsbCwgdGhpcyB3YXMg dGhlIGJ1ZyBJIHNldCBvdXQgdG8gZml4LgoKSSBkaWRuJ3Qga25vdyB5b3VyIHBhdGNoIHdhcyBp biBmbGlnaHQgYXQgdGhlIHRpbWUuCgo+ID4gQ2M6IDxzdGFibGVAdmdlci5rZXJuZWwub3JnPgo+ ID4gUmVwb3J0ZWQtYnk6IHN5emJvdCthZGMzY2IzMjM4NTU4NmJlYzg1OUBzeXprYWxsZXIuYXBw c3BvdG1haWwuY29tCj4gCj4gbm90IHJlYWxseSBhcHBsaWNhYmxlIGFueW1vcmUgLi4uCgpJIGNh biByZW1vdmUgdGhlc2UgaWYgaXQgaGVscHMuCgotLSAKTGVlIEpvbmVzIFvmnY7nkLzmlq9dClBy aW5jaXBhbCBUZWNobmljYWwgTGVhZCAtIERldmVsb3BlciBTZXJ2aWNlcwpMaW5hcm8ub3JnIOKU giBPcGVuIHNvdXJjZSBzb2Z0d2FyZSBmb3IgQXJtIFNvQ3MKRm9sbG93IExpbmFybzogRmFjZWJv b2sgfCBUd2l0dGVyIHwgQmxvZwpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwpWaXJ0dWFsaXphdGlvbiBtYWlsaW5nIGxpc3QKVmlydHVhbGl6YXRpb25AbGlz dHMubGludXgtZm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3Jn L21haWxtYW4vbGlzdGluZm8vdmlydHVhbGl6YXRpb24=