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Fix a signed shift overflow in vpx_rb_read_inv_signed_literal.

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Found with clang -fsanitize=integer

Change-Id: I17cb2166c06ff463abfaf9b0e6bc749d0d6fdf94
This commit is contained in:
Alex Converse 2015-11-19 15:04:20 -08:00
parent b1fcd1751e
commit 42b7c44b2f
1 changed files with 1 additions and 1 deletions
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2
vpx_dsp/bitreader_buffer.c
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@ -45,7 +45,7 @@ int vpx_rb_read_inv_signed_literal(struct vpx_read_bit_buffer *rb,
int bits) {
#if CONFIG_MISC_FIXES
const int nbits = sizeof(unsigned) * 8 - bits - 1;
const unsigned value = vpx_rb_read_literal(rb, bits + 1) << nbits;
const unsigned value = (unsigned)vpx_rb_read_literal(rb, bits + 1) << nbits;
return ((int) value) >> nbits;
#else
return vpx_rb_read_signed_literal(rb, bits);