mips: copy_from_user() must zero the destination on access_ok() failure
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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@ -14,6 +14,7 @@
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/thread_info.h>
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#include <linux/string.h>
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#include <asm/asm-eva.h>
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/*
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@ -1170,6 +1171,8 @@ extern size_t __copy_in_user_eva(void *__to, const void *__from, size_t __n);
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__cu_len = __invoke_copy_from_user(__cu_to, \
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__cu_from, \
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__cu_len); \
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} else { \
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memset(__cu_to, 0, __cu_len); \
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} \
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} \
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__cu_len; \
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