SEGV signal found when running aubiomfcc

[fCorleone]

I was running aubiomfcc with a wav file as an input and I got a crash . The address sanitizer reported as:

=================================================================
==12014==ERROR: AddressSanitizer: SEGV on unknown address 0x000000003a50 (pc 0x7f51b0a74d44 bp 0x00000000003e sp 0x7fff2e4b6290 T0)

    #0 0x7f51b0a74d43 in swr_is_initialized (/usr/lib/x86_64-linux-gnu/libswresample-ffmpeg.so.1+0xdd43)
    #1 0x7f51b0a74da7 in swr_convert (/usr/lib/x86_64-linux-gnu/libswresample-ffmpeg.so.1+0xdda7)
    #2 0x7f51b344871b in aubio_source_avcodec_readframe ../src/io/source_avcodec.c:439
    #3 0x7f51b344934b in aubio_source_avcodec_do ../src/io/source_avcodec.c:476
    #4 0x405799 in examples_common_process ../examples/utils.c:168
    #5 0x404bde in main ../examples/aubiomfcc.c:71
    #6 0x7f51b307b82f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
    #7 0x401668 in _start (/home/mfc_fuzz/aubio/build/dist/usr/local/bin/aubiomfcc+0x401668)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV ??:0 swr_is_initialized
==12014==ABORTING

The input file I give to the program is displayed at: https://github.com/fCorleone/fuzz_programs/blob/master/aubio/testcase1
The command line is just ./aubiomfcc -i testcase1

[piem]

hi @fCorleone

great, thanks for the fuzz reports! i will look into them.

cheers, piem

[piem]

I believe this is a duplicate of the first test case in #137 (not #148, sorry for the noise), which is fixed with the above patch.

cheers, piem

[piem]

The patch is at a81b12a in branch fix/avr_context.