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 everyone! This bug was not considered as a security issue by QEMU security team, so I send this patch to the public mailing list. Best regards, Alexander
