Divide By Zero Affecting kernel-modules-partner package, versions *


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELMODULESPARTNER-8450148
  • published3 Dec 2024
  • disclosed2 Dec 2024

Introduced: 2 Dec 2024

NewCVE-2024-53122  (opens in a new tab)
CWE-369  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 kernel-modules-partner.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-modules-partner package and not the kernel-modules-partner package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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

mptcp: cope racing subflow creation in mptcp_rcv_space_adjust

Additional active subflows - i.e. created by the in kernel path manager - are included into the subflow list before starting the 3whs.

A racing recvmsg() spooling data received on an already established subflow would unconditionally call tcp_cleanup_rbuf() on all the current subflows, potentially hitting a divide by zero error on the newly created ones.

Explicitly check that the subflow is in a suitable state before invoking tcp_cleanup_rbuf().

CVSS Scores

version 3.1