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
..
64
fpu	x86: Install <sys/platform/x86.h> [BZ #26124]	2020-09-11 17:20:52 -07:00
multiarch	x86: Install <sys/platform/x86.h> [BZ #26124]	2020-09-11 17:20:52 -07:00
nptl	aarch64: enforce >=64K guard size [BZ #26691]	2020-10-02 09:57:44 +01:00
x32	Remove unused floating-point configuration from gmp-impl.h.	2020-04-28 15:05:09 +00:00
____longjmp_chk.S
__longjmp.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
_mcount.S	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
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bzero.S
configure
configure.ac
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crtn.S	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-machine.h	x86: Support usable check for all CPU features	2020-07-13 06:05:16 -07:00
dl-procinfo.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-runtime.h	dl-runtime: reloc_{offset,index} now functions arch overide'able	2020-06-05 13:45:46 -07:00
dl-tls.c	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
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htonl.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
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Implies
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l10nflist.c
link-defines.sym
locale-defines.sym
localplt.data	ld.so: Do not export free/calloc/malloc/realloc functions [BZ #25486]	2020-02-15 11:01:23 +01:00
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	x86: Support usable check for all CPU features	2020-07-13 06:05:16 -07:00
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memcpy.S
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mp_clz_tab.c
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preconfigure
preconfigure.ac
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rtld-offsets.sym
sched_cpucount.c	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
stack-aliasing.h
stackguard-macros.h
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start.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
stpcpy.S
strcasecmp_l-nonascii.c
strcasecmp_l.S
strcasecmp.S
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strncase_l-nonascii.c
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strncase.S
strncmp.S
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strpbrk.S
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tls-macros.h
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tlsdesc.sym
tst-audit3.c
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tst-auditmod5a.c
tst-auditmod5b.c
tst-auditmod6a.c
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tst-avxmod.c
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tst-quad1pie.c
tst-quad2.c
tst-quad2pie.c
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tst-quadmod1pie.S
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tst-split-dynreloc.c
tst-split-dynreloc.lds
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tst-ssemod.c
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Versions
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wmemset.S
wordcopy.c