be8183701a
glibc's tst-makecontext2 testcase uncovered a bug in
__cont_link_context. If the function misses to reserve
shadow space for the calls to setcontext/cygwin_exit,
both functions could overwrite memory beyond the stack
configured in uc_stack.
* exceptions.cc (__cont_link_context): x86_64: align stack and reserve
shadow space for subsequent function calls, otherwise suffer potential
buffer overflow.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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| .. | ||
| cygserver | ||
| cygwin | ||
| doc | ||
| lsaauth | ||
| testsuite | ||
| utils | ||
| acinclude.m4 | ||
| aclocal.m4 | ||
| autogen.sh | ||
| c++wrap | ||
| ccwrap | ||
| ChangeLog | ||
| config.guess | ||
| config.sub | ||
| configure | ||
| configure.ac | ||
| configure.cygwin | ||
| COPYING | ||
| CYGWIN_LICENSE | ||
| install-sh | ||
| Makefile.common | ||
| Makefile.in | ||
| README | ||
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cygwin documentation is available on the net at http://cygwin.com You might especially be interested in http://cygwin.com/faq/faq.programming.html#faq.programming.building-cygwin