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Invalid memory address dereference in hf_assembly (in libfaad/sbr_hfadj.c:1536) #30

fantasy7082 opened this Issue Dec 17, 2018 · 0 comments


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fantasy7082 commented Dec 17, 2018

Hi, i found a issue in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. It crashed in function hf_assembly .the details are below(ASAN):

./faad faad_res/009-invalid-def-sbr_hfadj_1536 -o out.wav
 *********** Ahead Software MPEG-4 AAC Decoder V2.8.8 ******************

 Build: Dec 13 2018
 Copyright 2002-2004: Ahead Software AG
 bug tracking:
 Floating point version

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License.


faad_res/009-invalid-def-sbr_hfadj_1536 file info:
ADTS, 0.299 sec, 42 kbps, 48000 Hz

 | Config:  2 Ch       |
 | Ch |    Position    |
 | 00 | Left front     |
 | 01 | Right front    |

==7089==ERROR: AddressSanitizer: SEGV on unknown address 0x0000000030da (pc 0x7f2a44f66a79 bp 0x7ffc06965b70 sp 0x7ffc06965ab0 T0)
    #0 0x7f2a44f66a78 in hf_assembly /root/faad2_asan/libfaad/sbr_hfadj.c:1536
    #1 0x7f2a44f633b6 in hf_adjustment /root/faad2_asan/libfaad/sbr_hfadj.c:90
    #2 0x7f2a44f81725 in sbr_process_channel /root/faad2_asan/libfaad/sbr_dec.c:363
    #3 0x7f2a44f837fa in sbrDecodeSingleFramePS /root/faad2_asan/libfaad/sbr_dec.c:637
    #4 0x7f2a44f2bb54 in reconstruct_single_channel /root/faad2_asan/libfaad/specrec.c:1071
    #5 0x7f2a44f33e28 in single_lfe_channel_element /root/faad2_asan/libfaad/syntax.c:631
    #6 0x7f2a44f32354 in decode_sce_lfe /root/faad2_asan/libfaad/syntax.c:351
    #7 0x7f2a44f332da in raw_data_block /root/faad2_asan/libfaad/syntax.c:441
    #8 0x7f2a44eed9c3 in aac_frame_decode /root/faad2_asan/libfaad/decoder.c:990
    #9 0x7f2a44eed566 in NeAACDecDecode /root/faad2_asan/libfaad/decoder.c:821
    #10 0x40f8ae in decodeAACfile /root/faad2_asan/frontend/main.c:679
    #11 0x411dd4 in faad_main /root/faad2_asan/frontend/main.c:1323
    #12 0x411fe5 in main /root/faad2_asan/frontend/main.c:1366
    #13 0x7f2a44b2582f in __libc_start_main (/lib/x86_64-linux-gnu/
    #14 0x401aa8 in _start (/usr/local/faad-asan/bin/faad+0x401aa8)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /root/faad2_asan/libfaad/sbr_hfadj.c:1536 hf_assembly


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