Artem Chernyshev d04d9a327e net: vmw_vsock: vmci: Check memcpy_from_msg() ...

[ Upstream commit 44aa5a6dba8283bfda28b1517af4de711c5652a4 ]

vmci_transport_dgram_enqueue() does not check the return value
of memcpy_from_msg().  If memcpy_from_msg() fails, it is possible that
uninitialized memory contents are sent unintentionally instead of user's
message in the datagram to the destination.  Return with an error if
memcpy_from_msg() fails.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 0f7db23a07af ("vmci_transport: switch ->enqeue_dgram, ->enqueue_stream and ->dequeue_stream to msghdr")
Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Vishnu Dasa <vdasa@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-01-18 09:26:18 +01:00

..

af_vsock_tap.c

…

af_vsock.c

vsock: Set socket state back to SS_UNCONNECTED in vsock_connect_timeout()

2022-08-25 11:11:33 +02:00

hyperv_transport.c

vsock: fix locking in vsock_shutdown()

2021-02-23 14:00:33 +01:00

Kconfig

hv_sock: implements Hyper-V transport for Virtual Sockets (AF_VSOCK)

2017-08-28 15:38:18 -07:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

virtio_transport_common.c

vhost/vsock: Use kvmalloc/kvfree for larger packets.

2022-10-26 13:17:00 +02:00

virtio_transport.c

vsock/virtio: avoid potential deadlock when vsock device remove

2021-08-26 08:37:02 -04:00

vmci_transport_notify_qstate.c

VSOCK: use TCP state constants for sk_state

2019-08-04 09:31:59 +02:00

vmci_transport_notify.c

VSOCK: use TCP state constants for sk_state

2019-08-04 09:31:59 +02:00

vmci_transport_notify.h

…

vmci_transport.c

net: vmw_vsock: vmci: Check memcpy_from_msg()

2023-01-18 09:26:18 +01:00

vmci_transport.h

…

vsock_addr.c

…