Bug 546027

Yhteenveto:

SELinux is preventing /usr/local/games/darwinia/lib/darwinia.bin.x86 from
loading /usr/local/games/darwinia/lib/libSDL-1.2.so.0 which requires text
relocation.

Yksityiskohtainen kuvaus:

The darwinia.bin.x8 application attempted to load
/usr/local/games/darwinia/lib/libSDL-1.2.so.0 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/local/games/darwinia/lib/libSDL-1.2.so.0 to use relocation as a workaround,
until the library is fixed. Please file a bug report.

Sallitaan pääsy:

If you trust /usr/local/games/darwinia/lib/libSDL-1.2.so.0 to run correctly, you
can change the file context to textrel_shlib_t. "chcon -t textrel_shlib_t
'/usr/local/games/darwinia/lib/libSDL-1.2.so.0'" 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/local/games/darwinia/lib/libSDL-1.2.so.0'"

Korjauskomento:

chcon -t textrel_shlib_t '/usr/local/games/darwinia/lib/libSDL-1.2.so.0'

Lisätiedot:

Lähdekonteksti               unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Kohdekonteksti                system_u:object_r:lib_t:s0
Kohdeobjektit                 /usr/local/games/darwinia/lib/libSDL-1.2.so.0 [
                              file ]
Lähde                        darwinia.bin.x8
Lähteen polku                /usr/local/games/darwinia/lib/darwinia.bin.x86
Portti                        <Tuntematon>
Kone                          (removed)
Lähteen RPM-paketit          
Kohteen RPM-paketit           
Käytännön RPM              selinux-policy-3.6.32-55.fc12
SELinux käytössä           True
Käytännön tyyppi           targeted
Toimeenpanotila               Enforcing
Liitännäisen nimi           allow_execmod
Konenimi                      (removed)
Alusta                        Linux (removed) 2.6.31.6-162.fc12.x86_64 #1 SMP Fri
                              Dec 4 00:06:26 EST 2009 x86_64 x86_64
Varoitusten määrä          1
Ensimmäinen                  ke  9. joulukuuta 2009 22.07.33
Viimeisin                     ke  9. joulukuuta 2009 22.07.33
Paikallinen tunniste          96597b33-fcd5-44a6-9daa-ba55f3eb3a12
Rivinumerot                   

Muokkaamattomat tarkastusvies 

node=(removed) type=AVC msg=audit(1260389253.529:25943): avc:  denied  { execmod } for  pid=15194 comm="darwinia.bin.x8" path="/usr/local/games/darwinia/lib/libSDL-1.2.so.0" dev=dm-0 ino=195511 scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lib_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1260389253.529:25943): arch=40000003 syscall=125 success=no exit=-13 a0=7a7000 a1=62000 a2=5 a3=ffc57ad0 items=0 ppid=15188 pid=15194 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=pts2 ses=1 comm="darwinia.bin.x8" exe="/usr/local/games/darwinia/lib/darwinia.bin.x86" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  selinux-policy-3.6.32-55.fc12,allow_execmod,darwinia.bin.x8,unconfined_t,lib_t,file,execmod
audit2allow suggests:

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