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Old 06-28-2010, 05:59 PM
Default qemu-kvm Trying to "Write" to a cdrom/sr0 ?? , Why?


Selinux is in "permissive" mode

Why would qemu-kvm try to "Write" to a cdrom, instead of "Read" ?


SELinux is preventing /usr/bin/qemu-kvm "write" access on sr0.

Detailed Description:

SELinux denied access requested by qemu-kvm. It is not expected that
this access
is required by qemu-kvm and this access may signal an intrusion attempt.
It is
also possible that the specific version or configuration of the
application is
causing it to require additional access.

Allowing Access:

You can generate a local policy module to allow this access - see FAQ
(http://docs.fedoraproject.org/selinux-faq-fc5/#id2961385) Please file a bug

Additional Information:

Source Context system_u:system_r:svirt_t:s0:c194,c927
Target Context system_ubject_r:virt_content_t:s0
Target Objects sr0 [ blk_file ]
Source qemu-kvm
Source Path /usr/bin/qemu-kvm
Port <Unknown>
Host (removed)
Source RPM Packages qemu-system-x86-0.12.3-8.fc13
Target RPM Packages
Policy RPM selinux-policy-3.7.19-28.fc13
Selinux Enabled True
Policy Type targeted
Enforcing Mode Enforcing
Plugin Name catchall
Host Name (removed)
Platform Linux (removed)
#1 SMP Fri
Jun 11 09:38:12 UTC 2010 x86_64 x86_64
Alert Count 1
First Seen Sat 26 Jun 2010 08:02:20 PM EDT
Last Seen Sat 26 Jun 2010 08:02:20 PM EDT
Local ID 244b6695-b55d-4548-af9a-61a8d2077cf0
Line Numbers

Raw Audit Messages

node=(removed) type=AVC msg=audit(1277596940.189:97): avc: denied {
write } for pid=11387 comm="qemu-kvm" name="sr0" dev=devtmpfs ino=5712
tcontext=system_ubject_r:virt_content_t:s0 tclass=blk_file

node=(removed) type=SYSCALL msg=audit(1277596940.189:97): arch=c000003e
syscall=2 success=no exit=-13 a0=19125d0 a1=81802 a2=0 a3=0 items=0
ppid=1 pid=11387 auid=4294967295 uid=107 gid=107 euid=107 suid=107
fsuid=107 egid=107 sgid=107 fsgid=107 tty=(none) ses=4294967295
comm="qemu-kvm" exe="/usr/bin/qemu-kvm"
subj=system_u:system_r:svirt_t:s0:c194,c927 key=(null)

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