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SubjectRe: sysfs mount point permissions in 2.5.64

On Thu, 6 Mar 2003, Douglas Gilbert wrote:

> In lk 2.5.64 on my i386 box the sysfs mount point
> ( "/sys") changes permission from:
> drwxr-xr-x
> to
> drw-r--r--
> during the boot process. I didn't notice this feature
> in lk 2.5.63 . Chmodding the directory back to its former
> permissions get overridden by subsequent boot sequences.
>
> This change in permissions inhibits non-root users from using
> utilities that scan sysfs for information (e.g. lsscsi).
>
> Is this a feature or otherwise?

This is certainly not intended, and is entirely my fault. The patch below
should fix it.

-pat

===== fs/sysfs/mount.c 1.5 vs edited =====
--- 1.5/fs/sysfs/mount.c Tue Mar 4 12:17:14 2003
+++ edited/fs/sysfs/mount.c Wed Mar 5 17:06:25 2003
@@ -33,7 +33,7 @@
sb->s_op = &sysfs_ops;
sysfs_sb = sb;

- inode = sysfs_new_inode(S_IFDIR | S_IRUGO | S_IWUSR);
+ inode = sysfs_new_inode(S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO);
if (inode) {
inode->i_op = &simple_dir_inode_operations;
inode->i_fop = &simple_dir_operations;
-
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