ACK: [SRU Jammy 0/4] CVE-2023-3439

Cengiz Can cengiz.can at canonical.com
Wed Jul 5 12:52:22 UTC 2023


On 23-07-04 11:21:09, Thadeu Lima de Souza Cascardo wrote:
> [Impact]
> There is a race condition which might trigger a use-after-free on MCTP
> mdev->addrs.
> 
> [Backport]
> mctp_dev refcount had to be introduced and some fixes related to it require
> some backporting due to not having extended address support. One of the
> pre-req commits actually adds some extra support for MCTP over tunnels.
> 
> [Potential regression]
> MCTP users might regress.
> 
> Jeremy Kerr (1):
>   mctp: Add refcounts to mctp_dev
> 
> Lin Ma (1):
>   mctp: defer the kfree of object mdev->addrs
> 
> Matt Johnston (2):
>   mctp: Allow MCTP on tun devices
>   mctp: make __mctp_dev_get() take a refcount hold

Acked-by: Cengiz Can <cengiz.can at canonical.com>

> 
>  include/net/mctpdevice.h |  5 ++++
>  net/mctp/device.c        | 53 +++++++++++++++++++++++++++++-----------
>  net/mctp/neigh.c         |  4 +--
>  net/mctp/route.c         | 19 ++++++++------
>  4 files changed, 58 insertions(+), 23 deletions(-)
> 
> -- 
> 2.34.1
> 
> 
> -- 
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