CVE-2025-68221
Linux Kernel vulnerability analysis and mitigation

In the Linux kernel, the following vulnerability has been resolved:

mptcp: fix address removal logic in mptcp_pm_nl_rm_addr

Fix inverted WARN_ON_ONCE condition that prevented normal address removal counter updates. The current code only executes decrement logic when the counter is already 0 (abnormal state), while normal removals (counter > 0) are ignored.


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-oem-6.14
NoYesJan 05, 2026
CVE-2025-68756HIGH7.1
  • Linux KernelLinux Kernel
  • kernel-rt-64k-debug
NoYesJan 05, 2026
CVE-2025-68764MEDIUM5.5
  • Linux KernelLinux Kernel
  • kernel-rt-64k-core
NoYesJan 05, 2026
CVE-2025-68758MEDIUM5.5
  • Linux KernelLinux Kernel
  • linux-nvidia-tegra-5.15
NoYesJan 05, 2026
CVE-2025-68762N/AN/A
  • Linux KernelLinux Kernel
  • linux-aws-fips
NoYesJan 05, 2026

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