avcodec: fix aac/ac3 parser bitstream buffer size
authorMichael Niedermayer <michaelni@gmx.at>
Thu, 21 Aug 2014 23:15:57 +0000 (01:15 +0200)
committerMichael Niedermayer <michaelni@gmx.at>
Thu, 12 Mar 2015 00:31:57 +0000 (01:31 +0100)
commit7248e735599bad765e1ef39c3ea9a6d469d74049
treee0ec02ca7649df56db80f0f2d2fc0c466889d180
parent509239066ad0359ec4183ff49884e010d471f852
avcodec: fix aac/ac3 parser bitstream buffer size

Buffers containing copies of the AAC and AC3 header bits were not padded
before parsing, violating init_get_bits() buffer padding requirement,
leading to potential buffer read overflows.
This change adds FF_INPUT_BUFFER_PADDING_SIZE bytes to the bit buffer
for parsing the header in each of aac_parser.c and ac3_parser.c.

Based on patch by: Matt Wolenetz <wolenetz@chromium.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit fccd85b9f30525f88692f53134eba41f1f2d90db)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libavcodec/aac_parser.c
libavcodec/ac3_parser.c