[FFmpeg-cvslog] avcodec/dovi_rpu: Use 64 bit in get_us/se_coeff()
Michael Niedermayer
git at videolan.org
Wed Nov 1 17:48:57 EET 2023
ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Fri Oct 20 23:50:07 2023 +0200| [2817efbba331ac1d3a39fbee78b480008ce20a93] | committer: Michael Niedermayer
avcodec/dovi_rpu: Use 64 bit in get_us/se_coeff()
Fixes: shift exponent 32 is too large for 32-bit type 'int'
Fixes: 63151/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5067531154751488
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2817efbba331ac1d3a39fbee78b480008ce20a93
---
libavcodec/dovi_rpu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/dovi_rpu.c b/libavcodec/dovi_rpu.c
index f6485256c4..a6b23f4dd1 100644
--- a/libavcodec/dovi_rpu.c
+++ b/libavcodec/dovi_rpu.c
@@ -149,7 +149,7 @@ static inline uint64_t get_ue_coef(GetBitContext *gb, const AVDOVIRpuDataHeader
case RPU_COEFF_FLOAT:
fpart.u32 = get_bits_long(gb, 32);
- return fpart.f32 * (1 << hdr->coef_log2_denom);
+ return fpart.f32 * (1LL << hdr->coef_log2_denom);
}
return 0; /* unreachable */
@@ -168,7 +168,7 @@ static inline int64_t get_se_coef(GetBitContext *gb, const AVDOVIRpuDataHeader *
case RPU_COEFF_FLOAT:
fpart.u32 = get_bits_long(gb, 32);
- return fpart.f32 * (1 << hdr->coef_log2_denom);
+ return fpart.f32 * (1LL << hdr->coef_log2_denom);
}
return 0; /* unreachable */
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