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glibc/sysdeps/i386
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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
..
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 Also applying directories. 1999-01-24 10:39:22 +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_chk.S Add sigstack handling to Linux ____longjmp_chk on i386. 2009-07-30 21:50:14 -07:00
__longjmp.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
abort-instr.h update from main archive 961220 1996-12-21 04:13:58 +00:00
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 Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
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
bzero.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
configure Add --enable-static-pie configure option to build static PIE [BZ #19574] 2017-12-15 17:12:14 -08:00
configure.ac Add --enable-static-pie configure option to build static PIE [BZ #19574] 2017-12-15 17:12:14 -08:00
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
dl-tlsdesc.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
dl-trampoline.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
ffs.c 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
htonl.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
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 Add float128 support for x86_64, x86. 2017-06-26 22:02:24 +00:00
isa.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +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
link-defines.sym Preserve bound registers for pointer pass/return 2015-07-09 06:50:12 -07:00
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: 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
memcmp.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
memcopy.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
memcpy_chk.S 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
memmove_chk.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
memmove.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
mempcpy_chk.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
mempcpy.S Add i386 memset and memcpy assembly functions 2015-08-27 09:04:54 -07:00
memset_chk.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
mp_clz_tab.c Update. 2002-03-14 20:48:50 +00:00
mul_1.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
preconfigure Move base_machine and machine settings from configure.ac to sysdeps preconfigure fragments. 2014-06-25 17:52:56 +00:00
pthread_spin_trylock.S linux: Consolidate INLINE_SYSCALL 2020-02-14 21:09:12 -03:00
rawmemchr.S 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
setfpucw.c x86: Support usable check for all CPU features 2020-07-13 06:05:16 -07:00
setjmp.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
stackguard-macros.h BZ #15754: CVE-2013-4788 2013-09-23 00:52:09 -04:00
stackinfo.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
start.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
stpcpy.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
stpncpy.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
strcat.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
strchr.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
strchrnul.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
strcspn.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
string-inlines.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
strlen.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
strlen.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
strpbrk.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
strrchr.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
strspn.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
sub_n.S i386/sub_n.S: Add a missing _CET_ENDBR to indirect jump target 2020-02-01 05:44:55 -08:00
submul_1.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
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 Introduce TLS descriptors for i386 and x86_64. 2008-05-13 05:41:30 +00:00
tst-audit3.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-audit3.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-audit.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-auditmod3a.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
tst-auditmod3b.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
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
Versions Move __fentry__ version definition to sysdeps/{i386,x86_64} 2018-08-10 09:07:44 +02:00