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The following commit(s) were added to refs/heads/master by this push:
new cfaaf0062c avformat/webp_anim_dec: use ffio_read_size for ICCP and
EXIF chunks
cfaaf0062c is described below
commit cfaaf0062c085433ccb500689f137849794aeb63
Author: Umar Pathan <[email protected]>
AuthorDate: Wed Aug 12 00:19:30 2026 +0200
Commit: michaelni <[email protected]>
CommitDate: Wed Aug 12 00:23:01 2026 +0000
avformat/webp_anim_dec: use ffio_read_size for ICCP and EXIF chunks
Fixes: use of uninitialized memory
Signed-off-by: Michael Niedermayer <[email protected]>
---
libavformat/webp_anim_dec.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/libavformat/webp_anim_dec.c b/libavformat/webp_anim_dec.c
index badc36f936..14abb61db4 100644
--- a/libavformat/webp_anim_dec.c
+++ b/libavformat/webp_anim_dec.c
@@ -170,9 +170,11 @@ static int webp_anim_read_header(AVFormatContext *s)
AV_PKT_DATA_ICC_PROFILE, size, 0);
if (!sd)
return AVERROR(ENOMEM);
- ret = avio_read(pb, sd->data, size);
- if (ret < 0)
+ ret = ffio_read_size(pb, sd->data, size);
+ if (ret < 0) {
+ av_packet_side_data_remove(st->codecpar->coded_side_data,
&st->codecpar->nb_coded_side_data, AV_PKT_DATA_ICC_PROFILE);
return ret;
+ }
ctx->has_iccp = 1;
}
break;
@@ -299,9 +301,11 @@ static int webp_anim_read_packet(AVFormatContext *s,
AVPacket *pkt)
AV_PKT_DATA_EXIF, size, 0);
if (!sd)
return AVERROR(ENOMEM);
- ret = avio_read(pb, sd->data, size);
- if (ret < 0)
+ ret = ffio_read_size(pb, sd->data, size);
+ if (ret < 0) {
+ av_packet_side_data_remove(st->codecpar->coded_side_data,
&st->codecpar->nb_coded_side_data, AV_PKT_DATA_EXIF);
return ret;
+ }
ctx->has_exif = 1;
}
break;
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