Paolo Abeni cad96d0e50 vhost_net: fix OoB on sendmsg() failure. ... commit 3c4cea8fa7 upstream. If the sendmsg() call in vhost_tx_batch() fails, both the 'batched_xdp' and 'done_idx' indexes are left unchanged. If such failure happens when batched_xdp == VHOST_NET_BATCH, the next call to vhost_net_build_xdp() will access and write memory outside the xdp buffers area. Since sendmsg() can only error with EBADFD, this change addresses the issue explicitly freeing the XDP buffers batch on error. Fixes: 0a0be13b8f ("vhost_net: batch submitting XDP buffers to underlayer sockets") Suggested-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-09-22 12:27:58 +02:00
..
iotlb.c	vhost: Fix documentation	2020-09-24 05:54:36 -04:00
Kconfig	vhost_vdpa: implement IRQ offloading in vhost_vdpa	2020-08-05 11:08:42 -04:00
Makefile
net.c	vhost_net: fix OoB on sendmsg() failure.	2021-09-22 12:27:58 +02:00
scsi.c	vhost scsi: fix error return code in vhost_scsi_set_endpoint()	2020-12-30 11:54:00 +01:00
test.c	tools/virtio: Add --reset	2020-06-22 12:34:21 -04:00
test.h	tools/virtio: Add --reset	2020-06-22 12:34:21 -04:00
vdpa.c	vhost-vdpa: Fix integer overflow in vhost_vdpa_process_iotlb_update()	2021-08-26 08:35:42 -04:00
vhost.c	vhost: Fix the calculation in vhost_overflow()	2021-08-26 08:35:42 -04:00
vhost.h	vhost: add helper to check if a vq has been setup	2020-11-15 17:30:54 -05:00
vringh.c	vringh: Use wiov->used to check for read/write desc order	2021-09-03 10:09:27 +02:00
vsock.c	vhost: allow device that does not depend on vhost worker	2020-06-04 15:36:51 -04:00