Re: [Qemu-devel] [PATCH v1] exec: check the range in the address_space_unmap routine

2019-04-03 Thread Dima Stepanov
On Fri, Mar 22, 2019 at 01:35:57PM +, Peter Maydell wrote: > On Fri, 22 Mar 2019 at 13:19, Dima Stepanov wrote: > > > > In case of the virtio-blk communication, can get the following assertion > > for the specifically crafted virtio packet: > > qemu-system-x86_64: exec.c:3725: address_space_

Re: [Qemu-devel] [PATCH v1] exec: check the range in the address_space_unmap routine

2019-03-22 Thread Peter Maydell
On Fri, 22 Mar 2019 at 13:19, Dima Stepanov wrote: > > In case of the virtio-blk communication, can get the following assertion > for the specifically crafted virtio packet: > qemu-system-x86_64: exec.c:3725: address_space_unmap: Assertion `mr != > NULL' failed. > This assertion is triggered i

[Qemu-devel] [PATCH v1] exec: check the range in the address_space_unmap routine

2019-03-22 Thread Dima Stepanov
In case of the virtio-blk communication, can get the following assertion for the specifically crafted virtio packet: qemu-system-x86_64: exec.c:3725: address_space_unmap: Assertion `mr != NULL' failed. This assertion is triggered if the length of the first descriptor in the block request chain