On Wed, Dec 19, 2012 at 07:53:36AM -0800, Nitin Gupta wrote:

On 12/19/2012 07:08 AM, Greg KH wrote:

quoted

On Tue, Dec 18, 2012 at 11:21:28PM -0800, Nitin Gupta wrote:

quoted

On 12/18/2012 07:49 PM, Greg KH wrote:

quoted

On Tue, Dec 18, 2012 at 01:12:05PM -0800, Nitin Gupta wrote:

quoted

On Tue, Dec 11, 2012 at 10:27 AM, Greg KH [off-list ref] wrote:

quoted

On Thu, Nov 29, 2012 at 10:45:09PM -0800, Nitin Gupta wrote:

quoted

Fixes a bug introduced by commit c8f2f0db1 ("zram: Fix handling
of incompressible pages") which caused invalid memory references
during disk write. Invalid references could occur in two cases:
 - Incoming data expands on compression: In this case, reference was
made to kunmap()'ed bio page.
 - Partial (non PAGE_SIZE) write with incompressible data: In this
case, reference was made to a kfree()'ed buffer.

Fixes bug 50081:
https://bugzilla.kernel.org/show_bug.cgi?id=50081

Upstream commit ID: c8f2f0d: zram: Fix handling of incompressible pages
Apply to versions: 3.6.5, 3.6.6, 3.6.7, 3.6.8

Cc: <redacted> # staging-next: 37b51fd: zram: factor-out
                              # zram_decompress_page() function
Signed-off-by: Nitin Gupta <redacted>
Reported-by: Mihail Kasadjikov <redacted>
Reported-by: Tomas M <redacted>
Reviewed-by: Minchan Kim <minchan@kernel.org>
---
 drivers/staging/zram/zram_drv.c |   39 ++++++++++++++++++++++++---------------
 1 file changed, 24 insertions(+), 15 deletions(-)

This patch fails to apply to 3.6.10:

patching file drivers/staging/zram/zram_drv.c
Hunk #1 succeeded at 282 (offset 17 lines).
Hunk #2 FAILED at 286.
Hunk #3 succeeded at 319 (offset 17 lines).
Hunk #4 succeeded at 340 (offset 17 lines).
Hunk #5 succeeded at 353 (offset 17 lines).
Hunk #6 succeeded at 368 (offset 17 lines).
Hunk #7 succeeded at 385 (offset 17 lines).
1 out of 7 hunks FAILED -- saving rejects to file drivers/staging/zram/zram_drv.c.rej

Please redo this patch and resend it if you wish for it to be applied to
the 3.6-stable tree.

Please apply this patch to stable tree asap.

3.6 is now end-of-life, there will not be any more releases for that
kernel series anymore, sorry.

Then please apply to 3.7.

That is impossible to do so, for the obvious reason.

I meant to include it in whatever 3.7.x is released in future. Or put it
in staging, so it may eventually make it to mainline (by 3.8?).

{sigh}

Please think for a moment for how it would be impossible for me to add
this patch to either the 3.7-stable tree, or the 3.8 tree, _again_.

greg k-h