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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2017-12-09 17:24:24 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-19 09:09:59 +0100 |
| commit | f00f5f5598cc3a47d5846123a6d19cc9ab5942cb (patch) | |
| tree | d0615d8d0c430247124fb3eacb2720b68052bb9f | |
| parent | b19715a17b620825d7d58b11870c82621b10cd83 (diff) | |
| download | linux-stable-f00f5f5598cc3a47d5846123a6d19cc9ab5942cb.tar.gz linux-stable-f00f5f5598cc3a47d5846123a6d19cc9ab5942cb.tar.bz2 linux-stable-f00f5f5598cc3a47d5846123a6d19cc9ab5942cb.zip | |
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>
| -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))) { |