Resumo: SELinux is preventing /usr/bin/xsane-gimp from making the program stack executable. Descrição Detalhada: The xsane application attempted to make its stack executable. This is a potential security problem. This should never ever be necessary. Stack memory is not executable on most OSes these days and this will not change. Executable stack memory is one of the biggest security problems. An execstack error might in fact be most likely raised by malicious code. Applications are sometimes coded incorrectly and request this permission. The SELinux Memory Protection Tests (http://people.redhat.com/drepper/selinux-mem.html) web page explains how to remove this requirement. If xsane does not work and you need it to work, you can configure SELinux temporarily to allow this access until the application is fixed. Please file a bug report. A Permitir o Acesso: Sometimes a library is accidentally marked with the execstack flag, if you find a library with this flag you can clear it with the execstack -c LIBRARY_PATH. Then retry your application. If the app continues to not work, you can turn the flag back on with execstack -s LIBRARY_PATH. Otherwise, if you trust xsane to run correctly, you can change the context of the executable to execmem_exec_t. "chcon -t execmem_exec_t '/usr/bin/xsane-gimp'" You must also change the default file context files on the system in order to preserve them even on a full relabel. "semanage fcontext -a -t execmem_exec_t '/usr/bin/xsane-gimp'" Comando de Correcção: chcon -t execmem_exec_t '/usr/bin/xsane-gimp' Informação Adicional: Contexto de Origem unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1 023 Contexto de Destino unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1 023 Objectos de Destino None [ process ] Fonte xsane Caminho de Origem /usr/bin/xsane-gimp Porto <Desconhecida> Máquina (removed) Pacotes RPM Fonte xsane-gimp-0.997-3.fc12 Pacotes RPM Destino RPM da Política selinux-policy-3.6.32-46.fc12 Selinux Activo True Tipo de Política targeted Modo de Execução Forçada Enforcing Nome do Plugin allow_execstack Nome da Máquina (removed) Plataforma Linux (removed) 2.6.31.5-127.fc12.i686 #1 SMP Sat Nov 7 21:41:45 EST 2009 i686 i686 Contador de Alertas 6 Primeira Vez Visto Dom 29 Nov 2009 20:47:30 WET Última Vez Visto Dom 29 Nov 2009 21:13:11 WET ID Local 46b202ef-837e-48ea-9ec8-139c55564ae4 Números de Linha Mensagens de Auditoria em Bru node=(removed) type=AVC msg=audit(1259529191.173:37466): avc: denied { execstack } for pid=9543 comm="xsane" scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tclass=process node=(removed) type=SYSCALL msg=audit(1259529191.173:37466): arch=40000003 syscall=125 success=no exit=-13 a0=bfd82000 a1=1000 a2=1000007 a3=bfd7c800 items=0 ppid=9538 pid=9543 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="xsane" exe="/usr/bin/xsane-gimp" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null) Hash String generated from selinux-policy-3.6.32-46.fc12,allow_execstack,xsane,unconfined_t,unconfined_t,process,execstack audit2allow suggests: #============= unconfined_t ============== allow unconfined_t self:process execstack;
*** This bug has been marked as a duplicate of bug 533987 ***