CVE-2024-53122
Description
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().
How to fix
- linux linux_kernel6.1.119, 6.6.63, 6.11.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.10 ≤ v < 6.1.119, 6.2 ≤ v < 6.6.63, 6.7 ≤ v < 6.11.10, 6.12 | 6.1.119, 6.6.63, 6.11.10 |
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