linux-kernel - [PATCH 0/1] smb3: Memory leak/page refcount overflow fix

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Date:   Tue, 28 Feb 2023 22:38:37 +0000
From:   David Howells <dhowells@...hat.com>
To:     Steve French <smfrench@...il.com>
Cc:     David Howells <dhowells@...hat.com>,
        Shyam Prasad N <nspmangalore@...il.com>,
        Rohith Surabattula <rohiths.msft@...il.com>,
        Tom Talpey <tom@...pey.com>,
        Stefan Metzmacher <metze@...ba.org>,
        Jeff Layton <jlayton@...nel.org>, linux-cifs@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 0/1] smb3: Memory leak/page refcount overflow fix

Hi Steve,

Here's another fix patch for you.  It fixes a leak of the pages extracted
for direct I/O.  This was causing the page refcount to overflow and become
negative and then try_grab_page() would always fail on it.

I've pushed the patch here also:

	https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=iov-cifs

David

David Howells (1):
  cifs: Fix memory leak in direct I/O

 fs/cifs/file.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)