Package: lsdvd Version: 0.16-3 Severity: important When doing lsdvd on one of my DVDs, lsdvd segfaults.
guest@pxeinstall:~/src/lsdvd-0.16$ ./lsdvd /dev/dvd2 libdvdread: Using libdvdcss version 1.2.10 for DVD access Please send bug report - no VTS_TMAPT ?? Minnesegmentsfeil guest@pxeinstall:~/src/lsdvd-0.16$ This is the same DVD that causes a problem with python3-dvdvideo in <URL: http://bugs.debian.org/720831 >. I built lsdvd using 'DEB_BUILD_OPTIONS=nostrip debuild' and ran it under valgrind to figure out where it fail: guest@pxeinstall:~/src/lsdvd-0.16$ valgrind ./lsdvd /dev/dvd2 ==4927== Memcheck, a memory error detector ==4927== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al. ==4927== Using Valgrind-3.6.0.SVN-Debian and LibVEX; rerun with -h for copyright info ==4927== Command: ./lsdvd /dev/dvd2 ==4927== libdvdread: Using libdvdcss version 1.2.10 for DVD access ==4927== Warning: noted but unhandled ioctl 0x5390 with no size/direction hints ==4927== This could cause spurious value errors to appear. ==4927== See README_MISSING_SYSCALL_OR_IOCTL for guidance on writing a proper wrapper. ==4927== Warning: noted but unhandled ioctl 0x5392 with no size/direction hints ==4927== This could cause spurious value errors to appear. ==4927== See README_MISSING_SYSCALL_OR_IOCTL for guidance on writing a proper wrapper. ==4927== Warning: noted but unhandled ioctl 0x5392 with no size/direction hints ==4927== This could cause spurious value errors to appear. ==4927== See README_MISSING_SYSCALL_OR_IOCTL for guidance on writing a proper wrapper. Please send bug report - no VTS_TMAPT ?? ==4927== Invalid read of size 2 ==4927== at 0x4016B6: main (lsdvd.c:291) ==4927== Address 0x0 is not stack'd, malloc'd or (recently) free'd ==4927== ==4927== ==4927== Process terminating with default action of signal 11 (SIGSEGV) ==4927== Access not within mapped region at address 0x0 ==4927== at 0x4016B6: main (lsdvd.c:291) ==4927== If you believe this happened as a result of a stack ==4927== overflow in your program's main thread (unlikely but ==4927== possible), you can try to increase the size of the ==4927== main thread stack using the --main-stacksize= flag. ==4927== The main thread stack size used in this run was 8388608. ==4927== ==4927== HEAP SUMMARY: ==4927== in use at exit: 25,307 bytes in 61 blocks ==4927== total heap usage: 253 allocs, 192 frees, 306,530 bytes allocated ==4927== ==4927== LEAK SUMMARY: ==4927== definitely lost: 1,913 bytes in 20 blocks ==4927== indirectly lost: 2,966 bytes in 26 blocks ==4927== possibly lost: 0 bytes in 0 blocks ==4927== still reachable: 20,428 bytes in 15 blocks ==4927== suppressed: 0 bytes in 0 blocks ==4927== Rerun with --leak-check=full to see details of leaked memory ==4927== ==4927== For counts of detected and suppressed errors, rerun with: -v ==4927== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 4 from 4) Minnesegmentsfeil guest@pxeinstall:~/src/lsdvd-0.16$ This is the information I could get from gdb: (gdb) run /dev/dvd2 Starting program: /home/guest/src/lsdvd-0.16/lsdvd /dev/dvd2 libdvdread: Using libdvdcss version 1.2.10 for DVD access Please send bug report - no VTS_TMAPT ?? Program received signal SIGSEGV, Segmentation fault. 0x00000000004016b6 in main (argc=2, argv=<value optimized out>) at lsdvd.c:291 291 ifo = (ifo_handle_t **)malloc((ifo_zero->vts_atrt->nr_of_vtss + 1) * sizeof(ifo_handle_t *)); (gdb) p ifo_zero $1 = <value optimized out> (gdb) p ifo_zero->vts_atrt Cannot access memory at address 0x28 (gdb) p ifo_zero->vts_atrt->nr_of_vtss Cannot access memory at address 0x28 (gdb) -- Happy hacking Petter Reinholdtsen -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
