Messages in this thread | | | Date | Mon, 12 Apr 2010 13:28:32 +0300 | From | Avi Kivity <> | Subject | Re: [PATCH] KVM: Enhance the coalesced_mmio_write() parameter to avoid stack buffer overflow |
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On 04/12/2010 04:57 AM, wzt.wzt@gmail.com wrote: > coalesced_mmio_write() is not check the len value, if len is negative, > memcpy(ring->coalesced_mmio[ring->last].data, val, len); will cause > stack buffer overflow. > >
How can len be negative? It can only be between 1 and 8.
-- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.
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