CVE-2026-53298

Kernel service interrupt via premature RX queue state

Published Jun 26, 2026 · Updated Jun 26, 2026

NULL pointer dereference in the Airoha QDMA driver in Linux Kernel 6.11 allows local users to interrupt kernel operation. The airoha_qdma_init_rx_queue() routine sets ndesc before allocation completes, so cleanup calls netif_napi_del() on an RX NAPI that netif_napi_add() never initialized. Reachability requires local low-privileged access and a queue-entry or DMA-descriptor allocation failure during RX queue initialization; the documented consequence is a kernel NULL dereference.

CVSS severity5.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the Airoha QDMA driver in Linux Kernel 6.11 allows local users to interrupt kernel operation. The airoha_qdma_init_rx_queue() routine sets ndesc before allocation completes, so cleanup calls netif_napi_del() on an RX NAPI that netif_napi_add() never initialized. Reachability requires local low-privileged access and a queue-entry or DMA-descriptor allocation failure during RX queue initialization; the documented consequence is a kernel NULL dereference.

The record

CVE
CVE-2026-53298
Published
Jun 26, 2026
Updated
Jun 26, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=23020f04932701d5c8363e60756f12b43b8ed752 <14dc48e5ba73d5c69559bf1a1a6884f7843aade7
  2. Affected versionversion=23020f04932701d5c8363e60756f12b43b8ed752 <379050947a1828826ad7ea50c95245a56929b35a
  3. Affected versionversion=23020f04932701d5c8363e60756f12b43b8ed752 <4d4acfa348a1d8c0941004823662ede0fdb5dea5
  4. Affected versionversion=23020f04932701d5c8363e60756f12b43b8ed752 <d36be272adda7f313e39dd118086955d993bf6a7
  5. Affected versionversion=6.11

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=23020f04932701d5c8363e60756f12b43b8ed752 <14dc48e5ba73d5c69559bf1a1a6884f7843aade7; version=23020f04932701d5c8363e60756f12b43b8ed752 <379050947a1828826ad7ea50c95245a56929b35a; version=23020f04932701d5c8363e60756f12b43b8ed752 <4d4acfa348a1d8c0941004823662ede0fdb5dea5; version=23020f04932701d5c8363e60756f12b43b8ed752 <d36be272adda7f313e39dd118086955d993bf6a7; version=6.11

Published CVSS scores

5.5NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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