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)
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.
AI Analysis
Technical Summary
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.
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)
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
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
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.
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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