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author | Colin Ian King <colin.king@canonical.com> | 2017-08-17 23:14:58 +0100 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-30 10:16:54 +0200 |
commit | 69e12f86c34a54bffba6480c22326e97c661ff2e (patch) | |
tree | fd7179d7c20fd210a74611040674ed6161832092 | |
parent | 8621be05fdb666b39483ad58df383a406c345c1a (diff) | |
download | linux-stable-69e12f86c34a54bffba6480c22326e97c661ff2e.tar.gz linux-stable-69e12f86c34a54bffba6480c22326e97c661ff2e.tar.bz2 linux-stable-69e12f86c34a54bffba6480c22326e97c661ff2e.zip |
irda: do not leak initialized list.dev to userspace
[ Upstream commit b024d949a3c24255a7ef1a470420eb478949aa4c ]
list.dev has not been initialized and so the copy_to_user is copying
data from the stack back to user space which is a potential
information leak. Fix this ensuring all of list is initialized to
zero.
Detected by CoverityScan, CID#1357894 ("Uninitialized scalar variable")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r-- | net/irda/af_irda.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c index 1cc2b7b58ab1..556e3b0f77ba 100644 --- a/net/irda/af_irda.c +++ b/net/irda/af_irda.c @@ -2251,7 +2251,7 @@ static int irda_getsockopt(struct socket *sock, int level, int optname, { struct sock *sk = sock->sk; struct irda_sock *self = irda_sk(sk); - struct irda_device_list list; + struct irda_device_list list = { 0 }; struct irda_device_info *discoveries; struct irda_ias_set * ias_opt; /* IAS get/query params */ struct ias_object * ias_obj; /* Object in IAS */ |