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    Subject[PATCH 08/59] CRED: Wrap task credential accesses in the tty driver
    Date
    Wrap access to task credentials so that they can be separated more easily from
    the task_struct during the introduction of COW creds.

    Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().

    Change some task->e?[ug]id to task_e?[ug]id(). In some places it makes more
    sense to use RCU directly rather than a convenient wrapper; these will be
    addressed by later patches.

    Signed-off-by: David Howells <dhowells@redhat.com>
    Reviewed-by: James Morris <jmorris@namei.org>
    Acked-by: Serge Hallyn <serue@us.ibm.com>
    Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
    ---

    drivers/char/tty_audit.c | 6 ++++--
    1 files changed, 4 insertions(+), 2 deletions(-)


    diff --git a/drivers/char/tty_audit.c b/drivers/char/tty_audit.c
    index 3582f43..570d337 100644
    --- a/drivers/char/tty_audit.c
    +++ b/drivers/char/tty_audit.c
    @@ -86,10 +86,12 @@ static void tty_audit_buf_push(struct task_struct *tsk, uid_t loginuid,
    ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_TTY);
    if (ab) {
    char name[sizeof(tsk->comm)];
    + uid_t uid = task_uid(tsk);

    audit_log_format(ab, "tty pid=%u uid=%u auid=%u ses=%u "
    - "major=%d minor=%d comm=", tsk->pid, tsk->uid,
    - loginuid, sessionid, buf->major, buf->minor);
    + "major=%d minor=%d comm=",
    + tsk->pid, uid, loginuid, sessionid,
    + buf->major, buf->minor);
    get_task_comm(name, tsk);
    audit_log_untrustedstring(ab, name);
    audit_log_format(ab, " data=");


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