[PATCH v1 0/6] Harden a few virtio bits

Alexander Shishkin
2023-01-19T18:12:40Z

Hi,

Here are 6 patches that harden console, net and 9p drivers against
various malicious host input as well as close a bounds check bypass
in the split virtio ring.

Changes since previous version:
* Added Christian's R-B to 3/6
* Added a speculation fix per Michael's comment on the cover letter
* CC'ing lkml

Alexander Shishkin (3):
virtio console: Harden control message handling
virtio_net: Guard against buffer length overflow in
xdp_linearize_page()
virtio_ring: Prevent bounds check bypass on descriptor index

Andi Kleen (3):
virtio console: Harden multiport against invalid host input
virtio console: Harden port adding
virtio 9p: Fix an overflow

drivers/char/virtio_console.c | 19 ++++++++++++-------
drivers/net/virtio_net.c | 4 +++-
drivers/virtio/virtio_ring.c | 3 +++
net/9p/trans_virtio.c | 2 +-
4 files changed, 19 insertions(+), 9 deletions(-)

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2.39.0