dpaa2-switch: add bounds check for if_id in IRQ handler

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2026-23180
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-02-14 17:15:55 UTC
Updated2026-04-03 14:16:25 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: dpaa2-switch: add bounds check for if_id in IRQ handler The IRQ handler extracts if_id from the upper 16 bits of the hardware status register and uses it to index into ethsw->ports[] without validation. Since if_id can be any 16-bit value (0-65535) but the ports array is only allocated with sw_attr.num_ifs elements, this can lead to an out-of-bounds read potentially. Add a bounds check before accessing the array, consistent with the existing validation in dpaa2_switch_rx().

Risk And Classification

Primary CVSS: v3.1 7 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.000180000 probability, percentile 0.046740000 (date 2026-04-04)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 77611cab5bdfff7a070ae574bbfba20a1de99d1b git Not specified
CNA Linux Linux affected 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 34b56c16efd61325d80bf1d780d0e176be662f59 git Not specified
CNA Linux Linux affected 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 f89e33c9c37f0001b730e23b3b05ab7b1ecface2 git Not specified
CNA Linux Linux affected 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 2447edc367800ba914acf7ddd5d250416b45fb31 git Not specified
CNA Linux Linux affected 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 1b381a638e1851d8cfdfe08ed9cdbec5295b18c9 git Not specified
CNA Linux Linux affected 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 31a7a0bbeb006bac2d9c81a2874825025214b6d8 git Not specified
CNA Linux Linux affected 5.15 Not specified
CNA Linux Linux unaffected 5.15 semver Not specified
CNA Linux Linux unaffected 5.15.200 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.163 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.124 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.70 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.10 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/1b381a638e1851d8cfdfe08ed9cdbec5295b18c9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/31a7a0bbeb006bac2d9c81a2874825025214b6d8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/77611cab5bdfff7a070ae574bbfba20a1de99d1b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2447edc367800ba914acf7ddd5d250416b45fb31 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f89e33c9c37f0001b730e23b3b05ab7b1ecface2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/34b56c16efd61325d80bf1d780d0e176be662f59 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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