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Linux Kernel ksmbd Integer Overflow Vulnerability on 32-Bit Systems

Vulnerability

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.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
0.6
exploitability
5.3
remediation
0.0
relevance
0.0
threat
3.2
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.