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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2017-12-09 19:24:24 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-19 10:42:56 +0300 |
| commit | 0ced0c46b4181f5df41b0950963f02591198800a (patch) | |
| tree | 4699a48691efe8fec9f08c703a1860f1f39f2ddd /lib | |
| parent | 4117e8971923846e5723dc5b9c29f838be52ef88 (diff) | |
| download | linux-0ced0c46b4181f5df41b0950963f02591198800a.tar.xz | |
Fix misannotated out-of-line _copy_to_user()
[ Upstream commit a0e94598e6b6c0d1df6a5fa14eb7c767ca817a20 ]
Destination is a kernel pointer and source - a userland one
in _copy_from_user(); _copy_to_user() is the other way round.
Fixes: d597580d37377 ("generic ...copy_..._user primitives")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/usercopy.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/usercopy.c b/lib/usercopy.c index 15e2e6fb060e..3744b2a8e591 100644 --- a/lib/usercopy.c +++ b/lib/usercopy.c @@ -20,7 +20,7 @@ EXPORT_SYMBOL(_copy_from_user); #endif #ifndef INLINE_COPY_TO_USER -unsigned long _copy_to_user(void *to, const void __user *from, unsigned long n) +unsigned long _copy_to_user(void __user *to, const void *from, unsigned long n) { might_fault(); if (likely(access_ok(VERIFY_WRITE, to, n))) { |