From: Chris Wright <chrisw@sous-sol.org>
Date: Mon, 5 May 2008 20:50:24 +0000 (-0700)
Subject: dccp: return -EINVAL on invalid feature length
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=19443178fbfbf40db15c86012fc37df1a44ab857;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

dccp: return -EINVAL on invalid feature length

dccp_feat_change() validates length and on error is returning 1.
This happens to work since call chain is checking for 0 == success,
but this is returned to userspace, so make it a real error value.

Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/dccp/feat.c b/net/dccp/feat.c
index 4a4f6ce4498d..933a0ecf8d46 100644
--- a/net/dccp/feat.c
+++ b/net/dccp/feat.c
@@ -32,7 +32,7 @@ int dccp_feat_change(struct dccp_minisock *dmsk, u8 type, u8 feature,
 
 	if (len > 3) {
 		DCCP_WARN("invalid length %d\n", len);
-		return 1;
+		return -EINVAL;
 	}
 	/* XXX add further sanity checks */