fkie_cve-2022-49806
Vulnerability from fkie_nvd
Published
2025-05-01 15:16
Modified
2025-11-07 19:20
Severity ?
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().
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.1 | |
| linux | linux_kernel | 6.1 | |
| linux | linux_kernel | 6.1 | |
| linux | linux_kernel | 6.1 | |
| linux | linux_kernel | 6.1 |
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"cveTags": [],
"descriptions": [
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: microchip: sparx5: Fix potential null-ptr-deref in sparx_stats_init() and sparx5_start()\n\nsparx_stats_init() calls create_singlethread_workqueue() and not\nchecked the ret value, which may return NULL. And a null-ptr-deref may\nhappen:\n\nsparx_stats_init()\n create_singlethread_workqueue() # failed, sparx5-\u003estats_queue is NULL\n queue_delayed_work()\n queue_delayed_work_on()\n __queue_delayed_work() # warning here, but continue\n __queue_work() # access wq-\u003eflags, null-ptr-deref\n\nCheck the ret value and return -ENOMEM if it is NULL. So as\nsparx5_start()."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: microchip: sparx5: Se corrige un posible null-ptr-deref en sparx_stats_init() y sparx5_start(). sparx_stats_init() llama a create_singlethread_workqueue() y no comprueba el valor ret, lo que puede devolver NULL. Y puede ocurrir un null-ptr-deref: sparx_stats_init() create_singlethread_workqueue() # fall\u00f3, sparx5-\u0026gt;stats_queue es NULL queue_delayed_work() queue_delayed_work_on() __queue_delayed_work() # advertencia aqu\u00ed, pero contin\u00fae __queue_work() # acceso a wq-\u0026gt;flags, null-ptr-deref Compruebe el valor ret y devuelva -ENOMEM si es NULL. As\u00ed como sparx5_start()."
}
],
"id": "CVE-2022-49806",
"lastModified": "2025-11-07T19:20:28.263",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
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"published": "2025-05-01T15:16:03.920",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
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"url": "https://git.kernel.org/stable/c/456327e565dc49d18b2f595f39f47df8a36f1057"
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"vulnStatus": "Analyzed",
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"description": [
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"lang": "en",
"value": "CWE-476"
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],
"source": "nvd@nist.gov",
"type": "Primary"
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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