Patch "cifs: fix leak in FSCTL_ENUM_SNAPS response handling" has been added to the 4.9-stable tree

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

cifs: fix leak in FSCTL_ENUM_SNAPS response handling

to the 4.9-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:
cifs-fix-leak-in-fsctl_enum_snaps-response-handling.patch
and it can be found in the queue-4.9 subdirectory.

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

From: David Disseldorp <[email protected]>
Date: Wed, 3 May 2017 17:39:09 +0200
Subject: cifs: fix leak in FSCTL_ENUM_SNAPS response handling

From: David Disseldorp <[email protected]>

commit 0e5c795592930d51fd30d53a2e7b73cba022a29b upstream.

The server may respond with success, and an output buffer less than sizeof(struct smb_snapshot_array) in length. Do not leak the output buffer in this case.

---
 fs/cifs/smb2ops.c |    1 +
 1 file changed, 1 insertion(+)

@@ -924,6 +924,7 @@ smb3_enum_snapshots(const unsigned int x
 		}
 		if (snapshot_in.snapshot_array_size < sizeof(struct smb_snapshot_array)) {
 			rc = -ERANGE;
+			kfree(retbuf);
 			return rc;
 		}
 

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

queue-4.9/cifs-fix-cifs_ioc_get_mnt_info-oops.patch queue-4.9/target-fileio-fix-zero-length-read-and-write-handling.patch queue-4.9/cifs-fix-cifs_enumerate_snapshots-oops.patch queue-4.9/cifs-fix-leak-in-fsctl_enum_snaps-response-handling.patch