wrapper/FFmpeg
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

avcodec/scpr3: Clear clr

Browse source 
clr is passing into decode_run_p() its not used when not set
but this possibly triggers msan (it doesnt locally)

Fixes?: use of uninintialized memory
Fixes?: 436997807/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SCPR_fuzzer-6253316466606080

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2025-08-08 23:19:03 +02:00
parent 9686fdd729
commit 3542260376
No known key found for this signature in database
GPG key ID: B18E8928B3948D64
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
libavcodec/scpr3.c
View file

@ -1167,7 +1167,7 @@ static int decompress_p3(AVCodecContext *avctx,
}
} else {
int run, bx = x * 16 + sx1, by = y * 16 + sy1;
uint32_t clr, ptype = 0, r, g, b;
uint32_t clr = 0, ptype = 0, r, g, b;
if (bx >= avctx->width)
return AVERROR_INVALIDDATA;