diff options
| author | Jason Wang <jasowang@redhat.com> | 2024-01-02 11:29:01 +0800 |
|---|---|---|
| committer | Michael Tokarev <mjt@tls.msk.ru> | 2024-01-26 16:20:07 +0300 |
| commit | 415f21c723320af3f694efffb6fc47484cc03fb0 (patch) | |
| tree | 60578690b87b4b0218159bf13cfcf7a10e9edab4 /block | |
| parent | 06e11b7589bb6a0d8a004949e829bebcd7a00ec5 (diff) | |
virtio-net: correctly copy vnet header when flushing TX
When HASH_REPORT is negotiated, the guest_hdr_len might be larger than
the size of the mergeable rx buffer header. Using
virtio_net_hdr_mrg_rxbuf during the header swap might lead a stack
overflow in this case. Fixing this by using virtio_net_hdr_v1_hash
instead.
Reported-by: Xiao Lei <leixiao.nop@zju.edu.cn>
Cc: Yuri Benditovich <yuri.benditovich@daynix.com>
Cc: qemu-stable@nongnu.org
Cc: Mauro Matteo Cascella <mcascell@redhat.com>
Fixes: CVE-2023-6693
Fixes: e22f0603fb2f ("virtio-net: reference implementation of hash report")
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Jason Wang <jasowang@redhat.com>
(cherry picked from commit 2220e8189fb94068dbad333228659fbac819abb0)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions