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authorwm4 <nfxjfg@googlemail.com>2015-02-03 19:04:11 +0100
committerMichael Niedermayer <michaelni@gmx.at>2015-02-04 00:55:47 +0100
commitb737a2c52857b214be246ff615c6293730033cfa (patch)
treefbad3ce339ab99683740eae940a3833696a79812
parent56cc024220886927350cfc26ee695062ca7ecaf4 (diff)
downloadffmpeg-b737a2c52857b214be246ff615c6293730033cfa.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>
-rw-r--r--libavformat/mpc8.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/mpc8.c b/libavformat/mpc8.c
index 722d0ee05f..6524c7e489 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)