diff options
| -rw-r--r-- | ChangeLog | 10 | ||||
| -rw-r--r-- | string/test-strncat.c | 15 | ||||
| -rw-r--r-- | sysdeps/i386/i686/multiarch/strcat-sse2.S | 2 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S | 2 |
4 files changed, 29 insertions, 0 deletions
@@ -1,3 +1,13 @@ +2017-01-03 Adhemerval Zanella <adhemerval.zanella@linaro.org> + + [BZ #19390] + * string/test-strncat.c (test_main): Add tests with SIZE_MAX as + maximum string size. + * sysdeps/i386/i686/multiarch/strcat-sse2.S (STRCAT): Avoid overflow + in pointer addition. + * sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S (STRCPY): + Likewise. + 2017-01-03 Joseph Myers <joseph@codesourcery.com> * elf/Makefile ($(objpfx)tst-ldconfig-X.out): Correct arguments diff --git a/string/test-strncat.c b/string/test-strncat.c index 55d6cc5762..26a6b5b91d 100644 --- a/string/test-strncat.c +++ b/string/test-strncat.c @@ -284,12 +284,23 @@ test_main (void) do_test (0, 0, 8, 8, n, SMALL_CHAR); do_test (0, 8, 8, 8, n, SMALL_CHAR); + do_test (0, 2, 2, 2, SIZE_MAX, SMALL_CHAR); + do_test (0, 0, 4, 4, SIZE_MAX, SMALL_CHAR); + do_test (4, 0, 4, 4, SIZE_MAX, BIG_CHAR); + do_test (0, 0, 8, 8, SIZE_MAX, SMALL_CHAR); + do_test (0, 8, 8, 8, SIZE_MAX, SMALL_CHAR); + for (i = 1; i < 8; ++i) { do_test (0, 0, 8 << i, 8 << i, n, SMALL_CHAR); do_test (8 - i, 2 * i, 8 << i, 8 << i, n, SMALL_CHAR); do_test (0, 0, 8 << i, 2 << i, n, SMALL_CHAR); do_test (8 - i, 2 * i, 8 << i, 2 << i, n, SMALL_CHAR); + + do_test (0, 0, 8 << i, 8 << i, SIZE_MAX, SMALL_CHAR); + do_test (8 - i, 2 * i, 8 << i, 8 << i, SIZE_MAX, SMALL_CHAR); + do_test (0, 0, 8 << i, 2 << i, SIZE_MAX, SMALL_CHAR); + do_test (8 - i, 2 * i, 8 << i, 2 << i, SIZE_MAX, SMALL_CHAR); } for (i = 1; i < 8; ++i) @@ -297,6 +308,10 @@ test_main (void) do_test (i, 2 * i, 8 << i, 1, n, SMALL_CHAR); do_test (2 * i, i, 8 << i, 1, n, BIG_CHAR); do_test (i, i, 8 << i, 10, n, SMALL_CHAR); + + do_test (i, 2 * i, 8 << i, 1, SIZE_MAX, SMALL_CHAR); + do_test (2 * i, i, 8 << i, 1, SIZE_MAX, BIG_CHAR); + do_test (i, i, 8 << i, 10, SIZE_MAX, SMALL_CHAR); } } diff --git a/sysdeps/i386/i686/multiarch/strcat-sse2.S b/sysdeps/i386/i686/multiarch/strcat-sse2.S index 145ae66894..6359c7330c 100644 --- a/sysdeps/i386/i686/multiarch/strcat-sse2.S +++ b/sysdeps/i386/i686/multiarch/strcat-sse2.S @@ -227,6 +227,8 @@ L(StartStrcpyPart): pxor %xmm0, %xmm0 # ifdef USE_AS_STRNCAT add %ecx, %ebx + sbb %edx, %edx + or %edx, %ebx # endif sub %ecx, %eax jmp L(Unalign16Both) diff --git a/sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S b/sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S index c038043693..6a5ab7ab26 100644 --- a/sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S +++ b/sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S @@ -99,6 +99,8 @@ L(Unalign16Both): sub %rcx, %rdi # ifdef USE_AS_STRNCPY add %rcx, %r8 + sbb %rcx, %rcx + or %rcx, %r8 # endif mov $16, %rcx movdqa (%rsi, %rcx), %xmm1 |