From e561676c55aa9d3745b5e30b41693a179cbee8d2 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 28 May 2017 21:54:02 +0200 Subject: [PATCH] avcodec/truemotion2: Fix runtime error: left shift of 1 by 31 places cannot be represented in type 'int' Fixes part of: 1888/clusterfuzz-testcase-minimized-5237704826552320 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer (cherry picked from commit c9e884f3d98df85bf7f2cf30d71877b22929fdcb) Signed-off-by: Michael Niedermayer --- libavcodec/truemotion2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/truemotion2.c b/libavcodec/truemotion2.c index 245a32a8d7..4f0e52dbf7 100644 --- a/libavcodec/truemotion2.c +++ b/libavcodec/truemotion2.c @@ -272,7 +272,7 @@ static int tm2_read_deltas(TM2Context *ctx, int stream_id) for (i = 0; i < d; i++) { v = get_bits_long(&ctx->gb, mb); if (v & (1 << (mb - 1))) - ctx->deltas[stream_id][i] = v - (1 << mb); + ctx->deltas[stream_id][i] = v - (1U << mb); else ctx->deltas[stream_id][i] = v; }