Linux Kernel ksmbd Integer Overflow Vulnerability on 32-Bit Systems

An integer overflow vulnerability has been identified in the Linux kernel's ksmbd component, specifically on 32-bit systems. The issue arises in the ipc_msg_alloc() function, where addition operations can potentially overflow, leading to memory corruption. This vulnerability has been addressed by implementing bounds checking using KSMBD_IPC_MAX_PAYLOAD to prevent such overflow conditions.

Impact

Exploitation of this vulnerability could lead to memory corruption.