From: Peter Hurley peter@hurleysoftware.com
[ Upstream commit 6b2a3d628aa752f0ab825fc6d4d07b09e274d1c1 ]
The data to audit/record is in the 'from' buffer (ie., the input read buffer).
Fixes: 72586c6061ab ("n_tty: Fix auditing support for cannonical mode") Cc: stable stable@vger.kernel.org # 4.1+ Cc: Miloslav Trmač mitr@redhat.com Signed-off-by: Peter Hurley peter@hurleysoftware.com Acked-by: Laura Abbott labbott@fedoraproject.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/n_tty.c | 2 +- drivers/tty/tty_audit.c | 2 +- include/linux/tty.h | 6 +++--- 3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 0ed99ad74bee..f53682bb30cf 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -195,7 +195,7 @@ static inline int tty_copy_to_user(struct tty_struct *tty, { struct n_tty_data *ldata = tty->disc_data;
- tty_audit_add_data(tty, to, n, ldata->icanon); + tty_audit_add_data(tty, from, n, ldata->icanon); return copy_to_user(to, from, n); }
diff --git a/drivers/tty/tty_audit.c b/drivers/tty/tty_audit.c index 90ca082935f6..3d245cd3d8e6 100644 --- a/drivers/tty/tty_audit.c +++ b/drivers/tty/tty_audit.c @@ -265,7 +265,7 @@ static struct tty_audit_buf *tty_audit_buf_get(struct tty_struct *tty, * * Audit @data of @size from @tty, if necessary. */ -void tty_audit_add_data(struct tty_struct *tty, unsigned char *data, +void tty_audit_add_data(struct tty_struct *tty, const void *data, size_t size, unsigned icanon) { struct tty_audit_buf *buf; diff --git a/include/linux/tty.h b/include/linux/tty.h index 4858a3b79b7a..47d0bfa536e7 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -587,7 +587,7 @@ extern void n_tty_inherit_ops(struct tty_ldisc_ops *ops);
/* tty_audit.c */ #ifdef CONFIG_AUDIT -extern void tty_audit_add_data(struct tty_struct *tty, unsigned char *data, +extern void tty_audit_add_data(struct tty_struct *tty, const void *data, size_t size, unsigned icanon); extern void tty_audit_exit(void); extern void tty_audit_fork(struct signal_struct *sig); @@ -595,8 +595,8 @@ extern void tty_audit_tiocsti(struct tty_struct *tty, char ch); extern void tty_audit_push(struct tty_struct *tty); extern int tty_audit_push_current(void); #else -static inline void tty_audit_add_data(struct tty_struct *tty, - unsigned char *data, size_t size, unsigned icanon) +static inline void tty_audit_add_data(struct tty_struct *tty, const void *data, + size_t size, unsigned icanon) { } static inline void tty_audit_tiocsti(struct tty_struct *tty, char ch)