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Commit 9c3580aa authored by Miklos Szeredi's avatar Miklos Szeredi Committed by Linus Torvalds
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ecryptfs: add missing lock around notify_change 



Callers of notify_change() need to hold i_mutex.

Signed-off-by: default avatarMiklos Szeredi <mszeredi@suse.cz>
Cc: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 18d1dbf1

fs/ecryptfs/inode.c

+2 −0
Original line number Diff line number Diff line
@@ -908,7 +908,9 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia) 
	if (ia->ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID))

		ia->ia_valid &= ~ATTR_MODE;



	mutex_lock(&lower_dentry->d_inode->i_mutex);

	rc = notify_change(lower_dentry, ia);

	mutex_unlock(&lower_dentry->d_inode->i_mutex);

out:

	fsstack_copy_attr_all(inode, lower_inode, NULL);

	return rc;