Patch "ovl: use O_LARGEFILE in ovl_copy_up()" has been added to the 4.1-stable tree
Subsystems (2)
This is a note to let you know that I've just added the patch titled
ovl: use O_LARGEFILE in ovl_copy_up()
to the 4.1-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:
ovl-use-o_largefile-in-ovl_copy_up.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From
0480334fa60488d12ae101a02d7d9e1a3d03d7ddMon Sep 17 00:00:00 2001
From: David Howells <[email protected]>
Date: Fri, 18 Sep 2015 11:45:12 +0100
Subject: ovl: use O_LARGEFILE in ovl_copy_up()
From: David Howells <[email protected]>
commit 0480334fa60488d12ae101a02d7d9e1a3d03d7dd upstream.
Open the lower file with O_LARGEFILE in ovl_copy_up().
Pass O_LARGEFILE unconditionally in ovl_copy_up_data() as it's purely for catching 32-bit userspace dealing with a file large enough that it'll be mishandled if the application isn't aware that there might be an integer overflow. Inside the kernel, there shouldn't be any problems.
--- fs/overlayfs/copy_up.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
fs/overlayfs/copy_up.c +2 -2
@@ -81,11 +81,11 @@ static int ovl_copy_up_data(struct pathif (len ==0 )return 0 ; - old_file =ovl_path_open (old,O_RDONLY ); + old_file =ovl_path_open (old,O_LARGEFILE |O_RDONLY );if (IS_ERR (old_file))return PTR_ERR (old_file); - new_file =ovl_path_open (new,O_WRONLY ); + new_file =ovl_path_open (new,O_LARGEFILE |O_WRONLY );if (IS_ERR (new_file)) { error =PTR_ERR (new_file); goto out_fput;
Patches currently in stable-queue which might be from [email protected] are
queue-4.1/ovl-fix-dentry-reference-leak.patch queue-4.1/ovl-use-o_largefile-in-ovl_copy_up.patch