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| author | Vasiliy Kulikov <segoon@openwall.com> | 2011-02-14 13:54:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-04-14 16:53:01 -0700 |
| commit | a578aadd26d69db27e80f01fbb88a7b91d4c7500 (patch) | |
| tree | 3815f1a52e4c44a890211d64f358f8ee0dd9b771 /net | |
| parent | eb73bca39f4f5f2d5285dcb1dc1aa35433d89cef (diff) | |
| download | kernel-common-a578aadd26d69db27e80f01fbb88a7b91d4c7500.tar.gz kernel-common-a578aadd26d69db27e80f01fbb88a7b91d4c7500.tar.bz2 kernel-common-a578aadd26d69db27e80f01fbb88a7b91d4c7500.zip | |
Bluetooth: sco: fix information leak to userspace
commit c4c896e1471aec3b004a693c689f60be3b17ac86 upstream.
struct sco_conninfo has one padding byte in the end. Local variable
cinfo of type sco_conninfo is copied to userspace with this uninizialized
one byte, leading to old stack contents leak.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bluetooth/sco.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index 66cab63e76e3..dc009794118d 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -701,6 +701,7 @@ static int sco_sock_getsockopt_old(struct socket *sock, int optname, char __user break; } + memset(&cinfo, 0, sizeof(cinfo)); cinfo.hci_handle = sco_pi(sk)->conn->hcon->handle; memcpy(cinfo.dev_class, sco_pi(sk)->conn->hcon->dev_class, 3); |