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| author | wm4 <nfxjfg@googlemail.com> | 2015-02-03 19:04:11 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2015-06-10 02:13:08 +0200 |
| commit | 76d18b6e095bac40b72bf79e880058efcb2aa0e4 (patch) | |
| tree | 34e886d26a57a4435ce8e21544bb2573ecdfb824 | |
| parent | 2e6b1915cb32af835129f78856cb7e7b382338db (diff) | |
| download | ffmpeg-76d18b6e095bac40b72bf79e880058efcb2aa0e4.tar.gz | |
avformat/mpc8: fix broken pointer math
This could overflow and crash at least on 32 bit systems.
Reviewed-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b737a2c52857b214be246ff615c6293730033cfa)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavformat/mpc8.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/mpc8.c b/libavformat/mpc8.c index c7881384d2..6aa68fcaa9 100644 --- a/libavformat/mpc8.c +++ b/libavformat/mpc8.c @@ -91,7 +91,7 @@ static int mpc8_probe(AVProbeData *p) size = bs_get_v(&bs); if (size < 2) return 0; - if (bs + size - 2 >= bs_end) + if (size >= bs_end - bs + 2) return AVPROBE_SCORE_EXTENSION - 1; // seems to be valid MPC but no header yet if (header_found) { if (size < 11 || size > 28) |