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  PHC 
Open Source and information security mailing list archives
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Fri, 14 Feb 2020 10:43:13 -0500
From:   Sasha Levin <>
Cc:     Lakshmi Ramasubramanian <>,
        Mimi Zohar <>,
        Sasha Levin <>,,
Subject: [PATCH AUTOSEL 5.5 201/542] IMA: Check IMA policy flag

From: Lakshmi Ramasubramanian <>

[ Upstream commit c5563bad88e07017e08cce1142903e501598c80c ]

process_buffer_measurement() may be called prior to IMA being
initialized (for instance, when the IMA hook is called when
a key is added to the .builtin_trusted_keys keyring), which
would result in a kernel panic.

This patch adds the check in process_buffer_measurement()
to return immediately if IMA is not initialized yet.

Signed-off-by: Lakshmi Ramasubramanian <>
Signed-off-by: Mimi Zohar <>
Signed-off-by: Sasha Levin <>
 security/integrity/ima/ima_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index d7e987baf1274..9b35db2fc777a 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -655,6 +655,9 @@ void process_buffer_measurement(const void *buf, int size,
 	int action = 0;
 	u32 secid;
+	if (!ima_policy_flag)
+		return;
 	 * Both LSM hooks and auxilary based buffer measurements are
 	 * based on policy.  To avoid code duplication, differentiate

Powered by blists - more mailing lists