[PATCH v2 0/4] xtensa: fix {get,put}_user() for 64bit values

From: Max Filippov
Date: Fri Oct 11 2019 - 20:37:30 EST


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(-)

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2.20.1