net: txgbe: fix FDIR filter leak on remove
Published Aug 10, 2026
5.5
MEDIUMCVSS 3.1
EPSS 0.21%
Description
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 products
-
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
-
- Version 6.11StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<6.11
- Version 6.12.101StatusunaffectedConstraints<=6.12.*
- Version 6.18.42StatusunaffectedConstraints<=6.18.*
- Version 7.1.6StatusunaffectedConstraints<=7.1.*
- Version 7.2StatusunaffectedConstraints<=*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
No data.
No data.
Red Hat Enterprise Linux 10
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
Red Hat Enterprise Linux for NVIDIA 26
kernel
Out of support scope
Red Hat OpenShift Container Platform 4
openshift/ose-rhel-coreos-8
Not affected
Red Hat OpenShift Container Platform 4
openshift/ose-rhel-coreos-9
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux for NVIDIA 26 | kernel | Out of support scope | n/a |
| Red Hat OpenShift Container Platform 4 | openshift/ose-rhel-coreos-8 | Not affected | n/a |
| Red Hat OpenShift Container Platform 4 | openshift/ose-rhel-coreos-9 | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects Wangxun txgbe NICs. FDIR filters leak on driver remove when interface was down during unregister. Systems without txgbe hardware are not affected.
Red Hat mitigation
To mitigate this issue, prevent the txgbe module from loading. See https://access.redhat.com/solutions/41278 for instructions.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
Aug–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.21% (0.00209) | 10.02th | v5 (v2026.06.15) |
| Aug 11, 2026 | 0.20% (0.00200) | 10.04th | v5 (v2026.06.15) |
References (9)
- https://access.redhat.com/security/cve/CVE-2026-68321 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2513184 Issue Tracking
- https://git.kernel.org/stable/c/2d34421bfa261f7e83bea2f2f75fa75e0c3037d1
- https://git.kernel.org/stable/c/4946dea2386333e5d93bfb36df803fefb5a8c635
- https://git.kernel.org/stable/c/5c2f04258be2645cdd8f87553990948e7054e7fb
- https://git.kernel.org/stable/c/ecaa37826340520664a4e5522f803ff48fc3f564
- https://lore.kernel.org/linux-cve-announce/2026081033-CVE-2026-68321-ca9c@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2026-68321
- https://www.cve.org/CVERecord?id=CVE-2026-68321
Change history (0)
No recorded changes yet.