Commit 98953c4c authored by Amadeusz Sławiński's avatar Amadeusz Sławiński Committed by Sasha Levin

Bluetooth: Fix l2cap_sock_setsockopt() with optname BT_RCVMTU

[ Upstream commit 23bc6ab0 ]

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: default avatarAmadeusz Sławiński <amadeusz.slawinski@tieto.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
parent 5436aa6c
...@@ -927,7 +927,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ...@@ -927,7 +927,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
break; break;
} }
if (get_user(opt, (u32 __user *) optval)) { if (get_user(opt, (u16 __user *) optval)) {
err = -EFAULT; err = -EFAULT;
break; break;
} }
......
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