1. ffmpeg
  2. Commit db041fd115eeb3c7209bbb2b6e676bc061f6b09b
Browse code

qpeg: Fix out of array writes.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Michael Niedermayer authored on 2012/03/03 11:37:52
Showing 1 changed files
libavcodec/qpeg.c
History View file @ db041fd
... ... 
@@ -203,6 +203,8 @@ static void qpeg_decode_inter(const uint8_t *src, uint8_t *dst, int size,
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                     filled = 0;
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                     dst -= stride;
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                     height--;
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+                    if(height < 0)
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+                        break;
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                 }
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             }
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         } else if(code >= 0xC0) { /* copy code: 0xC0..0xDF */
... ... 
@@ -214,6 +216,8 @@ static void qpeg_decode_inter(const uint8_t *src, uint8_t *dst, int size,
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                     filled = 0;
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                     dst -= stride;
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                     height--;
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+                    if(height < 0)
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+                        break;
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                 }
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             }
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             size -= code + 1;