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.

Classification

CVE ID: CVE-2025-21748

Affected Products

Vendor: Linux, Linux

Product: Linux, Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.02% (probability of being exploited)

EPSS Percentile: 2.57% (scored less or equal to compared to others)

EPSS Date: 2025-03-27 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-21748
https://git.kernel.org/stable/c/760568c1f62ea874e8fb492f9cfa4f47b4b8391e
https://git.kernel.org/stable/c/82f59d64e6297f270311b16b5dcf65be406d1ea3
https://git.kernel.org/stable/c/b4b902737746c490258de5cb55cab39e79927a67
https://git.kernel.org/stable/c/ecb9947fa7c99a77b04d43404c6988a0d326e4a0
https://git.kernel.org/stable/c/aab98e2dbd648510f8f51b83fbf4721206ccae45

Timeline