vulnerability

Red Hat: CVE-2024-46711: kernel: mptcp: pm: fix ID 0 endp usage after multiple re-creations (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:H/Au:S/C:N/I:N/A:C)
Published
Sep 13, 2024
Added
May 15, 2025
Modified
May 15, 2025

Description

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

mptcp: pm: fix ID 0 endp usage after multiple re-creations

'local_addr_used' and 'add_addr_accepted' are decremented for addresses
not related to the initial subflow (ID0), because the source and
destination addresses of the initial subflows are known from the
beginning: they don't count as "additional local address being used" or
"ADD_ADDR being accepted".

It is then required not to increment them when the entrypoint used by
the initial subflow is removed and re-added during a connection. Without
this modification, this entrypoint cannot be removed and re-added more
than once.

Solution(s)

redhat-upgrade-kernelredhat-upgrade-kernel-rt
Title
NEW

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