Attachment 156639 Details for Bug 243218 – full troubleshoot

full troubleshoot

selinux_alert_perl_backuppc.txt (text/plain), 3.09 KB, created by Martin Jürgens on 2007-06-09 10:11:18 UTC

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Creator: Martin Jürgens

Created: 2007-06-09 10:11:18 UTC

Size: 3.09 KB

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>Summary
>    SELinux is preventing /usr/bin/perl5.8.8 (httpd_t) "write" to BackupPC.sock
>    (var_log_t).
>
>Detailed Description
>    SELinux is preventing /usr/bin/perl5.8.8 (httpd_t) "write" to BackupPC.sock
>    (var_log_t). The SELinux type %TARGET_TYPE, is a generic type for all files
>    in the directory and very few processes (SELinux Domains) are allowed to
>    write to this SELinux type.  This type of denial usual indicates a
>    mislabeled file.  By default a file created in a directory has the gets the
>    context of the parent directory, but SELinux policy has rules about the
>    creation of directories, that say if a process running in one SELinux Domain
>    (D1) creates a file in a directory with a particular SELinux File Context
>    (F1) the file gets a different File Context (F2).  The policy usually allows
>    the SELinux Domain (D1) the ability to write or append on (F2).  But if for
>    some reason a file (BackupPC.sock) was created with the wrong context, this
>    domain will be denied.  The usual solution to this problem is to reset the
>    file context on the target file, restorecon -v BackupPC.sock.  If the file
>    context does not change from var_log_t, then this is probably a bug in
>    policy.  Please file a http://bugzilla.redhat.com/bugzilla/enter_bug.cgi
>    against the selinux-policy package. If it does change, you can try your
>    application again to see if it works.  The file context could have been
>    mislabeled by editing the file or moving the file from a different
>    directory, if the file keeps getting mislabeled, check the init scripts to
>    see if they are doing something to mislabel the file.
>
>Allowing Access
>    You can attempt to fix file context by executing restorecon -v BackupPC.sock
>
>    The following command will allow this access:
>    restorecon BackupPC.sock
>
>Additional Information        
>
>Source Context                user_u:system_r:httpd_t
>Target Context                user_u:object_r:var_log_t
>Target Objects                BackupPC.sock [ sock_file ]
>Affected RPM Packages         perl-5.8.8-18.fc7 [application]
>Policy RPM                    selinux-policy-2.6.4-13.fc7
>Selinux Enabled               True
>Policy Type                   targeted
>MLS Enabled                   True
>Enforcing Mode                Enforcing
>Plugin Name                   plugins.mislabeled_file
>Host Name                     medora-desktop
>Platform                      Linux medora-desktop 2.6.21-1.3194.fc7 #1 SMP Wed
>                              May 23 22:35:01 EDT 2007 i686 athlon
>Alert Count                   2
>First Seen                    Sa 09 Jun 2007 12:08:59 CEST
>Last Seen                     Sa 09 Jun 2007 12:09:00 CEST
>Local ID                      3afa3dc0-dc35-419b-ab64-abf2c07b30ad
>Line Numbers                  
>
>Raw Audit Messages            
>
>avc: denied { write } for comm="perl5.8.8" dev=dm-0 egid=48 euid=498
>exe="/usr/bin/perl5.8.8" exit=-13 fsgid=48 fsuid=498 gid=48 items=0
>name="BackupPC.sock" pid=6744 scontext=user_u:system_r:httpd_t:s0 sgid=48
>subj=user_u:system_r:httpd_t:s0 suid=498 tclass=sock_file
>tcontext=user_u:object_r:var_log_t:s0 tty=(none) uid=48
>

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Attachments on bug 243218: 156639