lkml.org 
[lkml]   [2007]   [Sep]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH 1/7] ecryptfs: allow lower fs to interpret ATTR_KILL_S*ID
Make sure ecryptfs doesn't trip the BUG() in notify_change. This also
allows the lower filesystem to interpret these bits in their own way.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
---
fs/ecryptfs/inode.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 131954b..dac4199 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -959,6 +959,14 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
if (rc < 0)
goto out;
}
+
+ /*
+ * mode change is for clearing setuid/setgid bits. Allow lower fs
+ * to interpret this in its own way.
+ */
+ if (ia->ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID))
+ ia->ia_valid &= ~ATTR_MODE;
+
rc = notify_change(lower_dentry, ia);
out:
fsstack_copy_attr_all(inode, lower_inode, NULL);
--
1.5.2.1
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-09-10 16:55    [W:2.182 / U:0.012 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site