[0/4] FS-Cache: Miscellaneous fixes

Message

David Howells Oct. 17, 2018, 2:23 p.m. UTC

Attached are another couple of miscellaneous fixes for FS-Cache and
CacheFiles:

 (1) Fix a race between object burial in cachefiles and external rmdir.

 (2) Fix a race from a split atomic op.

 (3) Fix incomplete initialisation of cookie key space.

 (4) Fix out-of-bounds read.

The patches are tagged here:

	git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git
	fscache-fixes-20181017

and can also be found on the following branch:

	http://git.kernel.org/cgit/linux/kernel/git/dhowells/linux-fs.git/log/?h=fscache-fixes

David
---
Al Viro (1):
      cachefiles: fix the race between cachefiles_bury_object() and rmdir(2)

David Howells (1):
      fscache: Fix incomplete initialisation of inline key space

Eric Sandeen (1):
      fscache: Fix out of bound read in long cookie keys

kiran.modukuri (1):
      fscache: Fix race in fscache_op_complete() due to split atomic_sub & read


 fs/cachefiles/namei.c         |    2 +-
 fs/fscache/cookie.c           |   31 ++++++++++---------------------
 fs/fscache/internal.h         |    1 -
 fs/fscache/main.c             |    4 +---
 include/linux/fscache-cache.h |    4 ++--
 5 files changed, 14 insertions(+), 28 deletions(-)

Comments

Greg KH Oct. 18, 2018, 10:03 a.m. UTC | #1

On Wed, Oct 17, 2018 at 03:23:14PM +0100, David Howells wrote:
> 
> Attached are another couple of miscellaneous fixes for FS-Cache and
> CacheFiles:
> 
>  (1) Fix a race between object burial in cachefiles and external rmdir.
> 
>  (2) Fix a race from a split atomic op.
> 
>  (3) Fix incomplete initialisation of cookie key space.
> 
>  (4) Fix out-of-bounds read.

Patches 1, 3, and 4 are now merged, thanks.  I didn't pull from you as
patch 2 needed to be dropped according to the thread.

thanks,

greg k-h