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avcodec/bmp_parser: Ensure remaining_size is not too small in startcode packet crossing corner case

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Fixes Ticket 5438

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8e26bdd59bf559d00c7e60c53fff292de10139ff)

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-04-14 15:10:31 +02:00
parent 6a60de92b2
commit 036d049fb1
1 changed files with 1 additions and 1 deletions

2
libavcodec/bmp_parser.c

@ -63,7 +63,7 @@ restart:
continue; continue;
} }
bpc->pc.frame_start_found++; bpc->pc.frame_start_found++;
bpc->remaining_size = bpc->fsize + i - 17; bpc->remaining_size = bpc->fsize + FFMAX(i - 17, 0);
if (bpc->pc.index + i > 17) { if (bpc->pc.index + i > 17) {
next = i - 17; next = i - 17;