CVE-2025-21748 Information

Description

In the Linux kernel the following vulnerability has been resolved:

ksmbd: fix integer overflows on 32 bit systems

On 32bit systems the addition operations in ipc_msg_alloc() can potentially overflow leading to memory corruption. Add bounds checking using KSMBD_IPC_MAX_PAYLOAD to avoid overflow.

Reference

https://git.kernel.org/stable/c/760568c1f62ea874e8fb492f9cfa4f47b4b8391e https://git.kernel.org/stable/c/82f59d64e6297f270311b16b5dcf65be406d1ea3 https://git.kernel.org/stable/c/aab98e2dbd648510f8f51b83fbf4721206ccae45 https://git.kernel.org/stable/c/b4b902737746c490258de5cb55cab39e79927a67 https://git.kernel.org/stable/c/ecb9947fa7c99a77b04d43404c6988a0d326e4a0