CVE-2026-68321

Unknown

Last modified

CVE-2026-68321 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: net: txgbe: fix FDIR filter leak on remove Perfect FDIR filters can be added while the interface is down and are kept on the software list for later restore. unregister_netdev() only calls ndo_stop when the device is up, so txgbe_fdir_filter_exit() in txgbe_close() is skipped in that case and the filters are leaked on driver remove.

Description

In the Linux kernel, the following vulnerability has been resolved: net: txgbe: fix FDIR filter leak on remove Perfect FDIR filters can be added while the interface is down and are kept on the software list for later restore. unregister_netdev() only calls ndo_stop when the device is up, so txgbe_fdir_filter_exit() in txgbe_close() is skipped in that case and the filters are leaked on driver remove. Free the filter list from txgbe_remove() as well.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 4bdb441105dcea40ac6e01756314c0fdf5173ce1, < 5c2f04258be2645cdd8f87553990948e7054e7fb; >= 4bdb441105dcea40ac6e01756314c0fdf5173ce1, < 2d34421bfa261f7e83bea2f2f75fa75e0c3037d1; >= 4bdb441105dcea40ac6e01756314c0fdf5173ce1, < 4946dea2386333e5d93bfb36df803fefb5a8c635; >= 4bdb441105dcea40ac6e01756314c0fdf5173ce1, < ecaa37826340520664a4e5522f803ff48fc3f564
LinuxLinux6.11

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-68321?
In the Linux kernel, the following vulnerability has been resolved: net: txgbe: fix FDIR filter leak on remove Perfect FDIR filters can be added while the interface is down and are kept on the software list for later restore. unregister_netdev() only calls ndo_stop when the device is up, so txgbe_fdir_filter_exit() in txgbe_close() is skipped in that case and the filters are leaked on driver remove. Free the filter list from txgbe_remove() as well.
How severe is CVE-2026-68321?
Severity scoring for CVE-2026-68321 is pending analysis.
How do I fix CVE-2026-68321?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST