Messages in this thread Patch in this message | | | Date | Fri, 13 Jun 2008 17:10:36 -0700 | From | Greg KH <> | Subject | [patch 09/47] eCryptfs: protect crypt_stat->flags in ecryptfs_open() |
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-stable review patch. If anyone has any objections, please let us know.
------------------ From: Michael Halcrow <mhalcrow@us.ibm.com>
upstream commit: 2f9b12a31fcb738ea8c9eb0d4ddf906c6f1d696c
Make sure crypt_stat->flags is protected with a lock in ecryptfs_open().
Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Chris Wright <chrisw@sous-sol.org> --- fs/ecryptfs/file.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/fs/ecryptfs/file.c +++ b/fs/ecryptfs/file.c @@ -195,7 +195,9 @@ static int ecryptfs_open(struct inode *i file, ecryptfs_inode_to_private(inode)->lower_file); if (S_ISDIR(ecryptfs_dentry->d_inode->i_mode)) { ecryptfs_printk(KERN_DEBUG, "This is a directory\n"); + mutex_lock(&crypt_stat->cs_mutex); crypt_stat->flags &= ~(ECRYPTFS_ENCRYPTED); + mutex_unlock(&crypt_stat->cs_mutex); rc = 0; goto out; } --
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