From 67947f2a1cbfe6ee83dfaf2a068b041d06802320 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 17 Aug 2024 01:15:04 +0200 Subject: [PATCH] avcodec/hevc/ps: use unsigned shift Fixes: left shift of 1 by 31 places cannot be represented in type 'int' Fixes: 70726/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-6149928703819776 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- 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 80ac35a7db..22042d3e62 100644 --- a/libavcodec/hevc/ps.c +++ b/libavcodec/hevc/ps.c @@ -1101,7 +1101,7 @@ int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id, sps->used_by_curr_pic_lt = 0; for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) { sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb); - sps->used_by_curr_pic_lt |= get_bits1(gb) * (1 << i); + sps->used_by_curr_pic_lt |= get_bits1(gb) << i; } }