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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-08-30 23:14:32 +0200 |
|---|---|---|
| committer | Carl Eugen Hoyos <cehoyos@ag.or.at> | 2013-08-30 23:35:47 +0200 |
| commit | a4522ae516b58175c447b65cb44536db08f82552 (patch) | |
| tree | 45b5a5cda10bcd51a70130c6038ef69e6b00bbbb | |
| parent | c7ee4bc016e56abb69fa728e124294e786fb7c01 (diff) | |
| download | ffmpeg-a4522ae516b58175c447b65cb44536db08f82552.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 0d247759cc..5ab1c351b2 100644 --- a/libavcodec/pngdsp.c +++ b/libavcodec/pngdsp.c @@ -31,7 +31,7 @@ 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); |