Error running ffmpeg due to permission denied on library

Robert Foster rfoster at mountainvisions.com.au
Thu Apr 27 02:41:09 UTC 2006


Hi,
I'm trying to get ffmpeg working for Gallery2 on FC5, and getting the
following error (from the debug message via Gallery):
 
Executing: ( "/usr/bin/ffmpeg"  "-h" )

2>/MV/webs/Repository/gallery/tmp/g2dbgitTQYC

file_exists(/MV/webs/Repository/gallery/tmp/g2dbgitTQYC)

filesize(/MV/webs/Repository/gallery/tmp/g2dbgitTQYC)

fopen(/MV/webs/Repository/gallery/tmp/g2dbgitTQYC, r, 0)

feof(Resource id #108)

fgets(Resource id #108, 4096)

feof(Resource id #108)

fgets(Resource id #108, 4096)

feof(Resource id #108)

fclose(Resource id #108)

unlink(/MV/webs/Repository/gallery/tmp/g2dbgitTQYC)

Regular Output:

Error Output:

/usr/bin/ffmpeg: error while loading shared libraries: libavcodec.so.51:

cannot enable executable stack as shared object requires: Permission

denied

Status: 127 (expected 0)
A quick look in /usr/lib reveals:
 
-rwxr-xr-x  root     root     system_u:object_r:textrel_shlib_t
/usr/lib/libavcodec-CVS.so
lrwxrwxrwx  root     root     system_u:object_r:lib_t
/usr/lib/libavcodec.so -> libavcodec-CVS.so
lrwxrwxrwx  root     root     system_u:object_r:lib_t
/usr/lib/libavcodec.so.51 -> libavcodec-CVS.so

 
/var/log/audit/audit.log shows:
 
type=SYSCALL msg=audit(1146010953.133:45163): arch=40000003 syscall=125
success=no exit=-13 a0=bfc5b000 a1=1000 a2=1000007 a3=fffff000 items=0
pid=25005 auid=1000 uid=48 gid=48 euid=48 suid=48 fsuid=48 egid=48 sgid=48
fsgid=48 comm="ffmpeg" exe="/usr/bin/ffmpeg"
type=AVC msg=audit(1146010953.141:45164): avc:  denied  { execstack } for
pid=25007 comm="ffmpeg" scontext=user_u:system_r:httpd_sys_script_t:s0
tcontext=user_u:system_r:httpd_sys_script_t:s0 tclass=process
type=SYSCALL msg=audit(1146010953.141:45164): arch=40000003 syscall=125
success=no exit=-13 a0=bf9e8000 a1=1000 a2=1000007 a3=fffff000 items=0
pid=25007 auid=1000 uid=48 gid=48 euid=48 suid=48 fsuid=48 egid=48 sgid=48
fsgid=48 comm="ffmpeg" exe="/usr/bin/ffmpeg"
type=AVC msg=audit(1146010953.213:45165): avc:  denied  { execstack } for
pid=25009 comm="ffmpeg" scontext=user_u:system_r:httpd_sys_script_t:s0
tcontext=user_u:system_r:httpd_sys_script_t:s0 tclass=process
type=SYSCALL msg=audit(1146010953.213:45165): arch=40000003 syscall=125
success=no exit=-13 a0=bfbe6000 a1=1000 a2=1000007 a3=fffff000 items=0
pid=25009 auid=1000 uid=48 gid=48 euid=48 suid=48 fsuid=48 egid=48 sgid=48
fsgid=48 comm="ffmpeg" exe="/usr/bin/ffmpeg"
type=AVC msg=audit(1146010953.221:45166): avc:  denied  { execstack } for
pid=25011 comm="ffmpeg" scontext=user_u:system_r:httpd_sys_script_t:s0
tcontext=user_u:system_r:httpd_sys_script_t:s0 tclass=process
type=SYSCALL msg=audit(1146010953.221:45166): arch=40000003 syscall=125
success=no exit=-13 a0=bf89b000 a1=1000 a2=1000007 a3=fffff000 items=0
pid=25011 auid=1000 uid=48 gid=48 euid=48 suid=48 fsuid=48 egid=48 sgid=48
fsgid=48 comm="ffmpeg" exe="/usr/bin/ffmpeg"

when I run the page producing the error output.
 
I tried to set the allow_execstack boolean but it didn't make any
difference.
 
I'm out of ideas on this one - any help appreciated :)

Robert Foster 
General Manager 
Mountain Visions P/L  http://mountainvisions.com.au
<http://mountainvisions.com.au/>  
Mobile: 0418 131 065

 
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