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new febc82690d avcodec/alsdec: propagate read_diff_float_data() errors in
read_frame_data()
febc82690d is described below
commit febc82690da3e054cf93b32203a2e19d3d1a935c
Author: Priyanshu Thapliyal <[email protected]>
AuthorDate: Wed Mar 25 13:36:07 2026 +0530
Commit: michaelni <[email protected]>
CommitDate: Sat Mar 28 11:53:38 2026 +0000
avcodec/alsdec: propagate read_diff_float_data() errors in read_frame_data()
The return value of read_diff_float_data() was previously ignored,
allowing decode to continue silently with partially transformed samples
on malformed floating ALS input. Check and propagate the error.
All failure paths in read_diff_float_data() already return
AVERROR_INVALIDDATA, so the caller fix is sufficient without
any normalization inside the function.
Signed-off-by: Priyanshu Thapliyal <[email protected]>
---
libavcodec/alsdec.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/libavcodec/alsdec.c b/libavcodec/alsdec.c
index 242080a96d..a156c90390 100644
--- a/libavcodec/alsdec.c
+++ b/libavcodec/alsdec.c
@@ -1794,7 +1794,9 @@ static int read_frame_data(ALSDecContext *ctx, unsigned
int ra_frame)
}
if (sconf->floating) {
- read_diff_float_data(ctx, ra_frame);
+ ret = read_diff_float_data(ctx, ra_frame);
+ if (ret < 0)
+ return ret;
}
if (get_bits_left(gb) < 0) {
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