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NVD / CVE Program· CNA Linux

CVE-2026-68182: comedi: comedi_parport: deal with premature interrupt

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 086a9ae3c5df63ec11033a8c0b3f6a1fd295ddd1, 17221216ae8ce6a24e8a4e787382e3ebc81b88a8, 48ef18e5eb6b8a9c546038b2ab89a841fcd97fe7; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 086a9ae3c5df63ec11033a8c0b3f6a1fd295ddd1, 17221216ae8ce6a24e8a4e787382e3ebc81b88a8, 48ef18e5eb6b8a9c546038b2ab89a841fcd97fe7; azl3 kernel 6.6.143.1-1 on Azure Linux 3.0 6.6.150.1-1 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: comedi: comedi_parport: deal with premature interrupt Syzbot reported a general protection fault in `comedi_get_is_subdevice_running()`, which was called from the interrupt handler `parport_interrupt()` in the "comedi_parport" driver, but it does not currently have a C reproducer for the problem. It's probably due to a premature interrupt for one of two reasons: 1. The driver sets up the interrupt handler before the comedi subdevices used by the interrupt handler have been allocated, but does not disable the interrupt in the parallel port's CTRL register first. 2. The driver uses a user-supplied I/O port base address which Syzbot would have supplied, but it might not be backed by real parallel port hardware. Change the initialization order in the driver's comedi "attach" handler (`parport_attach()`) so that the hardware registers are initialized before the interrupt handler is requested. This should prevent premature interrupts occurring for real hardware. Also add a test to the interrupt handler to ensure the comedi device is fully attached and return early if it isn't.

—No exploit Fix available
Published
Aug 10, 2026
Updated
Aug 19, 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%

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  • A fix has been released

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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

    • 2.6.29affected
    • 241ab6ad7108e51c67881f7881c5e46f0400cdb1 and later · before 6ed34611e569fc1a1169905c5228fd0eb2806c1baffected · git
    • 241ab6ad7108e51c67881f7881c5e46f0400cdb1 and later · before 48ef18e5eb6b8a9c546038b2ab89a841fcd97fe7affected · git
    • 241ab6ad7108e51c67881f7881c5e46f0400cdb1 and later · before a88b25db815ff6edace81b0bb0f4a201133bd215affected · git
    • 241ab6ad7108e51c67881f7881c5e46f0400cdb1 and later · before b061bb4dca49fd93063359d3805387235818778caffected · git
    • 241ab6ad7108e51c67881f7881c5e46f0400cdb1 and later · before 086a9ae3c5df63ec11033a8c0b3f6a1fd295ddd1affected · git
    • 241ab6ad7108e51c67881f7881c5e46f0400cdb1 and later · before cf26dd2d841583c54a87005c4934b92fddb930c3affected · git
    • 241ab6ad7108e51c67881f7881c5e46f0400cdb1 and later · before 5d059ce0e6a2f6f8b97273499d47b8f917097b48affected · git
    • 241ab6ad7108e51c67881f7881c5e46f0400cdb1 and later · before 17221216ae8ce6a24e8a4e787382e3ebc81b88a8affected · git
    • before 2.6.29not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.187-16.1.187-1
Debian:12linux-6.12before 6.12.101-1~deb12u16.12.101-1~deb12u1
Debian:13linuxbefore 6.12.101-16.12.101-1
Debian:14linuxbefore 7.1.6-17.1.6-1

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-2026-68180Aug 10, 2026 · intel_th: fix MSC output device reference leak
    0Monitor
  • ← EarlierCVE-2026-68181Aug 10, 2026 · mei: bus: access mei_device under device_lock on cleanup
    0Monitor
  • Later →CVE-2026-68183Aug 10, 2026 · firmware: stratix10-svc: fix memory leaks and list corruption bugs
    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 Linux086a9ae3c5df63ec11033a8c0b3f6a1fd295ddd1Vendor (CNA)
Linux Linux17221216ae8ce6a24e8a4e787382e3ebc81b88a8Vendor (CNA)
Linux Linux48ef18e5eb6b8a9c546038b2ab89a841fcd97fe7Vendor (CNA)
Linux Linux5d059ce0e6a2f6f8b97273499d47b8f917097b48Vendor (CNA)
Linux Linux6ed34611e569fc1a1169905c5228fd0eb2806c1bVendor (CNA)
Linux Linuxa88b25db815ff6edace81b0bb0f4a201133bd215Vendor (CNA)
Linux Linuxb061bb4dca49fd93063359d3805387235818778cVendor (CNA)
Linux Linuxcf26dd2d841583c54a87005c4934b92fddb930c3Vendor (CNA)
azl3 kernel 6.6.143.1-1 on Azure Linux 3.06.6.150.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.187-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.101-1~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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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.

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