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Linux Kernel RCU Protection Vulnerability in ndisc_alloc_skb() Function

Vulnerability

A vulnerability has been identified in the Linux kernel's handling of the ndisc_alloc_skb() function, which can be called without proper Real-Time Networking Layer (RTNL) or Read-Copy Update (RCU) protections. This oversight may lead to a use-after-free (UAF) condition. The vulnerability has been addressed by adding the necessary RCU protection.

Impact

Exploitation of this vulnerability could lead to a use-after-free condition, potentially allowing for memory corruption or arbitrary code execution.

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
5.0
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.