UnratedFix available

net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start()

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start() sparx_stats_init() calls create_singlethread_workqueue() and not checked the ret value, which may return NULL. And a null-ptr-deref may happen: sparx_stats_init() create_singlethread_workqueue() # failed, sparx5->stats_queue is NULL queue_delayed_work() queue_delayed_work_on() __queue_delayed_work() # warning here, but continue __queue_work() # access wq->flags, null-ptr-deref Check the ret value and return -ENOMEM if it is NULL. So as sparx5_start().

Products: Kernel
Affected versions: Not specified
Fixed versions: 5.15.80, 6.0.10
CVEs: CVE-2022-49806
Confirmed fixed CVEs: Not specified
Updated in this feed: 2 Nov 2026, 20:32 UTC · Revision 1

Source evidence

net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start()

core-osv · Original source

Published 1 May 2025, 14:09 UTC

osv:CVE-2022-49806

Kernel

Fixed versions: 5.15.80, 6.0.10

Complete source record

{
  "id": "08c3cd87688be24c5311f737456c9264b99f948f0ead5c3cdfcf76b7f51d5d81",
  "url": "https://osv.dev/vulnerability/CVE-2022-49806",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: net: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start() sparx_stats_init() calls create_singlethread_workqueue() and not checked the ret value, which may return NULL. And a null-ptr-deref may happen: sparx_stats_init() create_singlethread_workqueue() # failed, sparx5->stats_queue is NULL queue_delayed_work() queue_delayed_work_on() __queue_delayed_work() # warning here, but continue __queue_work() # access wq->flags, null-ptr-deref Check the ret value and return -ENOMEM if it is NULL. So as sparx5_start().",
    "evidence": "osv:CVE-2022-49806",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.80",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.0.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-49806",
      "aliases": [
        "CVE-2022-49806"
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      "affected": [
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                {
                  "fixed": "80e590aeb132887102c3fa79d99b338f099dc952"
                },
                {
                  "fixed": "456327e565dc49d18b2f595f39f47df8a36f1057"
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                {
                  "fixed": "639f5d006e36bb303f525d9479448c412b720c39"
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          ],
          "database_specific": {
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        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.14.0"
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                {
                  "fixed": "5.15.80"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.0.10"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49806.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.550092582Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/456327e565dc49d18b2f595f39f47df8a36f1057",
        "https://git.kernel.org/stable/c/639f5d006e36bb303f525d9479448c412b720c39",
        "https://git.kernel.org/stable/c/80e590aeb132887102c3fa79d99b338f099dc952",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49806.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49806",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49806.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49806",
        "evidence": "/id"
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    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 489906,
  "published_at": "2025-05-01T14:09:32.854+00:00"
}