CVE-2021-4218
Linux Kernel vulnerability analysis and mitigation

A flaw was found in the Linux kernel’s implementation of reading the SVC RDMA counters. Reading the counter sysctl panics the system. This flaw allows a local attacker with local access to cause a denial of service while the system reboots. The issue is specific to CentOS/RHEL.


SourceNVD

Related Linux Kernel vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-68753HIGH7.8
  • Linux KernelLinux Kernel
  • linux-realtime
NoYesJan 05, 2026
CVE-2025-68756HIGH7.1
  • Linux KernelLinux Kernel
  • linux-oracle
NoYesJan 05, 2026
CVE-2025-68764MEDIUM5.5
  • Linux KernelLinux Kernel
  • linux-realtime
NoYesJan 05, 2026
CVE-2025-68758MEDIUM5.5
  • Linux KernelLinux Kernel
  • kernel-zfcpdump-core
NoYesJan 05, 2026
CVE-2025-68762N/AN/A
  • Linux KernelLinux Kernel
  • kernel
NoYesJan 05, 2026

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