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new bb424927db avformat/sierravmd: fix header read error check
bb424927db is described below
commit bb424927dbda787d2c7586bdf0b35ca2113247f5
Author: Ruikai Peng <[email protected]>
AuthorDate: Thu Dec 11 06:27:48 2025 +0000
Commit: James Almer <[email protected]>
CommitDate: Thu Dec 11 16:26:17 2025 +0000
avformat/sierravmd: fix header read error check
The header read check stored the comparison result into ret, so read
failures became ret=1 and were treated as success, leaving the VMD header
uninitialized and letting parsing continue with bogus state.
Regression since: ee623a43e3.
Found-by: Pwno
---
libavformat/sierravmd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/sierravmd.c b/libavformat/sierravmd.c
index bb1d1c5df7..2519756533 100644
--- a/libavformat/sierravmd.c
+++ b/libavformat/sierravmd.c
@@ -103,7 +103,7 @@ static int vmd_read_header(AVFormatContext *s)
/* fetch the main header, including the 2 header length bytes */
avio_seek(pb, 0, SEEK_SET);
- if ((ret = ffio_read_size(pb, vmd->vmd_header, VMD_HEADER_SIZE) < 0))
+ if ((ret = ffio_read_size(pb, vmd->vmd_header, VMD_HEADER_SIZE)) < 0)
return ret;
width = AV_RL16(&vmd->vmd_header[12]);
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