[Qemu-devel] stack smash while using SDL 1.2.5 with QEMU 2.9

[Qemu-devel] stack smash while using SDL 1.2.5 with QEMU 2.9

[Taimoor Mirza]

Hi Guys,

I have been using QEMU 1.5 earlier with SDL version 1.2.5. Now we have
decided to move to new version of QEMU. I have built QEMU binaries with SDL
support using SDL 1.2.5 that we were using earlier. Windows binaries work
fine but I get stack smash in sdl.c on Linux. Below are stack traces that I
have got from GDB:

Program received signal SIGABRT, Aborted.
0x00007ffff6e74c37 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
56    ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0  0x00007ffff6e74c37 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1  0x00007ffff6e78028 in __GI_abort () at abort.c:89
#2  0x00007ffff6eb12a4 in __libc_message (do_abort=do_abort@entry=1,
fmt=fmt@entry=0x7ffff6fc0d70 "*** %s ***: %s terminated\n") at
../sysdeps/posix/libc_fatal.c:175
#3  0x00007ffff6f4c83c in __GI___fortify_fail (msg=<optimized out>,
msg@entry=0x7ffff6fc0d58 "stack smashing detected") at fortify_fail.c:38
#4  0x00007ffff6f4c7e0 in __stack_chk_fail () at stack_chk_fail.c:28
#5  0x0000555555a66909 in sdl_display_init (ds=<optimized out>,
full_screen=0, no_frame=<optimized out>) at
/scratch/tmirza/builds/qemu_build/obj/qemu-src-master-999999-arm-linux-gnueabi-x86_64-linux-gnu/ui/sdl.c:1054
#6  0x0000000006e00002 in ?? ()
#7  0x0000000006e00003 in ?? ()
#8  0x0000555556feca30 in ?? ()
#9  0x0000555555c784e1 in ?? ()
#10 0x0000000000000000 in ?? ()

I want to know whether it is a known issue and Is QEMU 2.9 compatible with
SDL 1.2.5?

Thanks,
Taimoor Mirza

Re: [Qemu-devel] stack smash while using SDL 1.2.5 with QEMU 2.9

[Markus Armbruster]

Gerd, any ideas?

Taimoor Mirza <taimoor.mrza@gmail.com> writes:

> Hi Guys,
>
> I have been using QEMU 1.5 earlier with SDL version 1.2.5. Now we have
> decided to move to new version of QEMU. I have built QEMU binaries with SDL
> support using SDL 1.2.5 that we were using earlier. Windows binaries work
> fine but I get stack smash in sdl.c on Linux. Below are stack traces that I
> have got from GDB:
>
> Program received signal SIGABRT, Aborted.
> 0x00007ffff6e74c37 in __GI_raise (sig=sig@entry=6) at
> ../nptl/sysdeps/unix/sysv/linux/raise.c:56
> 56    ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory.
> (gdb) bt
> #0  0x00007ffff6e74c37 in __GI_raise (sig=sig@entry=6) at
> ../nptl/sysdeps/unix/sysv/linux/raise.c:56
> #1  0x00007ffff6e78028 in __GI_abort () at abort.c:89
> #2  0x00007ffff6eb12a4 in __libc_message (do_abort=do_abort@entry=1,
> fmt=fmt@entry=0x7ffff6fc0d70 "*** %s ***: %s terminated\n") at
> ../sysdeps/posix/libc_fatal.c:175
> #3  0x00007ffff6f4c83c in __GI___fortify_fail (msg=<optimized out>,
> msg@entry=0x7ffff6fc0d58 "stack smashing detected") at fortify_fail.c:38
> #4  0x00007ffff6f4c7e0 in __stack_chk_fail () at stack_chk_fail.c:28
> #5  0x0000555555a66909 in sdl_display_init (ds=<optimized out>,
> full_screen=0, no_frame=<optimized out>) at
> /scratch/tmirza/builds/qemu_build/obj/qemu-src-master-999999-arm-linux-gnueabi-x86_64-linux-gnu/ui/sdl.c:1054
> #6  0x0000000006e00002 in ?? ()
> #7  0x0000000006e00003 in ?? ()
> #8  0x0000555556feca30 in ?? ()
> #9  0x0000555555c784e1 in ?? ()
> #10 0x0000000000000000 in ?? ()
>
> I want to know whether it is a known issue and Is QEMU 2.9 compatible with
> SDL 1.2.5?
>
> Thanks,
> Taimoor Mirza

Re: [Qemu-devel] stack smash while using SDL 1.2.5 with QEMU 2.9

[Thomas Huth]

On 21.08.2017 15:02, Taimoor Mirza wrote:
> Hi Guys,
> 
> I have been using QEMU 1.5 earlier with SDL version 1.2.5. Now we have
> decided to move to new version of QEMU. I have built QEMU binaries with SDL
> support using SDL 1.2.5 that we were using earlier.
SDL 1.2.5 is incredibly old - it has been released 2002. Could you
please try with a newer version instead (i.e. version 1.2.15 from 2012,
or even upgrade to SDL2)?

 Thomas

Re: [Qemu-devel] stack smash while using SDL 1.2.5 with QEMU 2.9

[Gerd Hoffmann]

On Wed, 2017-09-06 at 08:28 +0200, Markus Armbruster wrote:
> Gerd, any ideas?

> > I want to know whether it is a known issue and Is QEMU 2.9
> > compatible with
> > SDL 1.2.5?

Everything working fine here, even valgrind doesn't report anything
unusual.

qemu 2.10, SDL 1.2.15

Do you really use SDL 1.2.5 not 1.2.15?
If so I'd strongly suggest to update SDL.

cheers,
  Gerd