This is a note to let you know that I've just added the patch titled fuse: readdirplus: fix dentry leak to the 3.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: fuse-readdirplus-fix-dentry-leak.patch and it can be found in the queue-3.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 53ce9a3364de0723b27d861de93bfc882f7db050 Mon Sep 17 00:00:00 2001 From: Niels de Vos <ndevos@xxxxxxxxxx> Date: Wed, 17 Jul 2013 14:53:53 +0200 Subject: fuse: readdirplus: fix dentry leak From: Niels de Vos <ndevos@xxxxxxxxxx> commit 53ce9a3364de0723b27d861de93bfc882f7db050 upstream. In case d_lookup() returns a dentry with d_inode == NULL, the dentry is not returned with dput(). This results in triggering a BUG() in shrink_dcache_for_umount_subtree(): BUG: Dentry ...{i=0,n=...} still in use (1) [unmount of fuse fuse] [SzM: need to d_drop() as well] Reported-by: Justin Clift <jclift@xxxxxxxxxx> Signed-off-by: Niels de Vos <ndevos@xxxxxxxxxx> Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxx> Tested-by: Brian Foster <bfoster@xxxxxxxxxx> Tested-by: Niels de Vos <ndevos@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/fuse/dir.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -1229,9 +1229,15 @@ static int fuse_direntplus_link(struct f name.hash = full_name_hash(name.name, name.len); dentry = d_lookup(parent, &name); - if (dentry && dentry->d_inode) { + if (dentry) { inode = dentry->d_inode; - if (get_node_id(inode) == o->nodeid) { + if (!inode) { + d_drop(dentry); + } else if (get_node_id(inode) != o->nodeid) { + err = d_invalidate(dentry); + if (err) + goto out; + } else { struct fuse_inode *fi; fi = get_fuse_inode(inode); spin_lock(&fc->lock); @@ -1244,9 +1250,6 @@ static int fuse_direntplus_link(struct f */ goto found; } - err = d_invalidate(dentry); - if (err) - goto out; dput(dentry); dentry = NULL; } Patches currently in stable-queue which might be from ndevos@xxxxxxxxxx are queue-3.10/fuse-readdirplus-fix-dentry-leak.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html