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The following commit(s) were added to refs/heads/master by this push:
new f435ce22e1 avcodec/h2645_sei: Initialize side data before deallocation
f435ce22e1 is described below
commit f435ce22e10e2c93fc8027cc72eeb09eba50ab8d
Author: Michael Niedermayer <[email protected]>
AuthorDate: Sun May 17 16:55:54 2026 +0200
Commit: michaelni <[email protected]>
CommitDate: Sun May 17 16:00:37 2026 +0000
avcodec/h2645_sei: Initialize side data before deallocation
Fixes: use after free
Fixes: poc_hvcc_modified.mp4
Found by: Jiale Yao
Signed-off-by: Michael Niedermayer <[email protected]>
---
libavcodec/h2645_sei.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/libavcodec/h2645_sei.c b/libavcodec/h2645_sei.c
index 638362fbf6..c9fb25b1da 100644
--- a/libavcodec/h2645_sei.c
+++ b/libavcodec/h2645_sei.c
@@ -629,15 +629,15 @@ static int h2645_sei_to_side_data(AVCodecContext *avctx,
H2645SEI *sei,
return AVERROR(ENOMEM);
}
+ dst_env->ambient_illuminance = av_make_q(env->ambient_illuminance,
10000);
+ dst_env->ambient_light_x = av_make_q(env->ambient_light_x,
50000);
+ dst_env->ambient_light_y = av_make_q(env->ambient_light_y,
50000);
+
ret = ff_frame_new_side_data_from_buf_ext(avctx, sd, nb_sd,
AV_FRAME_DATA_AMBIENT_VIEWING_ENVIRONMENT, &buf);
if (ret < 0)
return ret;
-
- dst_env->ambient_illuminance = av_make_q(env->ambient_illuminance,
10000);
- dst_env->ambient_light_x = av_make_q(env->ambient_light_x,
50000);
- dst_env->ambient_light_y = av_make_q(env->ambient_light_y,
50000);
}
if (sei->mastering_display.present) {
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