Messages in this thread | | | Date | Wed, 27 Jan 1999 15:56:23 +1100 | From | Richard Gooch <> | Subject | Re: 2.2.0 SECURITY |
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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....
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