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

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Summary

CVECVE-2026-23422
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-03 14:16:28 UTC
Updated2026-04-24 15:21:10 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

EPSS: 0.000320000 probability, percentile 0.092520000 (date 2026-04-21)

Problem Types: CWE-787

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 77611cab5bdfff7a070ae574bbfba20a1de99d1b 7def51cb9fb8b8d5342443372b8cf28d8fbd7f3d git Not specified
CNA Linux Linux affected 34b56c16efd61325d80bf1d780d0e176be662f59 b5bababe7703a7322bc59b803ab1587887a2a5e4 git Not specified
CNA Linux Linux affected f89e33c9c37f0001b730e23b3b05ab7b1ecface2 c7becfe3e604d138bd53b8ac3111b2b3e8ec6b0e git Not specified
CNA Linux Linux affected 2447edc367800ba914acf7ddd5d250416b45fb31 fa4412cdc5178a48799bafcb8af28fd2fbf3d703 git Not specified
CNA Linux Linux affected 1b381a638e1851d8cfdfe08ed9cdbec5295b18c9 00f42ace446f1e4bf84988f2281131f52cd32796 git Not specified
CNA Linux Linux affected 31a7a0bbeb006bac2d9c81a2874825025214b6d8 28fd8ac1d49389cb230d712116f54e27ebec11b8 git Not specified
CNA Linux Linux affected 31a7a0bbeb006bac2d9c81a2874825025214b6d8 74badb9c20b1a9c02a95c735c6d3cd6121679c93 git Not specified
CNA Linux Linux affected 6.19 Not specified
CNA Linux Linux unaffected 6.19 semver Not specified
CNA Linux Linux unaffected 5.15.203 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.167 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.130 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.77 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.17 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.7 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/28fd8ac1d49389cb230d712116f54e27ebec11b8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/00f42ace446f1e4bf84988f2281131f52cd32796 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/74badb9c20b1a9c02a95c735c6d3cd6121679c93 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c7becfe3e604d138bd53b8ac3111b2b3e8ec6b0e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/7def51cb9fb8b8d5342443372b8cf28d8fbd7f3d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/fa4412cdc5178a48799bafcb8af28fd2fbf3d703 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b5bababe7703a7322bc59b803ab1587887a2a5e4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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