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DescriptionAlex Williamson
2010-09-08 18:14:18 UTC
Description of problem:
Trying to create a simple wrapper:
$ cat /usr/libexec/qemu-kvm.foo
#!/bin/sh
exec /usr/libexec/qemu-kvm "$@"
And setting permissions via restorecon:
$ ls -Z /usr/libexec/qemu-kvm*
-rwxr-xr-x. root root system_u:object_r:qemu_exec_t:s0 /usr/libexec/qemu-kvm
-rwxr-xr-x. root root system_u:object_r:qemu_exec_t:s0 /usr/libexec/qemu-kvm.foo
Results in exec_no_trans errors in audit.log. audit2allow resolves the problem. As the transition is safe, selinux should allow this by default.
Version-Release number of selected component (if applicable):
selinux-policy-3.7.19-42.el6.noarch
How reproducible:
100%
Steps to Reproduce:
1. See description above
2. virsh edit <guest domain> # point emulator at qemu-kvm.foo
3. virst start <guest domain>
Actual results:
Fail, audit.log error
Expected results:
Works
Additional info:
This is the change that seems to make it work:
module qemutxtimer 1.0;
require {
type svirt_t;
type qemu_exec_t;
type qemu_t;
class file execute_no_trans;
}
#============= qemu_t ==============
#!!!! This avc is allowed in the current policy
allow qemu_t qemu_exec_t:file execute_no_trans;
#============= svirt_t ==============
allow svirt_t qemu_exec_t:file execute_no_trans;
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.
http://rhn.redhat.com/errata/RHBA-2011-0526.html
Description of problem: Trying to create a simple wrapper: $ cat /usr/libexec/qemu-kvm.foo #!/bin/sh exec /usr/libexec/qemu-kvm "$@" And setting permissions via restorecon: $ ls -Z /usr/libexec/qemu-kvm* -rwxr-xr-x. root root system_u:object_r:qemu_exec_t:s0 /usr/libexec/qemu-kvm -rwxr-xr-x. root root system_u:object_r:qemu_exec_t:s0 /usr/libexec/qemu-kvm.foo Results in exec_no_trans errors in audit.log. audit2allow resolves the problem. As the transition is safe, selinux should allow this by default. Version-Release number of selected component (if applicable): selinux-policy-3.7.19-42.el6.noarch How reproducible: 100% Steps to Reproduce: 1. See description above 2. virsh edit <guest domain> # point emulator at qemu-kvm.foo 3. virst start <guest domain> Actual results: Fail, audit.log error Expected results: Works Additional info: This is the change that seems to make it work: module qemutxtimer 1.0; require { type svirt_t; type qemu_exec_t; type qemu_t; class file execute_no_trans; } #============= qemu_t ============== #!!!! This avc is allowed in the current policy allow qemu_t qemu_exec_t:file execute_no_trans; #============= svirt_t ============== allow svirt_t qemu_exec_t:file execute_no_trans;