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glibc/sysdeps
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H.J. Lu 9aaa083387 x86-64 memcmp: Use unsigned Jcc instructions on size [BZ #24155] 
Since the size argument is unsigned. we should use unsigned Jcc
instructions, instead of signed, to check size.

Tested on x86-64 and x32, with and without --disable-multi-arch.

	[BZ #24155]
	CVE-2019-7309
	* NEWS: Updated for CVE-2019-7309.
	* sysdeps/x86_64/memcmp.S: Use RDX_LP for size.  Clear the
	upper 32 bits of RDX register for x32.  Use unsigned Jcc
	instructions, instead of signed.
	* sysdeps/x86_64/x32/Makefile (tests): Add tst-size_t-memcmp-2.
	* sysdeps/x86_64/x32/tst-size_t-memcmp-2.c: New test.

(cherry picked from commit 3f635fb433)
2019-02-04 08:56:04 -08:00
..
aarch64 [BZ #20271] Add newlines in __libc_fatal calls. 2018-11-09 10:17:07 -05:00
alpha Update Alpha libm-test-ulps 2018-12-28 11:24:48 +01:00
arm [BZ #20271] Add newlines in __libc_fatal calls. 2018-11-09 10:17:07 -05:00
generic [BZ #20271] Add newlines in __libc_fatal calls. 2018-11-09 10:17:07 -05:00
gnu hurd: Fix shmid_ds's shm_segsz field type 2018-06-02 21:52:43 +02:00
hppa Mark _init and _fini as hidden [BZ #23145] 2018-06-08 10:28:52 -07:00
htl hurd: Avoid PLTs for __pthread_get/setspecific 2018-08-09 01:30:13 +02:00
hurd Fix ISO C threads installed header and HURD assumption 2018-07-25 17:27:45 -03:00
i386 [BZ #20271] Add newlines in __libc_fatal calls. 2018-11-09 10:17:07 -05:00
ia64 i64: fix missing exp2f, log2f and powf symbols in libm.a [BZ #23822] 2018-10-26 15:49:30 +01:00
ieee754 sysdeps/ieee754/soft-fp: ignore maybe-uninitialized with -O [BZ #19444] 2019-01-03 15:13:10 -02:00
init_array sysdeps/init_array: Add PREINIT_FUNCTION to crti.S 2018-01-29 10:22:26 -08:00
m68k m68k: Reorganize log1p and significand implementations 2018-06-22 21:34:28 -03:00
mach hurd: Fix exec usage of mach_setup_thread 2018-08-01 00:10:03 +02:00
microblaze Mark _init and _fini as hidden [BZ #23145] 2018-06-08 10:28:52 -07:00
mips Mark _init and _fini as hidden [BZ #23145] 2018-06-08 10:28:52 -07:00
nios2 Mark _init and _fini as hidden [BZ #23145] 2018-06-08 10:28:52 -07:00
nptl [BZ #20271] Add newlines in __libc_fatal calls. 2018-11-09 10:17:07 -05:00
posix Fix Linux fcntl OFD locks for non-LFS architectures (BZ#20251) 2018-06-26 13:22:53 -03:00
powerpc powerpc: Add missing CFI register information (bug #23614) 2018-12-13 09:42:22 +01:00
pthread hurd: fix sigevent's sigev_notify_attributes field type 2018-04-19 21:43:44 +02:00
riscv RISC-V: properly terminate call chain (bug 23125) 2018-12-15 21:57:43 +01:00
s390 [BZ #20271] Add newlines in __libc_fatal calls. 2018-11-09 10:17:07 -05:00
sh Update SH libm-tests-ulps 2018-07-31 10:33:53 -03:00
sparc [BZ #20271] Add newlines in __libc_fatal calls. 2018-11-09 10:17:07 -05:00
unix ARM: fix kernel assisted atomics with GCC 8 (bug 24034) 2019-01-03 15:59:14 +01:00
wordsize-32 Use libc_hidden_* for strtoumax (bug 15105). 2018-02-28 14:16:21 +00:00
wordsize-64 Use libc_hidden_* for strtoumax (bug 15105). 2018-02-28 14:16:21 +00:00
x86 Check multiple NT_GNU_PROPERTY_TYPE_0 notes [BZ #23509] 2018-11-08 10:52:32 -08:00
x86_64 x86-64 memcmp: Use unsigned Jcc instructions on size [BZ #24155] 2019-02-04 08:56:04 -08:00