ffmpeg | branch: release/5.1 | Michael Niedermayer <mich...@niedermayer.cc> | Thu May 16 21:16:00 2024 +0200| [4d9530afdfbd6cafa6b008262c5e6be89285b691] | committer: Michael Niedermayer
avcodec/scpr3: Check add_dec() for failure Fixes: CID1441459 Improper use of negative value Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit d741638042d827aed994b819857d6587121627ab) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4d9530afdfbd6cafa6b008262c5e6be89285b691 --- libavcodec/scpr3.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/libavcodec/scpr3.c b/libavcodec/scpr3.c index 274f99ce71..85524feafe 100644 --- a/libavcodec/scpr3.c +++ b/libavcodec/scpr3.c @@ -466,6 +466,8 @@ static int decode_adaptive6(PixelModel3 *m, uint32_t code, uint32_t *value, return 0; grow_dec(m); c = add_dec(m, q, g, f); + if (c < 0) + return AVERROR_INVALIDDATA; } incr_cntdec(m, c); @@ -869,11 +871,11 @@ static int decode_unit3(SCPRContext *s, PixelModel3 *m, uint32_t code, uint32_t sync_code3(gb, rc); break; case 6: - if (!decode_adaptive6(m, code, value, &a, &b)) { + ret = decode_adaptive6(m, code, value, &a, &b); + if (!ret) ret = update_model6_to_7(m); - if (ret < 0) - return AVERROR_INVALIDDATA; - } + if (ret < 0) + return ret; decode3(gb, rc, a, b); sync_code3(gb, rc); break; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
