CVE-2024-53122 (GCVE-0-2024-53122)
Vulnerability from cvelistv5
Published
2024-12-02 13:44
Modified
2026-08-05 11:43
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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().
References
Impacted products
Vendor Product Version
Linux Linux Version: c76c6956566f974bac2470bd72fc22fb923e04a1
Version: c76c6956566f974bac2470bd72fc22fb923e04a1
Version: c76c6956566f974bac2470bd72fc22fb923e04a1
Version: c76c6956566f974bac2470bd72fc22fb923e04a1
Version: c76c6956566f974bac2470bd72fc22fb923e04a1
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: cope racing subflow creation in mptcp_rcv_space_adjust\n\nAdditional active subflows - i.e. created by the in kernel path\nmanager - are included into the subflow list before starting the\n3whs.\n\nA racing recvmsg() spooling data received on an already established\nsubflow would unconditionally call tcp_cleanup_rbuf() on all the\ncurrent subflows, potentially hitting a divide by zero error on\nthe newly created ones.\n\nExplicitly check that the subflow is in a suitable state before\ninvoking tcp_cleanup_rbuf()."
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