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commit 8d80b13cbe063d950c15de5c4bbfd29ca4045141 Author: Jun Zhao <[email protected]> AuthorDate: Mon Mar 9 08:41:56 2026 +0800 Commit: toots <[email protected]> CommitDate: Wed Mar 18 02:08:09 2026 +0000 doc/examples/remux: fix NULL pointer dereference in cleanup The cleanup path uses `ofmt->flags` to check AVFMT_NOFILE, but `ofmt` is only assigned after avformat_alloc_output_context2 succeeds. If a failure occurs between output context allocation and the `ofmt` assignment (e.g. stream_mapping allocation fails), ofmt_ctx is non-NULL while ofmt is still NULL, causing a crash. Use ofmt_ctx->oformat->flags instead, which is always valid when ofmt_ctx is non-NULL. Signed-off-by: Jun Zhao <[email protected]> --- doc/examples/remux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/doc/examples/remux.c b/doc/examples/remux.c index 1f002987c5..1a88f7efe6 100644 --- a/doc/examples/remux.c +++ b/doc/examples/remux.c @@ -184,7 +184,7 @@ end: avformat_close_input(&ifmt_ctx); /* close output */ - if (ofmt_ctx && !(ofmt->flags & AVFMT_NOFILE)) + if (ofmt_ctx && !(ofmt_ctx->oformat->flags & AVFMT_NOFILE)) avio_closep(&ofmt_ctx->pb); avformat_free_context(ofmt_ctx); _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
