diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2013-08-30 23:14:32 +0200 |
|---|---|---|
| committer | Carl Eugen Hoyos <cehoyos@ag.or.at> | 2013-08-30 23:40:31 +0200 |
| commit | 5bd2b24db399d9821a0396f96dc8e2392d80abe1 (patch) | |
| tree | e2a387f5595f43ad75fb7aa2173f6889ce9e2d23 | |
| parent | f229c598939c34df75db7845495f077b49e233d4 (diff) | |
| download | ffmpeg-5bd2b24db399d9821a0396f96dc8e2392d80abe1.tar.gz | |
avcodec/pngdsp: fix (un)signed type in end comparission
Fixes out of array accesses
Fixes Ticket2919
Found_by: ami_stuff
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 86736f59d6a527d8bc807d09b93f971c0fe0bb07)
| -rw-r--r-- | libavcodec/pngdsp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/pngdsp.c b/libavcodec/pngdsp.c index 75ec996ca1..eb8c6b23eb 100644 --- a/libavcodec/pngdsp.c +++ b/libavcodec/pngdsp.c @@ -30,7 +30,7 @@ static void add_bytes_l2_c(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w) { long i; - for (i = 0; i <= w - sizeof(long); i += sizeof(long)) { + for (i = 0; i <= w - (int)sizeof(long); i += sizeof(long)) { long a = *(long *)(src1 + i); long b = *(long *)(src2 + i); *(long *)(dst + i) = ((a & pb_7f) + (b & pb_7f)) ^ ((a ^ b) & pb_80); |