From 04848bb2ff6ef9c72c187cea836d40ae70c8bbfd Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 23 Jan 2026 15:48:15 +0100 Subject: [PATCH] avformat/mpegts: Check IOD_DESCRIPTOR len Fixes: out of array read Fixes: VULN-7/poc.ts Found-by: Zhenpeng (Leo) Lin from depthfirst Signed-off-by: Michael Niedermayer (cherry picked from commit 5975149603ba44f6b25ad9b64a859c5f0663c515) Signed-off-by: Michael Niedermayer --- libavformat/mpegts.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c index 981dd8cf0d..6007605b87 100644 --- a/libavformat/mpegts.c +++ b/libavformat/mpegts.c @@ -2412,7 +2412,7 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len // something else is broken, exit the program_descriptors_loop break; program_info_length -= len; - if (tag == IOD_DESCRIPTOR) { + if (tag == IOD_DESCRIPTOR && len >= 2) { get8(&p, p_end); // scope get8(&p, p_end); // label len -= 2;