Re: [Qemu-devel] Disk image fuzz testing (OPW)

2014-05-27 Thread Stefan Hajnoczi
On Mon, May 26, 2014 at 01:53:57PM +0400, M.Kustova wrote: > About fuzzer effectiveness. 'qemu-img' was set as the fuzzer target, > so its commands under interest are any that modify or/and read an > image. As first step, a tested command will be selected randomly or > specified by user. After inve

Re: [Qemu-devel] Disk image fuzz testing (OPW)

2014-05-27 Thread M.Kustova
On Tue, May 27, 2014 at 3:35 PM, Richard W.M. Jones wrote: > > A few years ago I suggested a way to use systemtap probes to do > feedback-directed fuzz-testing: > > http://rwmj.wordpress.com/2010/11/22/half-baked-ideas-feedback-directed-fuzz-testing-of-filesystems/#content > > When I tried to impl

Re: [Qemu-devel] Disk image fuzz testing (OPW)

2014-05-27 Thread Richard W.M. Jones
A few years ago I suggested a way to use systemtap probes to do feedback-directed fuzz-testing: http://rwmj.wordpress.com/2010/11/22/half-baked-ideas-feedback-directed-fuzz-testing-of-filesystems/#content When I tried to implement it, it turned out to mainly uncover bugs in systemtap :-/ Rich.

Re: [Qemu-devel] Disk image fuzz testing (OPW)

2014-05-27 Thread Richard W.M. Jones
On Mon, May 26, 2014 at 01:53:57PM +0400, M.Kustova wrote: > About fuzzer effectiveness. 'qemu-img' was set as the fuzzer target, > so its commands under interest are any that modify or/and read an > image. As first step, a tested command will be selected randomly or > specified by user. qemu-io w

Re: [Qemu-devel] Disk image fuzz testing (OPW)

2014-05-26 Thread M.Kustova
Hello Kevin, Thanks a lot for your feedback. Your first guess is absolutely correct. For now, 'action' can be freely interpret as an image block will be corrupted. It's possible, that in the future this term will be extended to a set of fuzzing rules necessary to corrupt some image block, e.g. not

Re: [Qemu-devel] Disk image fuzz testing (OPW)

2014-05-26 Thread Stefan Hajnoczi
On Mon, May 26, 2014 at 09:07:43AM +0400, M.Kustova wrote: > Hello, > > My name is Maria and I'm a participant of the Outreach Program for Women. > My project is fuzz testing of support of qcow2 image format. > > The project git: > https://github.com/maxalab/qemu_fuzzer.git > > It's pubic, so w

Re: [Qemu-devel] Disk image fuzz testing (OPW)

2014-05-26 Thread Kevin Wolf
Hi Maria, Am 26.05.2014 um 07:07 hat M.Kustova geschrieben: > My name is Maria and I'm a participant of the Outreach Program for Women. > My project is fuzz testing of support of qcow2 image format. > > The project git: > https://github.com/maxalab/qemu_fuzzer.git > > It's pubic, so welcome, ma

[Qemu-devel] Disk image fuzz testing (OPW)

2014-05-25 Thread M.Kustova
Hello, My name is Maria and I'm a participant of the Outreach Program for Women. My project is fuzz testing of support of qcow2 image format. The project git: https://github.com/maxalab/qemu_fuzzer.git It's pubic, so welcome, make yourself at home. The blog: http://eeff.catit.be/ It's empty