https://bugs.exim.org/show_bug.cgi?id=2923
--- Comment #4 from Andreas Metzler <eximus...@bebt.de> --- (In reply to Patrick Welche from comment #0) > Running an exim 4.96 server compiled with > > CFLAGS=-O2 -fPIC -D_FORTIFY_SOURCE=2 > > mail delivery failed because the stack protector claimed > > exim - - - stack overflow detected; terminated > > _FORTIFY_SOURCE=2 includes runtime checks. > > I have recompiled lowering to _FORTIFY_SOURCE=1 to avoid this, but > it suggests there is a bug somewhere... Hello, just to provide some background: https://www.redhat.com/en/blog/security-technologies-fortifysource So, yes there probably is a issue. However more info is needed (backtrace, etc.) building exim with -D_FORTIFY_SOURCE=2 is not sufficient to reproduce this, e.g. Debian's exim packages have been built with -D_FORTIFY_SOURCE=2 for more than ten years. (I do not get why you are building with fPIC, though, should you be using PIE instead for an executable?) cu Andreas -- You are receiving this mail because: You are on the CC list for the bug. -- ## List details at https://lists.exim.org/mailman/listinfo/exim-dev Exim details at http://www.exim.org/ ##
