| Summary: | SELinux is preventing /usr/lib/chromium-browser/chromium-browser from 'execmod' accesses on the file /usr/lib/libffmpegsumo.so.0.0.0. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Jann Horn <jannhorn> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED RAWHIDE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | rawhide | CC: | dominick.grift, dwalsh, jlbouras, mgrepl, tcallawa |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | setroubleshoot_trace_hash:e2c349cfe75f4ed43eaccf779e0ac31fa82c5ed4dda4749faea1f744e860da7c | ||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-07-20 21:43:28 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
The Alert tells you what to do. Daniel Walsh: True, but I don't think that it's a good idea to force every chromium user to do this in order to be able to play html5 videos. Wouldn't it be a sensible default to allow applications to do what they're supposed to do? Who shipped /usr/lib/libffmpegsumo.so.0.0.0? They built it incorrectly. We are trying to confine chrome-sandbox to work with only well made libraries. Dan, it's one of mine. Fixed in selinux-policy-3.10.0-7.fc16 |
SELinux is preventing /usr/lib/chromium-browser/chromium-browser from 'execmod' accesses on the file /usr/lib/libffmpegsumo.so.0.0.0. ***** Plugin allow_execmod (91.4 confidence) suggests ********************** If you want to allow chromium-browser to have execmod access on the libffmpegsumo.so.0.0.0 file Then you need to change the label on '/usr/lib/libffmpegsumo.so.0.0.0' Do # semanage fcontext -a -t textrel_shlib_t '/usr/lib/libffmpegsumo.so.0.0.0' # restorecon -v '/usr/lib/libffmpegsumo.so.0.0.0' ***** Plugin catchall (9.59 confidence) suggests *************************** If you believe that chromium-browser should be allowed execmod access on the libffmpegsumo.so.0.0.0 file by default. Then you should report this as a bug. You can generate a local policy module to allow this access. Do allow this access for now by executing: # grep chromium-browse /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c 0.c1023 Target Context system_u:object_r:lib_t:s0 Target Objects /usr/lib/libffmpegsumo.so.0.0.0 [ file ] Source chromium-browse Source Path /usr/lib/chromium-browser/chromium-browser Port <Unbekannt> Host (removed) Source RPM Packages chromium-12.0.742.112-1.fc15 Target RPM Packages chromium-ffmpegsumo-11.0.696.68-1.fc15 Policy RPM selinux-policy-3.9.16-26.fc15 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name (removed) Platform Linux (removed) 2.6.38.8-35.fc15.i686 #1 SMP Wed Jul 6 14:46:26 UTC 2011 i686 i686 Alert Count 3 First Seen Mi 13 Jul 2011 23:21:28 CEST Last Seen Mi 13 Jul 2011 23:21:28 CEST Local ID 9a710a3b-dda0-42a0-acc0-3e3cf0c10bc2 Raw Audit Messages type=AVC msg=audit(1310592088.583:97): avc: denied { execmod } for pid=32019 comm="chromium-browse" path="/usr/lib/libffmpegsumo.so.0.0.0" dev=dm-2 ino=152126 scontext=unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lib_t:s0 tclass=file type=SYSCALL msg=audit(1310592088.583:97): arch=i386 syscall=mprotect success=no exit=EACCES a0=4ac9000 a1=e7000 a2=5 a3=bfad0110 items=0 ppid=0 pid=32019 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/lib/chromium-browser/chromium-browser subj=unconfined_u:unconfined_r:chrome_sandbox_t:s0-s0:c0.c1023 key=(null) Hash: chromium-browse,chrome_sandbox_t,lib_t,file,execmod audit2allow #============= chrome_sandbox_t ============== allow chrome_sandbox_t lib_t:file execmod; audit2allow -R #============= chrome_sandbox_t ============== allow chrome_sandbox_t lib_t:file execmod;