avcodec/pngdec: Check bits per pixel before setting monoblack pixel format
authorMichael Niedermayer <michaelni@gmx.at>
Fri, 3 Oct 2014 15:35:58 +0000 (17:35 +0200)
committerMichael Niedermayer <michaelni@gmx.at>
Fri, 3 Oct 2014 16:29:11 +0000 (18:29 +0200)
commit433e15bb873f7ba54d8895de7e74c43205551084
treeea31fa3ffe8e48c95d5e0d38bde42ffaa7a0fb55
parentc3af801c63024c2fcd7a5fbb571b6f8a9c9790dc
avcodec/pngdec: Check bits per pixel before setting monoblack pixel format

Fixes out of array accesses
Fixes: asan_heap-oob_14dbfcf_4_asan_heap-oob_1ce5767_179_add_method_small.png

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3e2b745020c2dbf0201fe7df3dad9e7e0b2e1bb6)

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