Unknown

CVE-2026-64602 — iio: adc: spear: Initialize completion before requesting IRQ

In the Linux kernel, the following vulnerability has been resolved: iio: adc: spear: Initialize completion before requesting IRQ In the report from Jaeyoung Chung: "spear_adc_probe() in drivers/iio/adc/spear_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 spear_adc_probe(): iodev = devm_iio_device_alloc(&pdev->dev, sizeof(*st)); /* st kzalloc-zeroed */ ... retval = devm_request_irq(&pdev->dev, irq, spear_adc_isr, 0, LPC32XXAD_NAME, st); /* register handler */ ... init_completion(&st->completion); /* initialize completion */ spear_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().

Published Aug 6, 2026 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: Linux

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.2% (30-day exploitation probability)+1

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.17%

ahead of 6% of scored CVEs · Oct 30, 2026

Affects

Linux

CVSS base

—

Score not published yet.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Linux	Linux	≥ b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed and < aea8ae6c4d3ed58d9223360f758df6bd8b90c608≥ b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed and < 67a49ab41320b3f721ce4be7447754ff040acbd5≥ b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed and < a50757398794aaa25f908b96c6733e045466cba4≥ b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed and < f3f90bc7b38ba3ff14f131cea0f8eb77624787a8≥ b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed and < 37077d8271b1f24894fbc21bca1c4cd337525d31≥ b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed and < bbfebae473ac2c8a194523b29ccb9b45f02f134c≥ b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed and < eb5b07c9d0ec1a9d4b6871b14793c19967d79dc4≥ b586e5d9eee038b8ee6f846cdb6cf2fcbcb2f4ed and < 3ee2128b6f0eb0be7b6cb8f6e0f1f113a65201a0 and 1 more version 3.16	Vulnerable	CVE Program (cve.org) e CISA ADP

EPSS over time FIRST

Oct 15, 2026 → Oct 30, 2026 · 15 reading(s) · max 0.17%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Not enough vector or weakness data: use the affected application’s logs as a starting point.

application logs

Timeline

What happened to this CVE, newest first.

2026
Record published
Oct 15, 2026
Affected products added · linux/linux
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Source status changed · → Received
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · NIST National Vulnerability Database
CVE published
Aug 6, 2026 · Linux

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

8 on the record

git.kernel.org/stable/c/eb5b07c9d0ec1a9d4b6871b14793c19967d79dc4
NIST National Vulnerability Database
git.kernel.org/stable/c/aea8ae6c4d3ed58d9223360f758df6bd8b90c608
NIST National Vulnerability Database
git.kernel.org/stable/c/37077d8271b1f24894fbc21bca1c4cd337525d31
NIST National Vulnerability Database
git.kernel.org/stable/c/a50757398794aaa25f908b96c6733e045466cba4
NIST National Vulnerability Database
git.kernel.org/stable/c/f3f90bc7b38ba3ff14f131cea0f8eb77624787a8
NIST National Vulnerability Database
git.kernel.org/stable/c/67a49ab41320b3f721ce4be7447754ff040acbd5
NIST National Vulnerability Database
git.kernel.org/stable/c/bbfebae473ac2c8a194523b29ccb9b45f02f134c
NIST National Vulnerability Database
git.kernel.org/stable/c/3ee2128b6f0eb0be7b6cb8f6e0f1f113a65201a0
NIST National Vulnerability Database

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

High CVE-2026-99216 Drivers: hv: Don't reset VMBus connection state on error/exit paths 3d
Unknown CVE-2026-99215 power: supply: core: prevent unregistering a power supply while a callback runs 3d
Unknown CVE-2026-99207 scsi: target: Disable interrupts while holding delayed_cmd_lock 3d
Unknown CVE-2026-99208 drm/xe/oa: Zero OA buffer at allocation 3d
Unknown CVE-2026-99209 drm/xe: skip eviction of a BO with no resource 3d
Unknown CVE-2026-99210 accel/rocket: clear rdev on device init failure 3d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No CVSS score published by NVD, the CNA, CISA or GitHub so far.
No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No CWE classification.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-64602 is "iio: adc: spear: Initialize completion before requesting IRQ", rated Unknown. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.17% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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