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: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <1610760161-21982-1-git-send-email-LinoSanfilippo@gmx.de>
Date:   Sat, 16 Jan 2021 02:22:37 +0100
From:   Lino Sanfilippo <LinoSanfilippo@....de>
To:     peterhuewe@....de, jarkko@...nel.org
Cc:     jgg@...pe.ca, stefanb@...ux.vnet.ibm.com,
        linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org,
        LinoSanfilippo@....de, p.rosenberger@...bus.com
Subject: [PATCH 0/4] TPM fixes

This patch series fixes some flaws in the TPM code. Most importantly a
reference count issue (patch 2) and a possible NULL pointer access
(patch 3). Patch 1 fixes the error path in tpmm_chip_alloc() and is in
preparation to patch 2 which extends this function. Patch 4 introduces
a new function tpm_chip_free() which is used as a counterpart to
tpm_chip_alloc(). The main reason for this function is to hide the
internals of tpm_chip cleanup by means of multiple reference count
handling.

Lino Sanfilippo (4):
  tpm: in case of error properly cleanup in tpmm_chip_alloc
  tpm: fix reference counting for struct tpm_chip
  tpm: in tpm2_del_space check if ops pointer is still valid
  tpm: Provide a function tpm_chip_free() to free tpm chips

 drivers/char/tpm/tpm-chip.c       | 33 ++++++++++++++++++++++++++++++---
 drivers/char/tpm/tpm.h            |  1 +
 drivers/char/tpm/tpm2-space.c     |  2 +-
 drivers/char/tpm/tpm_ftpm_tee.c   |  4 ++--
 drivers/char/tpm/tpm_vtpm_proxy.c |  2 +-
 5 files changed, 35 insertions(+), 7 deletions(-)

-- 
2.7.4

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ