[FFmpeg-cvslog] avcodec/dovi_rpu: Use 64 bit in get_us/se_coeff()

[Michael Niedermayer]

ffmpeg | branch: release/5.1 | Michael Niedermayer <michael at niedermayer.cc> | Fri Oct 20 23:50:07 2023 +0200| [26a4846b28e4d81610b3c831f4317cbc0b422078] | 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>
(cherry picked from commit 2817efbba331ac1d3a39fbee78b480008ce20a93)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=26a4846b28e4d81610b3c831f4317cbc0b422078
---

 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 dd38936552..107d1ab441 100644
--- a/libavcodec/dovi_rpu.c
+++ b/libavcodec/dovi_rpu.c
@@ -157,7 +157,7 @@ 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 */
@@ -176,7 +176,7 @@ 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 */