Patch "coredump: accept any write method" has been added to the 4.0-stable tree

Patch "coredump: accept any write method" has been added to the 4.0-stable tree

[gregkh]

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

    coredump: accept any write method

to the 4.0-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:
     coredump-accept-any-write-method.patch
and it can be found in the queue-4.0 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 86cc05840a0da1afcb6b8151b53f3b606457c91b Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 3 Apr 2015 15:23:17 -0400
Subject: coredump: accept any write method

From: Al Viro <viro@zeniv.linux.org.uk>

commit 86cc05840a0da1afcb6b8151b53f3b606457c91b upstream.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/coredump.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -657,7 +657,7 @@ void do_coredump(const siginfo_t *siginf
 		 */
 		if (!uid_eq(inode->i_uid, current_fsuid()))
 			goto close_fail;
-		if (!cprm.file->f_op->write)
+		if (!(cprm.file->f_mode & FMODE_CAN_WRITE))
 			goto close_fail;
 		if (do_truncate(cprm.file->f_path.dentry, 0, 0, cprm.file))
 			goto close_fail;


Patches currently in stable-queue which might be from viro@zeniv.linux.org.uk are

queue-4.0/path_openat-fix-double-fput.patch
queue-4.0/coredump-accept-any-write-method.patch