Summary: 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://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Please file a bug report. Additional Information: Source Context system_u:system_r:svirt_t:s0:c98,c596 Target Context system_u:object_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-x86-0.11.0-11.fc12 Target RPM Packages Policy RPM selinux-policy-3.6.32-46.fc12 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Plugin Name catchall Host Name (removed) Platform Linux (removed) 2.6.31.6-145.fc12.x86_64 #1 SMP Sat Nov 21 15:57:45 EST 2009 x86_64 x86_64 Alert Count 1 First Seen Tue 01 Dec 2009 11:03:13 AM MST Last Seen Tue 01 Dec 2009 11:03:13 AM MST Local ID f5e9c9ee-58c7-4b3a-aa6b-33b88c6a09b0 Line Numbers Raw Audit Messages node=(removed) type=AVC msg=audit(1259690593.720:31062): avc: denied { write } for pid=9080 comm="qemu-kvm" name="sr0" dev=tmpfs ino=3850 scontext=system_u:system_r:svirt_t:s0:c98,c596 tcontext=system_u:object_r:virt_content_t:s0 tclass=blk_file node=(removed) type=SYSCALL msg=audit(1259690593.720:31062): arch=c000003e syscall=2 success=no exit=-13 a0=7fff51289660 a1=1002 a2=1a4 a3=30 items=0 ppid=1 pid=9080 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:c98,c596 key=(null) Hash String generated from selinux-policy-3.6.32-46.fc12,catchall,qemu-kvm,svirt_t,virt_content_t,blk_file,write audit2allow suggests: #============= svirt_t ============== allow svirt_t virt_content_t:blk_file write;
I inserted the Fedora 12 Live CD in my drive, fired up virt-manager, and told it to make a new virtual machine using the CD to boot. I then got this AVC denial. Note that /dev/sr0 is my CD/DVD drive, so writing to it is impossible anyway.
*** This bug has been marked as a duplicate of bug 537163 ***