From 25354c4fee169710fd9da15f3bb2abaa24dcf933 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Thu, 13 Aug 2009 09:45:03 -0400 Subject: SELinux: add selinux_kernel_module_request This patch adds a new selinux hook so SELinux can arbitrate if a given process should be allowed to trigger a request for the kernel to try to load a module. This is a different operation than a process trying to load a module itself, which is already protected by CAP_SYS_MODULE. Signed-off-by: Eric Paris Acked-by: Serge Hallyn Signed-off-by: James Morris --- security/selinux/hooks.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'security/selinux/hooks.c') diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 5dee88362e7..5aa45b16812 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -3296,6 +3296,11 @@ static int selinux_kernel_create_files_as(struct cred *new, struct inode *inode) return 0; } +static int selinux_kernel_module_request(void) +{ + return task_has_system(current, SYSTEM__MODULE_REQUEST); +} + static int selinux_task_setpgid(struct task_struct *p, pid_t pgid) { return current_has_perm(p, PROCESS__SETPGID); @@ -5404,6 +5409,7 @@ static struct security_operations selinux_ops = { .cred_prepare = selinux_cred_prepare, .kernel_act_as = selinux_kernel_act_as, .kernel_create_files_as = selinux_kernel_create_files_as, + .kernel_module_request = selinux_kernel_module_request, .task_setpgid = selinux_task_setpgid, .task_getpgid = selinux_task_getpgid, .task_getsid = selinux_task_getsid, -- cgit v1.2.3