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CVE-2026-72056· NVD / CVE Program· CNA Linux

net: ena: clean up XDP TX queues when regular TX setup fails

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.22% (FIRST EPSS).
  • Fixed version: Linux Linux 11f68ebc6891d11de5f32b7dee918c5dc18b8de1, 1bd6676254b4ab6acd44b662b5e92822c036463a, 523caef03124ecc08ce62a78c617759c2d28cf1c.

Low priority for now. Upgrade to Linux Linux 11f68ebc6891d11de5f32b7dee918c5dc18b8de1, 1bd6676254b4ab6acd44b662b5e92822c036463a, 523caef03124ecc08ce62a78c617759c2d28cf1c 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: net: ena: clean up XDP TX queues when regular TX setup fails create_queues_with_size_backoff() creates XDP TX queues before setting up the regular TX path. If the subsequent allocation or creation of regular TX queues fails, the error handling paths omit the teardown of the XDP TX queues, leading to a resource leak. Fix this by explicitly destroying the XDP TX queue subset at the two missing failure points. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1-rc7. An x86_64 allyesconfig build showed no new warnings. As we do not have an ENA device to test with, no runtime testing was able to be performed.

—No exploit Fix available
Published
Aug 15, 2026
Updated
Aug 17, 2026
EPSS
0.2% · 11th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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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.

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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.

—

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

    • 5.6affected
    • 548c4940b9f1f527f81509468dd60b61418880b6 and later · before df65d9fea8437235e740552e542fb309765507dbaffected · git
    • 548c4940b9f1f527f81509468dd60b61418880b6 and later · before 5daa63404b708fc74e94da8398affbb148d09044affected · git
    • 548c4940b9f1f527f81509468dd60b61418880b6 and later · before 523caef03124ecc08ce62a78c617759c2d28cf1caffected · git
    • 548c4940b9f1f527f81509468dd60b61418880b6 and later · before f2ff634d95f8a6c885b9ce71a64067e255bcc34aaffected · git
    • 548c4940b9f1f527f81509468dd60b61418880b6 and later · before 6773d6d82bdabddab2b31605d6d7029c91dbd217affected · git
    • 548c4940b9f1f527f81509468dd60b61418880b6 and later · before 6596baf8041100a9d1647beb5ea8ea4496ce058faffected · git
    • 548c4940b9f1f527f81509468dd60b61418880b6 and later · before 11f68ebc6891d11de5f32b7dee918c5dc18b8de1affected · git
    • 548c4940b9f1f527f81509468dd60b61418880b6 and later · before 1bd6676254b4ab6acd44b662b5e92822c036463aaffected · git
    • before 5.6not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.180-16.1.180-1
Debian:13linuxbefore 6.12.100-16.12.100-1
Debian:14linuxbefore 7.1.5-17.1.5-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-72048Aug 15, 2026 · ieee802154: ca8210: fix cas_ctl leak on spi_async failure
    0Monitor
  • ← EarlierCVE-2026-72050Aug 15, 2026 · octeontx2-af: Free BPID bitmap on setup failure
    0Monitor
  • Later →CVE-2026-72058Aug 15, 2026 · net: ixp4xx_hss: fix duplicate HDLC netdev allocation
    0Monitor

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 Linux11f68ebc6891d11de5f32b7dee918c5dc18b8de1Vendor (CNA)
Linux Linux1bd6676254b4ab6acd44b662b5e92822c036463aVendor (CNA)
Linux Linux523caef03124ecc08ce62a78c617759c2d28cf1cVendor (CNA)
Linux Linux5daa63404b708fc74e94da8398affbb148d09044Vendor (CNA)
Linux Linux6596baf8041100a9d1647beb5ea8ea4496ce058fVendor (CNA)
Linux Linux6773d6d82bdabddab2b31605d6d7029c91dbd217Vendor (CNA)
Linux Linuxdf65d9fea8437235e740552e542fb309765507dbVendor (CNA)
Linux Linuxf2ff634d95f8a6c885b9ce71a64067e255bcc34aVendor (CNA)
debian:linux6.1.180-1 · 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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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.

Change log

  1. Fix✗ → ✓

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References

Show all references (7 more)

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

All records