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NVD / CVE Program· CNA Linux

CVE-2026-90128: vdpa/mlx5: fix wrong list iterated in add_direct_chain error path

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: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 22d52af9e26a72bdfe2dcfb1419a091de4862cd9, 23ae56d9e74c122f95cae71ae3b9fc259fb88446, 637d867530daea61898e3346975978b7f67fc2ac.

Low priority for now. Upgrade to Linux Linux 22d52af9e26a72bdfe2dcfb1419a091de4862cd9, 23ae56d9e74c122f95cae71ae3b9fc259fb88446, 637d867530daea61898e3346975978b7f67fc2ac 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: vdpa/mlx5: fix wrong list iterated in add_direct_chain error path In add_direct_chain(), newly allocated direct MR entries are added to the local list 'tmp', which is spliced into mr->head only on success. On the error path, the cleanup loop was incorrectly iterating over mr->head instead of tmp. Fix by iterating over 'tmp' in the err_alloc cleanup path.

—No exploit Fix available
Published
Sep 17, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 12th 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%

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

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When you'll hear from us

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  • when exploit code appears or is weaponized
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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

    • 5.9affected
    • 94abbccdf2916cb03f9626f2d36c6e9971490c12 and later · before c93defccf5eb0a92bdafa43487be6ce0221a2477affected · git
    • 94abbccdf2916cb03f9626f2d36c6e9971490c12 and later · before ed3462365636df3bc63e34d7468f4faed3f70a4eaffected · git
    • 94abbccdf2916cb03f9626f2d36c6e9971490c12 and later · before 22d52af9e26a72bdfe2dcfb1419a091de4862cd9affected · git
    • 94abbccdf2916cb03f9626f2d36c6e9971490c12 and later · before eeac2ea4ad2654e3f160a9b608d05c9af31433a6affected · git
    • 94abbccdf2916cb03f9626f2d36c6e9971490c12 and later · before 637d867530daea61898e3346975978b7f67fc2acaffected · git
    • 94abbccdf2916cb03f9626f2d36c6e9971490c12 and later · before 6ca752850de3b8162f030793cc15001aec85c4cfaffected · git
    • 94abbccdf2916cb03f9626f2d36c6e9971490c12 and later · before c678d04ac9e5a64c2559c43bce273e845fbd09ebaffected · git
    • 94abbccdf2916cb03f9626f2d36c6e9971490c12 and later · before 23ae56d9e74c122f95cae71ae3b9fc259fb88446affected · git
    • before 5.9not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

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-2026-90126Sep 17, 2026 · rtc: pcf8563: fix clock provider leak on unbind
    0Monitor
  • ← EarlierCVE-2026-90127Sep 17, 2026 · virtio: rtc: time out alarm requests
    0Monitor
  • Later →CVE-2026-90129Sep 17, 2026 · virtio_balloon: quiesce balloon work before device shutdown
    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 Linux22d52af9e26a72bdfe2dcfb1419a091de4862cd9Vendor (CNA)
Linux Linux23ae56d9e74c122f95cae71ae3b9fc259fb88446Vendor (CNA)
Linux Linux637d867530daea61898e3346975978b7f67fc2acVendor (CNA)
Linux Linux6ca752850de3b8162f030793cc15001aec85c4cfVendor (CNA)
Linux Linuxc678d04ac9e5a64c2559c43bce273e845fbd09ebVendor (CNA)
Linux Linuxc93defccf5eb0a92bdafa43487be6ce0221a2477Vendor (CNA)
Linux Linuxed3462365636df3bc63e34d7468f4faed3f70a4eVendor (CNA)
Linux Linuxeeac2ea4ad2654e3f160a9b608d05c9af31433a6Vendor (CNA)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~deb12u1 · 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