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[NVD] -- https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-6131
The demangler in GNU Libiberty allows remote attackers to cause a denial
of service (infinite loop, stack overflow, and crash) via a cycle in the
references of remembered mangled types.
[BZ #71696] -- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71696
2016-08-04 Marcel Böhme <boehme.marcel@gmail.com>
PR c++/71696
* cplus-dem.c: Prevent infinite recursion when there is a cycle
in the referencing of remembered mangled types.
(work_stuff): New stack to keep track of the remembered mangled
types that are currently being processed.
(push_processed_type): New method to push currently processed
remembered type onto the stack.
(pop_processed_type): New method to pop currently processed
remembered type from the stack.
(work_stuff_copy_to_from): Copy values of new variables.
(delete_non_B_K_work_stuff): Free stack memory.
(demangle_args): Push/Pop currently processed remembered type.
(do_type): Do not demangle a cyclic reference and push/pop
referenced remembered type.
cherry-picked from commit of
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@239143 138bc75d-0d04-0410-961f-82ee72b054a4
(From OE-Core rev: 3c288b181a4cfecc80b48994f4dd2df285e4d1d0)
(From OE-Core rev: 96a16c4181d18b8580dad243350d589586cb2b07)
Signed-off-by: Yuanjie Huang <yuanjie.huang@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Fixes build on hardened PAX host with gcc-5 (linker error on relocs).
Completes no-PIE config by adding to ALL_* flags variables.
Borrowed from Gentoo gcc patches, tested on 2 hardened amd64 hosts.
Upstream-Status: Inappropriate [configuration]
Commited by: Gentoo Toolchain Project <toolchain@gentoo.org>
(From OE-Core rev: c178791cd78d5a9ebc4d7b7790e647a9bafe9cf2)
(From OE-Core rev: fcb236ea7cd1ac052719187fefed60ebf1a30ac8)
Signed-off-by: Stephen Arnold <stephen.arnold42@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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GCC provides some of std* headers including stddef.h
and it syncs with glibc definitions via __needed* defines
to find which datatypes are expected to be defined on top
of glibc. we need same for musl.
Drop unused 0048-ARM-PR-target-71056-Don-t-use-vectorized-builtins-wh.patch
(From OE-Core rev: 7da04721a620ad741ea50adf116e6b5afd47caa5)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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6.3.0 is a bugfix release in gcc 6 series
(From OE-Core rev: 36ffcd1d7d2ab9dcc91e9c09623a6613a248bc69)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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