dlm: Fix kernel memory disclosure
Clear the 'unused' field and the uninitialized padding in 'lksb' to avoid leaking memory to userland in copy_result_to_user(). Signed-off-by: Vlad Tsyrklevich <vlad@tsyrklevich.net> Signed-off-by: David Teigland <teigland@redhat.com>
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@ -123,6 +123,8 @@ static void compat_input(struct dlm_write_request *kb,
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static void compat_output(struct dlm_lock_result *res,
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struct dlm_lock_result32 *res32)
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{
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memset(res32, 0, sizeof(*res32));
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res32->version[0] = res->version[0];
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res32->version[1] = res->version[1];
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res32->version[2] = res->version[2];
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