From: Steve Grubb <sgrubb@redhat.com>
Date: Tue, 10 May 2005 17:53:07 +0000 (+0100)
Subject: AUDIT: Fix reported length of audit messages.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8c5aa40c94ef8bb7f7da95ecd5942e2d20fc3c9d;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

AUDIT: Fix reported length of audit messages.

We were setting nlmsg_len to skb->len, but we should be subtracting
the size of the header.

From: Steve Grubb <sgrubb@redhat.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
---

diff --git a/kernel/audit.c b/kernel/audit.c
index b86007da8a3f..2ddd1a2b66d0 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -488,7 +488,7 @@ static inline int audit_log_drain(struct audit_buffer *ab)
 
 		if (audit_pid) {
 			struct nlmsghdr *nlh = (struct nlmsghdr *)skb->data;
-			nlh->nlmsg_len = skb->len;
+			nlh->nlmsg_len = skb->len - sizeof(*nlh);
 			skb_get(skb); /* because netlink_* frees */
 			retval = netlink_unicast(audit_sock, skb, audit_pid,
 						 MSG_DONTWAIT);