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	aarch64: Remove fpu Makefile	2020-06-22 11:09:50 -03:00
multiarch	AArch64: Improve backwards memmove performance	2020-08-28 17:51:40 +01:00
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.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
abort-instr.h	Relocate AArch64 from ports to libc.	2014-02-11 11:36:00 +00:00
atomic-machine.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
bsd-_setjmp.c	aarch64: Rename place holder .S files to .c	2020-07-08 15:02:37 +01:00
bsd-setjmp.c	aarch64: Rename place holder .S files to .c	2020-07-08 15:02:37 +01:00
configure	aarch64: configure check for pac-ret code generation	2020-07-08 15:02:38 +01:00
configure.ac	aarch64: configure check for pac-ret code generation	2020-07-08 15:02:38 +01:00
crti.S	aarch64: Add pac-ret support to assembly files	2020-07-08 15:02:38 +01:00
crtn.S	aarch64: Add pac-ret support to assembly files	2020-07-08 15:02:38 +01:00
dl-bti.c	aarch64: Respect p_flags when protecting code with PROT_BTI	2020-07-24 08:52:22 +01:00
dl-dtprocnum.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-irel.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-link.sym	Relocate AArch64 from ports to libc.	2014-02-11 11:36:00 +00:00
dl-machine.h	aarch64: fix RTLD_START for BTI	2020-07-08 15:02:37 +01:00
dl-prop.h	aarch64: enable BTI at runtime	2020-07-08 15:02:37 +01:00
dl-sysdep.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-tlsdesc.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-tlsdesc.S	aarch64: Add pac-ret support to assembly files	2020-07-08 15:02:38 +01:00
dl-trampoline.S	aarch64: Add pac-ret support to assembly files	2020-07-08 15:02:38 +01:00
dl-tunables.list	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
e_sqrtl.c	Add libm_alias_finite for _finite symbols	2020-01-03 10:02:04 -03:00
elf-initfini.h	Introduce <elf-initfini.h> and ELF_INITFINI for all architectures	2020-02-18 15:12:25 +01:00
Implies	Remove sysdeps/aarch64/soft-fp directory.	2018-05-22 17:23:34 +00:00
jmpbuf-offsets.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
jmpbuf-unwind.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +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
libm-test-ulps	aarch64: update ulps.	2020-08-13 13:02:35 +01:00
libm-test-ulps-name	Do not hardcode platform names in manual/libm-err-tab.pl (bug 14139).	2016-11-04 16:49:06 +00:00
linkmap.h	aarch64: enable BTI at runtime	2020-07-08 15:02:37 +01:00
machine-gmon.h	aarch64: fix pac-ret support in _mcount	2020-07-08 15:02:38 +01:00
Makefile	aarch64: ensure objects are BTI compatible	2020-07-08 15:02:38 +01:00
math-tests-trap.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
mcount.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
memchr.S	aarch64: MTE compatible memchr	2020-06-23 17:55:39 +01:00
memcmp.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
memcpy.S	[AArch64] Improve integer memcpy	2020-03-11 17:15:25 +00:00
memmove.c	aarch64: Rename place holder .S files to .c	2020-07-08 15:02:37 +01:00
memrchr.S	aarch64: MTE compatible memrchr	2020-06-23 17:55:39 +01:00
memset-reg.h	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
preconfigure	Remove relro configure test.	2014-06-27 16:51:22 +00:00
rawmemchr.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
setjmp.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
sfp-machine.h	Break more lines before not after operators.	2019-02-25 13:19:19 +00:00
sotruss-lib.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
stackinfo.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
start.S	aarch64: Add BTI support to assembly files	2020-07-08 15:02:37 +01:00
stpcpy.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
strchr.S	aarch64: MTE compatible strchr	2020-06-09 09:20:27 +01:00
strchrnul.S	aarch64: MTE compatible strchrnul	2020-06-09 09:20:27 +01:00
strcmp.S	aarch64: MTE compatible strcmp	2020-06-23 17:55:39 +01:00
strcpy.S	aarch64: MTE compatible strcpy	2020-06-23 17:55:39 +01:00
string_private.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
strlen.S	aarch64: MTE compatible strlen	2020-06-09 09:21:11 +01:00
strncmp.S	aarch64: MTE compatible strncmp	2020-06-23 17:55:39 +01:00
strnlen.S	aarch64: fix strcpy and strnlen for big-endian [BZ #25824]	2020-05-15 12:15:56 +01:00
strrchr.S	aarch64: MTE compatible strrchr	2020-06-23 17:55:39 +01:00
sysdep.h	AArch64: Align ENTRY to a cacheline	2020-07-15 16:50:02 +01:00
tls-macros.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
tlsdesc.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
tlsdesc.sym	aarch64: Use explicit offsets in _dl_tlsdesc_dynamic	2016-12-02 16:52:57 +01:00
tst-audit.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
tst-ifunc-arg-1.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
tst-ifunc-arg-2.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
Versions	Relocate AArch64 from ports to libc.	2014-02-11 11:36:00 +00:00