Comments for Fotis' Blog http://fotis.loukos.me/blog Mon, 09 Aug 2010 10:29:45 +0000 hourly 1 http://wordpress.org/?v=3.0.1 Comment on Debugging the linux kernel using kgdb and VirtualBox by Fotis http://fotis.loukos.me/blog/?p=25&cpage=1#comment-1851 Fotis Mon, 09 Aug 2010 10:29:45 +0000 http://fotis.loukos.me/blog/?p=25#comment-1851 <a href="#comment-1575" rel="nofollow">@greg </a> You're right! When I wrote the post I made a test and used /tmp/serial_vm_debian as the socket name! The correct name is /home/fotisl/virtualbox/myvm/serial1. I have corrected the error! Thanks! @greg
You’re right! When I wrote the post I made a test and used /tmp/serial_vm_debian as the socket name! The correct name is /home/fotisl/virtualbox/myvm/serial1. I have corrected the error! Thanks!

]]> Comment on Debugging the linux kernel using kgdb and VirtualBox by greg http://fotis.loukos.me/blog/?p=25&cpage=1#comment-1575 greg Sun, 25 Jul 2010 17:06:52 +0000 http://fotis.loukos.me/blog/?p=25#comment-1575 This si good but I had a question.... where did "/tmp/serial_vm_debian" in the socat command come from? Did you just make that filename up? At any rate, when I run socat -d -d /tmp/serial_vm_debian it just says EOF and exits. This si good but I had a question…. where did “/tmp/serial_vm_debian” in the socat command come from? Did you just make that filename up? At any rate, when I run socat -d -d /tmp/serial_vm_debian it just says EOF and exits.

]]> Comment on Linux kernel pipe NULL pointer dereference exploit (CVE-2009-3547) by Weasel5i2 http://fotis.loukos.me/blog/?p=91&cpage=1#comment-1122 Weasel5i2 Fri, 21 May 2010 22:25:15 +0000 http://fotis.loukos.me/blog/?p=91#comment-1122 What does it mean if the program responds with "mmap: Invalid argument" ? What does it mean if the program responds with “mmap: Invalid argument” ?

]]> Comment on Debugging the linux kernel using kgdb and VirtualBox by Fotis http://fotis.loukos.me/blog/?p=25&cpage=1#comment-763 Fotis Mon, 12 Apr 2010 19:04:46 +0000 http://fotis.loukos.me/blog/?p=25#comment-763 I think you transfered the vmlinuz file, which is a stripped version of vmlinux with some other stuff to make it bootable. You can check http://en.wikipedia.org/wiki/Vmlinuz for more information. I think you transfered the vmlinuz file, which is a stripped version of vmlinux with some other stuff to make it bootable. You can check http://en.wikipedia.org/wiki/Vmlinuz for more information.

]]> Comment on Debugging the linux kernel using kgdb and VirtualBox by shogun1234 http://fotis.loukos.me/blog/?p=25&cpage=1#comment-742 shogun1234 Sat, 10 Apr 2010 20:25:08 +0000 http://fotis.loukos.me/blog/?p=25#comment-742 Sorry, I think I know what's the root cuase. It is because the vmlinux-2.6.33.1 (2.5m) obtained previously is from /boot/, which is compressed. The one need to be loaded is located in the folder where we compile the source e.g. /path/to/linux-2.6.33.1/; and size is around e.g. 104m. Thanks again for this post. Sorry, I think I know what’s the root cuase. It is because the vmlinux-2.6.33.1 (2.5m) obtained previously is from /boot/, which is compressed. The one need to be loaded is located in the folder where we compile the source e.g. /path/to/linux-2.6.33.1/; and size is around e.g. 104m.

Thanks again for this post.

]]> Comment on Debugging the linux kernel using kgdb and VirtualBox by shogun1234 http://fotis.loukos.me/blog/?p=25&cpage=1#comment-741 shogun1234 Sat, 10 Apr 2010 20:10:36 +0000 http://fotis.loukos.me/blog/?p=25#comment-741 Fotis, thanks to provide such article. It is useful. But Now I encounter a problem. After transfering vmlinux image from guest os (debian/ 2.6.33.1) back to the host machine (debian/ 2.6.32.8). I load vmlinux image with gdb with command - `gdb vmlinux-2.6.33.1,` but it complains with error saying `not in executable format: File format not recognized.' Looks like gdb can not recognized vmlinux image of elf format from guest os. What steps I may miss? Thanks for help. Fotis, thanks to provide such article. It is useful.

But Now I encounter a problem. After transfering vmlinux image from guest os (debian/ 2.6.33.1) back to the host machine (debian/ 2.6.32.8). I load vmlinux image with gdb with command – `gdb vmlinux-2.6.33.1,` but it complains with error saying `not in executable format: File format not recognized.’ Looks like gdb can not recognized vmlinux image of elf format from guest os. What steps I may miss?

Thanks for help.

]]> Comment on PreZ: my new injector! by thanasisk http://fotis.loukos.me/blog/?p=149&cpage=1#comment-543 thanasisk Thu, 25 Mar 2010 18:17:19 +0000 http://fotis.loukos.me/blog/?p=149#comment-543 Yeah, you give them to your XAKER pals! Yeah, you give them to your XAKER pals!

]]> Comment on PreZ: my new injector! by Fotis http://fotis.loukos.me/blog/?p=149&cpage=1#comment-542 Fotis Thu, 25 Mar 2010 12:51:44 +0000 http://fotis.loukos.me/blog/?p=149#comment-542 @argp Thanks! @thanasisk Don't ask me for more warez :P @argp Thanks!

@thanasisk Don’t ask me for more warez :P

]]> Comment on PreZ: my new injector! by thanasisk http://fotis.loukos.me/blog/?p=149&cpage=1#comment-540 thanasisk Thu, 25 Mar 2010 11:56:42 +0000 http://fotis.loukos.me/blog/?p=149#comment-540 \m/ \m/ *headbang* \m/ \m/ *headbang*

]]> Comment on PreZ: my new injector! by argp http://fotis.loukos.me/blog/?p=149&cpage=1#comment-537 argp Thu, 25 Mar 2010 00:31:04 +0000 http://fotis.loukos.me/blog/?p=149#comment-537 I really enjoyed your talk Fotis, nice work. I really enjoyed your talk Fotis, nice work.

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