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NVD / CVE Program· CNA Linux

CVE-2026-23422: dpaa2-switch: Fix interrupt storm after receiving bad if_id in IRQ handler

HighCVSS 7.8 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.13% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 00f42ace446f1e4bf84988f2281131f52cd32796, 28fd8ac1d49389cb230d712116f54e27ebec11b8, 5.15.203.

Low priority for now. Upgrade to Linux Linux 00f42ace446f1e4bf84988f2281131f52cd32796, 28fd8ac1d49389cb230d712116f54e27ebec11b8, 5.15.203 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: dpaa2-switch: Fix interrupt storm after receiving bad if_id in IRQ handler Commit 31a7a0bbeb00 ("dpaa2-switch: add bounds check for if_id in IRQ handler") introduces a range check for if_id to avoid an out-of-bounds access. If an out-of-bounds if_id is detected, the interrupt status is not cleared. This may result in an interrupt storm. Clear the interrupt status after detecting an out-of-bounds if_id to avoid the problem. Found by an experimental AI code review agent at Google.

Published
Apr 3, 2026
Updated
Nov 10, 2026
EPSS
0.1% · 2th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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-2026-23422

When you'll hear from us

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  • when exploit code appears or is weaponized
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  • 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.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel5.15.200 and later · before 5.15.203
  • linux linux kernel6.1.163 and later · before 6.1.167
  • linux linux kernel6.6.124 and later · before 6.6.130
  • linux linux kernel6.12.70 and later · before 6.12.77
  • linux linux kernel6.18.10 and later · before 6.18.17
  • linux linux kernel6.19.1 and later · before 6.19.7
  • linux linux kernel6.19
  • linux linux kernel7.0

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

    • 6.19affected
    • 77611cab5bdfff7a070ae574bbfba20a1de99d1b and later · before 7def51cb9fb8b8d5342443372b8cf28d8fbd7f3daffected · git
    • 34b56c16efd61325d80bf1d780d0e176be662f59 and later · before b5bababe7703a7322bc59b803ab1587887a2a5e4affected · git
    • f89e33c9c37f0001b730e23b3b05ab7b1ecface2 and later · before c7becfe3e604d138bd53b8ac3111b2b3e8ec6b0eaffected · git
    • 2447edc367800ba914acf7ddd5d250416b45fb31 and later · before fa4412cdc5178a48799bafcb8af28fd2fbf3d703affected · git
    • 1b381a638e1851d8cfdfe08ed9cdbec5295b18c9 and later · before 00f42ace446f1e4bf84988f2281131f52cd32796affected · git
    • 31a7a0bbeb006bac2d9c81a2874825025214b6d8 and later · before 28fd8ac1d49389cb230d712116f54e27ebec11b8affected · git
    • 31a7a0bbeb006bac2d9c81a2874825025214b6d8 and later · before 74badb9c20b1a9c02a95c735c6d3cd6121679c93affected · git
    • 5.15.200 and later · before 5.15.203affected · semver
    • 6.1.163 and later · before 6.1.167affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.170-16.1.170-1
Debian:13linuxbefore 6.12.85-16.12.85-1
Debian:14linuxbefore 6.19.8-16.19.8-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2026-23419Apr 3, 2026 · net/rds: Fix circular locking dependency in rds_tcp_tune
    22Monitor
  • ← EarlierCVE-2026-23421Apr 3, 2026 · drm/xe/configfs: Free ctx_restore_mid_bb in release
    22Monitor
  • Later →CVE-2026-23428Apr 3, 2026 · ksmbd: fix use-after-free of share_conf in compound request
    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 Linux00f42ace446f1e4bf84988f2281131f52cd32796Vendor (CNA)
Linux Linux28fd8ac1d49389cb230d712116f54e27ebec11b8Vendor (CNA)
Linux Linux5.15.203Vendor (CNA)
Linux Linux6.1.167Vendor (CNA)
Linux Linux6.12.77Vendor (CNA)
Linux Linux6.18.17Vendor (CNA)
Linux Linux6.6.130Vendor (CNA)
Linux Linux74badb9c20b1a9c02a95c735c6d3cd6121679c93Vendor (CNA)
Linux Linux7def51cb9fb8b8d5342443372b8cf28d8fbd7f3dVendor (CNA)
Linux Linuxb5bababe7703a7322bc59b803ab1587887a2a5e4Vendor (CNA)
Linux Linuxc7becfe3e604d138bd53b8ac3111b2b3e8ec6b0eVendor (CNA)
Linux Linuxfa4412cdc5178a48799bafcb8af28fd2fbf3d703Vendor (CNA)
debian:linux6.1.170-1 · 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.

No history yet (it accumulates with the daily EPSS job).

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.
  • A low-privileged account is enough.
  • 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
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

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

nvd-primary

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 (9 more)

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

All records