From d889ae33962e4ad2b24175418fe89d72ce712179 Mon Sep 17 00:00:00 2001 From: James Almer Date: Sun, 22 Sep 2019 23:55:49 -0300 Subject: [PATCH] avcodec/bsf: check that AVBSFInternal was allocated before dereferencing it This can happen when av_bsf_free() is called on av_bsf_alloc() failure. Reviewed-by: Paul B Mahol Signed-off-by: James Almer --- libavcodec/bsf.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavcodec/bsf.c b/libavcodec/bsf.c index 71915dea85..c1653cddb0 100644 --- a/libavcodec/bsf.c +++ b/libavcodec/bsf.c @@ -47,7 +47,8 @@ void av_bsf_free(AVBSFContext **pctx) av_opt_free(ctx); - av_packet_free(&ctx->internal->buffer_pkt); + if (ctx->internal) + av_packet_free(&ctx->internal->buffer_pkt); av_freep(&ctx->internal); av_freep(&ctx->priv_data);