Description (CNA)
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().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c76c6956566f974bac2470bd72fc22fb923e04a1 before 0a9a182ea5c7bb0374e527130fd85024ace7279b; affected c76c6956566f974bac2470bd72fc22fb923e04a1 before 24995851d58c4a205ad0ffa7b2f21e479a9c8527; affected c76c6956566f974bac2470bd72fc22fb923e04a1 before ff825ab2f455299c0c7287550915a8878e2a66e0; affected c76c6956566f974bac2470bd72fc22fb923e04a1 before aad6412c63baa39dd813e81f16a14d976b3de2e8; affected c76c6956566f974bac2470bd72fc22fb923e04a1 before ce7356ae35943cc6494cc692e62d51a734062b7d |
| Linux / Linux | affected 5.10; unaffected 0 before 5.10; unaffected 5.15.174 through 5.15.*; unaffected 6.1.119 through 6.1.*; unaffected 6.6.63 through 6.6.*; unaffected 6.11.10 through 6.11.*; unaffected 6.12 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/0a9a182ea5c7bb0374e527130fd85024ace7279b
- https://git.kernel.org/stable/c/24995851d58c4a205ad0ffa7b2f21e479a9c8527
- https://git.kernel.org/stable/c/ff825ab2f455299c0c7287550915a8878e2a66e0
- https://git.kernel.org/stable/c/aad6412c63baa39dd813e81f16a14d976b3de2e8
- https://git.kernel.org/stable/c/ce7356ae35943cc6494cc692e62d51a734062b7d
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.