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| author |   Tomas Winkler <tomas.winkler@intel.com> | 2020-02-11 18:05:22 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-11 14:03:19 -0800 |
| commit | 3aef021b2df7d8440225a53460c0d34b140297d5 (patch) | |
| tree | cef331537a1db05d2ba8f39ac50db76efe06c26e /drivers/char/virtio_console.c | |
| parent | mei: bus: replace zero-length array with flexible-array member (diff) | |
| download | wireguard-linux-3aef021b2df7d8440225a53460c0d34b140297d5.tar.xz wireguard-linux-3aef021b2df7d8440225a53460c0d34b140297d5.zip | |
mei: limit number of bytes in mei header.
The MEI message header provides only 9 bits for storing
the message size, limiting to 511.
In theory the host buffer (hbuf) can contain up to 1020 bytes
(limited by byte = 255 * 4)
With the current hardware and hbuf size 512, this is not a real issue,
but as hardening approach we enforce the limit.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20200211160522.7562-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char/virtio_console.c')
0 files changed, 0 insertions, 0 deletions