PR #24898 opened by commodo URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24898 Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24898.patch
Frames can keep the m2m context alive after the codec is freed, so ff_v4l2_context_release() in v4l2_m2m_destroy_context() may log through a dangling s->avctx. Signed-off-by: Alexandru Ardelean <[email protected]> # Summary of changes Briefly describe what this PR does and why. <!-- If this PR requires new FATE test samples, attach them to the PR and list their target paths below (relative to the fate-suite root). Attached filenames must match the sample's filename: ```fate-samples # e.g. vorbis/new-sample.ogg ``` --> >From 1a8f5e4b96ee1ddea444c4e6a3bc4d48643a0fb6 Mon Sep 17 00:00:00 2001 From: Alexandru Ardelean <[email protected]> Date: Tue, 6 Oct 2026 15:31:16 +0300 Subject: [PATCH] avcodec/v4l2_m2m: do not log through a freed AVCodecContext Frames can keep the m2m context alive after the codec is freed, so ff_v4l2_context_release() in v4l2_m2m_destroy_context() may log through a dangling s->avctx. Signed-off-by: Alexandru Ardelean <[email protected]> --- libavcodec/v4l2_m2m.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/v4l2_m2m.c b/libavcodec/v4l2_m2m.c index 07c7500000..7a6ef3a54a 100644 --- a/libavcodec/v4l2_m2m.c +++ b/libavcodec/v4l2_m2m.c @@ -281,6 +281,8 @@ av_cold int ff_v4l2_m2m_codec_end(V4L2m2mPriv *priv) ff_v4l2_context_release(&s->output); + s->avctx = NULL; + s->self_ref = NULL; av_refstruct_unref(&priv->context); -- 2.52.0 _______________________________________________ ffmpeg-devel mailing list -- [email protected] To unsubscribe send an email to [email protected]
