35 lines
1.3 KiB
Diff
35 lines
1.3 KiB
Diff
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From 11b722e4ae91b611f605221587ec8e0829c27949 Mon Sep 17 00:00:00 2001
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From: Matheus Castanho <msc@linux.ibm.com>
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Date: Tue, 23 Jun 2020 10:26:19 -0300
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Subject: [PATCH] Fix invalid memory access on ppc and ppc64
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---
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contrib/power/adler32_power8.c | 9 ++++-----
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1 file changed, 4 insertions(+), 5 deletions(-)
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diff --git a/contrib/power/adler32_power8.c b/contrib/power/adler32_power8.c
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index 473c39457..fdd086453 100644
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--- a/contrib/power/adler32_power8.c
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+++ b/contrib/power/adler32_power8.c
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@@ -110,16 +110,15 @@ uLong ZLIB_INTERNAL _adler32_power8 (uLong adler, const Bytef* buf, uInt len)
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6, 5, 4, 3, 2, 1};
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const vector unsigned char vsh = vec_splat_u8(4);
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const vector unsigned int vmask = {0xffffffff, 0x0, 0x0, 0x0};
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- vector unsigned int vs1 = vec_xl(0, &s1);
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- vector unsigned int vs2 = vec_xl(0, &s2);
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+ vector unsigned int vs1 = { 0 };
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+ vector unsigned int vs2 = { 0 };
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vector unsigned int vs1_save = { 0 };
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vector unsigned int vsum1, vsum2;
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vector unsigned char vbuf;
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int n;
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- /* Zeros the undefined values of vectors vs1, vs2. */
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- vs1 = vec_and(vs1, vmask);
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- vs2 = vec_and(vs2, vmask);
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+ vs1[0] = s1;
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+ vs2[0] = s2;
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/* Do length bigger than NMAX in blocks of NMAX size. */
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while (len >= NMAX) {
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