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| author | James Morris <james.morris@microsoft.com> | 2019-01-10 22:41:59 +0300 |
|---|---|---|
| committer | James Morris <james.morris@microsoft.com> | 2019-01-10 22:41:59 +0300 |
| commit | 49e41801b335f64610bbfd23e8f2bbaf34d46276 (patch) | |
| tree | 4fbedacd1de1bbd4054f07f93031aebcb7b7a919 /lib/strncpy_from_user.c | |
| parent | b49d564344f773d8afee982153c8493e5f2eaf38 (diff) | |
| parent | bfeffd155283772bbe78c6a05dec7c0128ee500c (diff) | |
| download | linux-49e41801b335f64610bbfd23e8f2bbaf34d46276.tar.xz | |
Merge tag 'v5.0-rc1' into next-general
Linux 5.0-rc1
Sync to pick up LSM stacking work (which is based on -rc1).
Diffstat (limited to 'lib/strncpy_from_user.c')
| -rw-r--r-- | lib/strncpy_from_user.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c index b53e1b5d80f4..58eacd41526c 100644 --- a/lib/strncpy_from_user.c +++ b/lib/strncpy_from_user.c @@ -114,10 +114,11 @@ long strncpy_from_user(char *dst, const char __user *src, long count) kasan_check_write(dst, count); check_object_size(dst, count, false); - user_access_begin(); - retval = do_strncpy_from_user(dst, src, count, max); - user_access_end(); - return retval; + if (user_access_begin(src, max)) { + retval = do_strncpy_from_user(dst, src, count, max); + user_access_end(); + return retval; + } } return -EFAULT; } |