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
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fpu	Update i686 ulps.	2020-09-02 10:00:29 -04:00
htl	hurd: fix clearing SS_ONSTACK when longjmp-ing from sighandler	2020-06-06 20:24:30 +02:00
i586	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
i686	x86: Install <sys/platform/x86.h> [BZ #26124]	2020-09-11 17:20:52 -07:00
i786
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_chk.S
__longjmp.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
addmul_1.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
asm-syntax.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
backtrace.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
bcopy.S
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
bzero.S
configure
configure.ac
crti.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
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: Move CET control to _dl_x86_feature_control [BZ #25887]	2020-05-18 06:15:02 -07:00
dl-procinfo.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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gccframe.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
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htons.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
i386-mcount.S	i386-mcount.S: Add _CET_ENDBR to _mcount and __fentry__	2020-02-01 05:44:55 -08:00
Implies
isa.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
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link-defines.sym
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: Remove the unused __x86_prefetchw	2020-07-11 09:34:03 -07:00
malloc-alignment.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
memchr.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
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memcpy.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
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memmove.S
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mempcpy.S
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memusage.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
mp_clz_tab.c
mul_1.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
preconfigure
pthread_spin_trylock.S	linux: Consolidate INLINE_SYSCALL	2020-02-14 21:09:12 -03:00
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rshift.S	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
setfpucw.c	x86: Support usable check for all CPU features	2020-07-13 06:05:16 -07:00
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stackguard-macros.h
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sub_n.S	i386/sub_n.S: Add a missing _CET_ENDBR to indirect jump target	2020-02-01 05:44:55 -08:00
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symbol-hacks.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
sysdep.h	i386: Remove build support for GCC older than GCC 6	2020-04-07 06:44:37 -07:00
tls-macros.h	i386: Remove build support for GCC older than GCC 6	2020-04-07 06:44:37 -07:00
tlsdesc.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
tlsdesc.sym
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tst-ld-sse-use.sh	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
tst-stack-align.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
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