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| author | Jason Wang <jasowang@redhat.com> | 2024-01-02 11:29:01 +0800 |
|---|---|---|
| committer | Jason Wang <jasowang@redhat.com> | 2024-01-25 14:58:00 +0800 |
| commit | 2220e8189fb94068dbad333228659fbac819abb0 (patch) | |
| tree | 6bba50644b12a34b2d0e406f07db9450d15157e8 /hw/core/qdev-properties-system.c | |
| parent | 4a4efae44f19528589204581e9e2fab69c5d39aa (diff) | |
| download | qemu-2220e8189fb94068dbad333228659fbac819abb0.zip qemu-2220e8189fb94068dbad333228659fbac819abb0.tar.gz qemu-2220e8189fb94068dbad333228659fbac819abb0.tar.bz2 | |
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>
Diffstat (limited to 'hw/core/qdev-properties-system.c')
0 files changed, 0 insertions, 0 deletions