The patch titled
md: require CAP_SYS_ADMIN for (re-)configuring md devices via sysfs
has been removed from the -mm tree. Its filename is
md-require-cap_sys_admin-for-re-configuring-md-devices-via-sysfs.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: md: require CAP_SYS_ADMIN for (re-)configuring md devices via sysfs
From: NeilBrown <neilb@xxxxxxx>
The ioctl requires CAP_SYS_ADMIN, so sysfs should too. Note that we don't
require CAP_SYS_ADMIN for reading attributes even though the ioctl does.
There is no reason to limit the read access, and much of the information is
already available via /proc/mdstat
Cc: Chris Wright <chrisw@xxxxxxxxxxxx>
Signed-off-by: Neil Brown <neilb@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/md/md.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN drivers/md/md.c~md-require-cap_sys_admin-for-re-configuring-md-devices-via-sysfs drivers/md/md.c
--- a/drivers/md/md.c~md-require-cap_sys_admin-for-re-configuring-md-devices-via-sysfs
+++ a/drivers/md/md.c
@@ -1926,6 +1926,8 @@ rdev_attr_store(struct kobject *kobj, st
if (!entry->store)
return -EIO;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
return entry->store(rdev, page, length);
}
@@ -2859,6 +2861,8 @@ md_attr_store(struct kobject *kobj, stru
if (!entry->store)
return -EIO;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
rv = mddev_lock(mddev);
if (!rv) {
rv = entry->store(mddev, page, length);
_
Patches currently in -mm which might be from neilb@xxxxxxx are
origin.patch
git-klibc.patch
md-dm-reduce-stack-usage-with-stacked-block-devices.patch
-
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