linux-kernel - [PATCH v2 0/4] xtensa: fix {get,put}

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Message-Id: <20191012003708.22182-1-jcmvbkbc@gmail.com>
Date:   Fri, 11 Oct 2019 17:37:04 -0700
From:   Max Filippov <jcmvbkbc@...il.com>
To:     linux-xtensa@...ux-xtensa.org, Al Viro <viro@...iv.linux.org.uk>
Cc:     Chris Zankel <chris@...kel.net>, linux-kernel@...r.kernel.org,
        Max Filippov <jcmvbkbc@...il.com>
Subject: [PATCH v2 0/4] xtensa: fix {get,put}_user() for 64bit values

Hello,

this series fixes return value, out-of-bound stack access and value
truncation in xtensa implementation of {get,put}_user() for 64bit
values. It also cleans up naming of assembly parameters in
__{get,put}_user_asm and __check_align_{1,2,4}.

Changes v1->v2:
- initialize result when access_ok check fails in __get_user_check
- initialize result in __get_user_asm for unaligned access

Al Viro (1):
  xtensa: fix {get,put}_user() for 64bit values

Max Filippov (3):
  xtensa: clean up assembly arguments in uaccess macros
  xtensa: fix type conversion in __get_user_[no]check
  xtensa: initialize result in __get_user_asm for unaligned access

 arch/xtensa/include/asm/uaccess.h | 105 +++++++++++++++++-------------
 1 file changed, 60 insertions(+), 45 deletions(-)

-- 
2.20.1