If the start offset points past the last_byte (outside the region read) stop reading PTTs and adjust nr_of_srpts.
Fixes Transformers 3 -- John GnuPG fingerprint: D0EC B3DB C372 D1F1 0B01 83F0 49F1 D7B2 60D4 D0F7
Index: libdvdread/src/ifo_read.c
===================================================================
--- libdvdread/src/ifo_read.c (revision 1243)
+++ libdvdread/src/ifo_read.c (working copy)
@@ -1190,7 +1190,15 @@
goto fail;
}
for(i = 0; i < vts_ptt_srpt->nr_of_srpts; i++) {
- B2N_32(data[i]);
+ /* Transformers 3 has PTT start bytes that point outside the SRPT PTT */
+ uint32_t start = data[i];
+ B2N_32(start);
+ if(start + sizeof(ptt_info_t) > vts_ptt_srpt->last_byte + 1) {
+ /* don't mess with any bytes beyond the end of the allocation */
+ vts_ptt_srpt->nr_of_srpts = i;
+ break;
+ }
+ data[i] = start;
/* assert(data[i] + sizeof(ptt_info_t) <= vts_ptt_srpt->last_byte + 1);
Magic Knight Rayearth Daybreak is mastered very strange and has
Titles with 0 PTTs. They all have a data[i] offsets beyond the end of
signature.asc
Description: OpenPGP digital signature
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