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VulnerabilityPublished Updated

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

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in fa4412cdc5178a48799bafcb8af28fd2fbf3d703 : update Linux kernel when convenient.

Data as of 10 Nov 2026, 13:06 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
Patch
Available – fixed in fa4412cdc5178a48799bafcb8af28fd2fbf3d703, c7becfe3e604d138bd53b8ac3111b2b3e8ec6b0e, b5bababe7703a7322bc59b803ab1587887a2a5e4 +9

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=5.15.200 <5.15.203
  • >=6.1.163 <6.1.167
  • >=6.6.124 <6.6.130
  • >=6.12.70 <6.12.77
  • >=6.18.10 <6.18.17
Fixed in
  • fa4412cdc5178a48799bafcb8af28fd2fbf3d703
  • c7becfe3e604d138bd53b8ac3111b2b3e8ec6b0e
  • b5bababe7703a7322bc59b803ab1587887a2a5e4
  • 74badb9c20b1a9c02a95c735c6d3cd6121679c93
  • 28fd8ac1d49389cb230d712116f54e27ebec11b8
  • 7def51cb9fb8b8d5342443372b8cf28d8fbd7f3d
  • 6.18.17
  • 6.12.77
  • 6.6.130
  • 6.1.167
  • 5.15.203
  • 00f42ace446f1e4bf84988f2281131f52cd32796
LinuxLinuxAffected
  • =6.19
Fixed in–

AI-suggested

The vulnerability has been fixed in Linux kernel versions 6.18.17, 6.12.77, 6.6.130, 6.1.167, and corresponding commits. Users should upgrade to these fixed versions to remediate the issue. No additional mitigation is required as the fix addresses the root cause.

Description

A vulnerability in the Linux kernel's dpaa2-switch IRQ handler could cause an interrupt storm due to improper handling of out-of-bounds if_id values. The issue was fixed by adding a bounds check and clearing the interrupt status when a bad if_id is detected, preventing repeated interrupts.

References

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