Commit e758417e authored Feb 09, 2015 by Biswajit Paul Committed by Gerrit - the friendly Code Review server Feb 09, 2015

kernel: Restrict permissions of /proc/iomem.



The permissions of /proc/iomem currently are -r--r--r--. Everyone can
see its content. As iomem contains information about the physical memory
content of the device, restrict the information only to root.

Change-Id: If0be35c3fac5274151bea87b738a48e6ec0ae891
CRs-Fixed: 786116
Signed-off-by: Biswajit Paul <biswajitpaul@codeaurora.org>
Signed-off-by: Avijit Kanti Das <avijitnsec@codeaurora.org>

parent 399f73ac

kernel/resource.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -153,7 +153,7 @@ static const struct file_operations proc_iomem_operations = {
		static int __init ioresources_init(void)
		{
		proc_create("ioports", 0, NULL, &proc_ioports_operations);
		proc_create("iomem", 0, NULL, &proc_iomem_operations);
		proc_create("iomem", S_IRUSR, NULL, &proc_iomem_operations);
		return 0;
		}
		__initcall(ioresources_init);