Bug 495465
| Summary: | SE Linux no access on Grub for KDM | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Julien Humbert <julroy67> |
| Component: | selinux-policy | Assignee: | Daniel Walsh <dwalsh> |
| Status: | CLOSED WONTFIX | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | 10 | CC: | dwalsh, jkubin, julroy67, mgrepl |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2009-04-13 12:39:44 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Yes we will not give access to the bootloader from the login screen, we consider this a security risk. If you really need this access you can add it using audit2allow -M mypol. If you do not need it, I suggest you turn it off from the kde configuration. |
Description of problem: SE Linux refuses KDM to access to grub, so it's not possible to ask to reboot immediatly on the same kernel for the next reboot or such things. Version-Release number of selected component (if applicable): selinux-policy.noarch - 3.5.13-55.fc10 Steps to Reproduce: 1.In KDE KDM configuration module choose Grub as the boot manager. 2.At each logout, reboot or shutdown, SE Linux will not grant access to Grub for KDM. Actual results: setroubleshoot opens with this error (in French) : « SELinux empêche kdm (xdm_t) "execute" à ./grub ("bootloader_exec_t"). » Expected results: Grant access to Grub for KDM Additional info: Full report from setroubleshoot : Contexte source: system_u:system_r:xdm_t:s0-s0:c0.c1023Contexte cible: system_u:object_r:bootloader_exec_t:s0Objets du contexte: ./grub [ file ]source: kdmChemin de la source: /usr/bin/kdmPort: <Inconnu>Hôte: Ayumu-chanPaquetages RPM source: kdm-4.2.2-2.fc10Paquetages RPM cible: Politique RPM: selinux-policy-3.5.13-55.fc10Selinux activé: TrueType de politique: targetedMLS activé: TrueMode strict: EnforcingNom du plugin: catchall_fileNom de l'hôte: Ayumu-chanPlateforme: Linux Ayumu-chan 2.6.27.21-170.2.56.fc10.x86_64 #1 SMP Mon Mar 23 23:08:10 EDT 2009 x86_64 x86_64Compteur d'alertes: 15Première alerte: dim. 07 déc. 2008 20:22:58 CETDernière alerte: dim. 12 avril 2009 21:18:06 CESTID local: b94338ec-eb1d-44a7-8081-99b5e187be93Numéros des lignes: Messages d'audit bruts :node=Ayumu-chan type=AVC msg=audit(1239563886.380:13): avc: denied { execute } for pid=2162 comm="kdm" name="grub" dev=sda1 ino=134392 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:bootloader_exec_t:s0 tclass=file node=Ayumu-chan type=SYSCALL msg=audit(1239563886.380:13): arch=c000003e syscall=21 success=no exit=-13 a0=7fff8685bd06 a1=1 a2=0 a3=7efefefefefefeff items=0 ppid=1 pid=2162 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="kdm" exe="/usr/bin/kdm" subj=system_u:system_r:xdm_t:s0-s0:c0.c1023 key=(null)