Closed
Description
System info
Ubuntu x86_64, clang 6.0, faad (latest master 1073ae)
Configure
CFLAGS="-g -fsanitize=address" LDFLAGS="-fsanitize=address" ./configure --enable-shared=no
Command line
./frontend/faad -w -b 5 @@
AddressSanitizer output
NULL 174.805 secs, 5 ch, 48000 Hz
=================================================================
==39716==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x621000008900 at pc 0x0000005e19ba bp 0x7ffc780ef510 sp 0x7ffc780ef508
WRITE of size 4 at 0x621000008900 thread T0
#0 0x5e19b9 in sbr_qmf_synthesis_64 /home/seviezhou/faad2/libfaad/sbr_qmf.c:614:27
#1 0x59aeae in sbrDecodeSingleFrame /home/seviezhou/faad2/libfaad/sbr_dec.c:568:9
#2 0x5c2f81 in reconstruct_single_channel /home/seviezhou/faad2/libfaad/specrec.c:1070:22
#3 0x556c2e in single_lfe_channel_element /home/seviezhou/faad2/libfaad/syntax.c:643:14
#4 0x556c2e in decode_sce_lfe /home/seviezhou/faad2/libfaad/syntax.c:357
#5 0x55593a in raw_data_block /home/seviezhou/faad2/libfaad/syntax.c:550:13
#6 0x5389de in aac_frame_decode /home/seviezhou/faad2/libfaad/decoder.c:990:9
#7 0x52f738 in decodeMP4file /home/seviezhou/faad2/frontend/main.c:916:25
#8 0x52f738 in faad_main /home/seviezhou/faad2/frontend/main.c:1323
#9 0x7f3373f6783f in __libc_start_main /build/glibc-e6zv40/glibc-2.23/csu/../csu/libc-start.c:291
#10 0x41a698 in _start (/home/seviezhou/faad2/frontend/faad+0x41a698)
0x621000008900 is located 0 bytes to the right of 4096-byte region [0x621000007900,0x621000008900)
allocated by thread T0 here:
#0 0x4de8a8 in __interceptor_malloc /home/seviezhou/llvm-6.0.0/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:88
#1 0x5c1a0b in allocate_single_channel /home/seviezhou/faad2/libfaad/specrec.c:736:48
#2 0x5c1a0b in reconstruct_single_channel /home/seviezhou/faad2/libfaad/specrec.c:934
#3 0x556c2e in single_lfe_channel_element /home/seviezhou/faad2/libfaad/syntax.c:643:14
#4 0x556c2e in decode_sce_lfe /home/seviezhou/faad2/libfaad/syntax.c:357
#5 0x55593a in raw_data_block /home/seviezhou/faad2/libfaad/syntax.c:550:13
SUMMARY: AddressSanitizer: heap-buffer-overflow /home/seviezhou/faad2/libfaad/sbr_qmf.c:614:27 in sbr_qmf_synthesis_64
Shadow bytes around the buggy address:
0x0c427fff90d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c427fff90e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c427fff90f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c427fff9100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c427fff9110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c427fff9120:[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c427fff9130: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c427fff9140: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c427fff9150: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c427fff9160: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c427fff9170: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==39716==ABORTING
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