From: Max Filippov <jcmvbkbc@gmail.com>
To: linux-xtensa@linux-xtensa.org, Al Viro <viro@zeniv.linux.org.uk>
Cc: Chris Zankel <chris@zankel.net>,
linux-kernel@vger.kernel.org, Max Filippov <jcmvbkbc@gmail.com>
Subject: [PATCH v2 0/4] xtensa: fix {get,put}_user() for 64bit values
Date: Fri, 11 Oct 2019 17:37:04 -0700 [thread overview]
Message-ID: <20191012003708.22182-1-jcmvbkbc@gmail.com> (raw)
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
next reply other threads:[~2019-10-12 0:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-12 0:37 Max Filippov [this message]
2019-10-12 0:37 ` [PATCH v2 1/4] xtensa: fix {get,put}_user() for 64bit values Max Filippov
2019-10-12 0:37 ` [PATCH v2 2/4] xtensa: clean up assembly arguments in uaccess macros Max Filippov
2019-10-12 0:37 ` [PATCH v2 3/4] xtensa: fix type conversion in __get_user_[no]check Max Filippov
2019-10-12 0:37 ` [PATCH v2 4/4] xtensa: initialize result in __get_user_asm for unaligned access Max Filippov
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