Re: broken ownership of /proc/sys/ files on 2.6.27

From: Al Viro
Date: Sun Nov 16 2008 - 17:19:22 EST


On Sun, Nov 16, 2008 at 09:59:22PM +0100, Peter Palfrader wrote:
> Hi,
>
> on several (probably all) of my systems running a 2.6.27 kernel on at
> least i386, amd64, ia64, sparc proc/sys does have files not owned by
> root:

D'oh...

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 94fcfff..06ed10b 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -31,6 +31,7 @@ static struct inode *proc_sys_make_inode(struct super_block *sb,
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
inode->i_flags |= S_PRIVATE; /* tell selinux to ignore this inode */
inode->i_mode = table->mode;
+ inode->i_uid = inode->i_gid = 0;
if (!table->child) {
inode->i_mode |= S_IFREG;
inode->i_op = &proc_sys_inode_operations;
--
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