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| author |   Mohsin Kazmi <sykazmi@cisco.com> | 2021-05-12 14:51:29 +0200 |
|---|---|---|
| committer |   Beno�t Ganne <bganne@cisco.com> | 2021-05-17 08:46:29 +0000 |
| commit | 637c97c7d05813ee2cd60c07746ae6205fbb4202 (patch) | |
| tree | 71ffb530c6f12dea6b17c6c257f6aa143c0f9f02 /src/vnet/devices/virtio/virtio.h | |
| parent | af97221c6ae8f08716b3de212fa111b13282f241 (diff) | |
virtio: add the checks for descriptors chain len
Type: fix
virtio uses indirect descriptors for chain buffers.
indirect descriptor chain is mapped on a vlib_buffer_t.
Single descriptor is 16 bytes and vlib_buffer_t has
2048 bytes space. So maximum long chain can have
128 (=2048/16) indirect descriptors.
This patch adds check to make sure descriptors chain
len should not exceed 128.
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Change-Id: I060cfb7709568f42c9b5634527172690ce66a1a3
Diffstat (limited to 'src/vnet/devices/virtio/virtio.h')
0 files changed, 0 insertions, 0 deletions