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Commit 3b040cd6 authored by Xiaoke Wang's avatar Xiaoke Wang Committed by Pavel Machek
Browse files

integrity: check the return value of audit_log_start() 



commit 83230351c523b04ff8a029a4bdf97d881ecb96fc upstream.

audit_log_start() returns audit_buffer pointer on success or NULL on
error, so it is better to check the return value of it.

Fixes: 3323eec9 ("integrity: IMA as an integrity service provider")
Signed-off-by: default avatarXiaoke Wang <xkernel.wang@foxmail.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: default avatarPaul Moore <paul@paul-moore.com>
Signed-off-by: default avatarMimi Zohar <zohar@linux.ibm.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6d46b2a0

security/integrity/integrity_audit.c

+2 −0
Original line number Diff line number Diff line
@@ -39,6 +39,8 @@ void integrity_audit_msg(int audit_msgno, struct inode *inode, 
		return;



	ab = audit_log_start(current->audit_context, GFP_KERNEL, audit_msgno);

	if (!ab)

		return;

	audit_log_format(ab, "pid=%d uid=%u auid=%u ses=%u",

			 task_pid_nr(current),

			 from_kuid(&init_user_ns, current_cred()->uid),