Patch "eCryptfs: use after free in ecryptfs_release_messaging()" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

eCryptfs: use after free in ecryptfs_release_messaging()

to the 4.4-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:
ecryptfs-use-after-free-in-ecryptfs_release_messaging.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Dan Carpenter <[email protected]>
Date: Tue, 22 Aug 2017 23:41:28 +0300
Subject: eCryptfs: use after free in ecryptfs_release_messaging()

From: Dan Carpenter <[email protected]>

commit db86be3a12d0b6e5c5b51c2ab2a48f06329cb590 upstream.

We're freeing the list iterator so we should be using the _safe() version of hlist_for_each_entry().

---
 fs/ecryptfs/messaging.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

@@ -442,15 +442,16 @@ void ecryptfs_release_messaging(void)
 	}
 	if (ecryptfs_daemon_hash) {
 		struct ecryptfs_daemon *daemon;
+		struct hlist_node *n;
 		int i;
 
 		mutex_lock(&ecryptfs_daemon_hash_mux);
 		for (i = 0; i < (1 << ecryptfs_hash_bits); i++) {
 			int rc;
 
-			hlist_for_each_entry(daemon,
-					     &ecryptfs_daemon_hash[i],
-					     euid_chain) {
+			hlist_for_each_entry_safe(daemon, n,
+						  &ecryptfs_daemon_hash[i],
+						  euid_chain) {
 				rc = ecryptfs_exorcise_daemon(daemon);
 				if (rc)
 					printk(KERN_ERR "%s: Error whilst "

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/ecryptfs-use-after-free-in-ecryptfs_release_messaging.patch