Szabolcs Nagy 238032ead6 aarch64: enforce >=64K guard size [BZ #26691] ... There are several compiler implementations that allow large stack allocations to jump over the guard page at the end of the stack and corrupt memory beyond that. See CVE-2017-1000364. Compilers can emit code to probe the stack such that the guard page cannot be skipped, but on aarch64 the probe interval is 64K by default instead of the minimum supported page size (4K). This patch enforces at least 64K guard on aarch64 unless the guard is disabled by setting its size to 0. For backward compatibility reasons the increased guard is not reported, so it is only observable by exhausting the address space or parsing /proc/self/maps on linux. On other targets the patch has no effect. If the stack probe interval is larger than a page size on a target then ARCH_MIN_GUARD_SIZE can be defined to get large enough stack guard on libc allocated stacks. The patch does not affect threads with user allocated stacks. Fixes bug 26691.		2020-10-02 09:57:44 +01:00
..
bits	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
fpu	mips: Use sqrt{f} builtin	2020-06-22 11:09:49 -03:00
ieee754	Rename __LONG_DOUBLE_USES_FLOAT128 to __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI	2020-04-30 08:52:08 -05:00
include/sys	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
mips32	mips: Use sqrt{f} builtin	2020-06-22 11:09:49 -03:00
mips64	mips: Use sqrt{f} builtin	2020-06-22 11:09:49 -03:00
nofpu	Do not define various fenv.h macros for MIPS soft-float (bug 23479).	2018-08-02 15:53:29 +00:00
nptl	aarch64: enforce >=64K guard size [BZ #26691]	2020-10-02 09:57:44 +01:00
sys	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
__longjmp.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
abort-instr.h
add_n.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
addmul_1.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
atomic-machine.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
bsd-_setjmp.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
bsd-setjmp.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
configure
configure.ac
dl-dtprocnum.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-machine-reject-phdr.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-machine.h	elf: Introduce <elf_machine_sym_no_match.h>	2020-04-24 22:13:03 +02:00
dl-procinfo.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-procinfo.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-tls.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-trampoline.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
elf_machine_sym_no_match.h	elf: Introduce <elf_machine_sym_no_match.h>	2020-04-24 22:13:03 +02:00
elf-initfini.h	Introduce <elf-initfini.h> and ELF_INITFINI for all architectures	2020-02-18 15:12:25 +01:00
fpregdef.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
fpu_control.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
gccframe.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
Implies
jmpbuf-unwind.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
ldbl-classify-compat.h	Move LDBL_CLASSIFY_COMPAT to its own header.	2018-02-01 21:01:00 +00:00
ldsodefs.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
libc-tls.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
linkmap.h	MIPS support for GNU hash	2019-08-29 20:11:42 +00:00
localplt.data	Add localplt.data for MIPS.	2016-11-04 16:40:54 +00:00
lshift.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
machine-gmon.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
Makefile	[MIPS] Raise highest supported EI_ABIVERSION value [BZ #24916]	2019-08-23 16:47:27 +00:00
math-tests-snan-payload.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
memcpy.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
memset.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
memusage.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
mul_1.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
nan-high-order-bit.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
preconfigure	Remove --with-fp / --without-fp.	2017-12-12 13:56:47 +00:00
regdef.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
rshift.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
setjmp_aux.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
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tininess.h
tls-macros.h
tst-abi-fp32mod.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
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