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lzw: fix potential integer overflow.

This commit is contained in:
Ronald S. Bultje 2012-03-28 20:00:38 -07:00
parent b7b1509d06
commit 0399fe0fd2
1 changed files with 1 additions and 1 deletions
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2
libavcodec/lzw.c
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@ -102,7 +102,7 @@ void ff_lzw_decode_tail(LZWState *p)
if(s->mode == FF_LZW_GIF) {
while (s->bs > 0) {
if (s->pbuf + s->bs >= s->ebuf) {
if (s->bs >= s->ebuf - s->pbuf) {
s->pbuf = s->ebuf;
break;
} else {