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Noah Goldstein 5373c90f2e x86: Fix bug in strncmp-evex and strncmp-avx2 [BZ #28895] 
Logic can read before the start of `s1` / `s2` if both `s1` and `s2`
are near the start of a page. To avoid having the result contimated by
these comparisons the `strcmp` variants would mask off these
comparisons. This was missing in the `strncmp` variants causing
the bug. This commit adds the masking to `strncmp` so that out of
range comparisons don't affect the result.

test-strcmp, test-strncmp, test-wcscmp, and test-wcsncmp all pass as
well a full xcheck on x86_64 linux.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>

(cherry picked from commit e108c02a5e23c8c88ce66d8705d4a24bb6b9a8bf)
2022-05-05 09:11:49 -07:00
..
bits
debug: Synchronize feature guards in fortified functions [BZ #28746]
2022-03-11 20:36:24 +05:30
_strerror.c
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argz-addsep.c
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argz-append.c
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argz-count.c
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argz-create.c
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argz-ctsep.c
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argz-delete.c
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argz-extract.c
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argz-insert.c
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argz-next.c
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argz-replace.c
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argz-stringify.c
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argz.h
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basename.c
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bcopy.c
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bug-envz1.c
Update string tests to use the support test driver.
2017-03-23 11:32:29 -03:00
bug-strcoll1.c
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bug-strcoll2.c
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bug-strncat1.c
Fix string/bug-strncat1.c build with GCC 8.
2017-11-14 17:50:36 +00:00
bug-strpbrk1.c
Fix bug-strspn1.c, bug-strpbrk1.c build with GCC mainline.
2018-06-20 22:18:22 +00:00
bug-strspn1.c
Fix bug-strspn1.c, bug-strpbrk1.c build with GCC mainline.
2018-06-20 22:18:22 +00:00
bug-strtok1.c
Update string tests to use the support test driver.
2017-03-23 11:32:29 -03:00
byteswap.h
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bzero.c
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Depend
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endian.h
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envz.c
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envz.h
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explicit_bzero.c
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ffs.c
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ffsll.c
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inl-tester.c
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Makefile
dlfcn: Cleanups after -ldl is no longer required
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memccpy.c
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memchr.c
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memcmp.c
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memcpy.c
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memfrob.c
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memmem.c
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memmove.c
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memory.h
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mempcpy.c
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memrchr.c
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memset.c
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noinl-tester.c
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rawmemchr.c
string: Work around GCC PR 98512 in rawmemchr
2021-02-19 13:29:00 +01:00
sigabbrev_np.c
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sigdescr_np.c
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stpcpy.c
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stpncpy.c
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str-two-way.h
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stratcliff.c
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strcasecmp_l.c
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strcasecmp.c
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strcasestr.c
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strcat.c
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strchr.c
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strchrnul.c
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strcmp.c
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strcoll_l.c
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strcoll.c
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strcpy.c
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strcspn.c
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strdup.c
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strerror_l.c
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strerror.c
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strerrordesc_np.c
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strerrorname_np.c
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strfry.c
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string-inlines.c
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string.h
Don't add access size hints to fortifiable functions
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strings.h
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strlen.c
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strncase_l.c
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strncase.c
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strncat.c
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strncmp.c
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strncpy.c
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strndup.c
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strnlen.c
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strpbrk.c
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strrchr.c
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strsep.c
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strsignal.c
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strspn.c
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strstr.c
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strtok_r.c
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strtok.c
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strverscmp.c
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strxfrm_l.c
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strxfrm.c
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swab.c
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test-bcopy.c
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test-bzero.c
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test-endian-file-scope.c
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test-endian-sign-conversion.c
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test-endian-types.c
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test-explicit_bzero.c
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test-ffs.c
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test-memccpy.c
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test-memchr.c
String: Add overflow tests for strnlen, memchr, and strncat [BZ #27974]
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test-memcmp.c
x86: Expand bench-memcmp.c and test-memcmp.c
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test-memcpy.c
x86: Expanding test-memmove.c, test-memcpy.c, bench-memcpy-large.c
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test-memmem.c
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test-memmove.c
Reindent string/test-memmove.c
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test-mempcpy.c
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test-memrchr.c
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test-memset.c
x86: Expand test-memset.c and bench-memset.c
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test-rawmemchr.c
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test-sig_np.c
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test-stpcpy.c
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test-stpncpy.c
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test-strcasecmp.c
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test-strcasestr.c
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test-strcat.c
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test-strchr.c
strchr: Add additional benchmarks and tests
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test-strchrnul.c
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test-strcmp.c
x86-64: Use notl in EVEX strcmp [BZ #28646]
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test-strcpy.c
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test-strcspn.c
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test-strerror-errno.c
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test-string.h
tests: use xmalloc to allocate implementation array
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test-strlen.c
Improve test coverage of strlen function
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test-strncasecmp.c
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test-strncat.c
String: Add overflow tests for strnlen, memchr, and strncat [BZ #27974]
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test-strncmp.c
x86: Fix bug in strncmp-evex and strncmp-avx2 [BZ #28895]
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test-strncpy.c
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test-strnlen.c
String: Add three more overflow tests cases to test-strnlen.c
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test-strpbrk.c
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test-strrchr.c
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test-strspn.c
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test-strstr.c
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testcopy.c
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tester.c
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tst-bswap.c
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tst-cmp.c
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tst-endian.c
Update string tests to use the support test driver.
2017-03-23 11:32:29 -03:00
tst-inlcall.c
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tst-memmove-overflow.c
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tst-strcoll-overflow.c
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tst-strerror.c
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tst-strfry.c
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tst-strlen.c
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tst-strsignal.c
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tst-strtok_r.c
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tst-strtok.c
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tst-strxfrm2.c
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tst-strxfrm.c
Update string tests to use the support test driver.
2017-03-23 11:32:29 -03:00
tst-svc2.c
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tst-svc.c
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tst-svc.expect
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tst-svc.input
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tst-xbzero-opt.c
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Versions
string: Add strerrorname_np and strerrordesc_np
2020-07-07 15:02:57 -03:00
wordcopy.c
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xpg-strerror.c
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