What’s Vulnerable › Vulnerabilities

CVE-2023-2176

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-04-20 · updated 2026-06-17
• Weakness: CWE-125

Description

A vulnerability was found in compare_netdev_and_ip in drivers/infiniband/core/cma.c in RDMA in the Linux Kernel. The improper cleanup results in out-of-boundary read, where a local user can utilize this problem to crash the system or escalation of privilege.

Affected products

• Linux kernel: from 6.0 before 6.1.81; from 6.2 before 6.3 — fixed in 6.1.81, 6.3

How to fix

Upgrade to a fixed version: Linux kernel 6.1.81, 6.3. Check the vendor advisory for mitigations.

References

• https://security.netapp.com/advisory/ntap-20230609-0005/
• https://www.spinics.net/lists/linux-rdma/msg114749.html
• https://security.netapp.com/advisory/ntap-20230609-0005/
• https://www.spinics.net/lists/linux-rdma/msg114749.html

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