xxan: fix invalid memory access in xan_decode_frame_type0()
authorAnton Khirnov <anton@khirnov.net>
Wed, 6 Mar 2013 08:06:16 +0000 (09:06 +0100)
committerReinhard Tartler <siretart@tauware.de>
Sat, 9 Mar 2013 17:54:28 +0000 (18:54 +0100)
commite10af023b2579791d4de7a16d4958229dc62be03
tree7ea2e397567f77ddad0bd2bd012634337100c212
parentb527dd30e9461b57dff17afe6c8738c3f20d2cb7
xxan: fix invalid memory access in xan_decode_frame_type0()

The loop a few lines below the xan_unpack() call accesses up to
dec_size * 2 bytes into y_buffer, so dec_size must be limited to
buffer_size / 2.

CC:libav-stable@libav.org
(cherry picked from commit 8a49d2bcbe7573bb4b765728b2578fac0d19763f)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit 62a657de168cf501acb23d48cc1aa00793dc83f3)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
libavcodec/xxan.c