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Linux Kernel SMB Client Null Pointer Dereference Vulnerability

Vulnerability

A null pointer dereference vulnerability has been identified in the Linux kernel's SMB client. This issue arises in the 'receive_encrypted_standard()' function, where the absence of proper checks for the 'next_buffer' and the return values of 'cifs_buf_get()' and 'cifs_small_buf_get()' can lead to a null pointer dereference.

Impact

Exploitation of this vulnerability causes a null pointer dereference, which can lead to a denial of service by causing a system crash or instability.

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

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
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.