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231c56760c
glibc/sysdeps/x86_64
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H.J. Lu 231c56760c x86-64 memcpy: Properly handle the length parameter [BZ# 24097] 
On x32, the size_t parameter may be passed in the lower 32 bits of a
64-bit register with the non-zero upper 32 bits.  The string/memory
functions written in assembly can only use the lower 32 bits of a
64-bit register as length or must clear the upper 32 bits before using
the full 64-bit register for length.

This pach fixes memcpy for x32.  Tested on x86-64 and x32.  On x86-64,
libc.so is the same with and withou the fix.

	[BZ# 24097]
	CVE-2019-6488
	* sysdeps/x86_64/multiarch/memcpy-ssse3-back.S: Use RDX_LP for
	length.  Clear the upper 32 bits of RDX register.
	* sysdeps/x86_64/multiarch/memcpy-ssse3.S: Likewise.
	* sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S:
	Likewise.
	* sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:
	Likewise.
	* sysdeps/x86_64/x32/Makefile (tests): Add tst-size_t-memcpy.
	tst-size_t-wmemchr.
	* sysdeps/x86_64/x32/tst-size_t-memcpy.c: New file.
2019-01-21 11:27:36 -08:00
..
64
fpu Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
multiarch x86-64 memcpy: Properly handle the length parameter [BZ# 24097] 2019-01-21 11:27:36 -08:00
nptl x86_64: Remove wrong THREAD_ATOMIC_* macros 2019-01-03 18:38:14 -02:00
x32 x86-64 memcpy: Properly handle the length parameter [BZ# 24097] 2019-01-21 11:27:36 -08:00
____longjmp_chk.S
__longjmp.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
_mcount.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
abort-instr.h
add_n.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
addmul_1.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
bsd-_setjmp.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
bsd-setjmp.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
bzero.S
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. 2019-01-01 00:11:28 +00:00
crtn.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dl-irel.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dl-lookupcfg.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dl-machine.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dl-procinfo.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dl-runtime.c
dl-tls.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dl-tls.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dl-tlsdesc.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dl-tlsdesc.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dl-trampoline.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
dl-trampoline.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ffs.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ffsll.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
htonl.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ifuncmain8.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ifuncmod8.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
Implies
isa.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
l10nflist.c
ldbl2mpn.c
link-defines.sym
locale-defines.sym
localplt.data ld.so: Introduce struct dl_exception 2017-08-10 16:54:57 +02:00
lshift.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
machine-gmon.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
Makefile Rename the glibc.tune namespace to glibc.cpu 2018-08-02 23:49:19 +05:30
memchr.S x86-64 memchr/wmemchr: Properly handle the length parameter [BZ# 24097] 2019-01-21 11:24:13 -08:00
memcmp.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
memcopy.h
memcpy_chk.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
memcpy.S
memmove_chk.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
memmove.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
mempcpy_chk.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
mempcpy.S
memrchr.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
memset_chk.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
memset.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
memusage.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
mp_clz_tab.c
mul_1.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
preconfigure
preconfigure.ac
rawmemchr.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
rshift.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
rtld-offsets.sym
sched_cpucount.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
setjmp.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
stack-aliasing.h
stackguard-macros.h
stackinfo.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
start.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
stpcpy.S
strcasecmp_l-nonascii.c
strcasecmp_l.S
strcasecmp.S
strcat.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
strchr.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
strchrnul.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
strcmp.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
strcpy.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
strcspn.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
strlen.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
strncase_l-nonascii.c
strncase_l.S
strncase.S
strncmp.S
strnlen.S
strpbrk.S
strrchr.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
strspn.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sub_n.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
submul_1.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tls_get_addr.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tls-macros.h
tlsdesc.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tlsdesc.sym
tst-audit3.c
tst-audit4-aux.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-audit4.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-audit5.c
tst-audit6.c
tst-audit7.c
tst-audit10-aux.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-audit10.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-audit.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-auditmod3a.c
tst-auditmod3b.c
tst-auditmod4a.c
tst-auditmod4b.c
tst-auditmod5a.c
tst-auditmod5b.c
tst-auditmod6a.c
tst-auditmod6b.c
tst-auditmod6c.c
tst-auditmod7a.c
tst-auditmod7b.c
tst-auditmod10a.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-auditmod10b.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-avx512-aux.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-avx512.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-avx512mod.c
tst-avx-aux.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-avx.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-avxmod.c
tst-mallocalign1.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-platform-1.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-platformmod-1.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-platformmod-2.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-quad1.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-quad1pie.c
tst-quad2.c
tst-quad2pie.c
tst-quadmod1.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-quadmod1pie.S
tst-quadmod2.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-quadmod2pie.S
tst-split-dynreloc.c
tst-split-dynreloc.lds
tst-sse.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-ssemod.c
tst-stack-align.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-x86_64-1.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
tst-x86_64mod-1.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
Versions Move __fentry__ version definition to sysdeps/{i386,x86_64} 2018-08-10 09:07:44 +02:00
wcschr.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
wcscmp.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
wcslen.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
wcsrchr.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
wmemset_chk.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
wmemset.S
wordcopy.c