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Holger Hans Peter Freyther holger at freyther.deDear Andreas, Harald,
I don't really know much about the bit order of TRAU frames but
the trau_test.c is causing an out of bounds access to the gsm_fr_map.
Re-produce (GCC >= 3.8 or clang >= 3.2 required):
$ make clean && make CFLAGS+="-ggdb3 -Og -fsanitize=address"
$ cd tests/trau
$ ./trau_test
Issue:
Breakpoint 1, 0xb69e7810 in __asan_report_error () from /usr/lib/i386-linux-gnu/libasan.so.0
(gdb) bt
#0 0xb69e7810 in __asan_report_error () from /usr/lib/i386-linux-gnu/libasan.so.0
#1 0xb69e08cf in __asan_report_load1 () from /usr/lib/i386-linux-gnu/libasan.so.0
#2 0x0804c4e7 in trau_encode_fr (tf=tf at entry=0xbffff530,
data=data at entry=0xbffff700 <incomplete sequence \320>) at trau_mux.c:441
#3 0x08048e06 in test_trau_fr_efr (data=<optimized out>,
data at entry=0xbffff700 <incomplete sequence \320>) at trau_test.c:35
#4 0x080494bf in main () at trau_test.c:70
(gdb) frame2
Undefined command: "frame2". Try "help".
(gdb) frame 2
#2 0x0804c4e7 in trau_encode_fr (tf=tf at entry=0xbffff530,
data=data at entry=0xbffff700 <incomplete sequence \320>) at trau_mux.c:441
441 k = gsm_fr_map[++l]-1;
(gdb) p l
$1 = 76
(gdb) p l
$2 = 76
(gdb) p sizeof(gsm_fr_map)
$3 = 76
Please fix as soon as possible as I would like to enable ASAN checking on
the jenkins as soon as possible.
kind regards
holger