[libav-bugs] [Bug 933] mp3 file causes segmentation fault in avcodec_decode_audio4()

bugzilla at libav.org bugzilla at libav.org
Tue Feb 28 05:51:45 CET 2017


https://bugzilla.libav.org/show_bug.cgi?id=933

Tony He <huangya90 at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |huangya90 at gmail.com

--- Comment #6 from Tony He <huangya90 at gmail.com> ---
(In reply to Sean McGovern from comment #5)
> (In reply to Sean McGovern from comment #4)
> > (In reply to Sanjay from comment #3)
> > > Ok. but will it be possible for me to know what is the patch corresponding
> > > to this particular bug (or some more info, like bugid)?
> > 
> > I don't know off-hand. I will need to do a git-bisect to see which commit
> > fixed this issue.
> 
> Tried to do this last night but came up empty. Will give it another chance
> tonight as I think I may have run the bisect incorrectly.


Hi Sean McGovern,

Do you have any update about this issue. I think this bug is same with my bug
https://bugzilla.libav.org/show_bug.cgi?id=1032 according to below log I
provided ? Can you check? Thanks.

----log starts----
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffbfa4b700 (LWP 25878)]
0x00007fff9200077e in frame_configure_elements (avctx=0x7fff8b74b800) at
libavcodec/aacdec.c:194
194                 ac->output_element[ch]->ret = (float
*)ac->frame.extended_data[ch];
(gdb) bt
#0  0x00007fff9200077e in frame_configure_elements (avctx=0x7fff8b74b800) at
libavcodec/aacdec.c:194
#1  aac_decode_frame_int (avctx=avctx at entry=0x7fff8b74b800,
data=data at entry=0x7fff93d7af60,
got_frame_ptr=got_frame_ptr at entry=0x7fffbfa4a9fc, gb=gb at entry=0x7fffbfa4a910)
at libavcodec/aacdec.c:2491
#2  0x00007fff92002ef0 in aac_decode_frame (avctx=0x7fff8b74b800,
data=0x7fff93d7af60, got_frame_ptr=0x7fffbfa4a9fc, avpkt=<optimized out>) at
libavcodec/aacdec.c:2645
#3  0x00007fff922e5d1a in avcodec_decode_audio4 (avctx=0x7fff8b74b800,
frame=0x7fff93d7af60, got_frame_ptr=0x7fffbfa4a9fc, avpkt=0x7fffbfa4aa48) at
libavcodec/utils.c:1384
#4  0x00007fffeb6658a7 in ?? () from /usr/lib/firefox/libxul.so
#5  0x00007fffeb665090 in ?? () from /usr/lib/firefox/libxul.so
#6  0x00007fffeb665017 in ?? () from /usr/lib/firefox/libxul.so
#7  0x00007fffea622221 in ?? () from /usr/lib/firefox/libxul.so
#8  0x00007fffea61fc30 in ?? () from /usr/lib/firefox/libxul.so
#9  0x00007fffea62068f in ?? () from /usr/lib/firefox/libxul.so
#10 0x00007fffea637ccd in ?? () from /usr/lib/firefox/libxul.so
#11 0x00007fffea8d6f45 in ?? () from /usr/lib/firefox/libxul.so
#12 0x00007fffea8c2a29 in ?? () from /usr/lib/firefox/libxul.so
#13 0x00007fffea620b95 in ?? () from /usr/lib/firefox/libxul.so
#14 0x00007ffff68ed82c in ?? () from /usr/lib/firefox/libnspr4.so
#15 0x00007ffff7bc4184 in start_thread (arg=0x7fffbfa4b700) at
pthread_create.c:312
#16 0x00007ffff6ebe37d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
----log ends----

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