Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved: tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check() Use RCU to avoid a pair of atomic operations and a potential UAF on dst_dev()->flags. A potential use-after-free was found in the TCP Fast Open implementation in the Linux kernel. The tcp_fastopen_active_disable_ofo_check() function accesses dst_dev()->flags without proper RCU protection, which could lead to accessing a freed network device structure.Details
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| AlmaLinux 9.2 ESU | Planned | — |
| Debian 13 | Will Not Fix | — |