Skip to content
Noroxi
NVD / CVE Program· CNA Linux

CVE-2026-23164: rocker: fix memory leak in rocker_world_port_post_fini()

MediumCVSS 5.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.17% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 2a3a64d75d2d0727da285749476761ebcad557a3, 8ce2e85889939c02740b4245301aa5c35fc94887, 8d7ba71e46216b8657a82ca2ec118bc93812a4d0.

Low priority for now. Upgrade to Linux Linux 2a3a64d75d2d0727da285749476761ebcad557a3, 8ce2e85889939c02740b4245301aa5c35fc94887, 8d7ba71e46216b8657a82ca2ec118bc93812a4d0 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: rocker: fix memory leak in rocker_world_port_post_fini() In rocker_world_port_pre_init(), rocker_port->wpriv is allocated with kzalloc(wops->port_priv_size, GFP_KERNEL). However, in rocker_world_port_post_fini(), the memory is only freed when wops->port_post_fini callback is set: if (!wops->port_post_fini) return; wops->port_post_fini(rocker_port); kfree(rocker_port->wpriv); Since rocker_ofdpa_ops does not implement port_post_fini callback (it is NULL), the wpriv memory allocated for each port is never freed when ports are removed. This leads to a memory leak of sizeof(struct ofdpa_port) bytes per port on every device removal. Fix this by always calling kfree(rocker_port->wpriv) regardless of whether the port_post_fini callback exists.

Published
Feb 14, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 7th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-23164

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits every 10 minutes on paid plans, on the hour on the free plan.

Your free account also gets you

  • CVE alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools, at most 30 a day (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for linux records
Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.6affected
    • e420114eef4a3a5025a243b89b0dc343101e3d3c and later · before 2a3a64d75d2d0727da285749476761ebcad557a3affected · git
    • e420114eef4a3a5025a243b89b0dc343101e3d3c and later · before b11e6f926480ab0939fec44781f28558c54be4e7affected · git
    • e420114eef4a3a5025a243b89b0dc343101e3d3c and later · before 8ce2e85889939c02740b4245301aa5c35fc94887affected · git
    • e420114eef4a3a5025a243b89b0dc343101e3d3c and later · before d448bf96889f1905e740c554780f5c9fa0440566affected · git
    • e420114eef4a3a5025a243b89b0dc343101e3d3c and later · before d8723917efda3b4f4c3de78d1ec1e1af015c0be1affected · git
    • e420114eef4a3a5025a243b89b0dc343101e3d3c and later · before dce375f4afc348c310d171abcde7ec1499a4c26aaffected · git
    • e420114eef4a3a5025a243b89b0dc343101e3d3c and later · before 8d7ba71e46216b8657a82ca2ec118bc93812a4d0affected · git
    • before 4.6not affected · semver
    • 5.10.249 and later · up to and including 5.10.*not affected · semver
Affected versions · NVD (7)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel4.6 and later · before 5.10.249
  • linux linux kernel5.11 and later · before 5.15.199
  • linux linux kernel5.16 and later · before 6.1.162
  • linux linux kernel6.2 and later · before 6.6.123
  • linux linux kernel6.7 and later · before 6.12.69
  • linux linux kernel6.13 and later · before 6.18.9
  • linux linux kernel6.19

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.162-16.1.162-1
Debian:13linuxbefore 6.12.69-16.12.69-1
Debian:14linuxbefore 6.18.9-16.18.9-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2026-23160Feb 14, 2026 · octeon_ep: Fix memory leak in octep_device_setup()
    22Monitor
  • ← EarlierCVE-2026-23163Feb 14, 2026 · drm/amdgpu: fix NULL pointer dereference in amdgpu_gmc_filter_faults_remove
    22Monitor
  • Later →CVE-2026-23166Feb 14, 2026 · ice: Fix NULL pointer dereference in ice_vsi_set_napi_queues
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux2a3a64d75d2d0727da285749476761ebcad557a3Vendor (CNA)
Linux Linux8ce2e85889939c02740b4245301aa5c35fc94887Vendor (CNA)
Linux Linux8d7ba71e46216b8657a82ca2ec118bc93812a4d0Vendor (CNA)
Linux Linuxb11e6f926480ab0939fec44781f28558c54be4e7Vendor (CNA)
Linux Linuxd448bf96889f1905e740c554780f5c9fa0440566Vendor (CNA)
Linux Linuxd8723917efda3b4f4c3de78d1ec1e1af015c0be1Vendor (CNA)
Linux Linuxdce375f4afc348c310d171abcde7ec1499a4c26aVendor (CNA)
debian:linux6.1.162-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-401 · Missing Release of Memory after Effective Lifetime

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (6 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records