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

sctp: validate embedded address parameter length

sctp_verify_asconf() and sctp_verify_param() only validate ADD_IP, DEL_IP,
and SET_PRIMARY parameters against a fixed minimum size of sizeof(struct
sctp_addip_param) + sizeof(struct sctp_paramhdr). This ensures the outer
parameter is large enough to contain an embedded address parameter header,
but does not verify that the embedded address parameter's declared length
fits within the bounds of the outer parameter.

Later, sctp_process_param() and sctp_process_asconf_param() extract the
embedded address parameter and pass it to af->from_addr_param(), which uses
the address parameter length to parse the variable-length address payload.
A malformed peer can therefore advertise an embedded address parameter
length that exceeds the remaining bytes in the enclosing parameter.

Validate that addr_param->p.length does not exceed the space available
after the sctp_addip_param header before processing the embedded address
parameter. Reject malformed parameters when the embedded address length
extends beyond the enclosing parameter bounds.

This prevents out-of-bounds reads when parsing malformed parameters carried
in INIT or ASCONF processing paths.

https://git.kernel.org/stable/c/06c8bf48505f2fef265931db82d5003d302a347b

https://git.kernel.org/stable/c/0c674b20c9cdb54f8a46c88b4d00cadf82b8f0c0

https://git.kernel.org/stable/c/28ba1d3c956604a89168adfb4c97cfc6c509bba5

https://git.kernel.org/stable/c/3a44b2602d57e11e2eb85958d4cd500d14a27d9e

https://git.kernel.org/stable/c/85f54cf589163a75fa06e37d8c2a4a72824c6dd1

https://git.kernel.org/stable/c/92e4adfee56f32a963ebb105c6cd9a1ed707262a

https://git.kernel.org/stable/c/e9361d0ca55c4af12aac09e2572852fa91046229

https://git.kernel.org/stable/c/ed8605c6f39b9b84f9a4631db6deb25e7f1e973c

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