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  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:	Tue, 6 Oct 2015 15:23:46 -0400
From:	Chris Metcalf <>
To:	Michael Cree <>,
	Matt Turner <>,
	Michael Ellerman <>,
	Yoshinori Sato <>,
	Alexey Dobriyan <>,
	"Rasmus Villemoes" <>,
	Ingo Molnar <>,
	"Linus Torvalds" <>,
	Peter Zijlstra <>,
	Thomas Gleixner <>,
	"H. Peter Anvin" <>, Borislav Petkov <>,
	Linux Kernel Mailing List <>
CC:	Chris Metcalf <>
Subject: [PATCH v2 0/3] various strscpy fixes

This patch series fixes up a couple of architecture issues where
strscpy wasn't configured correctly (missing on h8300, duplicating
local and asm-generic copies on powerpc and tile).

It also adds a use of zero_bytemask() to the final store for
strscpy to avoid writing uninitialized data to the destination.
However, to make this work we had to add support for zero_bytemask()
to the two architectures that didn't have it (alpha and tile),
because they were providing their own local copies, but didn't
provide the zero_bytemask() that was previously only required
when building with CONFIG_DCACHE_WORD_ACCESS.

The series can be pulled from:

  git:// strscpy

Chris Metcalf (3):
  word-at-a-time.h: fix some Kbuild files
  word-at-a-time.h: support zero_bytemask() on alpha and tile
  strscpy: zero any trailing garbage bytes in the destination

 arch/alpha/include/asm/word-at-a-time.h | 2 ++
 arch/h8300/include/asm/Kbuild           | 1 +
 arch/powerpc/include/asm/Kbuild         | 1 -
 arch/tile/include/asm/Kbuild            | 1 -
 arch/tile/include/asm/word-at-a-time.h  | 8 +++++++-
 lib/string.c                            | 3 ++-
 6 files changed, 12 insertions(+), 4 deletions(-)


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists