On Tuesday, May 14, 2013, Gavin wrote: > On 14 May 2013 18:36, John Andreasson <andreassonj...@gmail.com<javascript:;>> > wrote: > > > > Hi. > > > > Was just alerted of a kernel bug in RHEL [1], but when testing the > sample code on Wheezy as an unprivileged user it successfully gives me a > root prompt. Kind of suboptimal. :-( > > > > Any idea when this is fixed? > > > > [1] https://bugzilla.redhat.com/show_bug.cgi?id=962792 > > Hi John, > > I'm unable to replicate this 'issue' on my up to date Wheezy laptop. > > gavin@caelyn:~$ uname -a > Linux caelyn 3.2.0-4-amd64 #1 SMP Debian 3.2.41-2 x86_64 GNU/Linux > > When I run the compiled binary of this exploit as my unprivileged user > I get the following error:- > > gavin@caelyn:~$ ./getroot > 2.6.37-3.x x86_64 > sd@f***sheep.org 2010 > getroot: getroot.c:81: main: Assertion `p = memmem(code, 1024, > &needle, 8)' failed. > Aborted > > What kernel are you able to replicate this bug with ? >
Hi. I'm on the same kernel version/arch. Did you compile with -O2? I had to compile with that flag for it to work.