lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20190719143222.16058-1-lhenriques@suse.com>
Date:   Fri, 19 Jul 2019 15:32:18 +0100
From:   Luis Henriques <lhenriques@...e.com>
To:     Ilya Dryomov <idryomov@...il.com>,
        Jeff Layton <jlayton@...nel.org>, Sage Weil <sage@...hat.com>
Cc:     ceph-devel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Luis Henriques <lhenriques@...e.com>
Subject: [PATCH 0/4] Sleeping functions in invalid context bug fixes

Hi,

I'm sending three "sleeping function called from invalid context" bug
fixes that I had on my TODO for a while.  All of them are ceph_buffer_put
related, and all the fixes follow the same pattern: delay the operation
until the ci->i_ceph_lock is released.

The first patch simply allows ceph_buffer_put to receive a NULL buffer so
that the NULL check doesn't need to be performed in all the other patches.
IOW, it's not really required, just convenient.

(Note: maybe these patches should all be tagged for stable.)

Luis Henriques (4):
  libceph: allow ceph_buffer_put() to receive a NULL ceph_buffer
  ceph: fix buffer free while holding i_ceph_lock in __ceph_setxattr()
  ceph: fix buffer free while holding i_ceph_lock in
    __ceph_build_xattrs_blob()
  ceph: fix buffer free while holding i_ceph_lock in fill_inode()

 fs/ceph/caps.c              |  5 ++++-
 fs/ceph/inode.c             |  7 ++++---
 fs/ceph/snap.c              |  4 +++-
 fs/ceph/super.h             |  2 +-
 fs/ceph/xattr.c             | 19 ++++++++++++++-----
 include/linux/ceph/buffer.h |  3 ++-
 6 files changed, 28 insertions(+), 12 deletions(-)

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ