Messages in this thread | | | Date | Wed, 27 Jan 1999 12:02:15 -0500 (EST) | From | Kevin Z Grey <> | Subject | Re: 2.2.0 SECURITY |
| |
On Wed, 27 Jan 1999, Richard Gooch wrote:
> Dan Burcaw writes: > > > > There is a bug that works only on the 2.2.0 kernel that will allow root > > and non-root users to crash the machine (the system reboots). > > > > To replicate this bug do following: > > > > Take any core file, and as normal user or root run: ldd core > > > > The machine will reboot, saying that it cannot get execution permissions > > for ./core > > > > As far as I can tell, this problem only affects x86 machines running > > 2.2.0. I know that PPC is not affected. > > Just tried this on a dual PPro: > > % cat > try.c > void main () > { > * (unsigned int *) 0 = 0; > } > % cc -o try try.c > % ./try > Segmentation fault > % ldd core > % dmesg | tail -1 > perfmon: v0.4 (19990127) Richard Gooch (rgooch@atnf.csiro.au), 2 counters > > Nope, doesn't cause a reboot, panic, Oops or any problems > here. Running as root makes no difference. > > Regards, > > Richard....
Worked for me on a Dual PPro 300. rebooted at ldd core.
~~Kev
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |