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| From: | Alexander Popov |
| Subject: | Re: [Qemu-devel] [QEMU-SECURITY] ide: fix assertion in ide_dma_cb() to prevent qemu DoS from quest |
| Date: | Mon, 15 Jul 2019 14:24:02 +0300 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.1 |
On 05.07.2019 17:07, Alexander Popov wrote: > This assertion was introduced in the commit a718978ed58a in July 2015. > It implies that the size of successful DMA transfers handled in > ide_dma_cb() should be multiple of 512 (the size of a sector). > > But guest systems can initiate DMA transfers that don't fit this > requirement. Let's improve the assertion to prevent qemu DoS from quests. Hello! Just a friendly ping. Could you have a look at this patch? Best regards, Alexander
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