Patch "orangefs: fix buffer size mis-match between kernel space and user space." has been added to the 4.10-stable tree
Subsystems (2)
This is a note to let you know that I've just added the patch titled
orangefs: fix buffer size mis-match between kernel space and user space.
to the 4.10-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:
orangefs-fix-buffer-size-mis-match-between-kernel-space-and-user-space.patch
and it can be found in the queue-4.10 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
eb68d0324dc4d88ab0d6159bdcd98c247a3a8954Mon Sep 17 00:00:00 2001
From: Mike Marshall <[email protected]>
Date: Tue, 7 Feb 2017 12:41:02 -0500
Subject: orangefs: fix buffer size mis-match between kernel space and user space.
From: Mike Marshall <[email protected]>
commit eb68d0324dc4d88ab0d6159bdcd98c247a3a8954 upstream.
The deamon through which the kernel module communicates with the userspace part of Orangefs, the "client-core", sends initialization data to the kernel module with ioctl. The initialization data was built by the client-core in a 2k buffer and copy_from_user'd into a 1k buffer in the kernel module. When more than 1k of initialization data needed to be sent, some was lost, reducing the usability of the control by which debug levels are set. This patch sets the kernel side buffer to 2K to match the userspace side...
--- fs/orangefs/orangefs-dev-proto.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
fs/orangefs/orangefs-dev-proto.h +1 -2
@@ -50,8 +50,7 @@* Misc constants. Please retain them as multiples of 8! * Otherwise 32-64 bit interactions will be messed up :) */ -#define ORANGEFS_MAX_DEBUG_STRING_LEN 0x00000400 -#define ORANGEFS_MAX_DEBUG_ARRAY_LEN 0x00000800 +#define ORANGEFS_MAX_DEBUG_STRING_LEN 0x00000800/* * The maximum number of directory entries in a single request is 96.
Patches currently in stable-queue which might be from [email protected] are
queue-4.10/orangefs-fix-buffer-size-mis-match-between-kernel-space-and-user-space.patch queue-4.10/orangefs-dan-carpenter-influenced-cleanups.patch