What is CVE-2025-68300?

CVE-2025-68300 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 6.12.59 onward. CVE-2025-68300 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-68300?

CVE-2025-68300 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2025-68300?

No patch is currently available for CVE-2025-68300. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2025-68300 actively exploited?

CVE-2025-68300 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-68300

In the Linux kernel, the following vulnerability has been resolved: fs/namespace: fix reference leak in grab_requested_mnt_ns lookup_mnt_ns() already takes a reference on mnt_ns. grab_requested_mnt_ns() doesn't need to take an extra reference.

Package Linux Kernel

Published 2025-12-16

Last modified 2026-04-15

Patch available

Not yet patched

Affected versions

Linux kernel versions 6.12.59, 6.17.9 and later are affected. No fixed version recorded yet.

Affected from

≥ 6.12.59 ≥ 6.17.9

References

The following references provide additional information about CVE-2025-68300 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/4a16b2a0c1f033f95f5d0b98b9e40e8bf7c4c2c5
Patch
Kernel patch commit
https://git.kernel.org/stable/c/7b6dcd9bfd869eee7693e45b1817dac8c56e5f86
Patch
Kernel patch commit
https://git.kernel.org/stable/c/fe256e59b8e7f126b2464ee32bd9fee131f0a883
Patch