CVS log for src/usr.bin/yacc/skeleton.c

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Default branch: MAIN
Current tag: OPENBSD_4_4

Revision 1.29 / (download) - annotate - [select for diffs], Tue Jul 8 15:06:50 2008 UTC (15 years, 11 months ago) by otto
Branch: MAIN
CVS Tags: OPENBSD_4_6_BASE, OPENBSD_4_6, OPENBSD_4_5_BASE, OPENBSD_4_5, OPENBSD_4_4_BASE, OPENBSD_4_4
Changes since 1.28: +7 -3 lines
Diff to previous 1.28 (colored)

Fix an venerable bug: if we're reducing a rule that has an empty
right hand side and the yacc stackpointer is pointing at the very
end of the allocated stack, we end up accessing the stack out of
bounds by the implicit $$ = $1 action.  Detected by my new malloc,
experienced by sturm@ on sparc64; ok deraadt@

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