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EPSS 0.1%top 98%

A vulnerability in the Linux kernel's airoha network driver can cause a NULL pointer dereference leading to a denial of service. (CVE-2026-53299)

0
Medium
Published: 06/26/2026 (06/26/2026, 21:32:17 UTC)
Source: GCVE Database

Description

A vulnerability in the Linux kernel's airoha network driver can cause a NULL pointer dereference leading to a denial of service. The issue occurs if queue entry list allocation fails in the airoha_qdma_init_tx_queue routine, where cleanup code accesses an uninitialized queue entry array. The flaw is due to early initialization of a descriptor count variable (ndesc) and is fixed by moving this initialization to the end of the initialization routine.

CVSS v3.1

Score 5.5medium

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/08/2026, 13:31:44 UTC

Technical Analysis

The Linux kernel airoha network driver contained a vulnerability where if the allocation of the queue entry list failed during the airoha_qdma_init_tx_queue routine, the cleanup function airoha_qdma_cleanup_tx_queue would dereference a NULL pointer when accessing the queue entry array. This was caused by initializing the ndesc variable too early in the initialization process. The fix involved moving the ndesc initialization to the end of the airoha_qdma_init_tx routine to prevent the NULL pointer dereference.

Potential Impact

This vulnerability results in a denial of service (DoS) condition due to a NULL pointer dereference causing a kernel crash or instability. There is no impact on confidentiality or integrity. The attack vector requires local access with low privileges and no user interaction is needed.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since this is a Linux kernel vulnerability, monitor official Linux kernel releases and vendor advisories for patches addressing this issue. Until a patch is applied, avoid triggering the vulnerable code path if possible.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
GHSA-cpq4-x345-qfwq
Osv Schema Version
1.4.0
Aliases
["CVE-2026-53299"]
Ecosystems
[]
Database Specific Severity
MODERATE
Cvss Version
3.1

Threat ID: 6a4e4ed9c9d9e3dbe3288512

Added to database: 07/08/2026, 13:21:29 UTC

Last enriched: 07/08/2026, 13:31:44 UTC

Last updated: 07/31/2026, 19:24:47 UTC

Views: 7

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