CVE-2024-53122 (GCVE-0-2024-53122)

Vulnerability from cvelistv5 – Published: 2024-12-02 13:44 – Updated: 2026-05-11 20:51
VLAI
Title
mptcp: cope racing subflow creation in mptcp_rcv_space_adjust
Summary
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().
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c76c6956566f974bac2470bd72fc22fb923e04a1 , < 0a9a182ea5c7bb0374e527130fd85024ace7279b (git)
Affected: c76c6956566f974bac2470bd72fc22fb923e04a1 , < 24995851d58c4a205ad0ffa7b2f21e479a9c8527 (git)
Affected: c76c6956566f974bac2470bd72fc22fb923e04a1 , < ff825ab2f455299c0c7287550915a8878e2a66e0 (git)
Affected: c76c6956566f974bac2470bd72fc22fb923e04a1 , < aad6412c63baa39dd813e81f16a14d976b3de2e8 (git)
Affected: c76c6956566f974bac2470bd72fc22fb923e04a1 , < ce7356ae35943cc6494cc692e62d51a734062b7d (git)
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Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.15.174 , ≤ 5.15.* (semver)
Unaffected: 6.1.119 , ≤ 6.1.* (semver)
Unaffected: 6.6.63 , ≤ 6.6.* (semver)
Unaffected: 6.11.10 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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