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Bluetooth: Fix l2cap_sock_setsockopt() with optname BT_RCVMTU

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commit 23bc6ab0a0912146fd674a0becc758c3162baabc upstream.

When we retrieve imtu value from userspace we should use 16 bit pointer
cast instead of 32 as it's defined that way in headers. Fixes setsockopt
calls on big-endian platforms.

Signed-off-by: Amadeusz Sławiński <amadeusz.slawinski@tieto.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
Signed-off-by: Willy Tarreau <w@1wt.eu>
This commit is contained in:
Amadeusz Sławiński
2016-07-14 10:50:23 +02:00
committed by Willy Tarreau
parent e092e4ff8d
commit 9e10c1166f
1 changed files with 1 additions and 1 deletions
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net/bluetooth/l2cap_sock.c
+1 -1
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@@ -725,7 +725,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
break;
}
if (get_user(opt, (u32 __user *) optval)) {
if (get_user(opt, (u16 __user *) optval)) {
err = -EFAULT;
break;
}