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libavcodec/ppc/mpegvideoencdsp.c: fix stack smashing in pix_norm1_altivec() and pix_sum_altivec()
The vec_ste calls were mistakenly changed to vec_vsx_st inc5ca76a
, which caused stack smashing. Changing them back fixes crashes on ppc64el, when configured with --toolchain=hardened. Signed-off-by: Michael Niedermayer <michaelni@gmx.at> (cherry picked from commit840c3c0531
) Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -55,7 +55,7 @@ static int pix_norm1_altivec(uint8_t *pix, int line_size)
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/* Sum up the four partial sums, and put the result into s. */
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sum = vec_sums((vector signed int) sv, (vector signed int) zero);
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sum = vec_splat(sum, 3);
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vec_vsx_st(sum, 0, &s);
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vec_ste(sum, 0, &s);
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return s;
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}
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#else
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@ -113,7 +113,7 @@ static int pix_sum_altivec(uint8_t *pix, int line_size)
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/* Sum up the four partial sums, and put the result into s. */
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sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero);
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sumdiffs = vec_splat(sumdiffs, 3);
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vec_vsx_st(sumdiffs, 0, &s);
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vec_ste(sumdiffs, 0, &s);
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return s;
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}
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#else
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