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NVD / CVE Program· CNA Linux

CVE-2026-64500: iio: adc: lpc32xx: Initialize completion before requesting IRQ

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: 0.16% (FIRST EPSS).
  • Fixed version: Linux Linux 0e33587967b356519aa6f220b5b43c6976320397, 1ddf7b6ffb8ebb22b92a184a9eaa76277ef0c7cd, 2f18c5551aa97ca7f39dbb151c67c9053ccadc17.

Low priority for now. Upgrade to Linux Linux 0e33587967b356519aa6f220b5b43c6976320397, 1ddf7b6ffb8ebb22b92a184a9eaa76277ef0c7cd, 2f18c5551aa97ca7f39dbb151c67c9053ccadc17 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: iio: adc: lpc32xx: Initialize completion before requesting IRQ In the report from Jaeyoung Chung: "lpc32xx_adc_probe() in drivers/iio/adc/lpc32xx_adc.c registers its interrupt handler with devm_request_irq() before it initializes st->completion with init_completion(). If an interrupt arrives after devm_request_irq() and before init_completion(), the handler calls complete() on an uninitialized completion, causing a kernel panic. The probe path, in lpc32xx_adc_probe(): iodev = devm_iio_device_alloc(&pdev->dev, sizeof(*st)); /* st kzalloc-zeroed */ ... retval = devm_request_irq(&pdev->dev, irq, lpc32xx_adc_isr, 0, LPC32XXAD_NAME, st); /* register handler */ ... init_completion(&st->completion); /* initialize completion */ lpc32xx_adc_isr() calls complete(): complete(&st->completion); If the device raises an interrupt before init_completion() runs, complete() acquires the uninitialized wait.lock and walks the zeroed task_list in swake_up_locked(). The zeroed task_list makes list_empty() return false, so swake_up_locked() dereferences a NULL list entry, triggering a KASAN wild-memory-access." Fix the chance of a spurious IRQ causing an uninitialized pointer dereference by moving init_completion() above devm_request_irq().

—No exploit Fix available
Published
Jul 25, 2026
Updated
Nov 3, 2026
EPSS
0.1% · 5th 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 · 0.1%

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Noroxi analysis

What does it mean in your environment?

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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

    • 4.12affected
    • 7901b2a1453e48c9defff2c97c67d3089bf4df7a and later · before 7090c0d29708ee305022d0ea7b37612b33242fa2affected · git
    • 7901b2a1453e48c9defff2c97c67d3089bf4df7a and later · before 0e33587967b356519aa6f220b5b43c6976320397affected · git
    • 7901b2a1453e48c9defff2c97c67d3089bf4df7a and later · before 1ddf7b6ffb8ebb22b92a184a9eaa76277ef0c7cdaffected · git
    • 7901b2a1453e48c9defff2c97c67d3089bf4df7a and later · before 820c4f15353efe9a9429ae86ccceeaf4e0e4e585affected · git
    • 7901b2a1453e48c9defff2c97c67d3089bf4df7a and later · before 48eccc6caed4e62c0f199ab3a3772fa969cd3b2daffected · git
    • 7901b2a1453e48c9defff2c97c67d3089bf4df7a and later · before 9e2e8b8cdfd37ae7c7a8a5c96c59e98a768731c4affected · git
    • 7901b2a1453e48c9defff2c97c67d3089bf4df7a and later · before 2f18c5551aa97ca7f39dbb151c67c9053ccadc17affected · git
    • 7901b2a1453e48c9defff2c97c67d3089bf4df7a and later · before e561b35633f450ee607e87a6401d97f156a0cd54affected · git
    • before 4.12not 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:12linux-6.12before 6.12.100-1~deb12u16.12.100-1~deb12u1
Debian:13linuxbefore 6.12.96-16.12.96-1
Debian:14linuxbefore 7.1.4-17.1.4-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

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    40Plan
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  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
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Published before and after this one in the same product

  • ← EarlierCVE-2026-64498Jul 25, 2026 · iio: buffer: hw-consumer: free scan_mask on buffer release
    0Monitor
  • ← EarlierCVE-2026-64499Jul 25, 2026 · iio: adc: ti-ads1119: fix PM reference leak in buffer preenable
    0Monitor
  • Later →CVE-2026-64501Jul 25, 2026 · iio: adc: ad_sigma_delta: fix CS held asserted and state leaks
    28Monitor

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 Linux0e33587967b356519aa6f220b5b43c6976320397Vendor (CNA)
Linux Linux1ddf7b6ffb8ebb22b92a184a9eaa76277ef0c7cdVendor (CNA)
Linux Linux2f18c5551aa97ca7f39dbb151c67c9053ccadc17Vendor (CNA)
Linux Linux48eccc6caed4e62c0f199ab3a3772fa969cd3b2dVendor (CNA)
Linux Linux7090c0d29708ee305022d0ea7b37612b33242fa2Vendor (CNA)
Linux Linux820c4f15353efe9a9429ae86ccceeaf4e0e4e585Vendor (CNA)
Linux Linux9e2e8b8cdfd37ae7c7a8a5c96c59e98a768731c4Vendor (CNA)
Linux Linuxe561b35633f450ee607e87a6401d97f156a0cd54Vendor (CNA)
debian:linux6.1.180-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.100-1~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