Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ee6f958291e2a768fd727e7a67badfff0b67711a
Commit: ee6f958291e2a768fd727e7a67badfff0b67711a
Parent: 2f1a2ccb9c0de632ab07193becf5f7121794f6ae
Author: Miklos Szeredi <[EMAIL PROTECTED]>
AuthorDate: Tue May 8 00:30:40 2007 -0700
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Tue May 8 11:15:12 2007 -0700
check privileges before setting mount propagation
There's a missing check for CAP_SYS_ADMIN in do_change_type().
Signed-off-by: Miklos Szeredi <[EMAIL PROTECTED]>
Cc: Al Viro <[EMAIL PROTECTED]>
Cc: Christoph Hellwig <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
fs/namespace.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/fs/namespace.c b/fs/namespace.c
index 72bb106..b696e3a 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -886,6 +886,9 @@ static int do_change_type(struct nameidata *nd, int flag)
int recurse = flag & MS_REC;
int type = flag & ~MS_REC;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
if (nd->dentry != nd->mnt->mnt_root)
return -EINVAL;
-
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