linux-kernel - [PATCH v2] audit: record fanotify event regardless of presence of rules

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <6a18a0b1af0ccca1fc56a8e82f02d5e4ab36149c.1754063834.git.rgb@redhat.com>
Date: Wed,  6 Aug 2025 17:04:07 -0400
From: Richard Guy Briggs <rgb@...hat.com>
To: Linux-Audit Mailing List <linux-audit@...ts.linux-audit.osci.io>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-fsdevel@...r.kernel.org,
	Linux Kernel Audit Mailing List <audit@...r.kernel.org>
Cc: Paul Moore <paul@...l-moore.com>,
	Eric Paris <eparis@...isplace.org>,
	Steve Grubb <sgrubb@...hat.com>,
	Richard Guy Briggs <rgb@...hat.com>,
	Jan Kara <jack@...e.cz>,
	Amir Goldstein <amir73il@...il.com>
Subject: [PATCH v2] audit: record fanotify event regardless of presence of rules

When no audit rules are in place, fanotify event results are
unconditionally dropped due to an explicit check for the existence of
any audit rules.  Given this is a report from another security
sub-system, allow it to be recorded regardless of the existence of any
audit rules.

To test, install and run the fapolicyd daemon with default config.  Then
as an unprivileged user, create and run a very simple binary that should
be denied.  Then check for an event with
	ausearch -m FANOTIFY -ts recent

Link: https://issues.redhat.com/browse/RHEL-9065
Signed-off-by: Richard Guy Briggs <rgb@...hat.com>
---
changelog:
v2
- re-add audit_enabled check
---
 include/linux/audit.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/audit.h b/include/linux/audit.h
index a394614ccd0b..e3f06eba9c6e 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -527,7 +527,7 @@ static inline void audit_log_kern_module(const char *name)
 
 static inline void audit_fanotify(u32 response, struct fanotify_response_info_audit_rule *friar)
 {
-	if (!audit_dummy_context())
+	if (audit_enabled)
 		__audit_fanotify(response, friar);
 }
 
-- 
2.43.5