[FFmpeg-devel] [PATCH 2/4] avcodec/hevc_ps: Fix integer overflow with num_tile_rows

[Michael Niedermayer]

Fixes: signed integer overflow: -2147483648 - 1 cannot be represented in type 'int'
Fixes: 14880/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5130977304641536

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavcodec/hevc_ps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/hevc_ps.c b/libavcodec/hevc_ps.c
index 80df417e4f..0ed6682bb4 100644
--- a/libavcodec/hevc_ps.c
+++ b/libavcodec/hevc_ps.c
@@ -1596,7 +1596,7 @@ int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx,
         if (pps->num_tile_rows <= 0 ||
             pps->num_tile_rows >= sps->height) {
             av_log(avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
-                   pps->num_tile_rows - 1);
+                   pps->num_tile_rows - 1U);
             ret = AVERROR_INVALIDDATA;
             goto err;
         }
-- 
2.21.0