| commit | 861aa150174135b16b8c6502baaa65f802ef8dca | |
| author | Jason Wang <jasowang@redhat.com> | |
| Thu, 21 Jun 2018 05:11:31 +0000 (21 13:11 +0800) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Sun, 22 Jul 2018 11:43:25 +0000 (22 13:43 +0200) | ||
| tree | 2d8c341e3c5d23b2acbded8c2a2cbce449d7eedd | treesnapshot (tar.gz zip) |
| parent | 4c208c55e4a3e8642d92365e9d2051985b471db1 | commitdiff |
vhost_net: validate sock before trying to put its fd
[ Upstream commit b8f1f65882f07913157c44673af7ec0b308d03eb ]
Sock will be NULL if we pass -1 to vhost_net_set_backend(), but when
we meet errors during ubuf allocation, the code does not check for
NULL before calling sockfd_put(), this will lead NULL
dereferencing. Fixing by checking sock pointer before.
Fixes: bab632d69ee4 ("vhost: vhost TX zero-copy support")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit b8f1f65882f07913157c44673af7ec0b308d03eb ]
Sock will be NULL if we pass -1 to vhost_net_set_backend(), but when
we meet errors during ubuf allocation, the code does not check for
NULL before calling sockfd_put(), this will lead NULL
dereferencing. Fixing by checking sock pointer before.
Fixes: bab632d69ee4 ("vhost: vhost TX zero-copy support")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| drivers/vhost/net.c | diffblobblamehistory |