avformat/mpegts: Reset local nb_prg on add_program() failure

add_program() will deallocate the whole array on failure so we must clear nb_prgs Fixes: null pointer dereference Fixes: crash-35a3b39ddcc5babeeb005b7399a3a1217c8781bc Found-by: Catena cyber Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2026-06-16 04:32:47 +02:00 · 2024-02-27 02:07:28 +01:00
parent c0532f5579
commit cb9752d897
1 changed files with 2 additions and 1 deletions
@@ -2603,7 +2603,8 @@ static void pat_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
                    FFSWAP(struct Program, ts->prg[nb_prg], ts->prg[prg_idx]);
                if (prg_idx >= nb_prg)
                    nb_prg++;
-            }
+            } else
+                nb_prg = 0;
        }
    }
    ts->nb_prg = nb_prg;