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Git pushed a commit to branch release/4.4
in repository ffmpeg.

commit d2c944970b31f817e6c1fc534939e2bcfd2b2021
Author:     Michael Niedermayer <[email protected]>
AuthorDate: Fri Jan 23 15:48:15 2026 +0100
Commit:     Michael Niedermayer <[email protected]>
CommitDate: Tue May 5 18:54:58 2026 +0200

    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 <[email protected]>
    (cherry picked from commit 5975149603ba44f6b25ad9b64a859c5f0663c515)
    Signed-off-by: Michael Niedermayer <[email protected]>
---
 libavformat/mpegts.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index 4771f5270a..fa0b608e61 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -2349,7 +2349,7 @@ 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 + 2;
-        if (tag == IOD_DESCRIPTOR) {
+        if (tag == IOD_DESCRIPTOR && len >= 2) {
             get8(&p, p_end); // scope
             get8(&p, p_end); // label
             len -= 2;

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