From f38f791a23a8acade7ea6554c80455dce7543dbd Mon Sep 17 00:00:00 2001 From: Andreas Rheinhardt Date: Tue, 1 Dec 2020 14:24:10 +0100 Subject: avcodec/ass_split: Don't presume strlen to be >= 2 Fixes potential heap-buffer-overflow. Signed-off-by: Andreas Rheinhardt --- libavcodec/ass_split.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'libavcodec/ass_split.c') diff --git a/libavcodec/ass_split.c b/libavcodec/ass_split.c index c2c388d9f0..189272bbd9 100644 --- a/libavcodec/ass_split.c +++ b/libavcodec/ass_split.c @@ -376,7 +376,7 @@ ASSSplitContext *ff_ass_split(const char *buf) ASSSplitContext *ctx = av_mallocz(sizeof(*ctx)); if (!ctx) return NULL; - if (buf && !memcmp(buf, "\xef\xbb\xbf", 3)) // Skip UTF-8 BOM header + if (buf && !strncmp(buf, "\xef\xbb\xbf", 3)) // Skip UTF-8 BOM header buf += 3; ctx->current_section = -1; if (ass_split(ctx, buf) < 0) { -- cgit v1.2.3