Bug 550893

Sumário:

SELinux is preventing /usr/lib64/chromium-browser/chromium-browser from loading
/usr/lib64/chromium-browser/libsandbox.so which requires text relocation.

Descrição detalhada:

[chromium-browse tem um tipo permissivo (chrome_sandbox_t). Esse acesso não foi
negado.]

The chromium-browse application attempted to load
/usr/lib64/chromium-browser/libsandbox.so which requires text relocation. This
is a potential security problem. Most libraries do not need this permission.
Libraries 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. You can configure SELinux temporarily to allow
/usr/lib64/chromium-browser/libsandbox.so to use relocation as a workaround,
until the library is fixed. Please file a bug report.

Permitindo acesso:

If you trust /usr/lib64/chromium-browser/libsandbox.so to run correctly, you can
change the file context to textrel_shlib_t. "chcon -t textrel_shlib_t
'/usr/lib64/chromium-browser/libsandbox.so'" 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 textrel_shlib_t
'/usr/lib64/chromium-browser/libsandbox.so'"

Comando de correção:

chcon -t textrel_shlib_t '/usr/lib64/chromium-browser/libsandbox.so'

Informações adicionais:

Contexto de origem            unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c
                              0.c1023
Contexto de destino           system_u:object_r:lib_t:s0
Objetos de destino            /usr/lib64/chromium-browser/libsandbox.so [ file ]
Origem                        chromium-browse
Caminho da origem             /usr/lib64/chromium-browser/chromium-browser
Porta                         <Desconhecido>
Máquina                      (removed)
Pacotes RPM de origem         chromium-4.0.277.0-0.1.20091221svn35107.fc12
Pacotes RPM de destino        chromium-libs-4.0.277.0-0.1.20091221svn35107.fc12
RPM da política              selinux-policy-3.6.32-59.fc12
Selinux habilitado            True
Tipo de política             targeted
Modo reforçado               Enforcing
Nome do plugin                allow_execmod
Nome da máquina              (removed)
Plataforma                    Linux (removed) 2.6.31.9-174.fc12.x86_64 #1 SMP Mon
                              Dec 21 05:33:33 UTC 2009 x86_64 x86_64
Contador de alertas           11
Visto pela primeira vez em    Sáb 26 Dez 2009 08:27:24 BRT
Visto pela última vez em     Dom 27 Dez 2009 21:50:22 BRT
ID local                      d211dc9b-3af0-422b-881c-7356561b235c
Números de linha             

Mensagens de auditoria não p 

node=(removed) type=AVC msg=audit(1261961422.210:22): avc:  denied  { execmod } for  pid=2962 comm="chromium-browse" path="/usr/lib64/chromium-browser/libsandbox.so" dev=dm-1 ino=180332 scontext=unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lib_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1261961422.210:22): arch=c000003e syscall=10 success=yes exit=128 a0=7ffec9634000 a1=1c000 a2=5 a3=7ffec9639280 items=0 ppid=0 pid=2962 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="chromium-browse" exe="/usr/lib64/chromium-browser/chromium-browser" subj=unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  selinux-policy-3.6.32-59.fc12,allow_execmod,chromium-browse,chrome_sandbox_t,lib_t,file,execmod
audit2allow suggests:

#============= chrome_sandbox_t ==============
allow chrome_sandbox_t lib_t:file execmod;