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NVD / CVE Program· CNA Linux

CVE-2026-72133: spi: uniphier: Fix completion initialization order before devm_request_irq()

Noroxi assessment

Priority: Monitor (action score 33/100)

  • 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: 0.18% (FIRST EPSS).
  • Someone with local access to the system can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 077a7bc1c32d3da9670c5e282ea3e5ac8a94be59, 49f6705d80b5e6175d8435d9c72b66bd516a8e89, 82a5746c4c9e94f6f816ec7edea6ddc24417c6a5.

Low priority for now. Upgrade to Linux Linux 077a7bc1c32d3da9670c5e282ea3e5ac8a94be59, 49f6705d80b5e6175d8435d9c72b66bd516a8e89, 82a5746c4c9e94f6f816ec7edea6ddc24417c6a5 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: spi: uniphier: Fix completion initialization order before devm_request_irq() The driver calls devm_request_irq() before initializing the completion used by the interrupt handler. Because the interrupt may occur immediately after devm_request_irq(), the handler may execute before init_completion(). This may result in calling complete() on an uninitialized completion, causing undefined behavior. This has been observed with KASAN. Fix this by initializing the completion before registering the IRQ.

HighCVSS 8.4 · v3.1—No exploit Fix available
Published
Aug 15, 2026
Updated
Aug 17, 2026
EPSS
0.1% · 7th percentile
CWE
—

Report tools

JSON

Action score

33

Monitor

Low priority for now.

CVSS
33 / 40 · 8.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
—
CNA · Linux
8.4
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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-2026-72133

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

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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

    • 4.19affected
    • 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177 and later · before b9fcf0db433d79648ace74bc2b8b88f91e306304affected · git
    • 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177 and later · before 82a5746c4c9e94f6f816ec7edea6ddc24417c6a5affected · git
    • 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177 and later · before f4bb0a91f7badd6d15ac8d783a1169d9e1e95c17affected · git
    • 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177 and later · before 49f6705d80b5e6175d8435d9c72b66bd516a8e89affected · git
    • 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177 and later · before 8b5798ce0007874c14611b8ee4ce6c749855260eaffected · git
    • 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177 and later · before d44b828eb551bd59ba9f22457825cc3db3a39fc1affected · git
    • 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177 and later · before 077a7bc1c32d3da9670c5e282ea3e5ac8a94be59affected · git
    • 5ba155a4d4cc8e4cdd3db6df7d03271a3bd91177 and later · before f3ad1c87d8201e54b66bd6072442f0b5d5a308eeaffected · git
    • before 4.19not 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-2026-72128Aug 15, 2026 · nvmet: fix refcount leak in nvmet_sq_create()
    0Monitor
  • ← EarlierCVE-2026-72132Aug 15, 2026 · NFS: Charge unstable writes by request size, not folio size
    0Monitor
  • Later →CVE-2026-72134Aug 15, 2026 · spi: imx: reconfigure for PIO when DMA cannot be started
    31Monitor

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 Linux077a7bc1c32d3da9670c5e282ea3e5ac8a94be59Vendor (CNA)
Linux Linux49f6705d80b5e6175d8435d9c72b66bd516a8e89Vendor (CNA)
Linux Linux82a5746c4c9e94f6f816ec7edea6ddc24417c6a5Vendor (CNA)
Linux Linux8b5798ce0007874c14611b8ee4ce6c749855260eVendor (CNA)
Linux Linuxb9fcf0db433d79648ace74bc2b8b88f91e306304Vendor (CNA)
Linux Linuxd44b828eb551bd59ba9f22457825cc3db3a39fc1Vendor (CNA)
Linux Linuxf3ad1c87d8201e54b66bd6072442f0b5d5a308eeVendor (CNA)
Linux Linuxf4bb0a91f7badd6d15ac8d783a1169d9e1e95c17Vendor (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

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

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

Weakness class (CWE)

—

CVSS vector

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

nvd-secondary

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✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

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

All records