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| author | Fiona Ebner <f.ebner@proxmox.com> | 2022-08-25 11:29:10 +0200 |
|---|---|---|
| committer | Jason Wang <jasowang@redhat.com> | 2023-02-17 13:31:33 +0800 |
| commit | 099a63828130843741d317cb28e936f468b2b53b (patch) | |
| tree | 0cdf73ec5c35e4f7cb687f6164c30ee97c95cafc /linux-user/user-internals.h | |
| parent | 44c94cdb21cd1d1fb9aa6554585b94aa6de7ed9d (diff) | |
| download | focaccia-qemu-099a63828130843741d317cb28e936f468b2b53b.tar.gz focaccia-qemu-099a63828130843741d317cb28e936f468b2b53b.zip | |
hw/net/vmxnet3: allow VMXNET3_MAX_MTU itself as a value
Currently, VMXNET3_MAX_MTU itself (being 9000) is not considered a
valid value for the MTU, but a guest running ESXi 7.0 might try to
set it and fail the assert [0].
In the Linux kernel, dev->max_mtu itself is a valid value for the MTU
and for the vmxnet3 driver it's 9000, so a guest running Linux will
also fail the assert when trying to set an MTU of 9000.
VMXNET3_MAX_MTU and s->mtu don't seem to be used in relation to buffer
allocations/accesses, so allowing the upper limit itself as a value
should be fine.
[0]: https://forum.proxmox.com/threads/114011/
Fixes: d05dcd94ae ("net: vmxnet3: validate configuration values during activate (CVE-2021-20203)")
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'linux-user/user-internals.h')
0 files changed, 0 insertions, 0 deletions