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Groups > linux.kernel > #1305492
| From | Peter Hurley <peter@hurleysoftware.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 13/15] tty: audit: Check audit enable first |
| Date | 2016-01-10 08:00 +0100 |
| Message-ID | <qPi8P-Fk-27@gated-at.bofh.it> (permalink) |
| References | <qPgql-84a-1@gated-at.bofh.it> <qPi8O-Fk-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Audit is unlikely to be enabled; check first to exit asap. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> --- drivers/tty/tty_audit.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/tty/tty_audit.c b/drivers/tty/tty_audit.c index 6e33e41..269e41f 100644 --- a/drivers/tty/tty_audit.c +++ b/drivers/tty/tty_audit.c @@ -211,6 +211,10 @@ void tty_audit_add_data(struct tty_struct *tty, const void *data, size_t size) unsigned int audit_tty; dev_t dev; + audit_tty = READ_ONCE(current->signal->audit_tty); + if (~audit_tty & AUDIT_TTY_ENABLE) + return; + if (unlikely(size == 0)) return; @@ -218,9 +222,6 @@ void tty_audit_add_data(struct tty_struct *tty, const void *data, size_t size) && tty->driver->subtype == PTY_TYPE_MASTER) return; - audit_tty = READ_ONCE(current->signal->audit_tty); - if (~audit_tty & AUDIT_TTY_ENABLE) - return; if ((~audit_tty & AUDIT_TTY_LOG_PASSWD) && icanon && !L_ECHO(tty)) return; -- 2.7.0
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[RESEND][PATCH 00/15] Rework tty audit Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[RESEND][PATCH 11/15] tty: audit: Remove tty_audit_buf reference counting Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[RESEND][PATCH 15/15] tty: audit: Poison tty_audit_buf while process exits Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[RESEND][PATCH 02/15] tty: audit: Never audit packet mode Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[RESEND][PATCH 03/15] tty: audit: Remove icanon mode from call chain Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[RESEND][PATCH 09/15] tty: audit: Handle tty audit enable atomically Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[RESEND][PATCH 04/15] tty: audit: Defer audit buffer association Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[RESEND][PATCH 06/15] tty: audit: Ignore current association for audit push Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
Re: [RESEND][PATCH 06/15] tty: audit: Ignore current association for audit push kbuild test robot <lkp@intel.com> - 2016-01-10 06:40 +0100
Re: [RESEND][PATCH 06/15] tty: audit: Ignore current association for audit push Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:10 +0100
[RESEND][PATCH 14/15] tty: audit: Always push audit buffer before TIOCSTI Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[RESEND][PATCH 05/15] tty: audit: Take siglock directly Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[RESEND][PATCH 13/15] tty: audit: Check audit enable first Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[RESEND][PATCH 12/15] tty: audit: Simplify first-use allocation Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[RESEND][PATCH 01/15] tty: audit: Early-out pty master reads earlier Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[RESEND][PATCH 08/15] tty: audit: Track tty association with dev_t Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[RESEND][PATCH 07/15] tty: audit: Combine push functions Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[RESEND][PATCH 10/15] tty: audit: Remove false memory optimization Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 06:10 +0100
[PATCH v2 12/15] tty: audit: Simplify first-use allocation Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:00 +0100
[PATCH v2 11/15] tty: audit: Remove tty_audit_buf reference counting Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:00 +0100
[PATCH v2 00/15] Rework tty audit Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:00 +0100
[PATCH v2 02/15] tty: audit: Never audit packet mode Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:00 +0100
[PATCH v2 15/15] tty: audit: Poison tty_audit_buf while process exits Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:00 +0100
[PATCH v2 10/15] tty: audit: Remove false memory optimization Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:00 +0100
[PATCH v2 09/15] tty: audit: Handle tty audit enable atomically Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:00 +0100
[PATCH v2 14/15] tty: audit: Always push audit buffer before TIOCSTI Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:00 +0100
[PATCH v2 13/15] tty: audit: Check audit enable first Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:00 +0100
[PATCH v2 01/15] tty: audit: Early-out pty master reads earlier Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:00 +0100
[PATCH v2 08/15] tty: audit: Track tty association with dev_t Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:00 +0100
[PATCH v2 04/15] tty: audit: Defer audit buffer association Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:10 +0100
[PATCH v2 03/15] tty: audit: Remove icanon mode from call chain Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:10 +0100
[PATCH v2 05/15] tty: audit: Take siglock directly Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:10 +0100
[PATCH v2 07/15] tty: audit: Combine push functions Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:10 +0100
[PATCH v2 06/15] tty: audit: Ignore current association for audit push Peter Hurley <peter@hurleysoftware.com> - 2016-01-10 08:10 +0100
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