Vulnerability CVE-2024-27418
Published: 2024-05-17

Description:
In the Linux kernel, the following vulnerability has been resolved:

net: mctp: take ownership of skb in mctp_local_output

Currently, mctp_local_output only takes ownership of skb on success, and
we may leak an skb if mctp_local_output fails in specific states; the
skb ownership isn't transferred until the actual output routing occurs.

Instead, make mctp_local_output free the skb on all error paths up to
the route action, so it always consumes the passed skb.

 References:
https://git.kernel.org/stable/c/a3c8fa54e904b0ddb52a08cc2d8ac239054f61fd
https://git.kernel.org/stable/c/cbebc55ceacef1fc0651e80e0103cc184552fc68
https://git.kernel.org/stable/c/a639441c880ac479495e5ab37e3c29f21ae5771b
https://git.kernel.org/stable/c/3773d65ae5154ed7df404b050fd7387a36ab5ef3
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