linux-kernel - [PATCH 0/6] mm: audit find

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]

Date:	Sat, 19 Apr 2014 19:26:25 -0700
From:	Davidlohr Bueso <davidlohr@...com>
To:	akpm@...ux-foundation.org
Cc:	zeus@....org, aswin@...com, davidlohr@...com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/6] mm: audit find_vma() callers

Ensure find_vma() callers do so with the mmap_sem held. 

I'm sure there are a few more places left to fix, but 
this is a pretty good start. Following the call chain,
some users become all tangled up, but I believe these
fixes are correct. Furthermore, the bulk of the callers
of find_vma are in a lot of functions where it is well
known that the mmap_sem is taken way before, such as
get_unmapped_area() family.

Please note that none of the patches are tested.

Thanks!

  blackfin/ptrace: call find_vma with the mmap_sem held
  m68k: call find_vma with the mmap_sem held in sys_cacheflush()
  mips: call find_vma with the mmap_sem held
  arc: call find_vma with the mmap_sem held
  drivers/misc/sgi-gru/grufault.c: call find_vma with the mmap_sem held
  drm/exynos: call find_vma with the mmap_sem held

 arch/arc/kernel/troubleshoot.c          |  7 ++++---
 arch/blackfin/kernel/ptrace.c           |  8 ++++++--
 arch/m68k/kernel/sys_m68k.c             | 18 ++++++++++++------
 arch/mips/kernel/traps.c                |  2 ++
 arch/mips/mm/c-octeon.c                 |  2 ++
 drivers/gpu/drm/exynos/exynos_drm_g2d.c |  6 ++++++
 drivers/misc/sgi-gru/grufault.c         | 13 +++++++++----
 7 files changed, 41 insertions(+), 15 deletions(-)

-- 
1.8.1.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/